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Filtering by: Subject Caspian tern -- Predators of -- Columbia River Estuary (Or. and Wash.) Contributor advisor sim Roby, Daniel D.

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:

productivity of the Caspian tern colony on East Sand Island in the Columbia River estuary
Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Creator:

Suzuki, Yasuko

Abstract:

Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) nest in large colonies on East Sand Island in the Columbia River estuary, the largest known colonies for the two species in the world. Both species of piscivorous colonial waterbirds have been identified as predators with a significant impact on the...

Resource Type:

Dissertation

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majority of smolt losses to avian predators occur in the Columbia River estuary, and that Caspian terns
Bioenergetics-based predator-prey relationships between piscivorous birds and juvenile salmonids in the Columbia River estuary

Creator:

Lyons, Donald E.

Abstract:

This dissertation focuses on the predator-prey relationship between two species of avian predators, Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus), and one of their important prey types, juvenile salmonids (Oncorhynchus spp.), in the Columbia River estuary of Oregon and Washington states during the period 1998 – 2007. I...

Resource Type:

Dissertation

Full Text:

influence of climate on Caspian tern consumption of juvenile salmonids in the Columbia River estuary is

ScholarsArchive@OSU

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

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Bioenergetics-based predator-prey relationships between piscivorous birds and juvenile salmonids in the Columbia River estuary

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