Tuesday, October 29, 2013

October Public Talk: Reproduction in Hybrid Gulls

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)

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