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.
Results
Showing 1 to 12 of 12 for “"American Kestrel"”.
-
Ecological studies on the American kestrel (Falco sparverius) in east-central Indiana
The American kestrel (Falco sparverius) population of both Harrison and Washington Townships, Delaware County, east-central Indiana, showed a decline from December, 1985 to March, 1986, stabilization, and then a rise in June and July, 1986. Surveys reflect a larger kestrel population in Harrison …
-
Toxic effects of dietary methylmercury on immune system structure, function, and development in the American kestrel (Falco sparverius)
… (MeHg) were assessed in adult non-breeding male kestrels, female kestrels during egg laying, and nestling kestrels. Immunological endpoints included cell-mediated immunity (CMI) using the phytohemagglutinin (PHA) skin-swelling assay and antibody-mediated immune function using the sheep red blood …
-
Survey of Reproduction of the Southeastern American Kestrel (Falco Sparverius Paulus) in Electrical Transmission Towers in South-Central Georgia
… of the rare southeastern subspecies of the American kestrel, Falco sparverius paulus, which was found to be breeding in the hollow cross-arms of the 230 kV electrical transmission towers between the Offerman substation in the east, to Plant Mitchell (Putney), in the west, in south-central …
-
Use of Eastern South Dakota Shelterbelts By Nesting Birds of Prey
… (1979-1980). Species observed were the American kestrel (Falco sparverius), Swainson’s hawk (Butwo Swainsoni), red-tailed hawk (Buteo jamaicensis), great horned owl (Bubo virginianus) and screech owl (Otus asio). Density figures for 1979 and 1980 were 0.60 and 0.65 birds/km², …
-
Reproductive Success of American Kestrels (<em>Falco sparverius</em>) Nesting in Boxes along an Interstate in Northeastern Tennessee.
… box programs provide supplemental nest sites for American Kestrels, <em>Falco sparverius</em>. When the availability of nest sites is a limiting factor, the addition of nest boxes can increase local breeding populations. These programs also facilitate the collection of data on breeding …
-
Influence of Predation on Least Tern and Piping Plover Productivity Along the Missouri River in South Dakota
… and site observations indicated that American kestrels (Falco sparyerius), American crows (Corvus brachyrhynchos), raccoons (Procyon lotor), great horned owls (lma.Q yirginianus), and mink (Mustela yison) were having a significant effect on the survival of piping plover and least tern …
-
Reproductive Success of Southeastern American Kestrels (Falco Sparverius Paulus) Nesting in 230Kv Transmission Towers and Alternative Nest Structures in South-Central Georgia
… of the threatened southeastern subspecies of the American Kestrel (Falco sparverius paulus). Numbers of Southeastern American Kestrels are estimated to have declined by more than 80% over the last fifty years in the southeastern United States. In Georgia, populations have nearly disappeared below …
-
The Impact of Wind Turbines on the Distribution of Wintering and Migrating Raptors
… (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 distributions of different age classes of Bald Eagle in response to wind turbines. Changes in overall …
-
Perceived Predation Risk And The Responses Of Adult And Nestling Tree Swallows (tachycineta Bicolor)
… chipmunk (Tamias striatus), a study skin of an American Kestrel (Falco sparverius), and a rubber model of a black rat snake (Pantherophis obsoletus), as well as a study skin of an American Robin (Turdus migratorius) used as a control. Experiments began at nests when nestlings were 12 or 13 days …
-
Vocal responses of adult Eastern Bluebirds (Sialia sialis) to potential nest predators and the behavioral responses of nestlings
… <em>(Tamias striatus)</em>, a study skin of an American Kestrel <em>(Falco sparverius)</em>, and a rubber model of a black rat snake <em>(Pantherophis obsoletus)</em>. My control was a study skin of a Mourning Dove <em>(Zenaida macroura)</em>. To assess responses during 3-min trials, predators …
-
Factors Associated with Space Use and Reproductive Success of American Kestrels in Northern Virginia, USA
… of species. My thesis evaluated the space use of American kestrels (Falco sparverius), a species of conservation concern, and tested whether their movement behavior was associated with sex-specific parental roles, local resource availability, and central-place foraging theory as a framework for …
-
Vocalizations Of Adult American Kestrels (falco Sparverius): Effect Of Breeding Stage, Sex, And Context On Call Use And Characteristics
<p>American Kestrels (Falco sparverius) are small falcons with a vocal repertoire known to consist of three different vocalizations: whine, chitter, and klee calls. However, the characteristics and contextual use of these calls have not been quantified. To determine the characteristics of these …