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 16 of 16 for “"bald eagles"”.
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The effect of human activities on the distribution and abundance of the Jordan Lake - Falls Lake bald eagles
I studied the effect of human activities on bald eagle (Haliaeetus leucocephahus) distribution and abundance at Jordan Lake and Falls Lake, North Carolina in 1986 and 1981. Eagles used most of the area available on Jordan Lake, but 63% of the use occurred in the northern 25% of the lake. Eagle use …
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Movements and home range size of bald eagles from Glacier Bay National Park and Preserve, Alaska: with an analysis of satellite telemetry
… of 23 adult and 7, 8-10 week old nestling bald eagles captured in Glacier Bay National Park and Preserve, Alaska. I estimated locations by homing and satellite telemetry. During the breeding season, the distances adult eagles moved from successful, unsuccessful, and mixed-success nests were …
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Foraging ecology of bald eagles on the northern Chesapeake Bay with an examination of techniques used in the study of bald eagle food habits
… and determined food habits of nonbreeding bald eagles (<i>Haliaeetus leucocephalus</i>) on the northern Chesapeake Bay, as a preliminary step toward examining food-base effects on bald eagle distribution and abundance. To correctly interpret our food habits results, we first examined biases …
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Re-Establishing Bald Eagle and Osprey Breeding Populations in South Dakota Through Hacking: A Feasibility Study
Bald eagles (Haliaeetus leucocephalus) and ospreys (Pandion haliaetus) historically nested in South Dakota, but until 1991 neither species had nested in the state for > 100 years. In 1991, an osprey pair nested in the Black Hills near Pactola Reservoir, and in 1993, a bald eagle pair nested along …
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Bald Eagle Foraging Habitats Along the James River in Missouri: Protection From Human Developments
… have been responsible for the decline of bald eagles. This thesis analyzes fish samples for contaminants and uses Landsat Thematic Mapper remote sensing data to determing preferred bald eagle foraging habitats along the James River in Missouri. Fish samples collected were tested for 12 …
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Assessment of a voluntary nonlead ammunition outreach program on midwestern national wildlife refuges
… Midwestern, United States (U.S.) demonstrated bald eagles have greater risk of lead poisoning by ingesting lead bullet fragments in gut piles and unretrieved carcasses related to deer hunting. In response, U.S. Fish and Wildlife Service (USFWS), Region 3 established an outreach program during …
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Effects of food on bald eagle distribution and abundance on the northern Chesapeake Bay: an experimental approach
Availability of dead fish to bald eagles (Haliaeetus leucocephalus), prey preferences of bald eagles, and the effects of food on their distribution and movements on the northern Chesapeake Bay were examined from April 1988-July 1989. Dead fish surveys were conducted, by boat, to monitor dead fish …
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A Comparison of the Pectoral Spines in Virginia Catfishes
… allowing determination of catfishes eaten by bald eagles (Haliaeetus leucocephalus) using spines collected near their nests. Bald eagles ate blue catfish (60%), channel catfish (27%), white catfish (9%), brown bullheads (4%) and yellow bullheads (0.5%). Madtom and flathead catfish were not …
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The influence of perch tree distribution and abundance on bald eagle distribution on the northern Chesapeake Bay, Maryland
… shoreline is important perching habitat for bald eagles (Haliaeetus leucocephalus). Bald eagles hunt, feed and loaf on shoreline perches. I measured trees suitable for bald eagle perches along the northern Chesapeake Bay during 1990-1991 to determine the influence of shoreline perch tree …
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Bald eagle habitat use on B. Everett Jordan Lake and Falls Lake, North Carolina
… preferences of a nonbreeding population of bald eagles in North Carolina during 1986 and 1987. I characterized roosting habitat at 2 scales; those of forest stands and individual roost trees. Eagles chose roost areas that were less dense, had less canopy cover, were closer to forest edges, …
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Evaluation, assessment, and determination of risk to high trophic level piscivores in the Mid-Atlantic: A spatial, biological, and comparative case study of mercury in Virginia bald eagle populations
… the concentrations of mercury found in juvenile bald eagles (Halieattus leucocephallus) as a function of the physical and anthropogenic landscape. Due to it's location in the food chain this species is susceptible to a wide range of contaminants (xenobiotics), particularly those that …
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Prevalence and Identity of Tissue Cyst Forming Apicomplexan Parasites in the Muscles of Raptors
… of great horned owls (Bubo virginianus), golden eagles (Aquila chrysaetos), and bald eagles (Haliaeetus leucocephalus) with encephalitis in rehabilitation centers in Indiana, Minnesota, and Virginia using PCR. DNA of S. calchasi has been found in CNS tissue of several species of birds suffering …
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The Impact of Wind Turbines on the Distribution of Wintering and Migrating Raptors
… species – Northern Harrier (Circus hudsonicus), Bald Eagle (Haliaeetus leucocephalus), Red-tailed Hawk (Buteo jamaicensis), Rough-legged Hawk (Buteo lagopus), Snowy Owl (Bubo scandiacus), or American Kestrel (Falco sparverius) – changed their distributions in response to wind turbines. Similarly, …