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 “"fledgling survival"”.
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Post-fledging ecology of an endangered species: The golden-cheeked warbler
… life-stages of an individual. I investigated the survival, behaviors and habitat use of endangered Golden-cheeked Warbler (Setophaga chrysoparia) fledglings in Texas. I monitored nests until fledging and tracked fledglings for at least four weeks after leaving the nest. I estimated survival rates …
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Pre- to post-fledging carryover effects and the post-fledging ecology of the Dickcissel (Spiza americana)
… avian life cycle. Past research has identified survival during this stage as a key component in population growth and maintenance of avian species. Therefore, understanding causes of variation in fledgling survival may be of critical importance in conserving avian biodiversity. I examined the …
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Grassland bird associations in a managed agricultural matrix
… grassland bird nest ecology, Dickcissel fledgling ecology, and Northern Bobwhite landscape-level associations. Strip-transect surveys showed that Red-winged Blackbird (43%) and Dickcissel (42%) dominated bird communities, but other abundant species included Eastern Meadowlark, Indigo …
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Ecology and conservation of the Såli (Micronesian Starling, Aplonis opaca) in the presence of the invasive Brown Treesnake (Boiga irregularis) in Guam, Mariana Islands
… that although Såli adults appear to have high survival, their fledglings are highly vulnerable to predators. My research focused on refining our understanding of how BTS are impacting Såli ecology and survival, and how BTS management can benefit Såli conservation. In my first chapter, I …
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Factors affecting foraging by breeding farmland birds
… was used to monitor adult song thrushes and fledgling skylarks. Skylark nest density was highest in set-aside and lowest in crops, yellowhammer nest density was greatest in herbaceous vegetation and field margins whilst song thrush nest density was greatest in hedgerows and woodland. Birds …
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Population demography of lark buntings: post-fledging survival, fecundity, and breeding decisions
… reproductive productivity and juvenile survival on the breeding grounds are among the possibilities. To assess population declines, direct and reliable estimates of survival, fecundity, and dispersal are required. Consequently, I estimated demographic parameters (i.e., post-fledging …
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POPULATION DYNAMICS OF SPECIES RECOVERY: MULTISCALE DEMOGRAPHY IN RESTORED HABITATS
… full-season reproductive productivity and survival based on the survival of 341 nests and 258 fledglings in two regions in Pennsylvania along with previously published data. Occupancy data were analyzed in program R (package unmarked) using static and dynamic occupancy models including …
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Using marsh bird nest survival and post-fledging habitat use and survival to inform wetland management
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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The ecology of the Red-vented Bulbul in Fiji.
… have an extended period of parental care of fledglings and are unlikely to raise more than one brood in a season. Fledgling survival appears to be good and the annual recruitment rate is probably about 30%, although in one year it was considerably less. The moult of the Bulbul in Fiji is …