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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"Habitat assessment"”.
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Site and species specific wildlife habitat assessment
… a sensitivity analysis, conducted on a wildlife habitat analysis system previously described. This was designed to mathematically test the effects of changing various parameters used in the system on the calculation of specific indices that this system measures. Chapters 2 and 3 represent …
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Population Estimates, Demography, and Habitat Assessment of the Pearl River map turtle (Graptemys pearlensis) in the Pearl River Drainage of Mississippi
… of Mississippi. A secondary goal was to describe habitat associated with <em>G. pearlensis</em> abundance. We captured a total of 186 <em>G. pearlensis</em> across 53.2 rkm. Our drainage wide population estimate for <em>G. pearlensis</em> was 22.4 turtles per rkm, although site abundance varied …
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Management Planning and Habitat Modeling for Wild Turkeys (Meleagris Gallopavo Silvestris) in Virginia
… and had no modern means to assess turkey habitat. My objectives were to (1) identify stakeholders in management of wild turkeys in Virginia, assess their attitudes and opinions regarding turkey management, and incorporate that knowledge in developing a management plan for wild turkeys in …
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A multi-scaled approach to vegetation and landscape assessment in the Barents region: Reindeer habitat in a climate of change
… the landscape and its relationships to reindeer habitat and climate change through multi-scale assessments, and creates the potential for analysing consequences of change. Three primary scales of vegetation analysis and their limitations, uses and value are compared within the Barents region. …
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NORTHERN RIVER OTTER POPULATION ASSESSMENT AND CONNECTIVITY IN WESTERN MONTANA
… in western Montana and Idaho, and produce a habitat assessment and population estimate for otters in the UCFR. I used genotypic data from otter tissue samples collected in Montana and Idaho to determine otter population structuring and connectivity. I found no evidence that otter movements …
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NORTHERN RIVER OTTER POPULATION ASSESSMENT AND CONNECTIVITY IN WESTERN MONTANA
… in western Montana and Idaho, and produce a habitat assessment and population estimate for otters in the UCFR. I used genotypic data from otter tissue samples collected in Montana and Idaho to determine otter population structuring and connectivity. I found no evidence that otter movements …
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Home Range and Provisioning Use of Semi-Free-Ranging Ringtailed Lemurs (Lemur Catta)
… and provisioned daily. There has been no assessment of the effects of provisioning or seasonal dependence on provisioning to date. Ringtailed lemur troop home ranges and use of provisions were quantified to examine seasonal patterns and changes in relation to habitat quality of the home …
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Ecohydrologic Indicators of Low-flow Habitat Availability in Eleven Virginia Rivers
… uses including ecosystem services and aquatic habitat. A standard method of evaluating impacts of alternative water management scenarios on instream habitat is Instream Flow Incremental Methodology (IFIM). The primary outputs of IFIM studies are: 1) habitat rating curves that relate habitat …
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Geomorphic Assessment and Flow Modeling of Pearl Darter (Percina aurora) Habitat in the Pascagoula River Watershed
… is important to understanding resident species habitat. Geomorphology is a known, but often neglected factor in habitat assessment for freshwater fishes. A crucial feature commonly seen in alluvial stream systems are sandbars, which are dynamic and variable sediment structures that are known to …
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Population Distribution and Demographics of Smallmouth Bass (Micropterus dolomieu) in Silver Creek, Madison County, Kentucky
… run was recorded across transects as the microhabitat. Kentucky Division of Water's rapid habitat assessment was used to assess the habitat within the stream and the riparian vegetation surrounding the stream. The majority of smallmouth bass collected in Silver Creek were collected in runs and …
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Defining flows to protect instream biota : a critique of the instream flow incremental methodology and the development of a hierarchical habitat-based approach, using the pennant-tailed catlet, Chiloglanis anoterus in the Marite River, South Africa
… of methods that attempts to do this are known as habitat-assessment approaches. They focus specifically on understanding how changes in river flow affect the quantity of physical instream habitat. The most widely used of these is the Instream Flow Incremental Methodology (lAM) and it's associated …
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Effects of Cattle Exclusion on Stream Habitat in the Shenandoah Valley, Virginia
… to improve riparian vegetation, in-stream habitat, and composition of aquatic organisms. Yet research on the effects of cattle exclusion have yielded conflicting results. The goal of this study was to examine relationships between physical habitat and benthic macroinvertebrate populations …
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A Survey of the Fishes and Habitat of the Cheyenne River in South Dakota
… only a few locations and did not record any habitat or species abundance data. I sampled fish and habitat at nine reaches between Angostura Dam and Lake Oahe on the mainstem Cheyenne River during the summer months of 1996 and 1997. Thirty species representing ten families were collected. The …
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Ecological assessment of salt ponds on St. John, USVI
… understood. This thesis describes an ecological assessment performed to provide baseline information on salt ponds on St. John, U.S. Virgin Islands, to recommend a range of indicators to determine the water quality of a salt pond, and to suggest areas of further research to help maintain the …
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Evaluating Ecological Influences of Altered Flow Regimes Using Two- and Three-Dimensional Hydrodynamic Models
… boulders and large woody debris provide unique habitat for many aquatic organisms. Numerical modeling of the flow structures surrounding these obstructions is challenging, yet it represents an important tool for aquatic habitat assessment. Moreover, efforts for modeling the morphologically and …
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Modeling Spatial Distribution and Habitat Associations for Juvenile Pallid Sturgeon (Scaphirhynchus albus) in the Missouri River
Monitoring and assessment of the endangered pallid sturgeon Scaphirhynchus albus population is essential to the recovery of the species. Movement and distribution of pallid sturgeon is generally documented using radio telemetry methods. However, because of the time and cost involved in tracking …
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Ecology of Glacial Relict Fishes in South Dakota's Sandhills Region
… across North America during the last century as habitat degradation, stream fragmentation and introductions of nonnative species have led to numerous extinctions, extirpations and altered distributions. Insufficient information regarding imperiled species often results in reactive, rather than …
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Lower Scotts Creek Floodplain and Habitat Enhancement Project
… overwinter mortality due to lack of refuge habitat is the primary factor limiting salmonid production. Instream rearing habitat may also be limiting, especially during drought years. The legacy effects of historic land use practices, including dredging, wood removal, and the construction of …
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