Factors contributing to nest predation within habitat of the Golden-checked Warbler, Travis County, Texas /
(Dendroica chrysoparia), yet relatively little is
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1996.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | (Dendroica chrysoparia), yet relatively little is 0.001) among study sites, but failed to explain Avian predator abundance varied significantly (P = cheeked Warbler nests, comparison of the level of contributed to predation levels to a greater extent contributing to the decline of Golden-cheeked Warblers county, suggesting local habitat features may have cristata), and Texas rat snake (Elaphe obsolete). The difference (P = 0.04). There does not seem to be a differences in predation levels among sites. Using a edge than in the 100-m habitat interior. Predation forest interior tracts or near habitat edges. A total greater level of nest predation at the 10-m habitat greater than interior nests; however, only the first habitat-patch size also may contribute to levels of In April 1994 and 1995, 1 placed artificial nests, Jay (Aphelocoma californica), Blue Jay (Cyanocitta known of the extent of nest predation on this species. level of nest predation for either year of my study. levels of predation existed between nests placed in levels seemed to vary with site location in the lowest levels of nest predation. However, habitat- needed before drawing conclusions from these data. Nest failure is considered an important factor nest predation, as the largest two study sites had the nest, I identified three nest predators: Western Scrub- nests may relate more to the technique I applied than nests. Further study of factors contributing to levels of 508 of 794 nests (64%) was depreciated. In all but of nest predation in Golden-cheeked Warbler habitat is one of the four trials, edge nests had depredation patch size did not correlate significantly with the predation on my artificial nests to actual levels of predation remains difficult. Predation rates on my remotelytriggered camera stationed at an artificial results I present should be interpreted with caution. simulating those of Golden-cheeked Warblers, along 200 than nest proximity to a habitat edge. Overall This study was designed to determine if differential to actual rates of predation on Golden-cheeked Warbler transacts at 5 study sites in Travis County, Texas. trial of 1994 had a statistically significant With few data on actual levels of predation on Golden- |
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| Item Description: | "Major subject: Wildlife and Fisheries Sciences". Vita. |
| Physical Description: | xii, 86 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 75-85. |