Relevant bibliographies by topics / Hawkesbury region

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Academic literature on the topic 'Hawkesbury region'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

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Journal articles on the topic "Hawkesbury region"

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C. Chessman, Bruce, and Simon A. Williams. "Biodiversity and conservation of river macroinvertebrates on an expanding urban fringe: western Sydney, New South Wales, Australia." Pacific Conservation Biology 5, no. 1 (1999): 36. http://dx.doi.org/10.1071/pc990036.

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As in many growing urban areas, the prevention of environmental damage as Sydney spreads westward into the Hawkesbury-Nepean River basin is a major challenge for planners, managers and the local community, We surveyed macroinvertebrates at 45 river and stream sites in April-June 1996, and reviewed data from other sources, in order to assess the issues involved in conservation of the lotic macro invertebrate fauna, Regional richness is high with 443 recorded species and morphospecies, Cluster analysis showed community pattems related mainly to waterway size (separating the Hawkesbury-Nepean River from tributary streams), geology (tributaries on shale or sandstone), tidal intrusion and urbanization (impoverished faunas in urban streams). The ability of genus richness of mites and major insect orders to reflect overall genus richness at a site was limited, and Diptera and Trichoptera appear to have the greatest value as biodiversity predictors. Urban expansion is the major threat to lotic macro invertebrate communities in the region, but agriculture, flow regulation, sand and gravel ex1raction and introduced species have probably also impacted on the fauna, Streams with high conservation value for macroinvertebrates include those few on the Cumberland Plain and surrounding slopes that retain substantial indigenous vegetation in relatively undeveloped catchments. The Hawkesbury-Nepean River sfill harbours a rich faunal community and is also important for conservation, The development of effective strategies for conservation assessment and management is problematic for several reasons, Some species in the region are known to be vulnerable, but the status of most cannot be assessed because of a lack of taxonomic and zoogeographic information, Most "biodiversity indicator" concepts are of dubious value for aquatic macroinvertebrate conservation. A multi-faceted management approach emphasizing subcatchment reserves, riparian restoration and the control of threatening processes is required.
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Ribbat, Nina, Moninya Roughan, Brian Powell, Shivanesh Rao, and Colette Gabrielle Kerry. "Transport variability over the Hawkesbury Shelf (31.5–34.5°S) driven by the East Australian Current." PLOS ONE 15, no. 11 (November 5, 2020): e0241622. http://dx.doi.org/10.1371/journal.pone.0241622.

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The Hawkesbury Bioregion located off southeastern Australia (31.5–34.5oS) is a region of highly variable circulation. The region spans the typical separation point of the East Australian Current (EAC), the western boundary current that dominates the flow along the coast of SE Australia. It lies adjacent to a known ocean warming hotspot in the Tasman Sea, and is a region of high productivity. However, we have limited understanding of the circulation, temperature regimes and shelf transport in this region, and the drivers of variability. We configure a high resolution (750m) numerical model for the Hawkesbury Shelf region nested inside 2 data assimilating models of decreasing resolution, to obtain the best estimate of the shelf circulation and transport over a 2-yr period (2012–2013). Here we show that the transport is driven by the mesoscale EAC circulation that strengthens in summer and is related to the separation of the EAC jet from the coast. Transport estimates show strong offshore export is a maximum between 32-33oS. Median offshore transports range 2.5–8.4Sv seasonally and are a maximum during in summer driven by the separation of the EAC jet from the coast. The transport is more variable downstream of the EAC separation, driven by the EAC eddy field. Onshore transport occurs more frequently off Sydney 33.5–34.5oS; seasonal medians range -1.7 to 2.3Sv, with an onshore maximum in winter. The region is biologically productive, and it is a known white shark nursery area despite the dominance of the oligotrophic western boundary current. Hence an understanding of the drivers of circulation and cross-shelf exchange is important.
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Donald, Margaret R., Pamela A. Hazelton, and AnneMarie Clements. "Potential for using soil particle-size data to infer geological parent material in the Sydney Region." Soil Research 51, no. 4 (2013): 301. http://dx.doi.org/10.1071/sr12289.

