Bibliografías temáticas / Floodplain ecology

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Literatura académica sobre el tema "Floodplain ecology"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 30 de julio de 2024

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Artículos de revistas sobre el tema "Floodplain ecology"

1

McGinness, Heather M., Anthony D. Arthur y Julian R. W. Reid. "Woodland bird declines in the Murray–Darling Basin: are there links with floodplain change?" Rangeland Journal 32, n.º 3 (2010): 315. http://dx.doi.org/10.1071/rj10016.

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Woodland bird population declines in Australia have been attributed to various factors including habitat loss, fragmentation, and degradation. However, the influence of altered water availability in the landscape upon woodland bird populations has not been examined, particularly in terms of changes in flood regimes and subsequent loss of floodplain productivity. In this review, we examine the importance to woodland birds of floodplains, floods, and associated vegetation communities, highlighting potential links between declining water availability, habitat degradation, and bird populations. Floodplain woodlands and forests may be important refuges for woodland bird populations because (1) floodplain woodlands and forests comprise some of the largest and most continuous vegetation remnants in south-east Australia; and (2) floods intermittently supply water, sediment and nutrients that drive greater primary and secondary productivity than found in woodlands not subject to flooding. However, floodplains in south-east Australia have been subject to substantial flow regime change, driven predominantly by dams and irrigation water use. Consequently, habitat quality for woodland birds has been degraded, potentially exacerbating population declines. We suggest that despite such change, floodplain communities and their requisite floods remain of great importance for the persistence, productivity and diversity of woodland birds in Australian drylands. We hypothesise that (1) the influence of flooding upon primary and secondary productivity in floodplain and riparian zones is a key driver of resident bird populations, and a key determinant of nomadic/migratory bird use of a site; (2) alterations in flooding and consequent changes in productivity and condition of floodplain vegetation have contributed to observed declines in resident woodland birds in Australian drylands; and (3) the influence of flooding upon productivity extends beyond local populations of floodplain residents to non-floodplain populations via dispersal, and that floodplain woodlands often act as a source population for surrounding non-floodplain woodlands. We make several testable predictions regarding these hypotheses.
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2

Marren, Philip M., James R. Grove, J. Angus Webb y Michael J. Stewardson. "The Potential for Dams to Impact Lowland Meandering River Floodplain Geomorphology". Scientific World Journal 2014 (2014): 1–24. http://dx.doi.org/10.1155/2014/309673.

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The majority of the world's floodplains are dammed. Although some implications of dams for riverine ecology and for river channel morphology are well understood, there is less research on the impacts of dams on floodplain geomorphology. We review studies from dammed and undammed rivers and include influences on vertical and lateral accretion, meander migration and cutoff formation, avulsion, and interactions with floodplain vegetation. The results are synthesized into a conceptual model of the effects of dams on the major geomorphic influences on floodplain development. This model is used to assess the likely consequences of eight dam and flow regulation scenarios for floodplain geomorphology. Sediment starvation downstream of dams has perhaps the greatest potential to impact on floodplain development. Such effects will persist further downstream where tributary sediment inputs are relatively low and there is minimal buffering by alluvial sediment stores. We can identify several ways in which floodplains might potentially be affected by dams, with varying degrees of confidence, including a distinction between passive impacts (floodplain disconnection) and active impacts (changes in geomorphological processes and functioning). These active processes are likely to have more serious implications for floodplain function and emphasize both the need for future research and the need for an “environmental sediment regime” to operate alongside environmental flows.
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Garnett, Jeffrey A. y Darold P. Batzer. "Longitudinal variation in community structure of floodplain fishes along two rivers of the southeastern USA". Canadian Journal of Fisheries and Aquatic Sciences 71, n.º 9 (septiembre de 2014): 1291–302. http://dx.doi.org/10.1139/cjfas-2013-0422.

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Many studies have examined whether longitudinal variation exists in fish communities within stream channels. Yet despite the acknowledged importance of adjacent floodplain ecosystems, no study has investigated longitudinal variation in fish communities in floodplain wetlands. We conducted a study to determine if distinct fish communities exist between upper and lower river floodplains. We predicted that floodplains in the upper portions of a watershed will be dominated by opportunistic riverine fish. In contrast, floodplains farther downstream in the watershed will primarily consist of obligate floodplain fishes. We sampled fishes at 21 floodplain sites along the lengths of the Oconee–Altamaha and Broad–Savannah river systems of Georgia, USA, during the 2008 and 2009 flood seasons. A modified mark–recapture method was utilized to estimate probabilities of species detection and occupancy. Ordination and analysis of similarity using species site occupancy estimates identified two unique communities related to floodplain position, and indicator species analysis supported our hypothesis of community distinction based on life history traits. Water resource managers should consider how flood pulse character influences fish communities when regulating flow regimes.
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Pittock, Jamie, Kate Auty, C. Max Finlayson, Kate Lyons, John Koehn, Richard Loyn y Matthew J. Colloff. "Evidence-based conservation of the northern Victorian floodplain". Proceedings of the Royal Society of Victoria 134, n.º 2 (14 de febrero de 2023): 108–15. http://dx.doi.org/10.1071/rs22004.

