Can Song Discriminate between Macgillivray's and Mourning Warblers in a Narrow Hybrid Zone?
نویسندگان
چکیده
منابع مشابه
Extensive hybridization in a contact zone between MacGillivray’s warblers Oporornis tolmiei and mourning warblers O. philadelphia detected using molecular and morphological analyses
There are many pairs of related western and eastern avian taxa in North America, and for many of these, little is known about their interactions in sympatry. One example is provided by MacGillivray’s warblers Oporornis tolmiei and mourning warblers Oporornis philadelphia. There have been occasional reports of range contact and hybridization between these forms, but recent authors have doubted t...
متن کاملPlumage and mitochondrial DNA haplotype variation across a moving hybrid zone.
We analyze variation in phenotypes and mitochondrial DNA (mtDNA) haplotypes over the breeding ranges of hermit and Townsend's warblers and across two of their three hybrid zones. Within these two hybrid zones, we demonstrate that the placement, shape, and width of transitions in seven plumage characters are remarkably similar, suggesting that a balance between dispersal and sexual selection kee...
متن کاملMigratory orientation in a narrow avian hybrid zone
BACKGROUND Zones of contact between closely related taxa with divergent migratory routes, termed migratory divides, have been suggested as areas where hybrid offspring may have intermediate and inferior migratory routes, resulting in low fitness of hybrids and thereby promoting speciation. In the Rocky Mountains of Canada there is a narrow hybrid zone between Audubon's and myrtle warblers that ...
متن کاملExtensive hybridization in a contact zone between MacGillivray’s and mourning warblers (Oporornis tolmiei and O. philadelphia) detected using molecular and morphological analyses
This is a pre-acceptance preprint of: Irwin DE, Brelsford A, Toews DPL, MacDonald C, Phinney M. Extensive hybridization in a contact zone between MacGillivray’s and mourning warblers (Oporornis tolmiei and O. philadelphia) detected using molecular and morphological analyses. Journal of Avain Biology, in press (accepted 12 January 2009). For the definitive version, please see the Journal of Avia...
متن کاملIsotopic variation across the Audubon's-myrtle warbler hybrid zone.
Differences in seasonal migratory behaviours are thought to be an important component of reproductive isolation in many organisms. Stable isotopes have been used with success in estimating the location and qualities of disjunct breeding and wintering areas. However, few studies have used isotopic data to estimate the movements of hybrid offspring in species that form hybrid zones. Here, we use ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011