Index Catalog // ScholarsArchive@OSU

Creator:: Ligeiro, Raphael, Hughes, Robert M., Kaufmann, Philip R., Macedo, Diego R., Firmiano, Kele R., Ferreira, Wander R., Oliveira, Deborah, Melo, Adriano S., and Callisto, Marcos
Abstract:: Most studies dealing with the use of ecological indicators and other applied ecological research rely on some definition or concept of what constitutes least-, intermediate- and most-disturbed condition. Currently, most rigorous methodologies designed to define those conditions are suited to large spatial extents (nations, ecoregions) and many sites (hundreds to...
Resource Type:: Article
Full Text:: ., 2003; Hering et al., 2006; Whittier et al., 2007a). The EPT assemblages (insect orders Ephemeroptera

Creator:: Hughes, Robert M. and Herlihy, Alan T.
Abstract:: OBJECTIVE. Hospital readmissions are a current target of initiatives to reduce healthcare costs. This study quantified the association between having a clinical culture positive for 1 of 3 prevalent hospital-associated organisms and time to hospital readmission. DESIGN. Retrospective cohort study. PATIENTS AND SETTING. Adults admitted to an academic, tertiary care...
Resource Type:: Article
Full Text:: each river so that they were unequally dispersed but were not overlapping (Stevens and Olsen 2004

Creator:: Hughes, Robert M., Herlihy, Alan T., Gerth, William J., and Pan, Yangdong
Abstract:: The number of sites sampled must be considered when determining the effort necessary for adequately assessing taxa richness in an ecosystem for bioassessment purposes; however, there have been few studies concerning the number of sites necessary for bioassessment of large rivers. We evaluated the effect of sample size (i.e., number...
Resource Type:: Article
Full Text:: USGS 2006) to be unequally dispersed but not overlapping (Stevens and Olsen 2004). The rivers included

Creator:: Ferreira, Wander R., Ligeiro, Raphael, Macedo, Diego R., Hughes, Robert M., Kaufmann, Philip R., Oliveira, Leando G., and Callisto, Marcos
Abstract:: An understanding of the interactions among local environmental factors (e.g., physical habitat and water quality) and aquatic assemblages is essential to conserve biodiversity in tropical and subtropical headwater streams. We evaluated the relative importance of multiple physical and chemical habitat variables that influence the richness of Ephemeroptera, Plecoptera, and Trichoptera...
Resource Type:: Article
Full Text:: family farms (Ligeiro et al. 2013). Site selection We selected sites as described by Stevens and Olsen

Creator:: Gerth, W. J., Herlihy, A. T., and Sifneos, J. C.
Abstract:: We quantified the patterns in macroinvertebrate assemblages and their associated environmental gradients from 457 least-disturbed wadeable stream sites across the 48 contiguous United States sampled as part of US EPA’s National Wadeable Stream Assessment. The majority of the variation in assemblage composition at the finest taxonomic resolution was related to...
Resource Type:: Article
Full Text:: USGS topographic maps (Herlihy et al., 2000; Stevens and Olsen, 2004) to insure that the samples were

Creator:: Koketsu, Wataru
Abstract:: The Pseudophyllidean tapeworm, Schistocephalus solidus, is a parasite that requires both copepods and fish, mainly the threespine stickleback (Gasterosteus aculeatus) as intermediate hosts, and birds as its final host to complete its life cycle. A rapid increase in the abundance of both the non-native stickleback and the tapeworm in the...
Resource Type:: Masters Thesis
Full Text:: for habitat selection of both host and parasite (Whittier and Hughes 1998, Sandell et al. 2001

Creator:: Kelly, Valerie
Abstract:: This study evaluates the functional organization of stream fish assemblages in response to streamflow factors and biotic interactions across a range of spatial scale. The study area for this project includes 109 stream reaches located on tributaries to the upper Missouri River in the northern Great Plains. Fish distribution data...
Resource Type:: Dissertation
Full Text:: EPA laboratory in Corvallis, especially Sue Pierson and Steven Jett, who generated the watershed

Creator:: Sheridan, Thomas M.
Abstract:: Collaborative decision-making is often promoted as a means to achieve socially acceptable and enduring solutions to natural resource management issues, and one that holds promise for resolving “wicked” problems. However, success rates for implementation of collaborative recommendations are unknown. This paper explores challenges to collaborative salmon fishery management in Prince...
Resource Type:: Capstone Project
Full Text:: Chenega, Cordova, Tatitlek, Valdez, and Whittier (Stopha, 2017). Modest hatchery releases near the

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