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The floodplain wetlands of northern Victoria are crucial for conservation of biodiversity and the livelihoods of people. Extensive ecosystem degradation and recent extreme floods and droughts have highlighted the urgent need for more sustainable management. We draw on expertise in ecology, hydrology, climatology and governance to synthesise key knowledge and options for enhanced conservation of the floodplains. A key finding is the need for more flexible mechanisms for delivering water to the diverse array of wetlands. A key option is ‘relaxing constraints’ that involves agreements with selected landholders to enable pulses of environmental water to fill river channels and safely spill onto low-lying floodplain wetlands. This should improve conservation of biodiversity, better manage flood risk and support a diverse range of local agricultural and recreational industries. These options may aid Victorians to find better ways of managing the rich lands, waters and biota of the floodplains in the southern part of the Murray–Darling Basin.
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Boucek, Ross E., Mariajesus Soula, Felipe Tamayo y Jennifer S. Rehage. "A once in 10 year drought alters the magnitude and quality of a floodplain prey subsidy to coastal river fishes". Canadian Journal of Fisheries and Aquatic Sciences 73, n.º 11 (noviembre de 2016): 1672–78. http://dx.doi.org/10.1139/cjfas-2015-0507.

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Disturbances that alter cross-habitat food web linkages can lead to whole-scale changes to aquatic systems. In coastal rivers of the Everglades (Florida, U.S.A.), increases in rainfall inundate adjacent floodplains, providing habitat for floodplain fish and macroinvertebrate species. In the dry season, rainfall decreases and floodplains dry, forcing floodplain prey into these river systems. These prey provide a prey subsidy for an estuarine predator, the common snook (Centropomus undecimalis). In 2011, severe drought impacted the region, likely affecting this prey subsidy. In this study, we ask (i) did the 2011 drought affect the magnitude and composition of floodplain prey subsidies to the common snook? and (ii) if species composition changed, were there energetic differences between the pre- and post-disturbance prey species? Results showed that 1 year after the drought, subsidies to the common snook decreased by 75%. On top of that decrease in overall flux, diet composition of the common snook switched from floodplain fishes to drought-tolerant floodplain macroinvertebrates. Lastly, energetic analyses showed that these postdrought macroinvertebrate prey subsidies had 43% less calories than floodplain fishes. Our findings illustrate the importance of considering not only the biomass that transfers from one food web to the next, but also how the species composition of the subsidy may affect incorporation into recipient food webs.
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Hill, Nicholas M. y David J. Garbary. "Habitat may limit herb migration at the northern edge of the Appalachian deciduous forest *This paper is dedicated to our botanical mentor, the late Dr. Sam P. Vander Kloet." Botany 89, n.º 9 (septiembre de 2011): 635–45. http://dx.doi.org/10.1139/b11-055.

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Forest herbs account for greater species richness than any other plant type in deciduous forests and are the most vulnerable to anthropogenic disturbances. We examined whether the limited distribution of rare Appalachian forest herbs in Nova Scotia is related to edaphic specialization or a history of anthropogenic disturbance. Remnant populations are restricted to floodplain forest, where both habitat factors and disturbance history differ significantly from those of adjacent upland sugar maple forest. Contrasting soil and litter layers between floodplain stands and adjacent upland sites revealed the latter to be deficient in key cations (calcium, magnesium, boron); however, regression models for uplands and for floodplains showed that native herb richness was related to soil fertility in each case. Soil calcium accounted for most of the species richness variation among floodplains for native herbs and for a large seeded guild that contains most of the rare species on floodplains. Given the widespread anthropogenic decalcification of forest soils throughout eastern North America, conservation efforts must (i) increase and connect deciduous forest floodplain ecosystems and (ii) understand how to manage and create suitable cation-rich migration corridors in the forest landscape.
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Higgisson, William, Dianne Gleeson, Linda Broadhurst y Fiona Dyer. "Genetic diversity and gene flow patterns in two riverine plant species with contrasting life-history traits and distributions across a large inland floodplain". Australian Journal of Botany 68, n.º 5 (2020): 384. http://dx.doi.org/10.1071/bt20074.

