| Autor: |
Cimprich, David A., Sexton, Charles W., McDowell, P. Kelly, Lasley, Greg, Simper, William S. |
| Zdroj: |
Bulletin of the Texas Ornithological Society; Sep2009, Vol. 42 Issue 1/2, p44-47, 4p, 1 Black and White Photograph, 1 Map |
| Abstrakt: |
Information on dispersal of the endangered Black-capped Vireo (Vireo atricapilla) is limited due to the inherent difficulty of relocating marked individuals in subsequent breeding seasons. We report on three relatively long-distance dispersals for this species. Alt three birds (two males and one female) were banded as nestlings on Fort Hood Military Reservation in Coryell County, Texas, and recaptured on Balcones Canyonlands National Wildlife Refuge in Williamson and Burnet Counties where they appeared to be attempting to breed. Upon recapture, these birds were 75.2, 78.1, and 49.6 km, respectively, from their natal sites. To our knowledge, these are the longest known dispersal movements for this species, and they suggest movements of this magnitude may not be unusual. Our observations also suggest that source populations separated by as much as 78 km are likely not genetically isolated. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
