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Filtering by: Subject Caspian tern -- Ecology -- Columbia River Estuary (Or. and Wash.) Remove constraint Subject: Caspian tern -- Ecology -- Columbia River Estuary (Or. and Wash.)

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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
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
Foraging ecology of caspian terns and double-crested cormorants in the Columbia River Estuary

Creator:

Lyons, Donald E.

Abstract:

A detailed understanding of the foraging ecology of species preying upon threatened or endangered prey may contribute to identifying and evaluating management options to reduce predation, when such management is deemed appropriate. In the Columbia River estuary, Caspian terns (Sterna caspia) and double-crested cormorants (Phalacrocorax auritus) have been identified as...

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Masters Thesis
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...

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Dissertation

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Academic Affiliation

Fisheries and Wildlife4

Advisor

Roby, Daniel D.4

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2005 to 2014

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Committee Member

Albers, Heidi J.1
Curtis, Lawrence R.1
Dugger, Katie D.1
Dugger, Katie M.1
Gervais, Jennifer A.1
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Creator

Lyons, Donald E.2
Collar, Stefanie1
Suzuki, Yasuko1

Date

Date range begin – Date range end

Current results range from 2004 to 2013

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Decade

2010-20193
2000-20091

Degree Field

Wildlife Science4

Degree Level

Doctoral2
Master's2

Degree Name

Doctor of Philosophy (Ph.D.)2
Master of Science (M.S.)2

Language

English [eng]4

License

All rights reserved4

Non-Academic Affiliation

Oregon State University. Graduate School4

Peer Reviewed

No4

Resource Type

Dissertation2
Masters Thesis2

Rights Statement

In Copyright4

Subject

Caspian tern -- Ecology -- Columbia River Estuary (Or. and Wash.)[remove]4
Caspian tern -- Food -- Columbia River Estuary (Or. and Wash.)3
Double-crested cormorant -- Ecology -- Columbia River Estuary (Or. and Wash.)2
Double-crested cormorant -- Food -- Columbia River Estuary (Or. and Wash.)2
Caspian tern -- Columbia River Estuary (Or. and Wash.) -- Reproduction1
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