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Gene flow is a key evolutionary driver of spatial genetic structure, reflecting demographic processes and dispersal mechanisms. Understanding how genetic structure is maintained across a landscape can assist in setting conservation objectives. In Australia, floodplains naturally experience highly variable flooding regimes that structure the vegetation communities. Flooding plays an important role, connecting communities on floodplains and enabling dispersal via hydrochory. Water resource development has changed the lateral-connectivity of floodplain-river systems. One possible consequence of these changes is reduced physical and subsequent genetic connections. This study aimed to identify and compare the population structure and dispersal patterns of tangled lignum (Duma florulenta) and river cooba (Acacia stenophylla) across a large inland floodplain using a landscape genetics approach. Both species are widespread throughout flood prone areas of arid and semiarid Australia. Tangled lignum occurs on floodplains while river cooba occurs along rivers. Leaves were collected from 144 tangled lignum plants across 10 sites and 84 river cooba plants across 6 sites, on the floodplain of the lower and mid Lachlan River, and the Murrumbidgee River, NSW. DNA was extracted and genotyped using DArTseq platforms (double digest RADseq). Genetic diversity was compared with floodplain-river connection frequency, and genetic distance (FST) was compared with river distance, geographic distance and floodplain-river connection frequency between sites. Genetic similarity increased with increasing floodplain-river connection frequency in tangled lignum but not in river cooba. In tangled lignum, sites that experience more frequent flooding had greater genetic diversity and were more genetically homogenous. There was also an isolation by distance effect where increasing geographic distance correlated with increasing genetic differentiation in tangled lignum, but not in river cooba. The distribution of river cooba along rivers facilitates regular dispersal of seeds via hydrochory regardless of river level, while the dispersal of seeds of tangled lignum between patches is dependent on flooding events. The genetic impact of water resource development may be greater for species which occur on floodplains compared with species along river channels.
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Pettit, N. E., P. Bayliss y R. Bartolo. "Dynamics of plant communities and the impact of saltwater intrusion on the floodplains of Kakadu National Park". Marine and Freshwater Research 69, n.º 7 (2018): 1124. http://dx.doi.org/10.1071/mf16148.

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The distribution of vegetation communities on floodplains within Kakadu National Park, in tropical northern Australia, is related to micro-topography and, therefore, water depth and duration of flooding. Floodplains of the Kakadu Region, because of their proximity to the coast, are most vulnerable to the impacts of climate change, with saltwater intrusion, as a result of sea-level rise, being a serious risk. Our main objectives were to determine the variability of the distribution of plant communities on the floodplains and understand the potential risk of increased saltwater intrusion to these communities. We present data on the natural salinity-tolerance range of selected floodplain plants and discuss the likely effects of saltwater intrusion on floodplain plant distributions and productivity. The results of change analysis using high spatial-resolution satellite data showed the importance of the variation of water availability in determining patterns of plant communities. Hydrodynamic modelling suggests that sea level rises will result in 40% of the floodplain transformed into saline habitats by 2070. The most obvious effect of this would be the conversion of the freshwater vegetation to salt-tolerant mangroves and other salt-marsh plants, with a concomitant change in animals and their use of these areas.
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Brown, T. T. y C. A. Fuller. "Stress and parasitism of white-footed mice (Peromyscus leucopus) in dry and floodplain environments". Canadian Journal of Zoology 84, n.º 12 (diciembre de 2006): 1833–39. http://dx.doi.org/10.1139/z06-183.

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We hypothesized that flooding represents an environmental stressor that might affect the corticosterone levels, parasite prevalence, and life history of small mammals living in floodplain environments. We compared populations of white-footed mice ( Peromyscus leucopus (Rafinesque, 1818)) on floodplains and dry areas. We found more males on floodplains (p = 0.008) and more females on dry areas (p = 0.005). There were no differences in mass (p > 0.05) or intestinal parasite prevalence (p = 0.665) between dry and floodplain habitats, but bot fly larvae were significantly more prevalent in males living on floodplains (p = 0.043). Floodplain animals had significantly higher levels of corticosterone than dry-area animals in fall, and lower levels in summer (F[1,20] = 4.483, p = 0.047). In addition, we found that animals with intestinal parasites had higher levels of corticosterone than those that were without parasites (p = 0.014) or that harbored bot fly larvae (p = 0.001). Floodplains seem to be harsher environments than dry areas, but this may be a result of differences in habitat rather than a direct result of flooding.
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Stephenson, Sarah A., Tiffanie M. Nelson, Claire Streten, Karen S. Gibb, David Williams, Paul Greenfield y Anthony A. Chariton. "Sea-level rise in northern Australia's Kakadu National Park: a survey of floodplain eukaryotes". Marine and Freshwater Research 69, n.º 7 (2018): 1134. http://dx.doi.org/10.1071/mf18067.

