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 7 of 7 for “"red-tailed hawk"”.
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Landscape dynamics from 1990--2010 and the human to apex predator (red-tailed hawk) relationship on La Gonave, Haiti
… 1990--2010. Five land cover classes were considered: Agriculture, Forest/Dense Vegetation (DV), Shrub, Barren/Eroded, and Nonforested Wetlands. Overall image classification accuracy was 87%. The area percent change was -39.7, -22.7, 87.4, -7.0, 10.2%, for the respective classes. Landscape pattern …
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Use of Eastern South Dakota Shelterbelts By Nesting Birds of Prey
… olive (Elaeagnus angustifolia), and eastern red cedar (Juniperus scopulorum). Major shrub species included honeysuckle (Lonicera tatarica) and lilac (Syringa vulgaris). Ninety-eight raptors were observed on the study area over the 2 breeding seasons investigated (1979-1980). Species observed …
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Behavioral Responses By Cottonmouths (Agkistrodon Piscivorus) To Chemical And Visual Predator Cues
<p>Predator detection and assessment of predation risk have important survival consequences for animals. However, responses to predatory threats can vary with different stimuli. Chemical cues are important for predator recognition but visual cues may elicit defensive responses. Cottonmouths …
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Raptor Use of the Idaho National Engineering Laboratory
<p>Raptors are high trophic-level predators, and thus sensitive to environmental change. I conducted a basic ecological study of raptors using the Idaho National Environmental Laboratory (INEL), in southeastern Idaho, between 1991 and 1993 to assess effects of human activity on the site. Results …
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Behavioral Differences Between Urban and Rural American Crows (Corvus brachyrhynchos)
… long been a topic of concern, but has been hampered by a lack of empirical evidence focused on animal behavior. The current study was designed to explore behavioral differences between urban and rural American crows (<em>Corvus brachyrhynchos</em>) by installing baited perches in urban and rural …
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Wild American crows use funerals to learn about danger
… inform future resource use, infer novel predators, and that this behavior is not shared by another urban bird: the rock pigeon (Columba livia). Novel humans paired with a dead crow, a red-tailed hawk (Buteo jamaicensis), and a hawk with a dead crow all evoked mobbing and decreased foraging …
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The Impact of Wind Turbines on the Distribution of Wintering and Migrating Raptors
… 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, we found no evidence of changes in the …