Index Catalog // ScholarsArchive@OSU

Assessment of mule deer fawn survival and birth site habitat attributes in south-central Oregon

Creator:: Speten, David
Abstract:: Mule deer (Odocoileus hemionus) populations in south-central Oregon are near their lowest levels since census efforts began in 1961. I investigated fawn survival, cause-specific mortality, and factors contributing to mortality from 2010 – 2012 to identify potential causes for the decline. I also explored pre-parturition and parturition site characteristics. I...
Resource Type:: Masters Thesis
Full Text:: , lower reproductive efficiency, higher 12 post-natal mortality, lower fecundity, and

News & Views, 1991/12

Creator:: Edge, Dan
Resource Type:: Other
Full Text:: ) as he had visited the area back in the summer of '47 and caught some of those pan-sized rainbows. "At

News & Views, 1990/12

Creator:: Edge, Dan
Resource Type:: Other
Full Text:: -growth forests, 12- 16 miles inland. We were able to observe 3 weeks of incubation activities at each

More than one million barriers fragment Europe’s rivers

Creator:: Belletti, Barbara, Garcia de Leaniz, Carlos, Jones, Joshua, Bizzi, Simone, Börger, Luca, Segura, Gilles, Castelletti, Andrea, van de Bund, Wouter, Aarestrup, Kim, Barry, James, Belka, Kamila, Berkhuysen, Arjan, Birnie-Gauvin, Kim, Bussettini, Martina, Carolli, Mauro, Consuegra, Sofia, Dopico, Eduardo, Feierfeil, Tim, Fernández, Sara, Fernandez Garrido, Pao, Garcia-Vazquez, Eva, Garrido, Sara, Giannico, Guillermo, Gough, Peter, Jepsen, Niels, Jones, Peter E., Kemp, Paul, Kerr, Jim, King, James, Łapińska, Małgorzata, Lázaro, Gloria, Lucas, Martyn C., Marcello, Lucio, Martin, Patrick, McGinnity, Phillip, O’Hanley, Jesse, Olivo del Amo, Rosa, Parasiewicz, Piotr, Pusch, Martin, Rincon, Gonzalo, Rodriguez, Cesar, Royte, Joshua, Schneider, Claus Till, Tummers, Jeroen S., Vallesi, Sergio, Vowles, Andrew, Verspoor, Eric, Wanningen, Herman, Wantzen, Karl M., Wildman, Laura, and Zalewski, Maciej
Abstract:: Rivers support some of Earth’s richest biodiversity and provide essential ecosystem services to society, but they are often fragmented by barriers to free flow. In Europe, attempts to quantify river connectivity have been hampered by the absence of a harmonized barrier database. Here we show that there are at least...
Resource Type:: Article

Breeding chronology, habitat utilization and nest-site selection of the long-billed curlew in northcentral Oregon

Creator:: Pampush, Geoffrey J.
Abstract:: Breeding ecology of long-billed curlews in Umatilla and Morrow Counties, Oregon, was studied during the spring and summer of 1978 and 1979. The first curlews were observed in the study areas on 16 and 19 March of 1978 and 1979, respectively. Earliest clutch completion and onset of incubation was on...
Resource Type:: Masters Thesis
Full Text:: Bombing Range Annual grass 122 .55* .33 .47-.63 North (X 4 = 53.4, Bunchgrass 14 .06* .12 .02-.10 P

Effect of livestock grazing on native bees in a Pacific Northwest bunchgrass prairie

Creator:: Kimoto, Chiho
Abstract:: Native bees play an important role as pollinators of natural vegetation and agricultural crops. Yet many pollinators, including some native bees, are declining in numbers. Some of the potential causes of these declines are habitat destruction and degradation by various human land uses, including urban development and sprawl, construction of...
Resource Type:: Masters Thesis
Full Text:: intervals…..…….47 2.5 Values of a) mean average daily temperature (°C) and b) total

Susceptibility of juvenile salmonids to avian predation : Are Caspian terns and double-crested cormorants only taking the sick and injured?

Creator:: Hostetter, Nathan J.
Abstract:: The ability to non-destructively assess fish condition and subsequently track fish behavior and survival can be vital in understanding natural and anthropogenic stressors and sources of mortality, especially in populations of fish listed as threatened or endangered. I investigated the use of a quick, non-lethal, external examination technique to assess...
Resource Type:: Masters Thesis
Full Text:: . .................................................47 2.5. Summary of steelhead lethally collected at Lower Monumental Dam in 2008. Percentages

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Creator:: Miller, Scott W.
Abstract:: I used current water management practices in central and eastern Oregon and Washington as natural experiments to quantify the effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies. Reduced discharge had direct (e.g. decreased velocity and wetted habitat) and indirect (e.g. increased conductivity and temperature) effects...
Resource Type:: Dissertation
Full Text:: ., voltinism, thermal preference, size) for 12 rivers spanning an altitudinal gradient. Species traits

A population study of the rainbow trout (Salmo gairdneri) in a Central Oregon stream

Creator:: Osborn, Charles Edwin
Abstract:: The rainbow trout population in Elder Creek, Oregon was studied between June 1965 and November 1966. The physical characteristics of the stream during the summer season were described. Rainbow trout were captured in each of three sections on the stream by electrofishing and were tagged and measured. Population size, mortality,...
Resource Type:: Masters Thesis
Full Text:: 6300 feet at its source,Elder Creek descends 1700 feet in 12 miles and drains an area of approximately

Foraging ecology of caspian terns and double-crested cormorants in the Columbia River Estuary

Creator:: Lyons, Donald E.
Abstract:: A detailed understanding of the foraging ecology of species preying upon threatened or endangered prey may contribute to identifying and evaluating management options to reduce predation, when such management is deemed appropriate. In the Columbia River estuary, Caspian terns (Sterna caspia) and double-crested cormorants (Phalacrocorax auritus) have been identified as...
Resource Type:: Masters Thesis
Full Text:: for over a century (Lichatowich 1999). In the Columbia River basin 12 of 20 evolutionarily

ScholarsArchive@OSU

Assessment of mule deer fawn survival and birth site habitat attributes in south-central Oregon

News & Views, 1991/12

News & Views, 1990/12

More than one million barriers fragment Europe’s rivers

Breeding chronology, habitat utilization and nest-site selection of the long-billed curlew in northcentral Oregon

Effect of livestock grazing on native bees in a Pacific Northwest bunchgrass prairie

Susceptibility of juvenile salmonids to avian predation : Are Caspian terns and double-crested cormorants only taking the sick and injured?

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

A population study of the rainbow trout (Salmo gairdneri) in a Central Oregon stream

Foraging ecology of caspian terns and double-crested cormorants in the Columbia River Estuary

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