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1
Considine, Lynda Jayne. "Discourses of the River Murray : a Foucauldian analysis /." Title page, table of contents and abstract only, 2003. http://web4.library.adelaide.edu.au/theses/09AR/09arc7558.pdf.
Full textAbstract:
Thesis (B.A.(Hons.)) -- University of Adelaide, School of History and Politics, Discipline of Politics and School of Social Sciences, Discipline of Environmental Studies, 2003.<br>"November 2003" Bibliography: leaves 68-74.
2
Barrett, Brian Edward. "Water-borne geophysics for Murray River salt-load detection." Title page, contents and abstract only, 2003. http://web4.library.adelaide.edu.au/theses/09SM/09smb2741.pdf.
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Includes bibliographical references (leaves 112-115) Towed DC Resistivity and Transient Electromagnetic arrays have been trialled for suitability in monitoring salt-loads on the Murray River at Waikerie, South Australia.
3
Burton, C. M. "Management of the River Murray during periods of extended drought /." Title page, contents and abstract only, 1988. http://web4.library.adelaide.edu.au/theses/09ENS/09ensb974.pdf.
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4
Williams, Mark Donald. "Salinity tolerance of small fishes from the Murray-Darling river system /." Title page, contents and conclusions only, 1987. http://web4.library.adelaide.edu.au/theses/09SB/09sbw725.pdf.
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5
Sheldon, Fran. "Littoral ecology of a regulated dryland river (River Murray, South Australia), with reference to the gastropoda /." Title page, contents and abstract only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phs5441.pdf.
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6
Boys, Craig Ashley, and n/a. "Fish-Habitat Associations in a Large Dryland River of the Murray-Darling Basin, Australia." University of Canberra. Resource, Environmental & Heritage Sciences, 2007. http://erl.canberra.edu.au./public/adt-AUC20070807.112943.
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Many aspects concerning the association of riverine fish with in-channel habitat remain
poorly understood, greatly hindering the ability of researchers and managers to address
declines in fish assemblages. Recent insights gained from landscape ecology suggest
that small, uni-scalar approaches are unlikely to effectively determine those factors that
influence riverine structure and function and mediate fish-habitat associations. There
appears to be merit in using multiple-scale designs built upon a geomorphologically-derived
hierarchy to bridge small, intermediate and large spatial scales in large rivers.
This thesis employs a hierarchical design encompassing functional process zones
(referred to hereafter as zones), reaches and mesohabitats to investigate fish-habitat
associations as well as explore patterns of in-channel habitat structure in one of
Australia's largest dryland river systems; the Barwon-Darling River.
In this thesis, empirical evidence is presented showing that large dryland rivers are
inherently complex in structure and different facets of existing conceptual models of
landscape ecology must be refined when applied to these systems. In-channel habitat
and fish exist within a hierarchical arrangement of spatial scales in the riverscape,
displaying properties of discontinuities, longitudinal patterns and patch mosaics. During
low flows that predominate for the majority of time in the Barwon-Darling River there
is a significant difference in fish assemblage composition among mesohabitats. There is
a strong association between large wood and golden perch, Murray cod and carp, but
only a weak association with bony herring. Golden perch and Murray cod are large
wood specialists, whereas carp are more general in there use of mesohabitats. Bony
herring are strongly associated with smooth and irregular banks but are ubiquitous in
most mesohabitats. Open water (mid-channel and deep pool) mesohabitats are
characterised by relatively low abundances of all species and a particularly weak
association with golden perch, Murray cod and carp. Murray cod are weakly associated
with matted bank, whereas carp and bony herring associate with this mesohabitat patch
in low abundance.
Nocturnal sampling provided useful information on size-related use of habitat that was
not evident from day sampling. Both bony herring and carp exhibited a variety of
habitat use patterns throughout the die1 period and throughout their lifetime, with
temporal partitioning of habitat use by juvenile bony herring and carp evident. Much of
the strong association between bony herring and smooth and irregular banks was due to
the abundance of juveniles (<100mm in length) in these mesohabitats. Adult bony
herring (>100mm length) occupied large wood more than smooth and irregular banks.
At night, juvenile bony herring were not captured, suggesting the use of deeper water
habitats. Adult bony herring were captured at night and occupjed large wood, smooth
bank and irregular bank. Juvenile carp (<200mm length) were more abundant at night
and aggregated in smooth and irregular banks more than any other mesohabitat patch.
Adult carp (>200mm length) occupied large wood during both day and night.
There is a downstream pattern of change in the fish assemblage among river zones, with
reaches in Zone 2 containing a larger proportion of introduced species (carp and
goldfish) because of a significantly lower abundance of native species (bony herring,
golden perch and Murray cod) than all other zones. In comparison, the fish assemblage
of Zone 3 was characterised by a comparatively higher abundance of the native species
bony herring, golden perch and Murray cod. A significant proportion of the amongreach
variability in fish assemblage composition was explained at the zone scale,
suggesting that geomorphological influences may impose some degree of top-down
constraint over fish assemblage distribution. Although mesohabitat composition among
reaches in the Barwon-Darling River also changed throughout the study area, this
pattern explained very little of the large-scale distribution of the fish assemblage, with
most of the variability in assemblage distribution remaining unexplained. Therefore,
although mesohabitat patches strongly influence the distribution of species within
reaches, they explain very little of assemblage composition at intermediate zone and
larger river scales. These findings suggest that small scale mesohabitat rehabilitation
projects within reaches are unlikely to produce measurable benefits for the fish
assemblage over intermediate and large spatial scales in the Barwon-Darling River. This
indicates the importance taking a holistic approach to river rehabilitation that correctly
identifies and targets limiting processes at the correct scales.
The variable nature of flow-pulse dynamics in the Barwon-Darling River creates a
shifting habitat mosaic that serves to maintain an ever-changing arrangement of habitat
patches. The inundation dynamics of large wood habitat described in this thesis
highlights the fragmented nature of mesohabitat patches, with the largest proportion of
total in-channel large wood remaining unavailable to fish for the majority of the time.
At low flows there is a mosaic of large wood habitat and with increasing discharge more
potential large wood habitat becomes available and does so in a complex spatial
manner. What results in this dryland river is a dynamic pattern of spatio-temporal
patchiness in large wood habitat availability that is seen both longitudinally among
different river zones and vertically among different heights in the river channel. Water
resource development impacts on this shifting habitat mosaic.
Projects undertaking both fish habitat assessment and rehabilitation need to carefully
consider spatial scale since the drivers of fish assemblage structure can occur at scales
well beyond that of the reach. Fish-habitat associations occurring at small spatial scales
can become decoupled by process occurring across large spatial scales, making
responses in the fish assemblage hard to predict. As rivers become increasingly
channelised, there is an urgent need to apply research such as that conducted in this
thesis to better understand the role that in-channel habitats play in supporting fish and
other ecosystem processes. Habitat rehabilitation projects need to be refined to consider
the appropriate scales at which fish assemblages associate with habitat. Failure to do so
risks wasting resources and forgoes valuable opportunities for addressing declines in
native fish populations. Adopting multi-scalar approaches to understanding ecological
processes in aquatic ecosystems, as developed in this thesis, should be a priority of
research and management. To do so will enable more effective determination of those
factors that influence riverine structure and function at the approariate scale.
7
Blanch, Stuart James. "Influence of water regime on growth and resource allocation in aquatic macrophytes of the lower River Murray, Australia /." Title page, summary and contents only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phb639.pdf.
Full textAbstract:
Thesis (Ph. D.)--University of Adelaide, Depts. of Zoology and Botany, 1998?<br>Addendum inserted. Includes copies of author's previously published papers. Includes bibliographical references (p. 390-414).
8
Chapman, Melissa Gaye. "River Murray floodplain vegetation : a case study of the Purnong-Bowhill area /." Title page, table of contents and abstract only, 1990. http://web4.library.adelaide.edu.au/theses/09AR/09arc4662.pdf.
