Index Catalog // ScholarsArchive@OSU

Complexity of food web interactions in a large mammal system

Creator:: Eisenberg, Cristina
Abstract:: Food webs consist of a combination of bottom-up (resource-driven) and top-down (predator-driven) effects. The strength of these effects depends on the context in which they occur. I investigated food web (trophic) relationships between wolf (Canis lupus) predation, elk (Cervus elaphus) herbivory, aspen (Populus tremuloides Michaux) recruitment, and fire. The study...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Cristina Eisenberg

Investigating Calving Areas for Rocky Mountain Elk on the Plumas National Forest: Implications for Land Management

Creator:: Marshall, Abigail C.
Abstract:: Sustainable elk (Cervus canadensis) habitat management on U.S. Forest Service (USFS) lands involves a complex relationship between management practices and ecological processes. A relatively novel Rocky Mountain elk population (Cervus canadensis nelsoni) on the Plumas National Forest (PNF) in northeastern California became established in the early 2000s, but there is...
Resource Type:: Capstone Project
Full Text:: . Acknowledgements Thank you to Brenda McComb (Graduate Advisor, Dean Emeritus OSU), Cristina Eisenberg (Graduate

Wolf, Elk, and Aspen Food Web Relationships: Context and Complexity

Creator:: Eisenberg, Cristina, Seager, S. Trent, and Hibbs, David E.
Abstract:: Like most ecological communities, aspen (Populus tremuloides) forests are influenced by a synergy of bottom-up (resources-driven) and top-down (predator-driven) processes. Since the 1920s, ecologists have observed the decline of many aspen communities throughout the Intermountain West. The extent and possible drivers of this decline are topics of much recent scientific...
Resource Type:: Article
Full Text:: Relationships: Context and Complexity Cristina Eisenberg, S Trent Seager, and David E. Hibbs Abstract

Resilience in Quaking Aspen: Recent advances and future needs

Creator:: Rogers, Paul C., Eisenberg, Cristina, and St. Clair, Samuel B.
Abstract:: Quaking aspen (Populus tremuloides) sustainability is a topic of intense interest in forest ecology. Reports range from declines to persisting or increasing coverage in some areas. Moreover, there is little agreement on ultimate factors driving changes. Low aspen recruitment has been attributed to climate patterns, past management, herbivore increases, competitive...
Resource Type:: Article
Full Text:: Ph: (435)797-0194 9 email: p.rogers@usu.edu 10 11 Cristina Eisenberg 12 Department of Forest

Reducing Livestock Effects on Public Lands in the Western United States as the Climate Changes: A Reply to Svejcar et al.

Creator:: Beschta, Robert L., Donahue, Debra L., DellaSala, Dominick A., Rhodes, Jonathan J., Karr, James R., O'Brien, Mary H., Fleischner, Thomas L., and Williams, Cindy Deacon
Abstract:: Beschta et al. (2013) synthesized the ecological effects 41 of climate change and ungulate grazing on western public lands, grounding their recommendations in ecological considerations and federal agency legal authority and obligations. Svejcar et al. (2014) suggest that Beschta et al. (2013) neither “present a balanced synthesis of the scientific...
Resource Type:: Article
Full Text:: , Cristina Eisenberg C, Clair SB (2013) Patterns and consequences of ungulate 202 herbivory on aspen in

Focus ; Fall 2012

Creator:: Oregon State University. College of Forestry
Abstract:: Focus is published by Oregon State University College of Forestry. Our goal is to keep Forestry alumni, friends, faculty, staff, and students informed about the College of Forestry and its many activities and programs.
Resource Type:: Other
Full Text:: growth, vegetation community develop- ment, and physiology of selected weedy plant species Cristina

Linking Wolves and Plants: Aldo Leopold on Trophic Cascades

Creator:: Ripple, William J. and Beschta, Robert L.
Abstract:: Aldo Leopold, perhaps best known for his revolutionary and poignant essays about nature, was also an eloquent advocate during the 1930s and 1940s of the need to maintain wolves and other large carnivores in forest and range ecosystems.He indicated that their loss set the stage for ungulate irruptions and ecosystem...
Resource Type:: Article
Full Text:: to the mountain. Acknowledgments We thank Cristina Eisenberg, Jim Estes, Werner Flueck, Curt Meine

