Index Catalog // ScholarsArchive@OSU

Shrimp adjust their sex ratio to fluctuating age distributions

Creator:: Charnov, Eric L. and Hannah, Robert W.
Abstract:: Long-term data sets that quantitatively confirm basic ecological theory are rare for field populations. Highly variable recruitment often causes wide temporal variation in population age distribution and basic theory for adaptive sex ratio often predicts ‘sex ratio tracking’ to match the fluctuating age distribution. Using sex-changing shrimp as a model...
Resource Type:: Article
Full Text:: statement on the inside front cover for non-commercial copying policies. Evolutionary Ecology Research

Using evolutionary economics to explain predator-prey anomalies in the fisheries or explaining micky mouse's ears

Creator:: Wilson, James R.
Abstract:: The development of several sub-fields of general economics, including those of bounded rationality, institutional economics and the evolutionary economics, has expanded the scope and intensity of the dialogue both within economics, as well as between economists and other scientists. One of the more important preoccupations of early evolutionary economics was...
Resource Type:: Research Paper
Full Text:: Using evolutionary economics to explain

Range Field Day 2008 progress report

Creator:: Oregon State University. Agricultural Experiment Station, Oregon State University. Department of Rangeland Ecology and Management, and Eastern Oregon Agricultural Research Center
Resource Type:: Technical Report
Full Text:: . Eastern Oregon Agricultural Research Center Department of Range Ecology and Management Oregon State

Watershed response to western juniper control

Creator:: Deboodt, Timothy L.
Abstract:: Western juniper (Juniperus occidentalis) encroachment has been associated with increased soil loss and reduced infiltration resulting in the loss of native herbaceous plant communities and the bird and animal species that rely on them. Hydrologically, however, change in water yield has been linked with the amount of annual precipitation a...
Resource Type:: Dissertation
Full Text:: Ecology and Management presented on May 8, 2008. Title: Watershed Response to Western Juniper

Seed bank response to juniper expansion in the semi-arid lands of Oregon, USA

Creator:: Duncan, Corinne M.
Abstract:: Expansion of Juniperus occidentalis into the sagebrush steppe has resulted in significant changes in understory composition. A consequence of increased J. occidentalis dominance may be a depletion of the seed bank. The potential for depletion is problematic because a reduction in the amount of species available from the seed bank...
Resource Type:: Masters Thesis
Full Text:: . Seed Bank Ecology in Semi-arid Environments Review of the Literature Unfortunately, research

Evolutionary relationships among Pinus (Pinaceae) subsections inferred from multiple low-copy nuclear loci

Creator:: Syring, John, Willyard, Ann, Cronn, Richard, and Liston, Aaron
Abstract:: Sequence data from nrITS and cpDNA have failed to fully resolve phylogenetic relationships among Pinus species. Four low‐copy nuclear genes, developed from the screening of 73 mapped conifer anchor loci, were sequenced from 12 species representing all subsections. Individual loci do not uniformly support either the nrITS or cpDNA hypotheses...
Resource Type:: Article
Full Text:: (12): 2086–2100. 2005. EVOLUTIONARY RELATIONSHIPS AMONG PINUS (PINACEAE) SUBSECTIONS INFERRED FROM

Himalayan blackberry (Rubus armeniacus) and English ivy (Hedera helix) response to high intensity-short duration goat browsing

Creator:: Ingham, Claudia S.
Abstract:: The goal of this dissertation is to examine the effectiveness of high intensity-short duration goat browsing for the control of Himalayan blackberry (Rubus armeniacus) and English ivy (Hedera helix), two widespread noxious weeds in the Pacific Northwest. The effects of goat browsing on Himalayan blackberry vigor, as quantified by densities...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Claudia S. Ingham for the degree of Doctor of Philosophy in Rangeland Ecology and

Establishing native plants in crested wheatgrass stands using successional management

Creator:: Fansler, Valerie A.
Abstract:: Crested wheatgrass (Agropyron cristatum (L.) Gaertn.) is a nonindigenous perennial grass that was introduced to North America to improve the condition of degraded rangelands. It has proven to be a successful revegetation species due to its superior ease of establishment, strong competitive ability, and ability to tolerate grazing. However, crested...
Resource Type:: Masters Thesis
Full Text:: OF Valerie A. Fansler for the degree of Master of Science in Rangeland Ecology and

Habitat parameters associated with the distribution of seven willow species on a stream in southeastern Oregon

Creator:: Gilbert, Griffith J.
Abstract:: Thirteen different habitat parameters were measured either quantitatively or qualitatively around seven different Salix (willow) species on a defined reach of stream on the southwestern slope of Steens Mountain in southeastern Oregon in order to both broaden the current information base of riparian ecology and inform future willow plantings aimed...
Resource Type:: Masters Thesis
Full Text:: Southeastern Oregon CHAPTER 1 Introduction Context of the Research Riparian Ecology Riparian plant

Ecology of Craterellus tubaeformis in western Oregon

Creator:: Trappe, Matthew James
Abstract:: Craterellus tubaeformis is a small to medium-sized forest mushroom that is fairly common in the Douglas-fir/western hemlock forests of the Pacific Northwestern United States and is most often associated with decayed coarse woody debris. In this study, the mycorrhizae of Craterellus tubaeformis in western Oregon is identified by DNA analysis...
Resource Type:: Masters Thesis
Full Text:: Ecology of Craterellus tubaeformis in Western Oregon: An Introduction INTRODUCTION Basis for research

ScholarsArchive@OSU

Shrimp adjust their sex ratio to fluctuating age distributions

Using evolutionary economics to explain predator-prey anomalies in the fisheries or explaining micky mouse's ears

Range Field Day 2008 progress report

Watershed response to western juniper control

Seed bank response to juniper expansion in the semi-arid lands of Oregon, USA

Evolutionary relationships among Pinus (Pinaceae) subsections inferred from multiple low-copy nuclear loci

Himalayan blackberry (Rubus armeniacus) and English ivy (Hedera helix) response to high intensity-short duration goat browsing

Establishing native plants in crested wheatgrass stands using successional management

Habitat parameters associated with the distribution of seven willow species on a stream in southeastern Oregon

Ecology of Craterellus tubaeformis in western Oregon

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