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9
Fluin, Jennie 1972. "A diatom-based palaeolimnological investigation of the lower Murray River (south east Australia)." Monash University, School of Geography and Environmental Science, 2002. http://arrow.monash.edu.au/hdl/1959.1/8544.
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10
Jian, Jun. "Predictability of Current and Future Multi-River discharges: Ganges, Brahmaputra, Yangtze, Blue Nile, and Murray-Darling Rivers." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19777.
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Thesis (Ph.D)--Earth and Atmospheric Sciences, Georgia Institute of Technology, 2008.<br>Committee Chair: Judith Curry; Committee Chair: Peter J Webster; Committee Member: Marc Stieglitz; Committee Member: Robert Black; Committee Member: Rong Fu.
11
Dogramaci, Shawan Shawket. "Isotopes of sulphur, oxygen, strontium and carbon in groundwater as tracers of mixing and geochemical processes, Murray Basin, Australia /." Title page, table of contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phd654.pdf.
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12
Francis, Cathy, and n/a. "A multi-scale investigation into the effects of permanent inundation on the flood pulse, in ephemeral floodplain wetlands of the River Murray." University of Canberra. Health, Design & Science, 2005. http://erl.canberra.edu.au./public/adt-AUC20061128.153926.
Full textAbstract:
Using a multi-scale experimental approach, the research undertaken in this thesis investigated the role
of the flood pulse in ephemeral floodplain wetlands of the River Murray, in order to better understand
the impact of river regulation (and permanent inundation) on these wetlands.
An ecosystem-based experiment was conducted on the River Murray floodplain, to compare changes
in nutrient availability and phytoplankton productivity in three ephemeral wetlands (over a drying/reflooding
cycle) with three permanently inundated wetlands. In the ephemeral wetlands, both drying
and re-flooding phases were associated with significant increases in nutrient availability and, in some
cases, phytoplankton productivity. It was demonstrated that the ?flood pulse?, as described by the
Flood Pulse Concept (FPC), can occur in ephemeral wetlands in dryland river-floodplain systems,
although considerable variation in the nature of the pulse existed amongst these wetlands. Results of
this experiment suggest that factors such as the degree of drying and length of isolation during the dry
phase, the rate of re-filling, timing of re-flooding and the number of drying/re-flooding cycles may be
potentially important in producing the variation observed.
Permanent inundation of ephemeral wetlands effectively removed these periods of peak nutrient
availability and phytoplankton productivity, resulting in continuously low levels (of nutrient availability
and phytoplankton productivity). It was concluded that alteration of the natural hydrological cycle in
this way can significantly reduce nutrient availability, primary production and secondary production,
essentially changing the structure and function, the ecology, of these wetlands. Equally, the results of
this experiment indicate that some of the changes resulting from river regulation and permanent
inundation can be somewhat reversed, within a relatively short period of time, given re-instatement of
a more natural hydrological regime.
A mesocosm experiment was used to examine the influence of the dry phase, specifically the effect of
the degree of wetland drying, on patterns of nutrient availability and primary productivity comprising
the flood pulse. Compared to permanent inundation, re-flooding of completely desiccated sediments
increased carbon (C) and nitrogen (N) availability while partial drying generally decreased, or had little
effect on, C and N availability after re-flooding. However, degree of drying had little effect on
phosphorus availability or rates of primary production measured after re-flooding, and it is possible
that these two factors are related. Partial drying reduced rates of community respiration after reflooding,
possibly a reflection of the reduced carbon concentrations measured in these mesocosms in
this phase of the experiment. Degree of drying also influenced the macrophyte community (measured
after three months of flooding), with plant biomass generally decreasing and species diversity
increasing as the degree of drying increased (with the exception of complete sediment desiccation
which had lasting negative effects on both macrophyte biomass and species diversity).
The results of the ecosystem and mesocosm experiments were utilised, in addition to results collected
from the same experiment conducted at two smaller scales (minicosms and microcosms), to assess
whether the effects of hydrological regime on nutrient availability at the ?wetland? scale could be
replicated in smaller-scale experiments. None of the smaller-scaled experiments included in this
investigation were able to replicate the specific response to hydrological regime recorded at the
ecosystem scale, however the mesocosm experiment did produce results that were more similar to
those at the ecosystem scale than those produced by the mini and microcosm experiments. The
results of this study indicated that extrapolation of results from small-scale experiments should be
undertaken with caution, and confirmed that a multi-scale approach to ecological research is wise,
where large-scale field experimentation and/or monitoring provides a check on the accuracy, and
hence relevance, of conclusions reached via mesocosm experiments.
13
Arumugam, Phillip T. "An experimental approach to golden perch (Macquaria ambigua) fry-zooplankton interactions in fry rearing ponds, south-eastern Australia /." Title page, contents and introduction only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09pha793.pdf.
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14
Burns, Adrienne. "The role of disturbance in the ecology of biofilms in the River Murray, South Australia /." Title page, abstract and contents only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phb9668.pdf.
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15
Schmidt, Rolf. "Stratigraphy and macrofaunal assemblages of the Oligo-Miocene Mannum Formation, Lower Murray River Cliffs, South Australia /." Adelaide, 1996. http://web4.library.adelaide.edu.au/theses/09SB/09sbs349.pdf.
Full textAbstract:
Thesis (B. Sc. (Hons.))--University of Adelaide, Dept. of Geology and Geophysics, 1996.<br>One folded chart in pocket on back cover. Australian National Grid reference Adelaide sheet S1 54/9 Renmark sheet S1 54/10 1:250 000. Includes bibliographical references (leaves 38-42).
16
Vilizzi, Lorenzo. "Age, growth and early life history of Carp (Cyprinus carpio L.) in the River Murray, South Australia /." Title page, table of contents and synopsis only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phv711.pdf.
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Thesis (Ph. D.)--University of Adelaide, Dept. of Zoology, 1998?<br>Addendum and erratum pasted onto back fly leaf. Copy of author's previously published work inserted. Includes bibliographical references (p. 169-215).
17
Spencer, Ricky-John. "The Murray River turtle, Emydura macquarii population dynamics, nesting ecology and impact of the introduced red fox, Vulpes vulpes /." Connect to full text, 2000. http://hdl.handle.net/2123/373.
Full textAbstract:
Thesis (Ph. D.)--University of Sydney, 2001.<br>Includes tables. Title from title screen (viewed Apr. 22, 2008). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Biological Sciences, Faculty of Science. Degree awarded 2001; thesis submitted 2000. Includes bibliography. Also available in print form.
18
George, Amy Kathryn. "Eucalypt regeneration on the Lower Murray floodplain, South Australia." Connect to this title online, 2004. http://hdl.handle.net/2440/37706.
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Vegetation along the River Murray floodplains has been shown to be in a severe state of decline. This decline is amplified by the impositions of river regulation. In South Australia, where vegetation losses have been great, regeneration is limited and may result in not only individual tree losses but also widespread population decline. This study aimed to examine the relationship between river flows and the regeneration process in populations of Eucalyptus camaldulensis and Eucalyptus largiflorens. The current structure of the populations was examined to determine if a viable number of varying age-classed trees were present. Tree surveys conducted at Banrock Station determined that while densities were low for both species, E. camaldulensis had a more sustainable population structure than E. largiflorens. Growth stages for both species illustrated highly clumped distribution, which is believed to correspond with river flooding magnitudes and frequencies. To address the potential link between tree distribution and flooding within the River Murray, a hydrological analysis was conducted for Banrock Station using river flows at the South Australian border from 1900 to 2003. The amount of time growth stages for each species were inundated was found to be greatly reduced under regulated flows compared to natural flows. This has resulted in shifted localized regeneration patterns corresponding with E. camaldulensis' greater demand for inundation than E. largiflorens. Moderate magnitude flows have been most impacted by regulation, and consequently these are the very flows needed for floodplain tree population maintenance. Flowering and seed fall for E. camaldulensis and E. largiflorens were monitored at Banrock Station for 22 months to identify losses in reproductive potential resulting from tree decline. While seed viability was not affected by vigour, trees with visually reduced vigour were found to produce less fruit and had reduced seed fall, as well as a reduced rate of fruit development. Dendrochronological techniques were applied to floodplain trees. Age and size relationships could be established, implying that such techniques can be applied in South Australia to high quality sites. Growth responses within cohorts were similar and easily matched between individuals illustrating cyclic, but not necessarily seasonal correlations. This work verified the preferential selection of younger trees for dendroecological studies, and identified a relationship between on moderate flows and measurable girth expansion in both floodplain tree species.<br>Thesis (Ph.D.)--School of Earth and Environmental Sciences, 2004.
