Foraging preferences of the threatened coastal California Gnatcatcher (Polioptila californica) during the non-breeding season
We studied the foraging behavior of the federally threatened coastal California Gnatcatcher (Polioptila californica), an obligate insectivore, during the non-breeding season, a period of reduced survivorship for this non-migratory passerine due to seasonal aridity and the onset of cold winter storms...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Resilience Alliance
2023-06-01
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| Series: | Journal of Field Ornithology |
| Subjects: | |
| Online Access: | https://journal.afonet.org/vol94/iss2/art6/ |
| _version_ | 1797791086695940096 |
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| author | Kevin B. Clark Kimberly Ferree Kylie Fischer Stephen J. Myers |
| author_facet | Kevin B. Clark Kimberly Ferree Kylie Fischer Stephen J. Myers |
| author_sort | Kevin B. Clark |
| collection | DOAJ |
| description | We studied the foraging behavior of the federally threatened coastal California Gnatcatcher (Polioptila californica), an obligate insectivore, during the non-breeding season, a period of reduced survivorship for this non-migratory passerine due to seasonal aridity and the onset of cold winter storms. During the seasonal dry period in fall (October–November), California Gnatcatchers preferentially foraged in fall-blooming shrubs such as coyote brush (Baccharis pilularis), and California brickelbush (Brickellia californica). Upon the onset of the wet winter period (December–January), foraging California Gnatcatchers demonstrated a seasonal shift toward drought deciduous shrubs then leafing out, especially coastal sagebrush (Artemisia californica). Our findings suggest that California Gnatcatchers shift their foraging preferences seasonally to track available food resources. Additionally, our findings point to the value of floristic diversity within California Gnatcatcher habitat to provide year-round foraging opportunities for this obligate insectivore. |
| first_indexed | 2024-03-13T02:13:47Z |
| format | Article |
| id | doaj.art-327ce00cd5014a6898b88ee1c7ef12c9 |
| institution | Directory Open Access Journal |
| issn | 1557-9263 |
| language | English |
| last_indexed | 2024-03-13T02:13:47Z |
| publishDate | 2023-06-01 |
| publisher | Resilience Alliance |
| record_format | Article |
| series | Journal of Field Ornithology |
| spelling | doaj.art-327ce00cd5014a6898b88ee1c7ef12c92023-06-30T19:00:16ZengResilience AllianceJournal of Field Ornithology1557-92632023-06-019426269Foraging preferences of the threatened coastal California Gnatcatcher (Polioptila californica) during the non-breeding seasonKevin B. Clark0Kimberly Ferree1Kylie Fischer2Stephen J. MyersSan Diego Natural History MuseumSan Diego Natural History MuseumWSP USAWe studied the foraging behavior of the federally threatened coastal California Gnatcatcher (Polioptila californica), an obligate insectivore, during the non-breeding season, a period of reduced survivorship for this non-migratory passerine due to seasonal aridity and the onset of cold winter storms. During the seasonal dry period in fall (October–November), California Gnatcatchers preferentially foraged in fall-blooming shrubs such as coyote brush (Baccharis pilularis), and California brickelbush (Brickellia californica). Upon the onset of the wet winter period (December–January), foraging California Gnatcatchers demonstrated a seasonal shift toward drought deciduous shrubs then leafing out, especially coastal sagebrush (Artemisia californica). Our findings suggest that California Gnatcatchers shift their foraging preferences seasonally to track available food resources. Additionally, our findings point to the value of floristic diversity within California Gnatcatcher habitat to provide year-round foraging opportunities for this obligate insectivore.https://journal.afonet.org/vol94/iss2/art6/california gnatcatcherconservationendangered speciesforaginghabitatnon-breeding seasonpolioptila californica |
| spellingShingle | Kevin B. Clark Kimberly Ferree Kylie Fischer Stephen J. Myers Foraging preferences of the threatened coastal California Gnatcatcher (Polioptila californica) during the non-breeding season Journal of Field Ornithology california gnatcatcher conservation endangered species foraging habitat non-breeding season polioptila californica |
| title | Foraging preferences of the threatened coastal California Gnatcatcher (Polioptila californica) during the non-breeding season |
| title_full | Foraging preferences of the threatened coastal California Gnatcatcher (Polioptila californica) during the non-breeding season |
| title_fullStr | Foraging preferences of the threatened coastal California Gnatcatcher (Polioptila californica) during the non-breeding season |
| title_full_unstemmed | Foraging preferences of the threatened coastal California Gnatcatcher (Polioptila californica) during the non-breeding season |
| title_short | Foraging preferences of the threatened coastal California Gnatcatcher (Polioptila californica) during the non-breeding season |
| title_sort | foraging preferences of the threatened coastal california gnatcatcher polioptila californica during the non breeding season |
| topic | california gnatcatcher conservation endangered species foraging habitat non-breeding season polioptila californica |
| url | https://journal.afonet.org/vol94/iss2/art6/ |
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