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Ecological communities are more than assemblages of species. In assessing the presence of many ecological communities, interpretation of soil properties and associated parent material has become a definitive component under environmental legislation worldwide, and particularly in Australia. The hypothesis tested here is that the geological parent material of a soil sample can be determined from particle size fraction data of the Marshall soil texture diagram. Supervised statistical classifiers were built from data for four particle-size fractions from four soil landscape publications. These methods were modified by taking into account possible autocorrelation between samples from the same site. The soil samples could not be classified with certainty as being derived from Wianamatta Group Shale or Hawkesbury Sandstone parent material. The classification of alluvial/fluvial-derived soils was no better than chance alone. A good classifier using four-fraction compositional data could not be built to determine geological parent material. Hence, the three size fractions of the Marshall soil texture diagram are insufficient to determine the geological parent material of a soil sample.
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Pinto, Uthpala, Basant L. Maheshwari, Surendra Shrestha, and Charles Morris. "Understanding the meaning of river health for a community: perspectives from the peri-urban region of the Hawkesbury–Nepean catchment, Australia." Water Policy 14, no. 5 (June 4, 2012): 766–83. http://dx.doi.org/10.2166/wp.2012.074.

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In this study, we explored what river health means to ordinary citizens in the community through a survey of residents (n = 302) living in the peri-urban region of the Hawkesbury–Nepean River catchment in south-east Australia. Community responses concerning the meaning of river health included explanations that were simple and used everyday words but integrated a number of perspectives of the river as a natural and community resource which have often been lacking in descriptions pursued by experts and government agencies. A considerable proportion of participants surveyed related river health to its ecological integrity, visual appeal, hydrologic balance and ability to serve the community. The description of river health was not really affected by participants' age, gender or the distance they live from the river. The study provides a number of insights that can assist in the engagement of communities in future river monitoring and management programmes.
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Rogers, T., G. Eldershaw, and E. Walraven. "Reproductive success of little penguins, Eudyptula minor, on Lion Lsland, New South Wales." Wildlife Research 22, no. 6 (1995): 709. http://dx.doi.org/10.1071/wr9950709.

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Little penguins, Eudyptula minor, were once common along the Sydney coastline; however, today almost all breeding penguins in the region are found on a small island in the mouth of the Hawkesbury River. During a four-year study, the reproductive success of breeding birds on Lion Island was higher and less variable than that reported from other areas. The early commencement of breeding, and the high and stable breeding success during the study suggested that the colony had access to an abundant and stable food source. In addition, success was not reduced by introduced predators and human disturbance is relatively low. However, continued monitoring will be required to gain accurate information on the long-term viability of this colony as penguin breeding success is known to fluctuate widely between years.
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Masud, Shafaq, John Merson, and Daniel F. Robinson. "Adapting a holistic approach to flood management in the Hawkesbury–Nepean region: complexities and perceptions of the agencies involved." Journal of Environmental Planning and Management 59, no. 6 (July 27, 2015): 1126–47. http://dx.doi.org/10.1080/09640568.2015.1056339.

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7

Attenbrow, V., R. Bryant, T. Corkill, R. Pogson, and P. Grave. "Geological sources and chronological change in ground-edged artefacts of the Hawkesbury region, the Sydney Basin: A Macdonald River case study." Journal of Archaeological Science: Reports 24 (April 2019): 631–39. http://dx.doi.org/10.1016/j.jasrep.2019.01.025.

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8

Crawford, Tonia, Michelle Villeneuve, Ivy Yen, Joanne Hinitt, Micheal Millington, Madeleine Dignam, and Elizabeth Gardiner. "Disability inclusive disaster risk reduction with culturally and linguistically diverse (CALD) communities in the Hawkesbury-Nepean region: A co-production approach." International Journal of Disaster Risk Reduction 63 (September 2021): 102430. http://dx.doi.org/10.1016/j.ijdrr.2021.102430.