19
Baumgartner, Lee Jason, and n/a. "Effects of weirs on fish movements in the Murray-Darling Basin." University of Canberra. Resource, Environmental & Heritage Sciences, 2005. http://erl.canberra.edu.au./public/adt-AUC20051129.142046.
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Dams and weirs are widely implicated in large-scale declines in both the range and abundance of aquatic fauna. Although many factors are involved, such declines are commonly attributed to the prevention or reduction of migration, reductions in available habitat, alteration of natural flow regimes and changes to physicochemical characteristics. In Australia, studies into the ecological effects of these impacts are limited, and have concentrated mainly on species of recreational and commercial importance. Subsequently, the adverse effects of dams and weirs, and suitable methods of mitigation, remain largely unknown for many other taxa. Therefore, the major aim of this thesis is to investigate the ecological effects of dam and weir construction on previously unstudied migratory assemblages of fish and macroinvertebrates in the Murray-Darling Basin. It is anticipated that the results of these studies will feed back into improved management strategies that help arrest the previously observed declines of aquatic fauna. Initially, fish communities were sampled, by boat electrofishing, from both reference sites and downstream of Balranald and Redbank weirs on the lower reaches of the Murrumbidgee River, Australia. Sampling was stratified over large spatial and temporal scales to gain a comprehensive understanding of species most affected by the presence of these two barriers. In general, the weirs obstructed fish migrations during summer and autumn and many species of small-bodied fish such as Australian smelt, western carp gudgeon, fly-specked hardyhead and crimson-spotted rainbowfish accumulated downstream of Balranald Weir. In addition, downstream accumulations of juveniles of larger-bodied species such as bony herring, common carp and goldfish were also detected. Although many previous studies had either documented or hypothesised that upstream migrating fish accumulate downstream of migration barriers, none attempted to quantify the size of such populations. Therefore, a simple but efficient method to estimate the size of migratory populations was assessed at the Balranald Weir site. The application of two commonly used estimation techniques yielded relatively reliable results for seven species that accumulated downstream of the weir. Population size estimates were greatest for most species during summer and autumn, where accumulations as high as 800 fish per day were detected. The largest calculated population size estimates, in addition to the
greatest temporal variation, of any individual species was observed in bony herring. Given the simplicity of the technique and the relative accuracy of population estimates, it was concluded that these methods could easily be applied to other weirs where the size of migratory populations is of particular interest. A study investigating the effects of Yanco Weir on the diets of three migratory percichthyid species, Murray cod, trout cod and golden perch was also conducted. Observed spatial variation in a number of trophic processes strongly implicated Yanco Weir as a major contributor to increased competition among percichthyid species on the Murrumbidgee River. The greater relative abundance of percichthyids from downstream samples, combined with increases in dietary overlap and a greater percentage of empty stomachs, also suggested percichthyids may be significantly affecting the relative abundance of potential prey items such as freshwater prawns and Australian smelt. These significant changes in dietary composition were likely related to migratory behaviour, as these species accumulated downstream of the weir, and could be readily expected at other sites where passage is obstructed. It was suggested that the construction of suitable fish passage facilities would effectively reduce the probability of migratory fish accumulating and, subsequently, potential effects of dams and weirs on trophic processes. Since it was established that dams and weirs of the Murrumbidgee River were significantly affecting migratory fish communities, an innovative but relatively inexpensive fishway design, the Deelder fish lock (after Deelder, 1958), was constructed and assessed for wider application throughout the Murray-Darling Basin. The Deelder lock was effective at mitigating the effects of Balranald Weir by providing passage for a wide range of size classes and species of fish; but importantly, the structure enabled the passage of most species previously observed to accumulate downstream of the structure. Most significant was the ability of the fish lock to pass substantial numbers of small-bodied fish, which were previously not considered migratory, suggesting that these species should be considered when developing options to mitigate the effects of other dams and weirs throughout the Murray-Darling Basin. A significant finding of this study was the realisation that substantially more species and size classes of Australian native fish are migratory than previously thought.
Subsequently, it is recommended that, when designing facilities to mitigate the effects of a dam or weir, the structure of the entire migratory community is considered when developing operating parameters. Various options for mitigating the effects of dams and weirs are discussed, but it was concluded that the construction of effective fishways would be the most appropriate means of restoring migration pathways to Australian native fish. A strategic approach for assessing and adaptively mitigating the effects of dams and weirs is presented and discussed.
20
Spencer, Ricky-John. "The Murray River Turtle, Emydura macquarii: Population Dynamics, Nesting Ecology and Impact of the Introduced Red Fox, Vulpes vulpes." University of Sydney. Biological Sciences, 2001. http://hdl.handle.net/2123/373.
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I studied aspects of the ecology of the Murray River turtle, Emydura macquarii, to determine the impact of the introduced red fox, Vulpes vulpes. The fox is one of Australia's worst vertebrate pests through its predation on livestock and native mammals, but their impact on reptilian communities is not known. I conducted a large-scale mark-recapture study to evaluate population growth of E. macquarii in the Albury region of the upper Murray River by determining growth, reproduction and survival. The study was conducted downstream of the first, and largest, impoundment on the Murray River, Lake Hume. Emydura macquarii predominantly inhabit the lagoons in the upper Murray River, as the mainstream and Lake are possibly too cool to maintain metabolic processes. They are easily captured in hoop traps and the use of live decoys maximises trap success. Over 2000 hatchling turtles were marked and released into two lagoons between January 1997 and January 1998. Growth of these individuals is rapid over the first few years but declines towards maturity, and is indeterminate after maturity. Although growth annuli are not well defined, even on young individuals, the von Bertalanffy model describes the growth of both male and female E. macquarii. Male turtles mature at 5-6 years and females mature at 10-12 years. Female turtles may maximise reproductive potential by delaying maturity and producing one relatively large clutch (mean = 21 eggs) per year, which is positively correlated with body size (PL). Although primarily related to body size, clutch size varies annually because of environmental conditions. If winter and summer rainfalls are below average and temperatures are above average, E. macquarii may reduce clutch size to increase the chance of the eggs surviving. Nesting predominantly occurs during the first major rain-bearing depression in November. Habitat variables, including distance from water, nearest nest, and tree, and soil type were measured for each nest to determine characteristics that attract predators. Nests close to the shoreline and trees are heavily preyed on, and nests constructed in sand are less likely to be destroyed by predators. Foxes detect nests through a combination of chemical cues from eggs and slight soil disturbances, whereas birds only destroy nests observed being constructed during the day. Female turtles alter nesting behaviour and construct nests much further away from water when foxes were removed and as a result, nests are less dense and away from trees. Thus in high predation risk areas, turtles minimise emergence and search times to reduce the risk of direct predation by foxes. Predation is reduced when nests are in lower densities and away from trees, because predators increase search efforts when nests are in higher densities and birds are more likely to destroy nests close to trees. Reproductive success is further reduced in high predation risk areas because more nests are constructed in sandy substrates where clutch success is reduced compared to incubation in more dense substrates. Where predators are a significant source of mortality, prey may use indirect methods, such as chemical recognition, to avoid encounters. Nesting turtles did not avoid areas where fox odour was present, suggesting that they assess predation pressure from foxes by other mechanisms, such as visual recognition. However, an innate response occurs to the odour of a once common predator on the Murray River, the eastern quoll (Dasyurus viverrinus), whereby turtles recognise and avoid nesting in areas where quoll odour is present. Therefore nesting turtles show a similar avoidance response to two different predators, using different mechanisms of detection. Similarly, predation risk may influence hatching times and nest emergence. The rate of embryonic development of E. macquarii may increase or eggs may hatch early so that the clutch hatches synchronously, thereby reducing the risk of predation through group emergence from the nest. Emydura macquarii reach densities of over 100 turtles.ha-1, with the majority of the population consisting of sexually mature individuals. Emydura macquarii has a Type III survival curve where mortality is extremely high in the egg stage (93% nest predation), remaining high over the hatchling stage (minimum survival rate- 10%), but decreasing rapidly throughout the juvenile stage (~70% juvenile survival). Adult survival is extremely high, with greater than 95% of adults surviving each year. Foxes through nest predation cause most mortality but a small proportion (~3%) of nesting adult females are killed by foxes each year. A removal program evaluated the impact of foxes. In 1996, fox numbers were monitored around four lagoons by spotlighting and non-toxic bait uptake. Foxes were removed from around two of the lagoons throughout 1997 and 1998, using spotlight shooting and 1080 bait poisoning. Fox numbers were continually monitored around all four lagoons during the study. Nest predation rates remained around 90% in all sites where foxes were present, but fell to less than 50% when foxes were removed. At the same time, predation on nesting female turtles was eliminated where foxes were removed. Demographic models using staged based survival schedules, together with growth and fecundity values for E. macquarii show a decline of 4% per year in these populations. Elasticity analyses shows that survival of adult female E. macquarii has the major influence on population stability and a reduction of nest predation alone is unlikely to address the population decline. Management options, such as reducing foxes prior to nesting around key lagoons, will stabilise the population decline, and eliminating foxes completely from certain areas with high dispersal potential, will promote recruitment of juvenile E. macquarii.
