Index Catalog // ScholarsArchive@OSU

All in a DNA's work : conservation genetics and monitoring of the New Zealand endemic Maui's and Hector's dolphins

Creator:: Hamner, Rebecca Marie
Abstract:: The critically endangered Maui's dolphin (Cephalorhynchus hectori maui) and the endangered Hector's dolphin (C. h. hectori) are endemic to the coastal waters of New Zealand, where their primary threat is fisheries-related mortality. The Maui's dolphin is among the most critically endangered cetaceans in the world, with its remnant population primarily...
Resource Type:: Dissertation
Full Text:: high diversity (31 to 63 alleles) in both Hector’s and Maui’s dolphins and appears to be influenced

Endocrine regulation of final oocyte maturation and sex differentiation in salmonids

Creator:: Fitzpatrick, Martin S.
Abstract:: Sexual maturation and sex differentiation comprise facets of a common theme: reproduction. The endocrine system regulates many of the critical physiological processes necessary for reproduction and offers a framework within which technologies can be developed for controlling sexual maturation and sex differentiation. The studies described in this thesis were undertaken...
Resource Type:: Dissertation
Full Text:: salmon gonadotropin (SG) or porcine adrenocorticotropin (pACTH). 26. Mean levels of androstenedione in

Sexual maturation of coho salmon (Oncorhynchus kisutch) : induced ovulation, in vitro induction of final maturation and ovulation, and serum hormone and ion levels of salmon in seawater and fresh water

Creator:: Sower, Stacia, 1950-
Resource Type:: Dissertation
Full Text:: - jections with SG-G100 (partially purified salmon gonadotropin) and saline extracts of salmon pituitary

Cumulative effects of land use on salmon habitat in southwest Oregon coastal streams

Creator:: Frissell, Christopher Andrew, 1960-
Abstract:: As part of a hierarchical approach to classifying watersheds and stream habitats based on geomorphic and geologic criteria, we defined ten classes of fluvial and lacustrine habitats at the scale of valley segments. Valley segments are landscape units which encompass surface waters and the adjacent floodplains and hillslopes with which...
Resource Type:: Dissertation
Full Text:: segments in Sixes River (a) and Euchre Creek (b) basins 31 5. Valley slope as a function of Strahler

Beached Bones: Exploring the Genetic Impact of Exploitation on the Diversity of Great Whales in the South Atlantic

Creator:: Sremba, Angela L.
Abstract:: Commercial whaling during the 20th century drastically reduced many populations of great whales in the Southern Hemisphere. The Antarctic blue whale, for example, is estimated to have been reduced to less than 0.1% of its original abundance based on catch records and population dynamic models. Despite this population bottleneck, several...
Resource Type:: Dissertation
Full Text:: Antarctic Peninsula (AP) and South Georgia (SG) in February and March 2016. ............40 Table 2.5

Greater sage-grouse reproductive ecology : linkages among habitat resources, maternal nutrition, and chick survival

Creator:: Gregg, Michael A.
Abstract:: Greater sage-grouse (Centrocercus urophasianus) populations declined range wide during the past 50 years. Grouse populations were 2-3 times larger than the current population as recently as the early 1970's. In addition to habitat loss and fragmentation, declines were attributed habitat degradation that caused reduced productivity. Because chick survival remains the...
Resource Type:: Dissertation
Full Text:: -incubating greater sage-grouse 31 Nutrient content of primary plant species consumed by pre-incubating

Impacts of Range Management Decisions on Native Pollinators: Innovative Grazing Practices and Riparian Restoration

Creator:: Mitchell, Scott R.
Abstract:: Animal pollination is critical to plant reproduction in agricultural and wildland ecosystems. Much of the production of seeds and fruits in natural areas, which underlie many food webs, depends on pollination services by insects. The taxon responsible for delivering the bulk of these services in most temperate systems is bees....
Resource Type:: Masters Thesis
Full Text:: ................................................................ 31 2.4: Short-term effects of cattle grazing

Home range and habitat use by Roosevelt elk in Olympic National Park, Washington

Creator:: Jenkins, Kurt Jeffrey
Abstract:: This research provides information on the distribution of an unexploited Roosevelt elk population in unaltered habitat in Olympic National Park. Radio-telemetry was used to document home range and habitat use by 11 adult cow elk in the Hoh Valley during March 1978, from 10 June-15 September 1978, and from 1...
Resource Type:: Masters Thesis
Full Text:: Home Range Groups 27 Home Range and Movements 28 Habitat Use 29 RESULTS 31 Accuracy of Radio Telemetry

Population Differentiation in two Northeastern Pacific Marine Species

Creator:: Curran, Lorne Sullivan
Abstract:: Population genetic techniques are now preeminent in differentiating wild populations. Natural resource managers rely on them in their efforts to restore viable populations of fish and wildlife. Overfishing adversely impacted Yelloweye Rockfish (Sebastes ruberrimus) on the U.S. West Coast in the late 20th century. Management actions included shutting down the...
Resource Type:: Masters Thesis
Full Text:: …………………………………………………………………………………………………………….....31 2.5 EIGENSOFT SMARTPCA analysis on 213-sample set. All clusters displayed

Riverscape genetics of Oncorhynchus tshawytscha (Chinook salmon) in Siletz River, OR

Creator:: Davis, Chanté D.
Abstract:: Traditional analysis in population genetics evaluates differences among groups of individuals and, in some cases, considers the effects of distance or potential barriers to gene flow. However, many forces may shape genetic variation of organisms in riverine systems. Similarly complex research linking habitat heterogeneity and configuration to genetic structure has...
Resource Type:: Dissertation
Full Text:: ........................................................................................................................... 31 Environmental data

ScholarsArchive@OSU

All in a DNA's work : conservation genetics and monitoring of the New Zealand endemic Maui's and Hector's dolphins

Endocrine regulation of final oocyte maturation and sex differentiation in salmonids

Sexual maturation of coho salmon (Oncorhynchus kisutch) : induced ovulation, in vitro induction of final maturation and ovulation, and serum hormone and ion levels of salmon in seawater and fresh water

Cumulative effects of land use on salmon habitat in southwest Oregon coastal streams

Beached Bones: Exploring the Genetic Impact of Exploitation on the Diversity of Great Whales in the South Atlantic

Greater sage-grouse reproductive ecology : linkages among habitat resources, maternal nutrition, and chick survival

Impacts of Range Management Decisions on Native Pollinators: Innovative Grazing Practices and Riparian Restoration

Home range and habitat use by Roosevelt elk in Olympic National Park, Washington

Population Differentiation in two Northeastern Pacific Marine Species

Riverscape genetics of Oncorhynchus tshawytscha (Chinook salmon) in Siletz River, OR

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