Index Catalog // ScholarsArchive@OSU

Hawaiian duck (Anas wyvilliana) behavior and response to wetland habitat management at Hanalei National Wildlife Refuge on Kaua'i

Creator:: Malachowski, Christopher P.
Abstract:: The endangered Hawaiian Duck (koloa maoli; Anas wyvilliana), a non-migratory and island-endemic species, experienced a significant population decline during the twentieth century due to factors such as habitat loss, overharvest, introduced mammalian predators, and hybridization with introduced feral Mallards (A. platyrhynchos). A key objective for Hawaiian Duck recovery is to...
Resource Type:: Masters Thesis
Full Text:: wetlands, birds foraged slightly more with increasing cover of Cyperus spp. (r = 0.18, P < 0.001) and

The effects of different otolith ageing techniques on estimates of growth and mortality for two species of rockfishes, Sebastes pinniger and Sebastes diploproa

Creator:: Wilson, Christopher D.
Abstract:: The use of some age determination methods may result in the incorrect age structure of fish populations. This in turn may lead to incorporation of inappropriate data into models used for stock management. Otoliths are commonly used for determining the age of fishes, and ages based on the whole otoliths...
Resource Type:: Masters Thesis
Full Text:: chi-square tests (1 df) on C., k, t and Co between section and surface ages for Sebastes diploproa

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:: Alan T. Herlihy An estimated 99% of native wet prairie has been

Mechanisms affecting the bioaccumulation of dietary quinoline by rainbow trout (Salmo gairdneri)

Creator:: Dauble, Dennis D.
Abstract:: Factors that influenced the uptake, storage, and elimination of dietary quinoline by rainbow trout (Salmo gairdneri) were studied to obtain an understanding of the mechanisms affecting the bioaccumulation of dietary contaminants in teleosts. Rainbow trout readily absorbed ¹⁴C-quinoline from pelleted food (1% ration at 138 ug quinoline/g food) and most...
Resource Type:: Dissertation
Full Text:: . ca, 60 7340 0 't 20 a. 0 670 ng Equivalent Quinoline a) Cl) z 2 C) 0 cyo >- c (7; > L9 a

Bottom-up Drivers of Primary Producers and Predator Populations in Oregon Streams

Creator:: Kaylor, Matthew J.
Abstract:: Humans have drastically altered the physical habitat and food web structure of stream ecosystems. Two major impacts humans have had on Pacific Northwest streams are modification of streamside forests (as a result of agriculture, land development, and timber harvest), and declines in the return of wild anadromous salmon to headwater...
Resource Type:: Dissertation
Full Text:: Oregon Streams Abstract approved: ______________________________________________________ Dana R

Phylogeny and zoogeography of Laemonema (Pisces; Gadiformes; Moridae)

Creator:: Meléndez, Roberto C.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Roberto C. Melendez for the degree

Human Alteration of a Neotropical Landscape Drives Long-term Changes in its Forest Bird Communities

Creator:: Curtis, Jenna R.
Abstract:: Human alteration of natural landscapes leads to biodiversity loss, often from a combination of area effects and fragmentation effects. Smaller habitat patches support fewer species than large ones and incur additional consequences from isolation. Efforts to preempt biodiversity loss from insular habitat fragments are complicated by individualistic species responses and...
Resource Type:: Dissertation
Full Text:: area. Journal of Ecology 9:95–99. Bierregaard, R. O., T. E. Lovejoy, V. Kapos, A. A. dos Santos, and

Functional relationships among vegetation, nocturnal insects, and bats in riparian areas of the Oregon Coast Range

Creator:: Ober, Holly K.
Abstract:: Vegetation provides food for many insects, and many insects serve as food for bats. We investigated the linkages among these three trophic levels in riparian areas throughout the Oregon Coast Range by examining the influence of vegetation cover, composition, and structure on the activity of nocturnal insects and bats, the...
Resource Type:: Dissertation
Full Text:: -213. Hobbs, S. D., Hayes, J. P., R. L. Johnson, G. H. Reeves, T. A. Spies, and J. C. Tappeiner II

Resource Selection and Space Use of Western Long-eared Myotis (Myotis evotis) in a Western Juniper (Juniperus occidentalis) Woodland of Central Oregon

Creator:: Anthony, Christopher R.
Abstract:: Identifying habitat and spatial requirements of wildlife species across multiple spatial scales is a challenging, yet crucial component of wildlife management. Habitat use of bats is particularly difficult to study, and managing habitat to conserve bats is especially challenging because bats are highly vagile organisms that exploit several different types...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Christopher R

Born to run? Integrating individual behavior, physiology, and life histories in partially migratory steelhead and rainbow trout (Oncorhynchus mykiss)

Creator:: Sloat, Matthew R.
Abstract:: Steelhead and rainbow trout are common names for marine-migratory (anadromous) and freshwater-resident forms of Oncorhynchus mykiss, a partially migratory salmonid fish. Anadromous and resident forms are sympatric and can produce offspring with a life history different from their own (i.e., steelhead parents can produce rainbow trout offspring and vice versa)....
Resource Type:: Dissertation
Full Text:: ) AN ABSTRACT OF THE DISSERATION OF Matthew R. Sloat for the degree of Doctor of Philosophy in

ScholarsArchive@OSU

Hawaiian duck (Anas wyvilliana) behavior and response to wetland habitat management at Hanalei National Wildlife Refuge on Kaua'i

The effects of different otolith ageing techniques on estimates of growth and mortality for two species of rockfishes, Sebastes pinniger and Sebastes diploproa

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

Mechanisms affecting the bioaccumulation of dietary quinoline by rainbow trout (Salmo gairdneri)

Bottom-up Drivers of Primary Producers and Predator Populations in Oregon Streams

Phylogeny and zoogeography of Laemonema (Pisces; Gadiformes; Moridae)

Human Alteration of a Neotropical Landscape Drives Long-term Changes in its Forest Bird Communities

Functional relationships among vegetation, nocturnal insects, and bats in riparian areas of the Oregon Coast Range

Resource Selection and Space Use of Western Long-eared Myotis (Myotis evotis) in a Western Juniper (Juniperus occidentalis) Woodland of Central Oregon

Born to run? Integrating individual behavior, physiology, and life histories in partially migratory steelhead and rainbow trout (Oncorhynchus mykiss)

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