21
Dwyer, Brian James. "Aspects of governance and public participation in remediation of the Murray-Darling Basin /." View thesis, 2004. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20060517.130206/index.html.
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Thesis (Ph.D.) -- University of Western Sydney, 2004.<br>"A thesis submitted for the degree of Doctor of Philosophy of the University of Western Sydney, Sydney, January 2004." Includes bibliography : leaves 359 - 369.
22
Peterson, Kylie, and n/a. "Environmental impacts on spawning and survival of fish larvae and juveniles in an upland river system of the Murray-Darling Basin." University of Canberra. Resource, Environmental & Heritage Sciences, 2003. http://erl.canberra.edu.au./public/adt-AUC20060713.121419.
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Six rivers within the upper Mumbidgee catchment were sampled for larval and juvenile
fish. The rivers represented both regulated and unregulated flow regimes and varied widely in
size. There was wide variation in the larval fish communities supported by each river, both in
terms of the species diversity and total abundance of fish sampled. The highly regulated reach
of the Mumbidgee River sampled during this study had the highest numbers of native
species and native individuals of any river sampled.
In the two rivers selected for further study, the Murmmbidgee and Goodradigbee, there was a
high level of inter-annual consistency in the species composition within the reaches sampled,
despite considerable change in the temperature and flow regimes of both rivers. This indicates
that at least some spawning of those species sampled may occur each year, regardless of
environmental conditions. Estimates of the relative abundance of each species sampled
changed markedly between years, and it is argued, on the basis of growth information
contained in the otoliths, that differential survival of larvae and juveniles was largely
responsible for this shift in relative abundance.
Otolith microstructure provided information on the date of spawning and early growth patterns
of all species sampled in the upper Mumumbidgee catchment. In addition to determining the
age and thus 'birth-date' of an individual, the effect of a particular event or series of events has
on growth, and subsequent survival, is permanently recorded in the otolith microstructure.
This enables accurate back-calculation and correlation to management actions or natural
events. No other research tool has this ability to retrospectively assess, on a daily basis, the
impacts of management actions on condition and subsequent survival of fish larvae.
Species sampled could be separated into three groups based on spawning requirements; those
linked with flow, those linked with temperature and generalist species that appear to have river
independent cues, such as photoperiod or moon phase.
Patterns in growth rate during the early life history stages enabled quantification of the
consequences of variation in environmental conditions on the survival and recruitment of
various species. Growth was not always highly correlated with water temperature, in fact, for
mountain galaxias, high temperatures appear to negatively affect larval condition and
subsequent survival. Conversely, carp exhibited a strategy more consistent with common
perceptions, with growth and survival increasing with increasing temperature.
The study uncovered spawning and growth patterns that were unexpected. Age analysis of
western carp gudgeon demonstrated that they had undertaken a mid-winter spawning, when
the water temperature in the main channel was far lower than that at which spawning was
previously recorded for this species. Redfin perch from the unregulated Goodradigbee River
exhibited growth rates exceeding the published upper limits for this and other closely related
species. This growth could not be correlated with either temperature or flow, indicating that
there are additional factors that dominate growth rates of redfin perch in the Goodradigbee
River.
The proportion and abundance of native species alone is not necessarily indicative of a
'healthy' or pristine system; some native species may be positively affected by river
regulation, at least as juveniles. Comparison of the current larval fish community with likely
pre-European fish communities does provide an indication of change to the system. The
results of this study suggest that larval fish growth rates can be strongly influenced by
environmental conditions, thus providing a powerful tool for monitoring future change and the
factors which cause it.
This study has demonstrated the value of larval and juvenile fish age and growth information,
derived from otolith microstructure techniques, for many aspects of river management.
Current river management priorities for which these techniques provide unique information
include the determination of environmental flow regimes and the control of undesirable exotic
species such as carp.
23
Syaifullah, of Western Sydney Hawkesbury University, and Faculty of Science and Technology. "Genetic variation and population structure within the Gudgeon genus Hypseleotris (Pisces-Eleotridae) in Southeastern Australia." THESIS_FST_XXX_Syaifullah_X.xml, 1999. http://handle.uws.edu.au:8081/1959.7/231.
Full textAbstract:
This study investigated the causes of high level of intra-and inter-population variation known to occur in the morphology of fish in the genus Hypseleotris Eleotride in southern Australia, particularly within the Murray-Darling river system. The three major objectives of the study were, identify the number and distribution of species,determine the genetic structure of the populations and analyse relationships between species and consider the process of speciation in this species complex. The investigation of morphological variation in Hypseleotris confirmed the presence of two well known species i.e. H. compressa and H. galli, in the coastal rivers and also of the inland species H. klunzingeri. Populations of Hypseleotris klunzigeri sensu lato in inland river were found to be very highly variable and analysis using discriminant functions and principle component analysis showed the widespread presence of three forms (A, B1 and B2). The analysis was confused by the presence of north/south clines and upstream/downstream variation in characteristic in each form. After these factors were removed, there was still a great deal of variation in each population. The presence of hybrids between each pair of inland species, identified by both morphological and genetic data, further confused the analysis and makes identification of all specimens to species in the field difficult. Examination of type material of H. Klunzingeri showed that this belonged to form B2. The other forms can be related to the undescribed species, Midgley's carp gudgeon and Lake's carp gudgeon. Keys to the species in the complex in southeastern Australia are given. The morphological and genetic data show that H. compressa and H. klunzingeri are sister species, primarily separated by the eastern uplands. Similarly, the coastal species, H. galli is related to form B1 and more distantly, to form A. Possible scenarios for the complex are given.<br>Doctor of Philosophy (PhD)
24
Spriggs, Shelley. "Participatory decision making : new democracy or new delirium? /." [Richmond, N.S.W.] : Faculty of Environmental Management & Agriculture, University of Western Sydney, Hawkesbury, 1999. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030505.110740/index.html.
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Puckridge, James Terence. "The life history of a gizzard shad, the bony bream, Nematalosa erebi (Gunther) (Dorosomatinae, Teleosti) in the lower River Murray, South Australia." Title page, contents and summary only, 1988. http://web4.library.adelaide.edu.au/theses/09SM/09smp977.pdf.
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Bowen, Patricia Margaret. "Modelling microbial utilisation of macrophyte organic matter inputs to rivers under different flow conditions /." full text available on ADT, 2006. http://erl.canberra.edu.au/public/adt-AUC20070802.104452/index.html.