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Forecasted climate-change models predict that much of northern Australia’s coastal habitats will be in retreat because of saltwater intrusion (SWI) from sea-level rise. A region of primary concern is the nutrient-rich and biodiverse floodplains of world heritage-listed Kakadu National Park (KNP). To understand the implications of SWI, we need fundamental baseline information for floodplain biota from the South Alligator River, KNP, northern Australia, and informative data on how increased and prolonged exposure to salt is likely to shape the eukaryotic community. To assist in addressing these key knowledge gaps, we used amplicon sequencing to examine the composition of eukaryotic soil communities from the South Alligator River floodplain, an ecologically important area at the ‘coalface’ of sea-level rise. Samples were obtained from three river zones and three floodplain morphologies, capturing a wide range of habitats and episodic exposures to both saltwater and freshwater. We found that both the floodplain morphology and positioning along the river significantly influenced eukaryotic composition. However, the influence of these variables varied greatly among the floodplain morphologies, with correlative evidence suggesting that both salinity and pH played a dominant role in shaping communities within lower parts of the floodplain, with this being particularly evident in those regions subjected to major tidal influence (estuarine funnel and sinuous, and cuspate).
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Tesis sobre el tema "Floodplain ecology"

1

Sims, Neil C. "The landscape-scale structure and functioning of floodplains". Connect to this title online, 2004. http://cicada.canberra.edu.au/public/adt-AUC20050706.095439/.

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Thesis (Ph. D.)--University of Canberra, 2004.
Title from PDF title page (viewed on July 20, 2005). Pages 185-194 lacking in digital version of thesis. Includes bibliographical references (p. 155-184).
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Leigh, Catherine. "Floodplain river function in Australia's wet/dry tropics, with specific reference to aquatic macroinvertebrates and the Gulf of Carpentaria". Thesis, Griffith University, 2009. https://eprints.qut.edu.au/119606/1/Leigh_2009_02Thesis.pdf.

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This thesis provides significant insight into our understanding of river function in highly seasonal systems. In north Australia’s vast wet/dry tropics, large rivers and associated wetlands are regarded among the continent’s most biologically diverse and ecologically healthy. Until recently however, research on the hydrology, biodiversity and function of Australian rivers has focussed on the south. My thesis investigates floodplain river function in Australia’s wet/dry tropics, more specifically in the Gulf of Carpentaria drainage division, and is the first to present a dynamic conceptual model of river function for these systems. Three major themes reside within riverine ecology: flow, pattern and process. These themes feature within existing conceptual models of large river function, for example, the River Continuum Concept, the Flood Pulse Concept and the Riverine Productivity Model. These themes and models were used as a template to explore river function in the study region: flow, as broad-scale hydrology and more localised hydrological connectivity; patterns, as spatiotemporal variation in aquatic macroinvertebrate biodiversity; and processes, as organic carbon flow through aquatic macroinvertebrate food webs. The flow regime is major driver of river function, and as such, a multivariate analysis of daily flow data from large, Gulf of Carpentaria rivers was conducted. Two major classes of river were found, each with a distinct flow regime type: ‘tropical’ rivers were characterised by flow regularity and permanent hydrological connection, ‘dryland’ rivers by high levels of flow variability and ephemerality, similar to rivers in Australia’s central and semi-arid zones. However, both river types experienced seasonal change, associated with higher flow magnitudes in the wet and lower flow magnitudes in the dry, with ‘dryland’ rivers typified by greater numbers of zero flow days. These features—flow regularity and permanence for ‘tropical’ rivers, flow variability and absence for ‘dryland’ rivers, and wet/dry seasonality for both river types—were proposed as the broad-scale hydrological drivers of river function in the Gulf region and are expected to be found as important drivers throughout the wet/dry tropics.
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Milne, Judith May. "Plant community ecology of a major subtropical riverine floodplain". Thesis, University of Glasgow, 2004. http://theses.gla.ac.uk/4057/.

