CAN SUPPLEMENTAL FORAGING PERCHES ENHANCE HABITAT FOR ENDANGERED SAN CLEMENTE LOGGERHEAD SHRIKES?
| العنوان: | CAN SUPPLEMENTAL FORAGING PERCHES ENHANCE HABITAT FOR ENDANGERED SAN CLEMENTE LOGGERHEAD SHRIKES? |
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| المؤلفون: | Suellen Lynn, David K. Garcelon, John A. Martin |
| المصدر: | The Wilson Journal of Ornithology. 118:333-340 |
| بيانات النشر: | Wilson Ornithological Society, 2006. |
| سنة النشر: | 2006 |
| مصطلحات موضوعية: | Ecology, biology, Foraging, Endangered species, San Clemente loggerhead shrike, biology.organism_classification, Change size, Habitat destruction, Habitat, Shrike, Lanius, Animal Science and Zoology, Ecology, Evolution, Behavior and Systematics |
| الوصف: | Habitat degradation caused by feral grazers has been identified as a possible limiting factor for the endangered San Clemente Loggerhead Shrike (Lanius ludovicianus mearnsi). In 1999, we installed supplemental foraging perches within shrike breeding territories on San Clemente Island and observed shrike foraging behavior before and after perches were installed. Shrike foraging efficiency, determined by measuring foraging attack distances and success rates, was not improved when supplemental perches were present; however, shrikes shifted their focal foraging sites to areas where perches were installed. Shrike home ranges did not change size when supplemental perches were installed, indicating that foraging areas made available by adding supplemental perches were not of higher quality than those that were previously available. However, the addition of supplemental perches may have increased the total foraging habitat available to this endangered subspecies. |
| تدمد: | 1938-5447 1559-4491 |
| DOI: | 10.1676/05-055.1 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::a8325d513b53aa53e237b6875786c866 https://doi.org/10.1676/05-055.1 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........a8325d513b53aa53e237b6875786c866 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19385447 15594491 |
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| DOI: | 10.1676/05-055.1 |