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 9 of 9 for “"cavity nesting birds"”.
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Vocalizations influence roost-site selection in overwintering cavity-nesting birds in Eastern Washington
<p>Primary cavity-nesting birds are keystone species because the annual tree cavities they excavate become critical habitat for other species. In eastern Washington, most primary cavity-nesting birds are year-round residents. They increase overwinter survival by night roosting in cavities and …
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Nest-site resources for cavity-nesting birds in the southern Allegheny Mountain forests of West Virginia
Cavity-nesting birds may be negatively impacted by a lack of proper nesting sites. Southern Allegheny Mountain forests of West Virginia are unique due to the juxtaposition and diversity of forest cover types. Management must focus on monitoring wildlife population levels as well as habitat …
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Tree cavity abundance and nest site selection of cavity nesting birds in a natural boreal forest of West Khentey, Mongolia
Höhlenbrütende Vogelarten stellen einen bedeutenden Anteil vieler Waldvogelgemeinschaften. Wegen ihrer engen Bindung an entsprechende Habitatstrukturen sind sie sehr empfindlich gegenüber Veränderungen der Waldstruktur. Daher werden sie als Indikatoren für Habitatqualitäten und Vogeldiversität …
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Estimating the Impact of House Sparrows on Eastern Bluebird Reproductive Success Across an Urban Gradient
… North America, where it usurps nests of native cavity-nesting birds, frequently destroying eggs, and killing nestlings and adults. This two-year study investigated habitat effects as well as the impact and management of HOSPs on the reproductive success in Northeast Ohio of the Eastern Bluebird …
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Biology and conservation of the endangered Bahama Swallow (Tachycineta cyaneoviridis)
… cyaneoviridis) is an endangered secondary cavity-nester that only breeds on three islands in the northern Bahamas: Abaco, Grand Bahama, and Andros. I investigated questions related to population size and distribution, genetic diversity and population structure, breeding biology, and …
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BREEDING SEASON AVIAN COMMUNITY COMPOSITION AND PREY AVAILABILITY IN EUCALYPTUS AND SLASH PINE PLANTATIONS OF SOUTHWESTERN LOUISIANA
… an indicator of prey availability for breeding birds in eucalyptus plantations. I compared these results to slash pine (<em>Pinus elliottii</em>) plantations of similar age and also of similar height in southwestern Louisiana during bird breeding seasons of 2014 and 2015. I also compared avian …
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The Causes and Consequences of Complex Behavioral Trait Variation in a Resident Montane Bird
… within individuals across years, that adult birds on average performed better than first-year birds, and that members of a first-year cohort that performed worse on a spatial cognitive task were less likely to survive than those with better performance. This is some of the first evidence of …
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PILOT STUDY ON THE PREDICTION OF HEART ROT IN APPARENTLY SOUND WESTERN LARCH
Since many cavity-excavating birds require trees with heart rot, managers routinely emphasize decayed trees in their snag retention prescriptions. Where too few trees are present with obvious indicators of decay, apparently sound trees are left to meet retention objectives. These trees may also …
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PILOT STUDY ON THE PREDICTION OF HEART ROT IN APPARENTLY SOUND WESTERN LARCH
Since many cavity-excavating birds require trees with heart rot, managers routinely emphasize decayed trees in their snag retention prescriptions. Where too few trees are present with obvious indicators of decay, apparently sound trees are left to meet retention objectives. These trees may also …