Reproductive success of gulls in a hybrid zone
Libby Megna, PhD student at UWYO
Glaucous-winged Gulls (Larus glaucescens) and Western Gulls (L.
occidentalis) hybridize extensively where their ranges overlap along the
coasts of Washington and Oregon, producing a continuum of phenotypic
intergrades between the two parental species. This zone typically is
considered an example of geographically bounded hybrid superiority, but
studies have not consistently supported this model. I'll talk about
mating patterns and hatching success of these gulls, and how such data
help us to understand how this hybrid zone works.
When: Wednesday, Oct. 30
6:30pm Bird Chat and refreshments in the lobby
7:00pm Presentation in the auditorium
Where: UW Berry Biodiversity Center, 10th St. & Lewis St. (free parking after 5pm)