We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Hybridization between two insectivorous bird species and the effect on prey-handling efficiency.
- Authors
Grosch, Kai
- Abstract
Focuses on gene flow between closely related species that may be limited by behavioral or ecological factors. Breeding behavior of European common redstarts, Phoenicurus phoenicurus, and black redstarts, P. ochruros, which are insectivorous passerine bird species; How the study focused on prey-handling time and efficiency in both species and the F[sub1]-hybrids in captivity; How all birds changed prey-handling mode from a single pick to more complex behavior with increasing prey length and their handling time was a positive function of prey length; Results indicating that common redstarts tended to handle their prey quicker than black redstarts, and that hybrids appeared to be intermediate; How handling efficiency decreased with increasing prey length and was determined by individual and family effects; Results indicating hybrid females handled their prey as efficient as hybrid males, and that small differences in beak morphology could not explain individual differences in prey-handling behavior; Conclusion suggesting that prey-handling in F[sub1]-hybrids is not a postzygotic barrier which prevent gene flow between common and black redstarts in the wild.
- Subjects
BLACK redstart; PHOENICURUS phoenicurus; PASSERIFORMES; BIRDS of prey
- Publication
Evolutionary Ecology, 2003, Vol 17, Issue 1, p1
- ISSN
0269-7653
- Publication type
Article
- DOI
10.1023/A:1022451219527