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9

York, Juliet, and Robert J. Whelan. "Post-fire Germination of Hakea sericea and Petrophile sessilis after Spring Burning." Australian Journal of Botany 46, no. 4 (1998): 367. http://dx.doi.org/10.1071/bt97075.

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Land managers are concerned about the season in which fire might be used as amanagement tool, in many ecosystems, yet there are few studies from whichresponses of plant populations might be predicted. Previous studies have beenmostly conducted in highly seasonal, Mediterranean-climate regions and thereis generally little replication of fires within a particular season. Findingsfrom these studies may be of limited value in ecosystems with weakly seasonalor non-seasonal climates, such as in the Sydney region. In this study, firebehaviour was quantified in three replicate fires in Hawkesbury Sandstonevegetation near Wollongong, New South Wales. Fires were conducted in spring1995, and seed germination of two Proteaceae species(Petrophile sessilis Sieber ex Schult. & Schult.f.and Hakea sericea Schrader) was followed for a yearafter fire. Fire intensity and patchiness varied substantially among the threesites, even though the fires occurred within a 2-week period, and the plantcommunities and fuel loads were similar. The timing of germination also varieda great deal among sites, occurring almost immediately after the fire at onesite but being delayed by nearly half a year at the other two. The amount ofgermination (but not the time course of germination) differed between thespecies: up to 70% of Hakea seeds had germinatedby week 44, whereas only around 5% of Petrophileseeds had germinated. There was also a variation in germination, especially ofPetrophile, within each site. It is concluded that, inthe Sydney region, the season of burning may not have a great impact on timingand amount of germination because rainfall is not strongly seasonal. Variationbetween sites and among years may therefore exceed variation between seasonsof burning.
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Daly, Garry. "The distribution and status of the Giant Burrowing Frog Heleioporus australiacus in the Shoalhaven region of south-eastern New South Wales." Australian Zoologist 40, no. 2 (December 2019): 256–71. http://dx.doi.org/10.7882/az.2018.011.

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Surveys were conducted for the Giant Burrowing Frog Heleioporus australiacus within 50 km of Nowra, on the south coast of New South Wales using a variety of methods. Thirty-eight 250 m transects were surveyed at night for 30 min each and 0–12 adult frogs were detected during these searches. Additional diurnal searches for tadpoles proved to be the most efficient method to detect the species and locate breeding sites. Of 102 sites surveyed, fragmented populations were found at 27 by the presence of tadpoles and adult frogs. The vegetation at these sites was woodland and open forest with a dense shrublayer of heath, but was often ecotonal. Forty-six percent of the sites were within 100 m of cliff edges/waterfalls. The lithology of sites where the frog was found varied from Hawkesbury, Nowra and Snapper Point sandstones. The exception was a population south of Ulladulla that occurs on undifferentiated sediments, but at that site exposed sandstone and a sandy overlay was present. The location of tadpoles indicated that adults were highly selective of the section of drainage line used for breeding. Often these sites consisted of a few small pools in non-perennial creeks. Breeding behaviour was associated with late summer and autumn rain, but in some sites reproduction did not occur annually. Based on distribution and habitat preference, the region has five discrete populations. Urban development has fragmented populations.
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Dissertations / Theses on the topic "Hawkesbury region"

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Darbas, Toni School of Science &amp Technology Studies UNSW. "Democracy, consultation and socio-environmental degradation : diagnostic insights from the Western Sydney/Hawkesbury-Nepean region." Awarded by:University of New South Wales. School of Science and Technology Studies, 2002. http://handle.unsw.edu.au/1959.4/19281.