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Thesis (PhD) - University of Canberra.<br>"March 2006" Submitted in accordance with assessment requirements for the Doctor of Philosophy degree of the University of Canberra. Bibliography: p. 228 - 250.
27
Clerke, Robert Bruce. "The ecology of the cane toad, Bufo marinus, on the Darling Downs of Southern Queensland and the prospects of further range expansion within the Murray-Darling River Catchment." Thesis, Queensland University of Technology, 1995.
Find full text
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Khalil, Kamal. "Water surface profile modelling for Pinjarra flood diversion channel and economic evaluation." Thesis, Curtin University, 2007. http://hdl.handle.net/20.500.11937/2455.
Full textAbstract:
Shire of Murray has concerns regarding the negative impact that a 100 year flood could have on existing structures built before 1997. The increase cost in construction due to landfill has an adverse effect on development in Pinjarra. Feasibility of constructing a diversion channel at upstream of Murray River to attenuate the flood level from 1 in 100 year ARI to 1 in 50 year ARI, was investigated by Kiong (2003). The Murray River Water Surface Profile along three kilometres south of Greenlands Road was modelled. Flood damages on each flood occurrence were assessed and Average Annual Damage (AAD) was calculated. The AAD is used to estimate the monetary benefit against the construction cost of the diversion channel. Groundwater along Greenlands and Fauntleroy Drains was also modelled to determine the viable depth of the designed channel, as well as the analysis of backwater. The proposed channel is designed at different scenarios (invert level at breakout point, culvert or causeway design, and diversion channel variations). The benefit cost ratio of the proposed diversion channel is calculated. Other mitigation options are suggested including detention basins for structural measure, or building a new flood-proof township for non-structural measure.
29
Khalil, Kamal. "Water surface profile modelling for Pinjarra flood diversion channel and economic evaluation." Curtin University of Technology, Department of Civil Engineering, 2007. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=17589.
Full textAbstract:
Shire of Murray has concerns regarding the negative impact that a 100 year flood could have on existing structures built before 1997. The increase cost in construction due to landfill has an adverse effect on development in Pinjarra. Feasibility of constructing a diversion channel at upstream of Murray River to attenuate the flood level from 1 in 100 year ARI to 1 in 50 year ARI, was investigated by Kiong (2003). The Murray River Water Surface Profile along three kilometres south of Greenlands Road was modelled. Flood damages on each flood occurrence were assessed and Average Annual Damage (AAD) was calculated. The AAD is used to estimate the monetary benefit against the construction cost of the diversion channel. Groundwater along Greenlands and Fauntleroy Drains was also modelled to determine the viable depth of the designed channel, as well as the analysis of backwater. The proposed channel is designed at different scenarios (invert level at breakout point, culvert or causeway design, and diversion channel variations). The benefit cost ratio of the proposed diversion channel is calculated. Other mitigation options are suggested including detention basins for structural measure, or building a new flood-proof township for non-structural measure.
30
Dwyer, Brian James, University of Western Sydney, College of Social and Health Sciences, and School of Natural Sciences. "Aspects of governance and public participation in remediation of the Murray-Darling Basin." THESIS_CSHS_NS_Dwyer_B.xml, 2004. http://handle.uws.edu.au:8081/1959.7/776.
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This thesis addresses the question “What is the essence of the Murray Darling river system conundrum that is usually posed as an issue of environmental remediation?”- following perceptions of problems in catchment strategy formulation regarding project selection and public consultation. The question is initially seen as having four facets – governance, public, participation and remediation. An initial literature review indicated that previous examination of these topics seemed insufficiently radical or comprehensive for the enquiry’s purposes, seeming not to attribute full humanness to members of the public. A fieldwork program of quasi-anthropological nature was conducted. Interpretation of the fieldwork reports focuses primarily on the lack of attribution of full humanness to members of the public. Interpretive techniques including a phenomenological-style process was applied and found that the district houses a number of unrecognised people “nexors’ occupying linking or nexus roles who exercise personal skills and initiatives to underpin effective remediation outcomes. Towards the end of the fieldwork program, further literature indicated that the initial four-facet nature of the enquiry should be reformulated, to include the overall nature of western society as it appears in the district (in place of participation), to reconstitute the concept of remediation more radically. Governance as a topic is broader than the ways in which it appears in the examined district, and suitable hybridizing of competing world view concepts remains unresolved in this thesis<br>Doctor of Philosophy (PhD)
31
King, Alison Jane 1974. "Recruitment ecology of fish in floodplain rivers of the southern Murray-Darling Basin, Australia." Monash University, Dept. of Biological Sciences, 2002. http://arrow.monash.edu.au/hdl/1959.1/8391.
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McQuain, Kelly. "Cheat River." ScholarWorks@UNO, 2007. http://scholarworks.uno.edu/td/1065.
Full textAbstract:
Cheat River is a novel about balancing family obligations against self-preservation. That is what's at stake for Allison and Andrew McKenna, a pair of siblings in rural Appalachia who must endure their father's abandonment and their pregnant mother's breakdown. At first, the two find solace from their parents' problems on the banks of the river from which the novel takes its name. But eventually, Andrew's homosexual feelings drive him to the bohemian streets of Philadelphia in the early '90s where he falls in with political activists and a household of misfits. He disappears, and Allison comes to the city to look for him. By retracing her brother's life, she realizes not only what he meant to her but what it will take to survive on her own.
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Judge, David, and n/a. "The Ecology of the polytopic freshwater turtle species, Emydura macquarii macquarii." University of Canberra. Resource, Environmental and Heritage Sciences, 2001. http://erl.canberra.edu.au./public/adt-AUC20050418.151350.
Full textAbstract:
An ecological study of Emydura macquarii macquarii in the south-east region
of Australia was conducted between October 1995 and March 1998. E. m. macquarii is
an abundant and widespread species of short-necked turtle that is highly variable in
morphology and related life history attributes. No study in Australia had previously
looked at geographic variation in biological traits in freshwater turtles, hence the level
of variation in E. m. macquarii had been poorly documented. The principal aims of this
study were to investigate the plasticity of life history traits across populations of E. m.
macquarii and to speculate on possible causes. A more intensive study was also
conducted on a rare and suspected declining population of E. m. macquarii in the
Nepean River to determine whether relevant management and conservation measures;
were required.
The study involved comparing various life history attributes between five
populations of E. m. macquarii (Brisbane River, Macleay River, Hunter River, Nepean
River and Murray River). The populations were specifically chosen to account for the
range of variation in body size within this subspecies. Body size (maximum size, size at
maturity, growth rates), population structures (sex ratios, age and size structures),
reproductive traits (clutch mass, clutch size, egg size, egg content, etc.) and other
attributes were collected for each population. Patterns of life history traits, both within
and among populations, were explored so that causes of variation could be sought.
Geographic variation in Body Size and other Related Life History Traits
Body size in E. m. macquarii differed markedly between populations. Females
ranged in maximum sizes (carapace length) of 180 mm in the Macleay River to over
300 mm in the Murray River. E. m. macquarii was sexually dimorphic across all
populations with females larger than males in all cases. Maximum body size was
positively related to the size at which a turtle matures. The size at maturity in turn was
positively related to juvenile growth rates. Age was a more important factor for males
in terms of timing of maturity whereas in females it was body size. Morphological
variation was not only great between populations, but also within populations.
Maximum body size was unrelated to latitude; hence it was inferred that habitat
productivity had the most important influence on geographic variation in body size.
Population structures also differed between populations. Sex ratios did not differ in the
Brisbane, Macleay and Murray Rivers. However, a male bias was present in the Nepean
River population and a female bias in the Hunter River. Juveniles were scarce in the
Brisbane and Macleay Rivers but numerous in the Nepean and Hunter Rivers.