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This project described the vegetation of a stretch of the Parana River and investigated which natural or human-imposed factors might be controlling its characteristics, its capacity for biodiversity support and its potential to provide an economic resource. This information is of value in the planning of management strategies aiming to conserve biodiversity and develop sustainable ways in which the floodplain resources can be utilised. Central to this study were the surveys of vegetation and environmental characteristics of aquatic, terrestrial and transitional habitats of the Parana floodplain near Porto Rico. These produced extensive data sets which helped to reveal the types of vegetation-environment relationships structuring the floodplain plant communities. To complement this investigative approach, three aspects of the functioning of floodplain vegetation were chosen for closer study. These were the impacts of livestock grazing on wetland and island vegetation, competitive interactions between pairs of free-floating aquatic plant species and the role of aquatic macrophytes in contributing carbon to aquatic food webs. Three major community types were identified in the aquatic habitats of the floodplain, one which included Eichhornia azurea in mixture with several free-floating and emergent species, a second in which E. azurea was strongly dominant and a third comprised purely of submerged species. Two strongly contrasting broad vegetation communities were identified at bank and shore environments. Polygonum and Ludwigia species were important in one group and Poaceae, creepers, woody plants and ferns in the other group. Sub-groups of these communities could also be suggested, but these are less distinct. Most of the floodplain sites supported a Poaceae-creeper community type with the remaining sites supporting a community indicated by Polygonum species. The Poaceae group was comprised of a number of sub-communities in which the importance of Poaceae relative to other species varied. The aquatic vegetation communities differed structurally with contrasting community biomass, canopy height, canopy cover, species richness and stem density. They were associated with waterbodies with different water depth and pH and different sediment nitrogen and phosphorus contents. Water flow rate category and underwent light availability also differed between the sites that tended to support the different vegetation types. The two major bank and shore vegetation communities differed in canopy cover, in the soil nitrogen, phosphorus and calcium levels with which they were associated and in the steepness of the bank on which they tended to grow. Floodplain vegetation communities contrasted in species richness and differed in the soil nitrogen and calcium levels and river systems with which they were associated.
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Anderson, Michelle Louise. "The edge effect lateral habitat ecology of an alluvial river flood plain /". Diss., [Missoula, Mont.] : The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-10012008-134442/.

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Holowaty, Nadja Deyglun. "Floodplain management in Quebec : a case study of the Mille Iles River floodplains". Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63232.

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Bonyongo, Mpaphi Casper. "Vegetation ecology of the seasonal floodplains in the Okavango Delta, Botswana". Diss., Connect to this title online, 1999. http://upetd.up.ac.za/thesis/available/etd-03012007-103712/.

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Soong, Oliver. "Vegetation Establishment Following Floodplain Restoration in Mediterranean-climate California". Thesis, University of California, Santa Barbara, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10254066.

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Although herbaceous communities are important components of floodplain ecosystems, the factors constraining their restoration and post-restoration dynamics are poorly understood. Over the decade following restoration of a 3.2 km reach of the Merced River and floodplain in California, we tracked herbaceous community composition to distinguish floodplain habitats and utilized perturbations from revegetation treatments and post-restoration flooding to generate community assembly rule hypotheses regarding treatment effectiveness and persistence, with a particular interest in native perennials capable of suppressing non-natives over time if undisturbed. Revegetation treatments comprised combinations of sowing a sterile cover crop, sowing native species, and inoculating mycorrhizae. Most surveyed floodplain areas comprised a low terrace characterized by exceptionally droughty soils, relatively deep groundwater, and occasional flooding lasting into summer. Few species could tolerate both flood and drought to this extent, and the flood year community was generally distinct from that in non-flood years. Both communities were dominated by ruderals capable of avoiding stress and re-establishing following disturbance, including many non-native annual grassland species. Only Artemisia douglasiana responded to the treatments, as most seeded native species failed to establish, including those native perennial grasses expected to suppress non-native annuals, while other seeded native species either established adequately from natural dispersal or failed to persist through moderate flooding. Neither the cover crop nor mycorrhizal inoculation had any meaningful effect. Restoration efforts in naturally ruderal-dominated habitats may be better spent allowing natural regeneration, addressing particularly noxious invasives, and identifying or constructing habitats supporting long-lived native perennials.

Although originally developed for population sizes and population growth rates, modern capture-recapture models can estimate demographic rates in complex situations: multistate models for multiple study sites and stage-structured populations, superpopulation entry probability models for recruitment, and multievent models when state assessments are uncertain. However, combinations of these complications, such as recruitment studies with uncertain state assessments, are common, yet no single model has explicitly incorporated all of these elements. Ultimately, these models estimate the same fundamental population process with the same general approach, and we combine them in a generalized hidden process model based upon a simple discrete state and transition population model with Poisson recruitment that can estimate how recruitment and survivorship rates vary with respect to measured covariates from uncertain state assessments for a stage-structured population at multiple sites. Although closely related to the motivating models, the generalized model relaxes the Markov assumption. While we provide the distributions necessary to implement Bayesian data augmentation methods, we also provide an efficient analytical likelihood with a compact parameter space that is applicable in the absence of density-dependent mortality. As a demonstration, we estimate the influence of several covariates on recruitment and survivorship rates from uncertain observations of Salix gooddingii seedlings at different locations along a riparian gradient, and we use simulations to examine variation in the precision of estimated parameters.

