Ecological linkages between headwater streams and riparian and downstream habitats in the eastern Cascade Range, Washington, USA
dc.contributor.author | Green, Elizabeth C. | |
dc.date.accessioned | 2022-03-21T03:18:42Z | |
dc.date.available | 2022-03-21T03:18:42Z | |
dc.date.issued | 2009-12 | |
dc.identifier.uri | http://hdl.handle.net/11122/12820 | |
dc.description | Thesis (M.S.) University of Alaska Fairbanks, 2009 | en_US |
dc.description.abstract | "I examined how headwater streams are ecologically linked with the terrestrial environment and upstream waters. I examined relationships between fish (rainbow and cutthroat trout), invertebrates, and habitat in 15 headwater streams in two ecoregions (wet, dry) and timber harvest scenarios (logged, unlogged) in the Wenatchee River sub-basin in the eastern Cascade Mountain Range, Washington state, USA. Fish biomass, density, and size were not related to ecoregion or to logging history. Invertebrate drift manipulations in 13 streams influenced fish movement (fish moved downstream in sites that were not supplemented with food) and diet (fish consumed less prey when drifting invertebrates were removed), but not fish growth or abundance. This study demonstrated that fish utilize drifting prey originating from upstream fishless waters, and that they are not able to compensate for the loss of this food. Headwater forest management may affect fish populations by altering prey resources where fish are food-limited"--Leaf iv | en_US |
dc.description.sponsorship | Bonneville Power Administration | en_US |
dc.description.tableofcontents | 1. Habitat correlates of fish biomass in logged and unlogged headwater streams in the Cascade Range -- 2. Prey delivered from fishless headwater streams affect diet of downstream fish -- General conclusions. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Freshwater fishes | en_US |
dc.subject | Freshwater habitats | en_US |
dc.subject | Stream ecology | en_US |
dc.subject | Riparian ecology | en_US |
dc.subject | Riparian areas | en_US |
dc.subject | Forest management | en_US |
dc.subject | Cascade Range | en_US |
dc.title | Ecological linkages between headwater streams and riparian and downstream habitats in the eastern Cascade Range, Washington, USA | en_US |
dc.type | Thesis | en_US |
dc.type.degree | ms | en_US |
dc.identifier.department | Department of Biology and Wildlife | en_US |
refterms.dateFOA | 2022-03-21T03:18:43Z |
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Theses supervised by AKCFWRU
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Biological Sciences
Includes WIldlife Biology and other Biological Sciences. For Marine Biology see the Marine Sciences collection.