Geographic Variation in Reproduction
There was large variation in reproductive traits across populations of E. m.
macquarii. Nesting season began as early as mid-September in the Brisbane River and
as late as December in the Hunter River, and continued until early January. Populations
in the Hunter and Murray Rivers are likely to produce only one clutch per season while
populations from the Macleay and Nepean Rivers can produce two, and on some
occasions, three clutches annually. The majority of females would appear to reproduce
every year.
Clutch mass, clutch size, and egg size varied greatly both within and among
populations. A large proportion of variation in reproductive traits was due to the effects
of body size. E. m. macquarii from large-bodied populations such as in the Brisbane
and Murray Rivers produced bigger eggs than small-bodied populations. Within a
population, clutch mass, clutch size, and egg size were all correlated with body size,
except the Nepean River. The variability of egg size was smaller in large-bodied
populations where egg size was more constant.
Not all variation in reproductive traits was due to body size. Some of this
variation was due to annual differences within a population. Reproductive traits within
a population are relatively plastic, most likely a result of changing environmental
conditions. Another source is the trade-off between egg size and clutch size. A negative
relationship was found between egg size and clutch size (except the Brisbane River).
Reproductive variation was also influenced by latitudinal effects. Turtles at lower
latitudes produces more clutches, relatively smaller clutch sizes, clutch mass and larger
eggs than populations at higher latitudes. Annual reproductive output is greater in
tropical populations because they can produce more clutches per year in an extended
breeding season.
Eggs that were incubated at warmer temperatures hatched faster and produced
smaller hatchlings. Incubation temperatures above 30�C increased egg mortality and
hatchling deformities, suggesting this is above the optimum developmental temperature
for E. m. macquarii. Hatchling size was positively related to egg size, hence hatchling
sizes was on average larger in the Murray and Brisbane rivers. However, population
differences remained in hatchling size after adjustments were made for egg size. For
example, hatchlings from the Hunter River were smaller than those from the Macleay
River despite the egg size being the same. These differences were most likely due to the
shorter incubation periods of hatchlings from the Hunter River.
Nepean River
The Nepean River population of E. m. macquarii is at the southern coastal limit
of its range. This is a locally rare population, which is believed to be declining. This
study aimed at determining the distribution, abundance, and population dynamics to
assess whether any conservation management actions were required. E. m. macquarii in
the Nepean River was mainly concentrated between Penrith and Nortons Basin,
although even here it was found at a very low density (10.6 - 12.1 per hectare). The
largest male caught was 227 mm while the largest female was 260.4 mm. Males
generally mature between 140 - 150 mm in carapace length and at four or five years of
age. Females mature at 185 -195 mm and at six to seven years of age.
Compared with other populations of E. macquarii, Nepean River turtles grow
rapidly, mature quickly, are dominated by juveniles, have a male bias and have a high
reproductive output. Far from being a population on the decline, the life history traits
suggest a population that is young and expanding. There are considered to be two
possible scenarios as to why the Nepean River population is at such a low density when it appears to be thriving. The first scenario is that the distribution of the population on
the edge of its range may mean that a small and fluctuating population size may be a
natural feature due to sub-optimal environmental conditions. A second scenario is that
the population in the Nepean River has only recently become established from dumped
pet turtles.
34
Reses, Lucymar Therezinha de Gesat. "Escavando ficções sob o mural de Diego Rivera." Florianópolis, SC, 2005. http://repositorio.ufsc.br/handle/123456789/101828.
Full textAbstract:
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em Literatura<br>Made available in DSpace on 2013-07-15T23:19:03Z (GMT). No. of bitstreams: 0<br>O presente estudo busca fazer uma leitura benjaminiana à contra-corrente dos murais de Diego Rivera e de sua própria imagem pública, ao desenterrar questões menos conhecidas tanto sobre ele próprio como imagem, e suas mulheres, como também sobre o México e sua revolução em potencial. Para isso, busca-se aqui trazer à tona o que subjaz à superfície da memória: uma revolução e uma correspondência (Querido Diego te abraza Quiela) ficcionais, como contrapartes do que se reconhece nos murais de Rivera. As questões que se levantam, pois, como aquilo que não se pode ver nos murais, compõem uma constelação de aspectos interrelacionados como um contra-mural.
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Santiago, Maycom Pinho. "México mural : Rivera, Siqueiros e Orozco em perspectiva decolonial." reponame:Repositório Institucional da UnB, 2018. http://repositorio.unb.br/handle/10482/32521.
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Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Sociais, Departamento de Estudos Latino-Americanos, Programa de Pós-Graduação em Estudos Comparados Sobre as Américas, 2018.<br>Submitted by Raquel Viana (raquelviana@bce.unb.br) on 2018-08-22T21:39:21Z
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Previous issue date: 2018-08-22<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES).<br>Este é um estudo sobre o movimento muralista mexicano em diálogo com a perspectiva decolonial. São analisados os trabalhos de Diego Rivera, José Clemente Orozco e David Alfaro Siqueiros, respectivamente, a partir dos murais Historia de Morelos, Conquista y Revolución (1930); La Conquista Española de México (1939) e Cuauhtémoc Contra el Mito (1944). A partir de uma abordagem comparativa entre os três pintores proponho uma discussão sobre a possibilidade de o discurso estético do muralismo mexicano guardar pontos de interseção com os pressupostos da perspectiva decolonial.<br>This is a study of the Mexican muralist movement in dialogue with decolonial perspective. The works of Diego Rivera, José Clemente Orozco and David Alfaro Siqueiros, respectively, from the murals Historia de Morelos, Conquista y Revolución (1930); La Conquista Española de México (1939) e Cuauhtémoc Contra el Mito (1944). From a comparative approach between the three painters, this work proposes a discussion about the possibility of discourse esthetic of Mexican muralism to establish points of intersection with the assumptions from a decolonial perspective.
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Morris, Colleen, and ms_colleen_morris@hotmail com. "Water paths and the landscape: poetry of water paths watercourses waterways and rivers - fluid links between artists, ecology and the environment." RMIT University. Art, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080702.144923.
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My project is a tribute to all water paths, waterways and rivers. It is an acknowledgement of their global significance, and of their mysterious and mythic presence in legend and history. The main body of the research and studio practice focuses on the Murray-Darling River System. Contained within the research there is a store of personal knowledge and memories of a complex river network. I view this research as my personal tribute. Some of the most important environmental challenges currently faced by us as a community in the twenty first century are water quality and water usage. By understanding and integrating people's needs, and ensuring that the communities in the Basin are able to engage in the process of change, a sense of identity can be fostered, so that long - term sustainability becomes a shared goal. Salinity, algal blooms, trading water property rights, and establishing a balance between the needs of the environment and the needs of the communities in the consumption of water are some of the strategies that are planned under the Murray - Darling Basin Initiative. For my exploration into the environment, ecology and poetry of water paths, I have researched and will discuss the work of a number of contemporary visual artists, and quoted from works of both writers and poets, to further illustrate aspects of a water path and landscape environment. My selection is primarily governed by artworks that specifically reference the human traces that mark or imprint on the landscape, water paths in the riverine landscape and the linked ecology. By reflecting on the broader position of water, its usage and control, it can be seen how this factor relates to the health of our ecological environment, and the most likely impact water usage and control will have in the future. Through both studio research and exegesis, I encapsulate a key part of childhood memory and significance of place, and established a sense of its importance within my integral identity. Simultaneo usly, the research explores the duality of this river environment and its atmospheric moods. I encompass the meditative qualities and beauty of this specific river environment, and include some investigation of social and ecological factors related to the presence and usage of water in the Murray - Darling Basin.
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Reyes, Martínez Víctor Manuel. "La crítica a la obra mural de Diego Rivera 1921-1923 a través de la prensa." Tesis de Licenciatura, UNIVERSIDAD AUTÓNOMA DEL ESTADO DE MÉXICO, 2017. http://hdl.handle.net/20.500.11799/67230.
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Espinosa, Cabrera Rubén. "Presencia de arquetipos “mexicanos” en la pintura mural de Diego Rivera. El mural del palacio nacional (1922–1935)." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/457426.