In Mediterranean climates, cottonwoods and willows often exhibit high germination and seedling mortality rates, with recruitment occurring primarily in the occasional year when favorable spring floods improve survivorship. However, along the Robinson Reach of the Merced River, both germination and mortality rates appeared to be atypically low. To understand why these rates were so low along this recently restored flow-regulated, gravel-bedded stream, we surveyed Populus fremontii, Salix exigua, and Salix gooddingii, estimated germination and survivorship rates, and examined their correlations with factors expected to constrain recruitment, namely seed release, seed arrival, moist germination beds, light levels, groundwater depth, groundwater recession rates, and shear stress. Germination/initial establishment rates were low due in part to low seed arrival rates. Only Salix gooddingii was abundant enough to model in detail, and while moist germination surfaces increased germination/initial establishment, rates were low overall. Survivorship rates for Salix gooddingii seedlings and for small individuals were not correlated with any examined covariates. Seedlings tolerated moderate competition, and the absence of major scouring, even during 6 year flows, enabled survival at sites with sufficiently shallow groundwater that seedlings were unaffected by groundwater recession rates.

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Dick, David Allen. "Spatial heterogeneity of soil nutrients, nitrogen dynamics and vegetation in a 3rd order stream floodplain in southwestern West Virginia". Huntington, WV : [Marshall University Libraries], 2003. http://www.marshall.edu/etd/descript.asp?ref=339.

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Thesis (M.S.)--Marshall University, 2003.
Title from document title page. Document formatted into pages; contains ix, 140 p. including illustrations. Includes vita. Includes bibliographical references (p. 104-108).
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Leigh, Catherine. "Floodplain River Function in Australia's Wet/Dry Tropics, With Special Reference to Aquatic Macroinvertebrates and the Gulf of Carpentaria". Thesis, Griffith University, 2009. http://hdl.handle.net/10072/367453.

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This thesis provides significant insight into our understanding of river function in highly seasonal systems. In north Australia’s vast wet/dry tropics, large rivers and associated wetlands are regarded among the continent’s most biologically diverse and ecologically healthy. Until recently however, research on the hydrology, biodiversity and function of Australian rivers has focussed on the south. My thesis investigates floodplain river function in Australia’s wet/dry tropics, more specifically in the Gulf of Carpentaria drainage division, and is the first to present a dynamic conceptual model of river function for these systems. Three major themes reside within riverine ecology: flow, pattern and process. These themes feature within existing conceptual models of large river function, for example, the River Continuum Concept, the Flood Pulse Concept and the Riverine Productivity Model. These themes and models were used as a template to explore river function in the study region: flow, as broad-scale hydrology and more localised hydrological connectivity; patterns, as spatiotemporal variation in aquatic macroinvertebrate biodiversity; and processes, as organic carbon flow through aquatic macroinvertebrate food webs. The flow regime is major driver of river function, and as such, a multivariate analysis of daily flow data from large, Gulf of Carpentaria rivers was conducted. Two major classes of river were found, each with a distinct flow regime type: ‘tropical’ rivers were characterised by flow regularity and permanent hydrological connection, ‘dryland’ rivers by high levels of flow variability and ephemerality, similar to rivers in Australia’s central and semi-arid zones. However, both river types experienced seasonal change, associated with higher flow magnitudes in the wet and lower flow magnitudes in the dry, with ‘dryland’ rivers typified by greater numbers of zero flow days. These features—flow regularity and permanence for ‘tropical’ rivers, flow variability and absence for ‘dryland’ rivers, and wet/dry seasonality for both river types—were proposed as the broad-scale hydrological drivers of river function in the Gulf region and are expected to be found as important drivers throughout the wet/dry tropics.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Environment
Science, Environment, Engineering and Technology
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Kreibich, Heidi. "N₂ fixation and denitrification in a floodplain forest in central Amazonia, Brazil". Connect to this title online (Marburg Universität site) Connect to this title online (Deutsche Nationalbibliothek site), 2002. http://archiv.ub.uni-marburg.de/diss/z2002/0398/.

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Más fuentes

Libros sobre el tema "Floodplain ecology"

1

V, Ward James y Uehlinger U, eds. Ecology of a glacial floodplain. Dordrecht: Kluwer Academic Publishers, 2003.

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), Scientific Assessment and Strategy Team (U S. Proceedings of the Scientific Assessment and Strategy Team workshop on hydrology, ecology, and hydraulics, Sioux Falls, South Dakota, February 15-16, 1994. Washington, D.C: Scientific Assessment and Strategy Team, Interagency Floodplain Management Review Committee, 1996.

