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Effects of grass seed agriculture on aquatic invertebrate communities in seasonal wetlands of the southern Willamette Valley, Oregon

Creator:: Wyss, Lance A.
Abstract:: An estimated 99% of native wet prairie has been lost in the Willamette Valley, Oregon, but a large number of seasonal wetlands remain on private lands dedicated to grass seed production within the historical wet prairie landscape. Because agriculture is known to alter physical and chemical wetland conditions, I investigated...
Resource Type:: Masters Thesis
Full Text:: Invertebrate Communities in Seasonal Wetlands of the Southern Willamette Valley, Oregon INTRODUCTION

Field guide to common fish of the Willamette Valley floodplain

Creator:: Williams, Josh E., Giannico, Guillermo R., Withrow-Robinson, Brad, and Oregon State University. Extension Service
Abstract:: This book contains descriptions of 15 native and 16 nonnative fish (including origin, distribution, key characteristics, size, distinguishing features, color, diet, and other remarks) found in the Willamette River Basin's seasonal watercourses, with over a hundred photos to aid in identification. It also offers a succinct explanation of the Willamette...
Resource Type:: Technical Report
Full Text:: Willamette River Basin The Willamette River is the largest river in Oregon. It has the 13th largest flow of

The impact of nutria (Myocastor coypus) on marsh vegetation in the Willamette Valley, Oregon

Creator:: Wentz, William Alan
Abstract:: The relation of nutria (Myocastor coypus) feeding to total abundance, species composition, and seasonal use of the marsh flora on the William L. Finley National Wildlife Refuge was studied during 1969 and 1970. Nutria numbers were estimated by livetrapping. Food habits data were compiled from observations of feeding nutria. Phenology,...
Resource Type:: Masters Thesis

Fish and wildlife problems arising from the Willamette Valley Project

Creator:: Oregon. State Game Commission and Oregon. Fish Commission
Resource Type:: Technical Report
Full Text:: River 40 TABLE OF CONTENTS (continued) Marys River Luckiamute River Main Stem Willamette River

Relationships of the freshwater naiad Margaritifera margaritifera falcata to some fishes of the Willamette River

Creator:: Chesnutis, Edward Joseph
Resource Type:: Masters Thesis

Fish resources of the Willamette basin; a report to the outline-schedule team of the Willamette Basin Task Force

Creator:: Thompson, Kenneth E., Oregon. State Game Commission. Basin Investigations Section, Hutchison, James M., Fortune, John D., Phillips, Robert W., and Simmons, Charles
Resource Type:: Book
Full Text:: Confluence of Middle and Coast Forks of the Willamette River by Kenneth E0 Thompson9 Oregon State Game

Bio-indices of pollution in the Willamette River

Creator:: Deschamps, Gene
Resource Type:: Masters Thesis
Full Text:: --i1lamette River at Butteville....... 17 Figure 14. Station Twelve--Willamette iUver at Oregon City

Benthic algal flora of four rivers of the middle Willamette River Basin

Creator:: Todd, Leona Esther
Abstract:: Fresh-water benthic river algae were collected from selected sites in Willamette River tributaries; two sampling sites were in the Yamhill River system and four sampling sites were in the Santiam River system. Twelve samples were taken at each collection site in the Yamhill River system at approximately monthly intervals from...
Resource Type:: Dissertation
Full Text:: Santiam River (S) and the South Santiam River (SS) occur in the Middle Willamette River Basin (Oregon

Patterns in responses of an amphibian assemblage to wetland restoration

Creator:: Rowe, Jennifer C.
Abstract:: Wetland restoration success in attaining wildlife conservation goals can be confounded by the presence of multiple biological invaders. Wetland management activities typically target invasive plants, but bottom-up responses of higher trophic levels in novel communities are difficult to predict. We surveyed plant and amphibian assemblages at 26 sites enrolled in...
Resource Type:: Masters Thesis
Full Text:: assemblages at 26 sites enrolled in the Wetlands Reserve Program (WRP) in the Willamette Valley, Oregon to

Ecological and mortality factors affecting the nesting stage of the Chinese pheasant, Phasianus torquatus Gmelin, in the Willamette Valley, Oregon

Creator:: Eklund, Carl Robert
Resource Type:: Masters Thesis
Full Text:: Stage of the Chinese Pheasant, Phasianus torquatus, Gmelin in the Willamette Valley, Oregon AN

ScholarsArchive@OSU

Effects of grass seed agriculture on aquatic invertebrate communities in seasonal wetlands of the southern Willamette Valley, Oregon

Field guide to common fish of the Willamette Valley floodplain

The impact of nutria (Myocastor coypus) on marsh vegetation in the Willamette Valley, Oregon

Fish and wildlife problems arising from the Willamette Valley Project

Relationships of the freshwater naiad Margaritifera margaritifera falcata to some fishes of the Willamette River

Fish resources of the Willamette basin; a report to the outline-schedule team of the Willamette Basin Task Force

Bio-indices of pollution in the Willamette River

Benthic algal flora of four rivers of the middle Willamette River Basin

Patterns in responses of an amphibian assemblage to wetland restoration

Ecological and mortality factors affecting the nesting stage of the Chinese pheasant, Phasianus torquatus Gmelin, in the Willamette Valley, Oregon

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