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

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 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

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

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

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

General Catalog 2017-2018

Creator:: Oregon State University
Resource Type:: Other

General Catalog 2016-2017

Creator:: Oregon State University
Resource Type:: Other

ScholarsArchive@OSU

Complexity of food web interactions in a large mammal system

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

Resilience in Quaking Aspen: Recent advances and future needs

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

Focus ; Fall 2012

Linking top-down forces to the pleistocene megafaunal extinctions

Chasing Tails: Stories for Refining Relationships Between Wolves & Humans

Quaking aspen persistence in three Oregon landscapes

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

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

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

General Catalog 2017-2018

General Catalog 2016-2017

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