Index Catalog // ScholarsArchive@OSU

Evidence for Cross-Seasonal Effects: Insights from Long-term Data on Northern Pintail

Creator:: Zarzycki, Megan C.
Abstract:: Cross-seasonal effects, where conditions in one season can have consequences in a following season, can have population-level implications for migratory species. To assess the presence of cross-seasonal effects on a migratory dabbling duck population, we examined the relative importance of habitat conditions in multiple seasons on the subsequent productivity of...
Resource Type:: Masters Thesis
Full Text:: Flyway of North America. Our results indicate that during the period from 1961-2013 habitat conditions

Simulation of environmental, biological, and fisheries effects on yields of English sole (Parophyrus [i.e. Parophrys] vetulus) off Oregon and Washington

Creator:: Hayden, Thomas R.
Abstract:: English sole is a major contributor to Oregon and Washington groundfish resources. In accordance with the continued trend of increasing fishing effort, in 1975 Oregon State University Sea Grant funded an extensive groundfish research program: the Pleuronectid Project. The purpose was to provide information to assist resource management agencies. This...
Resource Type:: Masters Thesis

Long-term variation in growth of Dover sole (Microstomous pacificus) and English sole (Parophrys vetulus), and its possible relationship with upwelling

Creator:: Kreuz, Keith Francis
Abstract:: Variation in growth rate of Dover sole (Microstomous pacificus) off Astoria and Brookings, and English sole (Parophrys vetulus) growth off Astoria and Coos Bay, Oregon was studied using the distance between annuli on scales and interoperculum bones indicating growth rate for Dover sole and English sole respectively. The age at...
Resource Type:: Masters Thesis
Full Text:: mean growth between 1961 and 1974. Dover and English sole cap- tured off Astoria experienced good and

Environmental fluctuation and cohort strength of Dover sole (Microstomus pacificus and English sole (Parophrys vetulus)

Creator:: Hayman, Robert August
Abstract:: Models were developed that described cohort strength of female Dover sole (Microstomus pacificus) and female English sole (Parophrys vetulus) in stocks off the Columbia River as functions of environmental variables. The environmental variables considered were those that could hypothetically influence spawning success or survival. They included a spawning power index,...
Resource Type:: Masters Thesis
Full Text:: factors that were associated with the great success of the 1961 cohort were apparently unique to that

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:: lowest levels since census efforts began in 1961. I investigated fawn survival, cause-specific

Some aspects of the comparative ecology of fishes associated with juvenile sockeye salmon, Oncorhynchus nerka (Walbaum), in the lakes of the Naknek river system, Alaska

Creator:: Wallace, Richard L.
Abstract:: A study of the distribution, relative abundance and diet of fishes sympatric with juvenile sockeye salmon, Oncorhynchus nerka (Walbaum), within the freshwater nursery areas of the Naknek River system was undertaken from 1961 to 1963. The study was part of an extensive investigation to determine what factors in the freshwater...
Resource Type:: Dissertation
Full Text:: system was undertaken from 1961 to 1963. The study was part of an extensive investigation to determine

Reproduction in the eastern cottontail rabbit in Oregon

Creator:: Trethewey, Donald Edwin
Abstract:: Reproductive characteristics of introduced eastern cottontail rabbits, Sylvilagus floridanus (J. A. Allen), were determined from 486 rabbits collected between January 1, 1968 and June 30, 1969, near Corvallis, Oregon. Sex ratios were 1:1 for all rabbits collected and for all embryos 20 days or more gestation. On the basis of...
Resource Type:: Masters Thesis
Full Text:: ; Elder and Finerty, 1943; Ecke, 1955; Lord, 1961; Conaway and Wight, 1962, 1963; Wight and Conaway, 1961

Migrational characteristics and survival rates of mallards banded at Malheur National Wildlife Refuge

Creator:: Furniss, Sean Barry
Abstract:: An analysis of 4,385 recoveries of mallards (Anas platyrhynchos), that were reported during the years 1929 to 1972, was made to determine the migrational characteristics and survival rates of mallards banded at Malheur National Wildlife Refuge in southeastern Oregon. Two populations, a transitory population and a wintering population, were banded...
Resource Type:: Masters Thesis
Full Text:: - 1961- 1930- 1940- 1961- 1930- 1940- 1961-Years of Recovery 1939 1949 1971 1939 1949 1971 1939 1949 1971

Production of the snail Oxytrema silicula (Gould) in an experimental stream

Creator:: Earnest, Russell David
Resource Type:: Masters Thesis
Full Text:: different size-groups. The Redacted for Privacy groups were considered to represent the 1959, 1960, 1961

Life-history organization of cutthroat trout in Yellowstone Lake and its management implications

Creator:: Gresswell, Robert E.
Abstract:: Life-history organization of the cutthroat trout (Oncorhvnchus clarki) may be viewed at various levels, including species, subspecies, metapopulation, population, or individual. Each level varies in spatial scale and temporal persistence, and components at each level continually change with changes in environment. Cutthroat trout are widely distributed throughout the western USA,...
Resource Type:: Dissertation
Full Text:: tributaries to Yellowstone Lake, 1950-1961. 69 2. Physical variables for 115 tributaries of Yellowstone Lake

ScholarsArchive@OSU

Evidence for Cross-Seasonal Effects: Insights from Long-term Data on Northern Pintail

Simulation of environmental, biological, and fisheries effects on yields of English sole (Parophyrus [i.e. Parophrys] vetulus) off Oregon and Washington

Long-term variation in growth of Dover sole (Microstomous pacificus) and English sole (Parophrys vetulus), and its possible relationship with upwelling

Environmental fluctuation and cohort strength of Dover sole (Microstomus pacificus and English sole (Parophrys vetulus)

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

Some aspects of the comparative ecology of fishes associated with juvenile sockeye salmon, Oncorhynchus nerka (Walbaum), in the lakes of the Naknek river system, Alaska

Reproduction in the eastern cottontail rabbit in Oregon

Migrational characteristics and survival rates of mallards banded at Malheur National Wildlife Refuge

Production of the snail Oxytrema silicula (Gould) in an experimental stream

Life-history organization of cutthroat trout in Yellowstone Lake and its management implications

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