Global ETD Search
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 33 for “"habitat ecology"”.
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Habitat ecology of the Painted Bunting on the Ozark Plateau
… purpose of this study was to determine the habitat requirements of the Painted Bunting (Passerinaciris) in southern Missouri and northern Arkansas. The Painted Bunting reaches the northern edge of its breeding range in southern Missouri. The presence of the Mark Twain National Forest in this …
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The edge effect: lateral habitat ecology of an alluvial river flood plain
We describe the ecology of off-channel or "lateral" habitats as key attributes of the Shifting Habitat Mosaic (SHM) of a river flood plain at the Nyack Research Natural Area in northwestern Montana. Our working hypothesis was that lateral habitats are important to the cycling of energy and …
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Short-term effects of wildfire on Sierra Nevada bighorn sheep habitat ecology
We studied changes in vegetation and habitat selection by endangered Sierra Nevada bighorn sheep (Ovis candensis sierrae; hereafter Sierra bighorn) for 2 years following wildfire on winter ranges in eastern California. We hypothesized that wildfire would change both forage availability and …
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The edge effect: lateral habitat ecology of an alluvial river flood plain
We describe the ecology of off-channel or "lateral" habitats as key attributes of the Shifting Habitat Mosaic (SHM) of a river flood plain at the Nyack Research Natural Area in northwestern Montana. Our working hypothesis was that lateral habitats are important to the cycling of energy and …
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Short-term effects of wildfire on Sierra Nevada bighorn sheep habitat ecology
We studied changes in vegetation and habitat selection by endangered Sierra Nevada bighorn sheep (Ovis candensis sierrae; hereafter Sierra bighorn) for 2 years following wildfire on winter ranges in eastern California. We hypothesized that wildfire would change both forage availability and …
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Ruffed grouse (Bonasa umbellus) habitat ecology in the central and southern Appalachians
… low in Appalachian forests, possibly because low habitat quality negatively affects survival, condition, and reproduction. Through the Appalachian Cooperative Grouse Research Project (ACGRP) researchers tracked >1500 radioed grouse at 10 study sites (1996__2002). To improve our understanding of …
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The Habitat Ecology of Bog Turtles (<i>clemmys Muhlenbergii</i>) in Southwestern Virginia
… activity, spatial distributions of animals, and habitat selection. The techniques I used in this study were as follows: distance measurements between consecutive locations, home range estimators (Minimum Convex Polygon [MCP] and cluster analysis), compositional analysis of habitat selection, and …
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Habitat Ecology, Trophic Interactions, and Distribution of Endangered Himalayan Musk Deer in the Nepal Himalaya
… dissertation seeks to explore and assess the habitat selection, trophic interactions and distribution of Himalayan musk deer. Chapter one deals with seasonal diet analysis of musk deer along with the overlap in consumption with livestock during summer. Microhistological technique was employed …
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Population and habitat ecology of the river cooter (Pseudemys concinna) in the New River Gorge National River, W.V.
During 1984-85 I investigated population ecology and habitat relationships of river cooters (Pseudemys concinna) in the New River Gorge National River (NRGNR), West Virginia. Cooter colonies occurred in 3 pool habitats characterized by slow current velocities (x=0.22m/s), shallow water (0-2m), …
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Bat Habitat Ecology Using Remote Acoustical Detectors at the Army National Guard Maneuver Training Center - Fort Pickett, Blackstone, Virginia
… For these reasons I have set out to establish habitat use patterns, detection probabilities, spatial and temporal occupancy, and investigate species interactions. This thesis is broken down into three distinct chapters each intended to be a stand-alone document. The first establishes the basic …
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Habitat ecology of the native subtidal snail, Lacuna vincta, in the Gulf of Maine and the impact of two introduced species
… negative impact on L. vincta. The preferred habitat and food of snails in the kelp canopy was reduced by bryozoan coverage and/or replacement of kelp by C. fragile ssp. tomentosoides . The overgrowth of M. membranacea on kelp blades decreases the available grazing spaces and affects the …
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Aspects of spatial and habitat ecology of multiple Anopheles species (Diptera: Culicidae): malaria vectors in the highlands and foothills of Ecuador
… underlines the importance of the study of the ecology of highland mosquito vectors of malaria. Since the incidence of malaria is limited by the distribution of its vectors, the purpose of this PhD thesis was to examine aspects of the ecology of Anopheles mosquitoes in the Andes of Ecuador, …
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SAGE-GROUSE AND ENERGY DEVELOPMENT: INTEGRATING SCIENCE WITH CONSERVATION PLANNING TO REDUCE IMPACTS
… land use change requires knowledge of which habitats are selected at landscape scales, where those habitats are located, and how species ultimately respond to anthropogenic disturbance. I assessed sage-grouse (Centrocercus urophasianus) large scale habitat ecology and response to energy …
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SAGE-GROUSE AND ENERGY DEVELOPMENT: INTEGRATING SCIENCE WITH CONSERVATION PLANNING TO REDUCE IMPACTS
… land use change requires knowledge of which habitats are selected at landscape scales, where those habitats are located, and how species ultimately respond to anthropogenic disturbance. I assessed sage-grouse (Centrocercus urophasianus) large scale habitat ecology and response to energy …
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Ecology of Two Rare Amphibians of the Gulf Coastal Plain
… suite of amphibian species. Degradation of habitat has been considered by many to be a major part of amphibian declines, however amphibian declines are complex and in many cases multiple factors are occurring in concert. My dissertation research examined aspects of habitat ecology and …
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Physiological and behavioral responses, and their variability, in squid, Doryteuthis pealeii, embryos and paralarvae reared under chronic ocean acidification
… of species that use the nearshore as nursery habitat. The inshore longfin squid, Doryteuthis pealeii, plays an important role in the northwest Atlantic food web, and annually lays its eggs in the nearshore benthos during summer. This thesis sought to characterize morphological, physiological, …
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The Tortoise and the Landscape: Examining the Habitat, Daily Movement, Home Range Size, and Thermal Ecology of the Texas Tortoise (Gopherus berlandieri)
1. Towards and exclusionary perspective on habitat as a more effective way to understand distribution of generalist species in nature. The association between an organism and its habitat is one of the most basic components of ecological knowledge, particularly as it relates to where we find the …
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Habitat suitability modeling for Lontra canadensis in east Tennessee
… in effectively managing and conserving wildlife habitats. With environmental and landscape data, we can determine and assign priority areas for conservation efforts targeting the North American river otter (Lontra canadensis) in east Tennessee and beyond. The focus of the present study is the …
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The impact of wildfire on avian communities: exploring habitat associations two decades after fire
… on the landscape to maximize suitable habitat for the greatest number of species, especially as it pertains to preserving adequate proportions of low-severity patches for forest-associated species who require intact canopy cover. However, large high-severity patches as the dominant …
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Habitats online: A collaborative telecommunications project
… collaborative telecommunications project called Habitats Online. Review of the literature indicates that collaborative telecomunication projects, like Habitats Online, engage students in rich learning experiences and establish a network of future citizens who have a greater understanding of our …
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