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The use of community consultation to address socio-environmental degradation is entwined with contested democratic principles polarising views of its role. I frame this problem by examining three democratic paradigms faced with two contemporary problems. The deliberative argument that preferences require enrichment with debate mediates between the liberal-aggregative view that preferences are individual, private and amenable to aggregation and the view that participation in public life is foundational. Viewing consultation as deliberative reconciles the liberal-aggregative view of consultation as the illegitimate elevation of unrepresentative minority groups with the participationist view that consultation constitutes a step towards participatory democracy. Theorists of social reflexivity, however, point to an elided politics of knowledge challenging technoscience's exemption from politically garnered consent. Also neglected by much democratic theory is how functional differentiation renders self-referential legal, political, technoscientific and administrative domains increasingly unaccountable. I employ Habermas' procedural theory that public spheres allow social irritations into the political domain where they can be encoded into laws capable of systemic interjection in response, along with a dialogic extension accommodating the politics of knowledge. I then use this procedural-dialogic deliberative understanding of democracy to elucidate the context and outcomes of the NSW State's consultative strategy. The NSW state, institutionally compelled to underwrite economic growth, implicating itself in that growth's socio-environmental side effects provoking widespread contestation. The resulting Environmental Planning and Assessment Act (1979) and its adjunctive consultative provisions helped highlight the socio-environmental degradation of the Hawkesbury Nepean River Catchment via Western Sydney's urban sprawl, politicising the region. The convenement of a consultative forum to oversee a contaminated site audit within the region facilitated incisive lay critique of the technoscientific underpinnings of administrative underwriting of socio-environmental degradation. The discomforted NSW State tightened environmental policy, gutted the EP&A Act's consultative provisions and removed regional dialogic forums and institutions. I conclude that the socio-economic accord equating economic growth with social progress is both entrenched and besieged, destabilising the political/administrative/technoscientific regime built upon it. This withdrawal of avenues for critique risks deeper estrangement between reflexive society and the NSW State generative of electoral volatility.
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Jayawickrema, Jacintha, University of Western Sydney, of Science Technology and Environment College, and School of Environment and Agriculture. "A reconstruction of the ecological history of Longneck Lagoon New South Wales, Australia." THESIS_CSTE_EAG_Jayawickrema_J.xml, 2000. http://handle.uws.edu.au:8081/1959.7/702.

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The environmental history of Longneck Lagoon was reconstructed by analysing 15 sediment cores collected between 22 April, 1992 and 29 August, 1995. Longneck Lagoon is a shallow, man-modified lake situated in the north-western part of Sydney in New South Wales, Australia, in the Hawkesbury River floodplain. It has undergone a considerable change over recent years and at the end of the study was reported to have turbid water and no floating leaved plants or submerged aquatic plants. The hypothesis of this study was that vertical patterns in sediment characteristics can be related to biological, physical or chemical changes that have taken place within Longneck Lagoon and its catchment area. Assessment of inter-core variation within one area of the lagoon and between different areas was carried out and is highly recommended to others who may wish to conduct similar studies elsewhere. Restoration/regeneration of the previous diverse aquatic plant flora, associated with variable water depth in the pre-weir condition, would require the removal/modification of the weir, possibly reduction in the nutrient income to the lake, and, potentially, addressing mobilisation and internal cycling of accumulated nutrients which have accreted within the system.
Doctor of Philosophy (PhD)
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Thomas, Paul B., University of Western Sydney, of Science Technology and Environment College, and School of Environment and Agriculture. "Effects of factors associated with the season of a fire on germination of species forming soil seedbanks in the fire-prone Hawkesbury sandstone region of Sydney, Australia." THESIS_CSTE_EAG_Thomas_P.xml, 2004. http://handle.uws.edu.au:8081/1959.7/697.

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Fire is a recurrent disturbance that removes above ground vegetation in many locations throughout the world, including the Sydney region. Many species in fire-prone locations, and most species in the Sydney region, form soil seedbanks and regenerate through post-fire germination. However, a germination response is determined by the fire regime acting as a selective pressure over a sufficient period of time, rather than a single fire. The components of the fire-regime are intensity, season, type and frequency. The natural fire regime is dominated by warm-season fire, but management burning is conducted in cooler seasons. Cool season burning produces lower levels of germination than warm season fires in a number of locations with Mediterranean-type climate, but the effects of cool season burning on species composition in the relatively aseasonal Sydney region is unknown. An experimental approach was adopted to address this lack of knowledge. Fire can be simulated using heat shock and smoke (fire cues), and the seasonal factors of temperature and water availability can be reproduced in the laboratory. I have investigated the effect of various combinations of heat shock and smoke, of various pre-and post-fire cue temperatures, of prefire cue hydration status, of various post-fire cue water availabilities, and of accelerated aging before application of fire cues on germination of a number of species forming soil seedbanks in the Sydney region. A degree of primary dormancy was overcome in most species by the combination of heat shock and smoke in the current investigation. Fire intensity is expected to influence germination, as germination of most species was increased by the combination of heat shock and smoke within a narrow heat shock range.The interaction between ambient temperature and the level of heat shock may affect germination. Soil water content, and thus seed moisture content at the time of a fire may interact with the level of heat shock to affect both germination and survival of a seed. The age of a seed may also affect its germination response to fire. The above factors are predicted to affect the germination of species differently, and thus season of fire is expected to alter species composition. Such predictions can be readily field-tested
Doctor of Philosophy (PhD)
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Books on the topic "Hawkesbury region"

