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Filtering by: Subject Umpqua River Estuary (Or.) Advisor Roby, Daniel D. Creator Collar, Stefanie

Site fidelity and colony dynamics of Caspian terns nesting at East Sand Island, Columbia River Estuary, Oregon, USA

Creator:

Collar, Stefanie

Abstract:

Fidelity to breeding sites in colonial birds is an adaptive trait thought to have evolved to enhance reproductive success by reducing search time for breeding habitat, allowing earlier nest initiation, facilitating mate retention, and reducing uncertainty of predator presence and food availability. Studying a seabird that has evolved relatively low...

Resource Type:

Masters Thesis

Full Text:

of Caspian terns nesting on ESI, or anywhere else in the Columbia River estuary, prior to 1984