Index Catalog // ScholarsArchive@OSU

Quantifying Salmon-Derived Nutrient Loads from the Mortality of Hatchery-Origin Juvenile Chinook Salmon in the Snake River Basin

Creator:: Warren, Dana R. and McClure, Michelle M.
Abstract:: Hatchery supplementation of anadromous salmon is extensive across the Pacific Northwest region with millions of juvenile salmon stocked annually. The influence of hatchery-origin fish as prey items in recipient ecosystems has been explored, but influences of these fish on broader stream nutrient dynamics has not been well-studied. Salmon-derived nutrients (SDN)...
Resource Type:: Article
Full Text:: Mortality of Hatchery-Origin Juvenile Chinook Salmon in the Snake River Basin Dana R. Warren*1 and Michelle

Natural-Channel-Design Restorations that Changed Geomorphology Have Little Effect on Macroinvertebrate Communities in Headwater Streams

Creator:: Ernst, Anne G., Warren, Dana R., and Baldigo, Barry P.
Abstract:: Stream restorations that increase geomorphic stability can improve habitat quality, which should benefit selected species and local aquatic ecosystems. This assumption is often used to define primary restoration goals; yet, biological responses to restoration are rarely monitored or evaluated methodically. Macroinvertebrate communities were inventoried at 6 study reaches within 5...
Resource Type:: Article
Full Text:: Headwater Streams Anne G. Ernst,1,2 Dana R. Warren,3 and Barry P. Baldigo1 Abstract Stream restorations

Comparing streambed light availability and canopy cover in streams with old-growth versus early-mature riparian forests in western Oregon

Creator:: Warren, Dana R., Keeton, William S., Bechtold, Heather A., and Rosi-Marshall, Emma J.
Abstract:: Light availability strongly influences stream primary production, water temperatures and resource availability at the base of stream food webs. In headwater streams, light is regulated primarily by the riparian forest, but few studies have evaluated the influence of riparian forest stand age and associated structural differences on light availability. In...
Resource Type:: Article
Full Text:: R. Warren, Ph.D. 21 Department of Fisheries and Wildlife, 22 Oregon State University 23 109

Colonization and extinction in dynamic habitats: an occupancy approach for a Great Plains stream fish assemblage

Creator:: Falke, Jeffrey A., Bailey, Larissa L., Fausch, Kurt D., and Bestgen, Kevin R.
Abstract:: Despite the importance of habitat in determining species distribution and persistence, habitat dynamics are rarely modeled in studies of metapopulations. We used an integrated habitat-occupancy model to simultaneously quantify habitat change, site fidelity, and local colonization and extinction rates for larvae of a suite of Great Plains stream fishes in...
Resource Type:: Article
Full Text:: approach for a Great Plains stream fish assemblage JEFFREY A. FALKE,1,3 LARISSA L. BAILEY,1 KURT D. FAUSCH

Eastern mosquitofish resists invasion by nonindigenous poeciliids through agonistic behaviors

Creator:: Thompson, Kevin A., Hill, Jeffrey E., and Nico, Leo G.
Abstract:: Florida is a hotspot for nonindigenous fishes with over 30 species established, although few of these are small-bodied species. One hypothesis for this pattern is that biotic resistance of native species is reducing the success of small-bodied, introduced fishes. The eastern mosquitofish Gambusia holbrooki is common in many freshwater habitats...
Resource Type:: Article
Full Text:: invasion by nonindigenous poeciliids through agonistic behaviors Kevin A. Thompson • Jeffrey E. Hill • Leo

A cost-efficient method to assess carbon stocks in tropical peat soil

Creator:: Warren, M. W., Kauffman, J. B., Murdiyarso, D., Anshari, G., Hergoualc'h, K., Kurnianto, S., Purbopuspito, J., Gusmayanti, E., Afifudin, M., Rahajoe, J., Alhamd, L., Limin, S., and Iswandi, A.
Abstract:: Estimation of belowground carbon stocks in tropical wetland forests requires funding for laboratory analyses and suitable facilities, which are often lacking in developing nations where most tropical wetlands are found. It is therefore beneficial to develop simple analytical tools to assist belowground carbon estimation where financial and technical limitations are...
Resource Type:: Article
Full Text:: Published by Copernicus Publications on behalf of the European Geosciences Union. 4478 M. W. Warren et al

