Download or read book Watershed Hydrology written by Vijay P. Singh and published by Allied Publishers. This book was released on 2003 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Urbanization on Stream Ecosystems written by and published by . This book was released on 1981 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of urban development on stream ecosystems in nine metropolitan study areas across the United States written by James F. Coles and published by . This book was released on 2012 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Urban Development on Stream Ecosystems in Nine Metropolitan Study Areas Across the United States written by James F. Coles and published by Geological Survey (USGS). This book was released on 2012-01-01 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Urbanization on Stream Ecosystems written by Larry R. Brown and published by . This book was released on 2005 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the world's population continues to grow, the continual development of riparia areas stresses stream ecosystems. These collected articles aim to provide researchers, aquatic resource managers, land use planners and others with the results of recent studies of the effects of urbanization on stream ecosystems. By presenting fifteen case studies and five regional comparisons, the editors of these proceedings hope to help protect streams form the damages of what they recognize as inevitable urbanization. Foci of the studies include the effects of urbanization on biological diversity and populations, geology, hydrology, and economics.

Download or read book Effects of Urbanization on Stream Ecosystems written by Carol Anne Couch and published by . This book was released on 2002 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Urbanization on Stream Ecosystems written by Gwen Maria White and published by . This book was released on 1996 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Urbanization on Stream Ecosystems in the South Platte River Basin Colorado and Wyoming written by Lori A. Sprague and published by . This book was released on 2006 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Urbanization on Stream Ecosystems in the Willamette River Basin and Surrounding Area Oregon and Washington written by and published by . This book was released on 2008 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Urbanization on Stream Ecosystems in the Williamette River Basin and Surrounding Area Oregon and Washington written by and published by . This book was released on 2008 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Urban Development on Stream Ecosystems Along the Front Range of the Rocky Mountains Colorado and Wyoming written by Lori A. Sprague and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterizing the Effects of Urbanization on Stream Biota Using a Trait based Approach written by Piata Marques and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We live in an increasingly urban world and ecologists are being called upon to provide thorough information on the effect of urbanization on ecosystems. However, urban ecology has historically focused almost exclusively on describing changes in species richness. Although this has been important as a first characterization of the effect of urbanization, the focus on describing species richness has restricted our understanding of the mechanisms determining ecological patterns and processes in cities. In this thesis, I apply a trait-based approach to a widespread urban invasive species, the guppy, Poecilia reticulata, in order to explore the mechanisms through which urbanization can affect reproductive and feeding ecology traits of the stream biota. I first review studies that use trait-based approaches in stream ecosystems and develop an intraspecific trait framework that can be used to link urbanization to changes in traits of the stream biota. Then, I combine this framework with existing information on trait evolution of guppies in their non-urban, native range in Trinidad, to explore the effect of urbanization on guppy life history related traits and population density in Brazil. Next, building on a study of drivers of diet and trophic morphology in Trinidadian guppies, I use a trait-based framework to explore the effect of urbanization on guppy diet and feeding morphology in Brazil. My review shows that intraspecific trait approaches in urban streams are rare, but have the potential to provide a mechanistic understanding of the effects of urbanization on stream biota. By using an intraspecific trait approach, I show that urbanization increases guppy body length, increases fecundity and improves condition. Concurrent investment in reproduction and somatic tissues suggests that urbanization relaxes life history traits trade-offs in guppies. Urban guppies also attain far higher densities than non-urban guppies. These changes in traits and populations are related to the large amount of high-quality food (i.e. chironomids) available for guppies in urban streams. Urban-induced changes in traits enhance guppy invasive potential. By studying guppies in Trinidad, I have found that each population is composed of two resource-use phenotypes with distinct diets and gut morphology (carnivorous guppies with short guts and detritivorous/algivorous guppies with long guts). The frequency of each resource-use phenotype appears to be determined by guppy density: low density appears to increase the frequency of the carnivorous phenotype. Guppy populations in Brazil are also composed of two resource-use phenotypes, and the existence of these phenotypes is related to the variation in individual feeding morphology (i.e. cranium shape) that affect feeding efficiency. Neither density nor urbanization appears to shift the distribution of the two resource use phenotypes. However, urban guppies have larger and wider crania, thus a more efficient insect feeding morphology, than non-urban guppies. Overall my study suggests that consumption of chironomids is important for the success of guppies in urban streams, and it is possible that similar mechanism also facilitates the success of other urban dwellers. My study also highlights the power of intraspecific trait approaches for understanding the ecology urban dwellers. Such knowledge can help us refine and advance ecological theories to better predict future ecological change in an increasingly urbanized world.

Download or read book Dividing the Waters written by Sandra Postel and published by . This book was released on 1996 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physical Chemical and Biological Responses of Streams to Increasing Watershed Urbanization in the Piedmont Ecoregion of Georgia and Alabama 2003 written by Mark Brian Gregory and published by . This book was released on 2007 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Urban Stormwater Management in the United States written by National Research Council and published by National Academies Press. This book was released on 2009-03-17 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.

Download or read book Sediment in Streams written by Thomas F. Waters and published by . This book was released on 1995 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation of the Effects of Recreational Land Use on the Stream Ecosystem of an Urban fringe Watershed written by Jennifer J. Cornell and published by . This book was released on 2013 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much research has been conducted on stream ecosystems directly affected by urbanization. There has been, however, little investigation in environments that experience indirect effects from urbanization; such has areas influenced by recreational use. Changes in intensity of recreation that take place in the urban fringe may have important consequences for the structure and function of stream ecosystems in these watersheds. To investigate this possibility, I first conducted a paired watershed study of the City Creek Management Area and Gibson Jack Recreation Area both of which are located in the urban fringe of the city of Pocatello, Idaho, in south-east Idaho, USA. Although similar in most respects, the former has higher intensity recreational use than the latter (e.g., nearly 4X more trail length, a history of motorized use, an access road in close proximity to the stream, and greater numbers of users). I hypothesized that high intensity recreational land use increases the delivery of fine sediment to streams, and, subsequently, causes change in ecosystem structure and function. Based upon a year of monitoring, City Creek carried 8X higher average sediment concentration as well as much more variation than did Gibson Jack Creek. City Creek exported more than half of the sediment load calculated for Gibson Jack Creek, even though it had only 1/10 of its discharge. The substrate of City Creek was also twice as embedded with fine sediment compared to Gibson Jack Creek. As measures of ecological structure, City Creek's macroinvertebrate community had lower richness, abundance, and biomass than did that of Gibson Jack Creek. Comparing ecosystem functions, City Creek had concentrations of dissolved organic carbon that were a third higher than Gibson Jack Creek, carried 6X the concentration of total phosp