Evidence of a trophic cascade among wolves, elk, and aspen in Yellowstone National Park, USA

Creator:: Halofsky, Joshua S.
Abstract:: According to general top-down trophic theory, in the presence of carnivores, herbivore behavior and/or densities could change and result in an overall decrease in herbivory on plant communities. In this dissertation, I examined the potential relationship between gray wolf (Canis lupus) presence and absence on elk (Cervus elaphus) herbivory of...
Resource Type:: Dissertation
Full Text:: Beschta, Dr. Jeff Hollenbeck, and Cristina Eisenberg for their input and thoughts on the various

Linking top-down forces to the pleistocene megafaunal extinctions

Creator:: Ripple, William J. and Van Valkenburgh, Blaire
Abstract:: Humans, in conjunction with natural top-down processes and through a sequence of cascading trophic interactions, may have contributed to the Pleistocene megafaunal extinctions. The arrival of the first humans, as hunters and scavengers, through top-down forcing, could have triggered a population collapse of large herbivores and their predators. We present...
Resource Type:: Article
Full Text:: Pigott Burney, Diana Raper, Chris Johnson, Cristina Eisenberg, Luke Painter, Gary Haynes, and two

Chasing Tails: Stories for Refining Relationships Between Wolves & Humans

Creator:: Beggen, Kristina
Abstract:: As wolves return to their historic habitats both in Oregon and across the globe, emotions are running high between people either gladdened or disturbed by their homecoming. Prior to colonization, wolves occupied the entire Pacific Northwest alongside Indigenous peoples. However, European settlements that ultimately coalesced to form the state of...
Resource Type:: Masters Thesis

Focus ; Fall 2008

Creator:: Oregon State University. College of Forestry
Abstract:: Focus is published by Oregon State University College of Forestry. Our goal is to keep Forestry alumni, friends, faculty, staff, and students informed about the College of Forestry and its many activities and programs.
Resource Type:: Other

Quaking aspen persistence in three Oregon landscapes

Creator:: Seager, S. Trent
Abstract:: Quaking aspen (Populus tremuloides) is an important tree species in the western United States and there has been much concern about its persistence. In this thesis, I report on aspen in a portion of its range that has not been previously evaluated: the eastern and western slopes of the Central...
Resource Type:: Masters Thesis
Full Text:: insight into fire ecology in dry pine systems and gave me feedback on my fire ideas. Cristina Eisenberg

2007-2008 Biennial report for the College of Forestry and the Oregon Forest Research Laboratory / Oregon State University

Creator:: Oregon State University. Forest Research Laboratory and Oregon State University. College of Forestry
Resource Type:: Other
Full Text:: citations over a recent 5-year period. Forestry students Daniel Donato and • Cristina Eisenberg were

An interdisciplinary framework for evaluating 19th century landscape paintings for ecological research

Creator:: Warren, Dana R., Loeb, Harper M., Betjemann, Peter, Munck, Isabel A., Keeton, William S., Shaw, David C., and Harvey, Eleanor J.
Abstract:: As we contemplate the future of forest landscapes under changing climate conditions and land-use demands, there is increasing value in studying historic forest conditions and how these landscapes have changed following past disturbances. Historic landscape paintings are a potential source of data on preindustrial forests with highly detailed, full-color depictions...
Resource Type:: Article

Competition release and climate change effects on a moisture-demanding tree species in a dry system

Creator:: Seager, S. Trent
Abstract:: Climate change and the increase in meteorological drought have generated global concern over the persistence of ecosystems already in decline from decreased moisture. Evidence suggests dryland ecosystems have been more impacted by drought because of their tightly coupled growth-water relationships and high sensitivity to environmental shift. Removal of competing vegetation...
Resource Type:: Dissertation
Full Text:: Sangsupan, Harold Zald, and Dalton Hance. This journey began when my friend Cristina Eisenberg approached

Aspen Drought Stress Response, Snow Cover and Soil Moisture Dynamics on an Oregon Bunchgrass Prairie