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Boon, Paul. The Hawkesbury River. CSIRO Publishing, 2017. http://dx.doi.org/10.1071/9780643107601.

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The Hawkesbury River is the longest coastal river in New South Wales. A vital source of water and food, it has a long Aboriginal history and was critical for the survival of the early British colony at Sydney. The Hawkesbury’s weathered shores, cliffs and fertile plains have inspired generations of artists. It is surrounded by an unparalleled mosaic of national parks, including the second-oldest national park in Australia, Ku-ring-gai National Park. Although it lies only 35 km north of Sydney, to many today the Hawkesbury is a ‘hidden river’ – its historical and natural significance not understood or appreciated. Until now, the Hawkesbury has lacked an up-to-date and comprehensive book describing how and when the river formed, how it functions ecologically, how it has influenced humans and their patterns of settlement and, in turn, how it has been affected by those settlements and their people. The Hawkesbury River: A Social and Natural History fills this gap. With chapters on the geography, geology, hydrology and ecology of the river through to discussion of its use by Aboriginal and European people and its role in transport, defence and culture, this highly readable and richly illustrated book paints a picture of a landscape worthy of protection and conservation. It will be of value to those who live, visit or work in the region, those interested in Australian environmental history, and professionals in biology, natural resource management and education.
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Bell, Stephen, Christine Rockley, and Anne Llewellyn. Flora of the Hunter Region. CSIRO Publishing, 2019. http://dx.doi.org/10.1071/9781486311033.

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The Hunter Region, between the Hawkesbury and Manning rivers in eastern New South Wales, hosts a rich diversity of vegetation, with many species found nowhere else. Spanning an area from the coast to the tablelands and slopes, its rainforests, wet and dry sclerophyll forests, woodlands, heathlands, grasslands and swamps are known for their beauty and ecological significance. Flora of the Hunter Region describes 54 endemic trees and large shrubs, combining art and science in a manner rarely seen in botanical identification guides. Species accounts provide information on distribution, habitat, flowering, key diagnostic features and conservation status, along with complete taxonomic descriptions. Each account includes stunning botanical illustrations produced by graduates of the University of Newcastle's Bachelor of Natural History Illustration program. The illustrations depict key diagnostic features and allow complete identification of each species. This publication will be a valuable resource for those interested in the plants of the region, including researchers, environmental consultants, horticulturalists and gardeners, bush walkers, herbaria, and others involved in land management.
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Book chapters on the topic "Hawkesbury region"

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Pells, P. J. N. "Engineering properties of the Hawkesbury Sandstone." In Engineering Geology of the Sydney Region, 179–97. Routledge, 2018. http://dx.doi.org/10.1201/9780203757390-10.

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Ward, P. "Excavation of Hawkesbury Sandstone in the Sydney Region." In Engineering Geology of the Sydney Region, 199–202. Routledge, 2018. http://dx.doi.org/10.1201/9780203757390-11.

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Reports on the topic "Hawkesbury region"

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Bolton, T. E., H. M. Steele-Petrovich, and I. Munro. Middle ordovician [chazyan] stratigraphy, and bryozoan and conodont faunas in the Hawkesbury region, eastern Ontario. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/132677.

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