Index Catalog // ScholarsArchive@OSU

The Influence of Alternate Life History Strategies and Natal Conditions on the Reproductive Performance of Adélie Penguins Breeding on Ross Island, Antarctica

Creator:: Kappes, Peter J.
Abstract:: A fundamental objective of ecology and population biology is to identify factors that drive population dynamics and determine the population-level consequences of their interaction with the environment. Studies of reproductive performance can illuminate population dynamic processes, including the links between organismal biology, the environment, and life history theory. A central...
Resource Type:: Dissertation
Full Text:: -offs associated with alternative life-history strategies (Conroy 2009) and the evolution of

Spatiotemporal Associations of Abundance and Vital Rates of Co-occurring Small Mammals in a Late Successional Forest

Creator:: Weldy, Matthew J.
Abstract:: Informed conservation of small mammals, ecosystems, and predators requires a detailed understanding of how small mammals species and communities vary in both space and time, as well as the relative cyclicity and synchrony of this variation. This variation can be especially informative to land managers interested in manipulating the abundance...
Resource Type:: Masters Thesis
Full Text:: Page 2.1 Location of our study sites in the H. J. Andrews Experimental Forest, in central

Morphological changes in introduced eastern cottontails in Oregon

Creator:: Rhodes, Mark Nicolas
Abstract:: Descendants of eastern cottontails from Ohio (Sylvilagns floridanus) introduced in Benton County, Oregon and cottontails from Ohio were sampled and analyzed morphometrically and colorimetrically. In general, Oregon cottontails were smaller and lighter in color than Ohio rabbits. Introgression and interspecific competition with the smaller and darker colored native brush rabbit...
Resource Type:: Masters Thesis
Full Text:: in Oregon Redacted for Privacy Abstract approved: B. J. Verts Descendants of eastern cottontails

American marten distributions over a 28 year period : relationships with landscape change in Sagehen Creek Experimental Forest, California, USA

Creator:: Moriarty, Katie M.
Abstract:: The distribution of American martens (Martes americana) within Sagehen Creek Experimental Forest (SCEF), Tahoe National Forest, California has been periodically documented from 1980–1993. This area has been the location of nine marten surveys, each involving a systematic detection/nondetection survey on the same grid. These data are an unprecedented time series...
Resource Type:: Masters Thesis
Full Text:: Service provided additional survey equipment; thanks to J. Scott Yaeger for the generous loans. The

A morphometric analysis of geographic variation within Sorex monticolus

Creator:: Alexander, Lois F.
Abstract:: Shrews previously recognized as Sorex monticolus were classified into two species (one with 14 subspecies, the other monotypic) on the basis of a morphometric analysis of 3610 individuals from throughout their range. Sorex m. neomexicanus has been recognized previously as a subspecies of Sorex monticolus but is recognized herein as...
Resource Type:: Masters Thesis
Full Text:: . Alexander Redacted for privacy Redacted for privacy Redacted for privacy ACKNOWLEDGMENTS I thank B. J

Biodiversity in managed forests of western Oregon : species assemblages in leave islands, thinned, and unthinned forests

Creator:: Wessell, Stephanie J.
Abstract:: Both leave islands, or green tree retention clusters, and thinning prescriptions have been proposed as alternative silvicultural strategies designed to sustain the structural and biological diversity of managed forests. However, the relationship of the physical structure of leave islands and thinned forests to their associated microclimates, flora, and fauna remain...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Stephanie J. Wessell for the

Behavioral constraints on harlequin duck population recovery from the Exxon Valdez oil spill in Prince William Sound, Alaska

Creator:: Rizzolo, Daniel J.
Abstract:: I investigated the relationship between harlequin duck (Histrionicus histrionicus) behavior and lack of recovery from the Exxon Valdez oil spill in Prince William Sound, Alaska. First, I evaluated the hypothesis that harlequin ducks in winter have little flexibility to increase foraging time in response to disturbance because they are constrained...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Daniel J. Rizzolo for the degree

Movement Ecology and Population Dynamics of the Endangered Hawaiian Duck (Anas wyvilliana)

Creator:: Malachowski, Christopher P.
Abstract:: Fundamental objectives in the field of conservation biology involve understanding the processes that influence small and declining populations and applying that knowledge to develop appropriate monitoring strategies and targeted management and conservation actions. Critical first steps in determining the relative role of factors that drive population declines involves estimation of...
Resource Type:: Dissertation
Full Text:: DABBLING DUCK Christopher P. Malachowski, Bruce D. Dugger, Kimberly J. Uyehara, and Michelle H

Improving ecological risk assessment of pesticides for nontarget terrestrial vertebrates

Creator:: Wang, Guiming
Abstract:: The Quotient Method (QM) is used by the United States Environmental Protection Agency (USEPA) in ecological risk assessments of pesticides for nontarget organisms. The QM requires several assumptions regarding exposure and hazards of pesticides to wildlife; several of these assumptions have not been tested. During 1997-99, I conducted three experiments...
Resource Type:: Dissertation
Full Text:: biologists for over three decades (Carson, 1962; Hoffman et aI., 1990; Kendall and Akerman, 1992; Pimentel

Foraging ecology of barred owls where they are outcompeting the threatened northern spotted owl

Creator:: Baumbusch, Ryan C.
Abstract:: Following European-American colonization of North America and associated landscape changes, barred owls (Strix varia) underwent a dramatic expansion of their historical range. The barred owl expanded across the previously tree-less Great Plains that had limited their distribution, and into the forests along the west coast. In these western forests they...
Resource Type:: Dissertation
Full Text:: ______________________________________________________ J. David Wiens Following European-American colonization of North America and associated

ScholarsArchive@OSU

The Influence of Alternate Life History Strategies and Natal Conditions on the Reproductive Performance of Adélie Penguins Breeding on Ross Island, Antarctica

Spatiotemporal Associations of Abundance and Vital Rates of Co-occurring Small Mammals in a Late Successional Forest

Morphological changes in introduced eastern cottontails in Oregon

American marten distributions over a 28 year period : relationships with landscape change in Sagehen Creek Experimental Forest, California, USA

A morphometric analysis of geographic variation within Sorex monticolus

Biodiversity in managed forests of western Oregon : species assemblages in leave islands, thinned, and unthinned forests

Behavioral constraints on harlequin duck population recovery from the Exxon Valdez oil spill in Prince William Sound, Alaska

Movement Ecology and Population Dynamics of the Endangered Hawaiian Duck (Anas wyvilliana)

Improving ecological risk assessment of pesticides for nontarget terrestrial vertebrates

Foraging ecology of barred owls where they are outcompeting the threatened northern spotted owl

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