Creator:: Neary, Andrew
Abstract:: Quaking aspen, Populus tremuloides, has experienced severe declines in recent years in part due to the effects of changing climate and extreme drought. As the dominant deciduous tree in Western North American forests, aspen plays a critical role in forest biodiversity and ecosystem function. Therefore, the persistence of this species...
Resource Type:: Masters Thesis

“Only a little longer, right?” : oral histories of the Oregon State University Wind Ensemble during the COVID-19 pandemic

Creator:: Gibbs, Madeline
Abstract:: Music performance and education faced unique barriers during the COVID-19 global pandemic which made it nearly impossible to effectively implement online learning. To better understand these barriers and what improvements might be made during future pandemics that entail periods of isolation, I collected the oral histories of eight Oregon State...
Resource Type:: Honors College Thesis

2023 Summer OSU Corvallis Campus schedule of classes

Creator:: Oregon State University
Resource Type:: Other

Karuk Stewardship of Xánthiip (black oak, Quercus kelloggii) in the Western Klamath Mountains: Development of an Ecocultural Monitoring Protocol

Creator:: Thoreson, Jessie
Abstract:: My thesis is an exploration of xánthiip (Karuk for black oak, Quercus kelloggii) restoration within the Karuk Tribe’s Ancestral Territory in present-day northwestern California. Black oak is a cultural keystone species for the Karuk and has been chosen as one of the species to guide Tribally led forest restoration work...
Resource Type:: Masters Thesis
Full Text:: Adlam, Amanda Rau, Bruce McCune, James Johnston, Cristina Eisenburg, Ashley D’Antonio, Gail Woodside

Virtual virtuosos : cyborgs and integrative ethics in the intimate machine

Creator:: Clemenhagen, Ronda L.
Abstract:: Standard accounts of women's relationship with technology stress women's need to overcome anxiety to achieve competence with computers. Recent studies provide evidence that this woman-anxiety-technology connection is an oversimplification of the relationship between women and computers. New literature also suggests that making computers more appealing will help girls overcome computational...
Resource Type:: Masters Thesis
Full Text:: , Camp et al, Chea, Collins, Eisenberg, Furger, Guidera, Klein, Jesdanun). The problem is typically

An examination of climate and land-use change as drivers of population dynamics in breeding birds

Creator:: Kim, Hankyu
Abstract:: Anthropogenic land-cover change and climate change are the major drivers of the steep loss of avian biodiversity in past decades. Loss of avian biodiversity is predicted to result in the reduction of ecosystem services and ecological functions. Identifying avian population changes and the drivers of these trajectories is essential for...
Resource Type:: Dissertation
Full Text:: have done with me. In the earlier part of my doctoral program, Cristina Eisenberg gave me invaluable

Limitations to Seedling Regeneration on Tropical Forest Restoration Plantations in Northern Thailand

Creator:: Sangsupan, Hathai A.
Abstract:: This dissertation investigated potential ecological limitations to seedling regeneration in young, seasonally dry, evergreen forest restoration plantations in northern Thailand. We explored whether recruitment of colonizing tree species in the restoration plantations can be attributed to seed dispersal mode (i.e. abiotic or animal dispersal) and seed size. We did this...
Resource Type:: Dissertation
Full Text:: research assistants, Trent Seager, Cristina Eisenberg, Diana Raper, Amy Nathanson, Suphannika Inthanon

2023 Winter OSU Corvallis Campus schedule of classes

Creator:: Oregon State University
Resource Type:: Other

Regeneration and growth of several canopy tree species in the Maya Forest of Quintana Roo, Mexico : the role of competition and microhabitat conditions

Creator:: Sorensen, NaDene S.
Abstract:: We evaluated the regeneration behavior and early growth rates of 10 non-pioneer canopy tree species in medium-height, semi-evergreen dry tropical forest in Quintana Roo, Mexico. These species provide timber and non-timber forest products for local communities and include evergreen and deciduous species with varied dispersal mechanisms. The species were Coccoloba...
Resource Type:: Dissertation
Full Text:: the text. Thanks to Cristina Eisenberg for her friendship and editing of Chapter 3. In Mexico my

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