Full textAbstract:
La tesis “Presencia de arquetipos «mexicanos» en la pintura mural de Diego Rivera”, expone cómo el pintor concibió la idea de pintar a México, transfigurándola en proyecto para una pintura mural de la escalera del Palacio Nacional, en donde representarála historia de los mexicanos.Al final de su aventura vanguardista de Montparnasse y retornado a México, Diego ha tomado la decisión de romper con la pintura burguesa, a la que ha identificado con la pintura de las academias y con el “arte puro”; posición que le lleva a encaminar sus pinceles ysus colores, hacia las técnicas del primitivismo italiano, el arte precolombino y el arte popular. Combinación que el pintor sintetiza en el concepto plástico pictórico que describe como “arte útil” o arte del pueblo y para el pueblo o arte revolucionario. Un realismo social que deviene en el más popular e internacionalmente conocido Muralismo Mexicano.Encaminado en las técnicas de la encáustica y del fresco, acepta la invitación de las nuevas autoridades culturales que le permiten hacer uso de las paredes de edificios públicos, para “decorarlas” con motivos mexicanos. A contrapelo de un arteacadémico y complaciente, y luego de pintar alegorías medio bizantinas que aún conservan rasgoscubistas, el pintor decide explorar los tipos del pueblo mexicano, los cuales van a ser directamente seleccionados de todos los puntos cardinales del país mexicano, escenas del trabajo, de la fiesta y de la lucha del pueblo.Diego va fraguando y abocetando una pintura para las paredes del cubo de la escalera del Palacio Nacional, lo cual lo lleva a desplazar sus tipos de trabajadores del pueblo mexicano, a un gran escenario en el cual ha decidido representarlo, no sólo en la cotidianidad, sino ahora también en la gesta histórica que lo conducirá a su liberación final.Es en los muros de un edificio que para los mexicanos simboliza el máximo poder, en donde Diego Rivera, autonombrado pintor revolucionario, decide acomodar su visión particular del patriotismomexicano. Mediante la representación de un gran escenario, que tiene mucho de teatral, Diego reúne una multitud de figuras, muchas de las cualeseran del dominio común de cien años del imaginario de héroes y contra héroes de la historia nacional. Desde la mítica figura del sabio Quetzalcóatl,hasta las figuras de burgueses codiciosos y de eclesiásticos y políticos corruptos, “la trinidad reaccionaria”. Pero ahora, el pintor, ha decidido incrustar en la gran galería a la nueva figura heroica del pueblo, los indios, los campesinos y los obreros mexicanos, a los cuales intenta representar como hombres y mujeres decididos a tomar las riendas de su historia. Un pueblorepresentado como “trinidad revolucionaria” que ya no cabe en los marcos de un mundo burgués y corrupto, y que ahora se reconoce en la figura redentora de Marx–Quetzalcóatl. Por lo tanto, la figura de una historia que el pintor está convencido que es revolucionaria y que él ha pintado en elmuro público del poder corrupto, en un especie de desafío de un arte revolucionario.El gran escenario del mural y sus figuras, se transforman en imágenes que en arremolinada combinación, se van a convertir en los arquetipos “mexicanos”,complejo histórico y antropológico que nosotros hemos queridoanalizar a lo largo de los capítulos de esta tesis.<br>The thesis “Presence of Mexican Archetypesin the Mural Painting of Diego Rivera” shows how the painter conceived the idea of painting Mexico’s and the Mexican people’s History, transforming it into a project of amural painting on the staircase of Palacio Nacional. At the end of his vanguardist adventure in Montparnasse, and back in his country, Diego arrived to the decision of breaking up with bourgeois painting, the painting of the Academy and of “Pure Art”. This posture took him, his brushes and his palette, to the techniques of Italian Primitivism, Precolumbian Art and Folk Art. This combination was termed by the painter himself as “Useful Art”, art for the people by the people, or Revolutionary Art. This Social Realism became internationally known andpopularized as “Muralismo mexicano”. Keen on the techniques of al fresco painting and encaustic, he readily accepted the invitations of the new cultural authorities to use the walls of public buildings, to embellish them with Mexican motifs. Going against the grain, far from academic and complacent forms, after painting byzantine allegories that still show some cubist elements, the painter decides to explore the “types” of the Mexican people, types that will be selected from all the corners of the land. Scenes from labouring, from celebration and the struggle of the people. Diego will make the first drafts for the walls of the stairwell of Palacio Nacional and he will take his “types” to a greater stage, where they will be portrayed not only in daily life, but also in the greatest battle, the one that finally would lead them to freedom. It is there, in the walls of a building that for Mexicans is the ultimate seat of power, where Diego Rivera, self-proclaimed “revolutionary painter” decides to capture his personal vision of the patriotic Mexican ideal. In this enormous stage, with its theatrical qualities, Diego gathers a multitude of shapes, many of them a part of a common heritage, part of a hundred years of imagining heroes and villains of national History. From the mythical figure of wise Quetzalcoatl to the figures of greedy bourgeoisies, power hungry priests and corrupt politicians, the “Reactionary Trinity”. But now the painter has decided to frame the heroic figures of the people, the Indians, the peasants, the Mexican workers, portrayed as men and women ready to hold the reins of History. A people represented by the “Revolutionary Trinity”, which the frames of a bourgeois and corrupt world can’t contain that recognizes itself in the saviour Marx-Quetzalcoatl. It is thus that in the portrayal of this History that he conceives as Revolutionary, and that has been created on the walls of a public building, in the very seat of corrupt power, that Rivera manifests his defiance, his revolutionary stance.
In this great stage, the mural and its figures will be transformed in images that swirl in a whirlwind of combinations. These will become the Mexican Archetypes, an anthropological and historical complex that we have tried to analyse in the chapters of the thesis that follows.
39
Barros, Antônio Leandro Gomes de Souza. "Chapingo: Capela." Universidade do Estado do Rio de Janeiro, 2011. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=3316.
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Essa dissertação é uma proposta de releitura do conjunto de murais no interior da Capela de Chapingo, México. Tal releitura de crítica artística relaciona-se à apropriação de uma metodologia derivada da própria noção de capela, metodologia essa que compactua com o ambiente artístico em questão e com a fenomenologia do contemplador desse conjunto. O objetivo dessa proposta é apresentar as nuances envolvidas no conceito-chave, por parte da historiografia artístico-religiosa, de suporte-capela, isto é, a capela não apenas como ambiente religioso, mas como ocasião artística<br>This paper is a re-reading proposal for the set murals inside the Chapingos Chapel, Mexico. Such critice of art are related to appropiation of a methodology derived from the own notion of chapel. The objetive of this proposal and methodology is to present the details involved in the key-concept of support-chapel not only as a religius espace, but as artistic medium too
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JACOB, J. F. "Os filhos de Malinche: As representações sobre os indígenas na ótica de Diego Rivera (1920-1940)." Universidade Federal do Espírito Santo, 2014. http://repositorio.ufes.br/handle/10/3517.
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Previous issue date: 2014-08-15<br>Neste trabalho analisamos as representações sobre os indígenas produzidas por Diego Rivera enquanto pintor muralista. O movimento de pintura mural fez parte das políticas do Estado pós-revolucionário para construção de uma nação moderna nos parâmetros ocidentais. O grande problema era incluir neste ideal nacionalista os grupos distintos que participaram do processo revolucionário, entre eles, as numerosas populações indígenas excluídas, social, econômica e culturalmente da sociedade Mexicana. Com base nas perspectivas antropológicas formulou-se o indigenismo, política sistemática e unilateral dirigida aos indígenas com o intuito de mexicanizá-los. Este projeto tinha como objetivo central a defesa da verdadeira e única identidade mexicana, a mestiça, no sentido de mescla entre a cultura ocidental e indígena. Dentro desse contexto, inicia-se oficialmente em 1922, o muralismo mexicano. Ele surge como elemento fundamental para divulgação de representações sobre o ser mexicano, e, portanto, essencial para legitimação simbólica do Estado nacional. Entretanto, assim como o próprio discurso indigenista institucional apresentou variações, já que seus intelectuais não falaram todos com uma só perspectiva, os muralistas não representaram o índio e a nação em termos únicos. Neste sentido, trabalharemos com escritos e pinturas murais dos anos de 1920 aos anos de 1940 produzidos por Diego Rivera. O intuito é entender como o pintor se apropriou dos discursos indigenistas da época e criou suas representações de indígenas e de nação.