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Baptist, M. J. Modelling floodplain biogeomorphology: Proefschrift ter verkrijging van de graad van doctor aan de Technische Universiteit Delft ... Delft, Netherlands: DUP Science, 2005.

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Álvarez, Marc A. Floodplains: Physical geography, ecology and societal interactions. Hauppauge, N.Y: Nova Science Publisher's, Inc., 2010.

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Bali︠u︡k, T. V. Formirovanie ėkosistem na pervichnykh ėlementakh poĭmennogo relʹefa v estestvennykh i antropogenno izmenennykh uslovii︠a︡kh. Moskva: In-t vodnykh problem RAN, 2005.

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Scholz, Mathias. Ökosystemfunktionen von Flussauen: Analyse und Bewertung von Hochwasserretention, Nährstoffrückhalt, Kohlenstoffvorrat, Treibhausgasemissionen und Habitatfunktion : Ergebnisse des F+E-Vorhabens (FKZ 3508 850 100). Bonn-Bad Godesberg: Bundesamt für Naturschutz, 2012.

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Jana, Straškrabová y Jihočeská univerzita (České Budějovice, Czech Republic). Biologická fakulta., eds. Aluviální louky-jejich současný stav a možnosti obnovy: Seminář konaný dne 13. a 14. února 1995 na Biologické fakultě Jihočeské university v Českých Budějovicích = Floodplain meadows-ecological functions, contemporary state and possibilities for restoration : workshop held at the Faculty of Biological Sciences, the University of South Bohemia in České Budějovice, The Czech Republic, on 13 and 14 February, 1995. Praha: Agentura ochrany přírody a krajiny ČR, 1996.

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Canto, Otávio do. Várzea e varzeiros da Amazônia. Belém: Museu Paraense Emílio Goeldi, 2007.

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J, Junk Wolfgang, ed. The central Amazon floodplain: Ecology of a pulsing system. Berlin: Springer, 1997.

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yliopisto, Turun, ed. Abiotic control of the vegetation in Peruvian Amazon floodplains: Environment change and pioneer species. Turku, Finland: Dept. of Biology, University of Turku, 1992.

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Capítulos de libros sobre el tema "Floodplain ecology"

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Wellstein, C., U. Uehlinger y R. Zah. "Terrestrial Floodplain Vegetation". En Ecology of a Glacial Flood Plain, 109–21. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0181-5_7.

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Zah, R., M. Maisch, U. Uehlinger y C. Rothenbühler. "Glacial History and Floodplain Evolution". En Ecology of a Glacial Flood Plain, 17–36. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0181-5_2.

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Junk, Wolfgang J. "General Aspects of Floodplain Ecology with Special Reference to Amazonian Floodplains". En Ecological Studies, 3–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-662-03416-3_1.

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Bhadu, Shobhika y Milap Punia. "Governance and Floodplain Extent Changes of Yamuna River Floodplain in Megacity Delhi". En Advanced Remote Sensing for Urban and Landscape Ecology, 191–228. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3006-7_10.

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Jung, Vincent, Lucien Hoffmann y Serge Muller. "Ecophysiological responses of nine floodplain meadow species to changing hydrological conditions". En Herbaceous Plant Ecology, 225–34. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-90-481-2798-6_18.

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Klimas, Charles V. "River Regulation Effects on Floodplain Hydrology and Ecology". En The Ecology and Management of Wetlands, 40–49. New York, NY: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8378-9_4.

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Klimas, Charles V. "River Regulation Effects on Floodplain Hydrology and Ecology". En The Ecology and Management of Wetlands, 40–49. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-7392-6_4.

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Zulka, K. P. "Carabids in a Central European floodplain: species distribution and survival during inundations". En Carabid Beetles: Ecology and Evolution, 399–405. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-017-0968-2_61.

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Šustek, Z. "Classification of the carabid assemblages in the floodplain forests in Moravia and Slovakia". En Carabid Beetles: Ecology and Evolution, 371–76. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-017-0968-2_56.

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Gagnon, Paul R., Loretta L. Battaglia, Brice B. Hanberry, William H. Conner y Sammy L. King. "Fire in Floodplain Forests of the Southeastern USA". En Fire Ecology and Management: Past, Present, and Future of US Forested Ecosystems, 201–42. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73267-7_6.

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Actas de conferencias sobre el tema "Floodplain ecology"

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SÂRBU, Daniela, Mihaela DULĂU, Stelian STĂNESCU, Ileana TĂNASE y Marinela MOLDOVEANU. "Identification and Evaluation of Potential Floodplain Areas Using the Floodplain Evaluation Matrix - Romanian Case Study". En Air and Water – Components of the Environment 2021 Conference Proceedings. Casa Cărţii de Ştiinţă, 2021. http://dx.doi.org/10.24193/awc2021_10.

