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Filtering by: Committee Member Heppell, Selina S. Remove constraint Committee Member: Heppell, Selina S. Resource Type Dissertation Remove constraint Resource Type: Dissertation

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Thermal Tolerance and Adaptation in Cnidarians: An Investigation of Host Transcriptomic Responses and Heritable Variation Across Natural Populations

Creator:

Dziedzic, Katherine E.

Abstract:

Coral reefs have become vulnerable to climate change, with mass bleaching events, the loss of symbiotic algae (Symbiodiniaceae), increasing in both frequency and severity. As climate change continues to threaten the persistence and existence of coral reefs around the world, the biggest question posed for coral reefs is “can they...

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Dissertation
Behavior and Ecological Effects of Invasive Lionfish on Atlantic Coral Reefs and Seagrass Beds

Creator:

Benkwitt, Cassandra E.

Abstract:

Although only a minority of introduced species become established and have noticeable consequences in their new communities, some can displace native species, alter food webs, and cause local extinctions. Studying these invasive species can provide new insights into basic ecological questions as well as inform management strategies. Pacific lionfish (Pterois...

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Dissertation
Aquatic community responses to drought disturbance: experimental manipulations of top predator extinctions and stream drying

Creator:

Boersma, Kate S.

Abstract:

Although it is generally assumed that the intensifying abiotic environment is the primary effect of drought on aquatic organisms, drought-induced top predator extinctions may be an important underlying mechanism. I used manipulative experiments to disentangle the impacts of drying and top predator extinctions on arid-land aquatic invertebrate communities. I then...

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Dissertation
Distribution and movements of Chinook salmon, Oncorhynchus tshawytscha, returning to the Yukon River basin

Creator:

Eiler, John H.

Abstract:

Chinook salmon, Oncorhynchus tshawytscha, returning to the Yukon River basin and other large river systems in western Alaska have declined dramatically since the late 1990s. This continuing trend has raised concerns over the future status of the returns, and severely impacted commercial and subsistence fisheries within the drainage. Management is...

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Dissertation
Larval dispersal in marine fishes: novel methods reveal patterns of self-recruitment and population connectivity

Creator:

Christie, Mark R.

Abstract:

Many marine fish populations are severely declining due to over-fishing, loss of both juvenile and adult habitats, and accelerating environmental degradation. Fisheries management and the implementation of marine protected areas (MPAs) and other conservation tools are currently hindered by large gaps in knowledge about larval dispersal and its subsequent effects...

Resource Type:

Dissertation
Motivation and engagement in school among immigrant Latino middle school students

Creator:

Knudson-Martin, John

Abstract:

This study investigated how a minority population of Latino/a immigrant children attending a middle school in the Pacific Northwest made sense of engaging with school and school mathematics. A cross disciplinary theoretical framework was used to examine how individual student motivation is impacted by the social context in which the...

Resource Type:

Dissertation
Impacts of forest-to-agriculture conversion on aboveground and soil carbon and nitrogen stocks along a bioclimatic gradient in Costa Rica

Creator:

Jobse, Judith C.

Abstract:

Tropical forest-to-agriculture conversions contribute to ~20% of contemporary global C emissions. Current global C flux estimates assume C is lost from vegetation and soils over time due to this conversion, and that C stocks in agricultural lands are fairly uniform across the tropics. Global C stock and flux estimates may...

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Dissertation

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Academic Affiliation

Fisheries and Wildlife2
Integrative Biology2
Zoology2
Science and Mathematics Education1

Advisor

Hixon, Mark A.2
Edge, W. Daniel1
Enochs, Larry G.1
Harmon, Mark E.1
Lytle, David A.1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2009 to 2019

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Committee Member

Heppell, Selina S.[remove]7
Arnold, Stevan1
Arnold, Stevan J.1
Banks, Michael A.1
Barreto, Felipe S.1
more Committee Members »

Creator

Benkwitt, Cassandra E.1
Boersma, Kate S.1
Christie, Mark R.1
Dziedzic, Katherine E.1
Eiler, John H.1
more Creators »

Date

Date range begin – Date range end

Current results range from 2008 to 2019

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Decade

2010-20194
2000-20093

Degree Field

Zoology4
Fisheries Science1
Mathematics Education1
Wildlife Science1

Degree Level

Doctoral7

Degree Name

Doctor of Philosophy (Ph.D.)7

Language

English [eng]7

License

All rights reserved7

Non-Academic Affiliation

Oregon State University. Graduate School6

Peer Reviewed

No7

Resource Type

Dissertation[remove]7

Rights Statement

In Copyright7

Subject

Carbon cycle (Biogeochemistry) -- Costa Rica1
Carbon sequestration -- Costa Rica1
Chinook salmon -- Migration -- Yukon River Watershed (Yukon and Alaska)1
Chinook salmon -- Spawning -- Yukon River Watershed (Yukon and Alaska)1
Chinook salmon -- Yukon River Watershed (Yukon and Alaska) -- Geographical distribution1
more Subjects »

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