Patterns of loggerhead turtle ontogenetic shifts revealed through isotopic analysis of annual skeletal growth increments

Creator:: Ramirez, Matthew D., Avens, Larisa, Seminoff, Jeffrey A., Goshe, Lisa R., and Heppell, Selina S.
Abstract:: Ontogenetic changes in resource use often delimit transitions between life stages. Ecological and individual factors can cause variation in the timing and consistency of these transitions, ultimately affecting community and population dynamics through changes in growth and survival. Therefore, it is important to document and understand behavioral and life history...
Resource Type:: Article
Full Text:: ontogenetic shifts revealed through isotopic analysis of annual skeletal growth increments Ramirez, M. D

Modelling dendritic ecological networks in space: an integrated network perspective

Creator:: Peterson, Erin E., Ver Hoef, Jay M., Isaak, Dan J., Falke, Jeffrey A., Fortin, Marie-Jos ee, Jordan, Chris E., McNyset, Kristina, Monestiez, Pascal, Ruesch, Aaron S., Sengupta, Aritra, Som, Nicholas, Steel, E. Ashley, Theobald, David M., Torgersen, Christian E., and Wenger, Seth J.
Abstract:: Dendritic ecological networks (DENs) are a unique form of ecological networks that exhibit a dendritic network topology (e.g. stream and cave networks or plant architecture). DENs have a dual spatial representation; as points within the network and as points in geographical space. Consequently, some analytical methods used to quantify relationships...
Resource Type:: Article
Full Text:: * Jay M. Ver Hoef,2 Dan J. Isaak,3 Jeffrey A. Falke,4 Marie-Jos�ee Fortin,5 Chris E. Jordan,6

Evaluating the influence of land use, drought and reach isolation on the occurrence of freshwater mussel species in the lower Flint River Basin, Georgia (U.S.A.)

Creator:: Shea, Colin P., Peterson, James T., Conroy, Michael J., and Wisniewski, Jason M.
Abstract:: North American freshwater mussels have been subjected to multiple stressors in recent decades that have contributed to declines in the status and distribution of many species. However, considerable uncertainty exists regarding the relative influence of these factors on observed population declines. 2. We used an occupancy modelling approach to quantify...
Resource Type:: Article
Full Text:: (U.S.A.) COLIN P. SHEA* , 1 , JAMES T. PETERSON †, MICHAEL J. CONROY* AND JASON M. WISNIEWSKI

Impact of land use patterns and agricultural practices on water quality in the Calapooia River Basin of western Oregon

Creator:: Mueller-Warrant, G. W., Griffith, S. M., Whittaker, G. W., Banowetz, G. M., Pfender, W. F., Garcia, T. S., and Giannico, G. R.
Abstract:: Agricultural practices, including tillage, fertilization, and residue management, can affect surface runoff, soil erosion, and nutrient cycling. These processes, in turn, may adversely affect (1) quality of aquatic resources as habitat for amphibians, fish, and invertebrates, (2) costs of treating surface and ground water to meet drinking water standards, and...
Resource Type:: Article
Full Text:: agron- omist, Stephen M. Griffith is a research plant physiologist, Gerald W. Whittaker is a research

ScholarsArchive@OSU

Quantifying Salmon-Derived Nutrient Loads from the Mortality of Hatchery-Origin Juvenile Chinook Salmon in the Snake River Basin

Natural-Channel-Design Restorations that Changed Geomorphology Have Little Effect on Macroinvertebrate Communities in Headwater Streams

Comparing streambed light availability and canopy cover in streams with old-growth versus early-mature riparian forests in western Oregon

Colonization and extinction in dynamic habitats: an occupancy approach for a Great Plains stream fish assemblage

Eastern mosquitofish resists invasion by nonindigenous poeciliids through agonistic behaviors

A cost-efficient method to assess carbon stocks in tropical peat soil

Patterns of loggerhead turtle ontogenetic shifts revealed through isotopic analysis of annual skeletal growth increments

Modelling dendritic ecological networks in space: an integrated network perspective

Evaluating the influence of land use, drought and reach isolation on the occurrence of freshwater mussel species in the lower Flint River Basin, Georgia (U.S.A.)

Impact of land use patterns and agricultural practices on water quality in the Calapooia River Basin of western Oregon

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