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A large number of floodplains got lost due to settlements, infrastructure and agriculture. The reconnection of floodplains plays a significant role considering water retention potential and other aspects such as biodiversity conservation, improvement of water status and river morphology. The delineation and evaluation of potential floodplains and their reconnection capacity require the consideration of the multiple parameters to characterize the effectiveness of floodplains in terms of hydrology/hydraulics, ecology and sociology. In order to delineate floodable area within the lower part of the Desnatui river an unsteady 1D hydrodynamic model has been built up and calibrated, using HEC-RAS software. The Floodplain Evaluation Matrix tool has been applied taking into account the following categories of parameters: hydrology (peak reduction ΔQ, flood wave translation Δt), hydraulics (water level Δh), ecology (connectivity of floodplain water bodies, existence of protected species) and socio-economics (potentially affected buildings, land use). The results showed that identified floodplain areas have high demand for restoration.
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Cazanescu, Severin. "FLOODPLAIN MAPS PREPARATION WITH AUTOCAD CIVIL 3D AND OPEN SOURCE SOFTWARE". En 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/be5.v1/s20.064.

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Grigorescu, Ines. "ASSESSING INVASIVE TERRESTRIAL PLANT SPECIES IN THE MURES FLOODPLAIN NATURAL PARK. ROMANIA". En 14th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2014. http://dx.doi.org/10.5593/sgem2014/b51/s20.008.

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Balteanu, Dan. "DRYNESS AND DROUGHT PHENOMENA IN THE DANUBE FLOODPLAIN: THE CALAFAT-VIDIN - TURNU MAGURELE-NIKOPOLE SECTOR. A LOCAL COMMUNITY-BASED PARTICIPATORY APPROACH". En 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/be5.v1/s20.039.

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Dumitrascu, Monica. "ASSESSING INVASIVE TERRESTRIAL PLAN SPECIES AMORPHA FRUTICOSA IN THREE WETLAND AREAS IN ROMANIA: DANUBE DELTA BIOSPHERE RESERVE, COMANA NATURAL PARK AND MURES FLOODPLAIN NATURAL PARK". En 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/be5.v1/s20.016.

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Florin - Constantin, Mihai. "QUANTITATIVE ASSESSMENT OF HOUSEHOLD WASTE DISPOSED IN FLOODPLAINS OF RIVERS FROM EXTRA-CARPATHIAN REGION OF NEAMT COUNTY, ROMANIA." En 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/be5.v1/s20.103.

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Machar, Ivo. "ADAPTATION MEASURES FOR THE CENTRAL EUROPEAN FLOODPLAINS LANDSCAPE IN THE CONTEXT OF GLOBAL CHANGES CASE STUDY FROM THE CZECH REPUBLIC". En 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/be5.v1/s20.002.

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Informes sobre el tema "Floodplain ecology"

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Schad, Aaron, Daniel Allen, Lynde Dodd, Ricardo Luna, Jacob Kelly, Kristina Hellinghausen, Nathan Harms, Gary Dick y Yaretzy Charo. Aquatic ecosystem restoration in the Texas Western Gulf Coast Plain / Lower Rio Grande alluvial floodplain ecoregion : Resaca Boulevard Resaca Section 206—vegetation community adaptive management. Engineer Research and Development Center (U.S.), septiembre de 2023. http://dx.doi.org/10.21079/11681/47559.

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As part of the US Army Corps of Engineers (USACE) Continuing Authorities Program (CAP), Section 206 projects focus on restoring aquatic habitats for the benefit of fish and other wildlife. From 2017–2021, USACE Engineer Research and Development Center–Environmental Laboratory researchers in the Aquatic Ecology and Invasive Species Branch (ERDC-EL EEA) at the Lewisville Aquatic Ecosystem Research Facility (LAERF) collaborated with USACE Galveston District, The Nature Conservancy, US Fish and Wildlife Service, National Park Service, and local nonfederal sponsors—Brownsville (Texas) Public Utility Board and the City of Brownsville—to study restoration methods on former, naturally cut-off, channels of the Lower Rio Grande River. These aquatic ecosystems, locally termed “resacas,” are home to endemic plants and animals and are thus an important natural resource of national interest. This technical report documents the planning, design, construction, monitoring, and adaptive management activities throughout the Resaca Boulevard Resaca Section 206 Aquatic Ecosystem Restoration project. Methods and results for invasive species management—primarily Brazilian peppertree (Schinus terebinthfolia)—and aquatic and riparian vegetation establishment in endemic Texas ebony resaca forest, subtropical Texas palmetto woodland, and Texas ebony/snake-eyes shrubland habitats are discussed.
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