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Molinari, Claire Marcella. "The environment, intergenerational equity & long-term investment." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:30dd270b-3f0f-4b8b-979e-904af5cb597b.
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This thesis brings together two responses to the question ‘how can the law extend the timeframe for environmentally relevant decision-making?’ The first response is drawn from the context of institutional investment, and addresses the timeframe and breadth of environmental considerations in pension fund investment decision-making. The second response is related to the context of public environmental decision-making by legislators, the judiciary, and administrators. Three themes underlie and bind the thesis: the challenges to decision-making posed by the particular temporal and spatial characteristics of environmental problems, the existence and effects of short-termism in a variety of contexts, and the legal notion of the trust as a means for analysing and addressing problems of a long-term or intergenerational nature. These themes are borne out in each of the four substantive chapters. Chapter III sets out to demonstrate the theoretical potential of pension funds to drive the reduction of firms’ environmental impact, and, focusing particularly on the notion of fiduciary duty, explores the barriers that stand in their way. Chapter IV provides a practical application of the theoretical recommendations outlined in its predecessor. It provides a framework outlining how pension funds might implement a longer term, more sustainable approach to investing. The second half of the thesis, operating in the context of public environmental decision-making, is centred upon a particularly poignant legal notion with respect to the environment and time: the concept of intergenerational equity. Just as the first half of the thesis deals with the timeframes relevant to investment decision-making by pension funds within the bounds of fiduciary duty, largely a private law affair with public implications, the second half of the thesis is concerned with the principle of intergenerational equity as a means for extending the decision-making timeframe of legislative, judicial and administrative decision-makers. As previous analyses of the concept of intergenerational equity provide little insight into its practical implications when applied to particular factual situation, Chapter V sets out the structure of the principle of intergenerational equity as revealed by case law. Chapter VI brings together the issues from the first three papers by conceptualising intergenerational equity in resource management as an issue of long-term investment. Long-term environmental decision-making faces many obstacles. Individual behavioural biases, short-term financial incentive structures, the myopic pressures of the electoral cycle and the tendency of the common law to reinforce the (often shorttermist) status quo all present significant barriers to the capacity of both private and public decision-makers to act in ways that favour the longer term interests of the environment. Nonetheless, this thesis argues that there is reason for hope: drawing upon the three themes that underlie all of the substantive Chapters, it articulates potential legislative changes and recommends the adoption of particular governance structures to overcome barriers to long-term environmental decision-making.
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Ligairi, Rachel Mae. "The Familiar Foreign Country: Reading Mexico in Cormac McCarthy, Jack Kerouac, and Katherine Anne Porter." BYU ScholarsArchive, 2006. https://scholarsarchive.byu.edu/etd/935.
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My thesis examines the discourse of Mexico in the works of three twentieth-century American authors-Cormac McCarthy, Jack Kerouac, and Katherine Anne Porter-in order to analyze representations of Otherness in modernism and postmodernism. I seek to destabilize the dividing line between these periods as well as to show how representation in postmodernity has become more problematic due in large part to the proliferation of consumer culture. Though the Mexico that McCarthy employs in Blood Meridian and the Border Trilogy (All the Pretty Horses, The Crossing, and Cities of the Plain) escapes many stereotypes, his Mexico is merely a staging ground that he uses to examine postmodern questions of philosophy while deconstructing myths such as the Old West and Manifest Destiny and reflecting on the ramifications of World War II. Therefore, McCarthy elides Mexico by using its Otherness as a mirror that enables reflection on the Self. Kerouac too is interested in using Mexico to solve U.S. problems. In On the Road, Kerouac's fictional counterpart, Sal Paradise, searches for the authenticity missing from middle-class American life by ultimately turning to the "authentic" Mexico. Though he is able to distinguish between simulations and reality in his own cultural context, once south of the border Sal misrecognizes what is a hypperreal Mexico for supreme authenticity. By contrast, when Katherine Anne Porter crosses the border, she is quick to identify corruption and revolutionary failure in Mexico. When pieces such as "Xochimilco" and "María Concepción" are placed alongside that of the work of Diego Rivera, a leader in the Mexican muralist movement, it becomes clear that Porter essentializes her Mexican subjects with the specific political goal in mind of furthering the revolution. Additionally, by crossing the generic lines separating fiction and non-fiction, Porter approximates what could be called a postmodern form of ethnography. Yet all of her representational strategies are tempered, especially in her last Mexican story, Hacienda, by an awareness that representations of Other cannot be other than flawed.
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Weir, Jessica Kate. "Murray River country : an ecological dialogue with traditional owners." Phd thesis, 2007. http://hdl.handle.net/1885/150474.
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Barrett, Brian Edward. "Water-borne geophysics for Murray River salt-load detection." Thesis, 2003. http://hdl.handle.net/2440/120737.
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Burton, C. M. (Christopher Mark). "Management of the River Murray during periods of extended drought." 1988. http://web4.library.adelaide.edu.au/theses/09ENS/09ensb974.pdf.
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Burton, C. M. "Management of the River Murray during periods of extended drought." Thesis, 1988. http://hdl.handle.net/2440/121992.
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Siebentritt, Mark Anthony. "The influence of water regime on the floristic composition of Lower River Murray wetlands / Mark Anthony Siebentritt." 2003. http://hdl.handle.net/2440/22028.
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"October 2003"<br>Errata inside front cover.<br>Bibliography: p. 289-313.<br>iii, 334 p. : ill., map, photo (col.) ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>This thesis examines the influence of 'water regime', or spatial and temporal patterns in the presence of water, on the floristic composition of wetlands on the River Murray in South Australia. It explores the hypothesis that the composition of wetland vegetation is determined by components of the water regime, namely depth, duration and the rate and timing of flood and drawdown.<br>Thesis (Ph.D.)--University of Adelaide, Cooperative Research Centre for Freshwater Ecology and School of Earth and Environmental Sciences, Discipline of Environmental Biology, 2004
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Siebentritt, Mark Anthony. "The influence of water regime on the floristic composition of Lower River Murray wetlands / Mark Anthony Siebentritt." Thesis, 2003. http://hdl.handle.net/2440/22028.
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"October 2003"<br>Errata inside front cover.<br>Bibliography: p. 289-313.<br>iii, 334 p. : ill., map, photo (col.) ; 30 cm.<br>This thesis examines the influence of 'water regime', or spatial and temporal patterns in the presence of water, on the floristic composition of wetlands on the River Murray in South Australia. It explores the hypothesis that the composition of wetland vegetation is determined by components of the water regime, namely depth, duration and the rate and timing of flood and drawdown.<br>Thesis (Ph.D.)--University of Adelaide, Cooperative Research Centre for Freshwater Ecology and School of Earth and Environmental Sciences, Discipline of Environmental Biology, 2004
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Blanch, Stuart James. "Influence of water regime on growth and resource allocation in aquatic macrophytes of the lower River Murray, Australia / by Stuart James Blanch." Thesis, 1997. http://hdl.handle.net/2440/19198.
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Addendum inserted.<br>Includes copies of author's previously published papers.<br>Bibliography: p. 390-414.<br>xvi, 420, [13] p. : ill., maps ; 30 cm.<br>Aims to examine the effects of water regime on growth, vegetative recruitment, resource allocation and photosynthesis in selected perennial species, and the adaptations permitting them to tolerate sub-optimal regimes.<br>Thesis (Ph.D.)--University of Adelaide, Depts. of Zoology and Botany, 1998?
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Srivastava, Sanjeev Kumar. "Predicting freshwater fish distribution in the Murray-Darling Basin." Phd thesis, 2005. http://hdl.handle.net/1885/150853.
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