Index Catalog // ScholarsArchive@OSU

Bottom-up and top-down forces in tidepools : the influence of nutrients, herbivores, and wave exposure on community structure

Creator:: Nielsen, Karina Johanna
Abstract:: The relationship between nutrients and community structure is poorly understood in open-coast habitats. I created a system of artificial tidepools, of identical age and physical dimensions, at two sites that differed in wave exposure, and manipulated nutrient levels and the abundance of herbivores. Using these unique field mesocosms, I explored...
Resource Type:: Dissertation
Full Text:: thesis of Karina J. Nielsen presented on August 27, 1998 APPROVED: Co-Major Pro ssor, representing

The complex net effect of reciprocal interactions and recruitment facilitation maintains an intertidal kelp community

Creator:: Barner, Allison K., Hacker, Sally D., Menge, Bruce A., and Nielsen, Karina J.
Abstract:: 1. Theoretical and empirical ecology has transitioned from a focus on the role of negative interactions in species coexistence to a more pluralistic view that acknowledges that coexistence in natural communities is more complex, and depends on species interactions that vary in strength, sign, and reciprocity, and such contexts as...
Resource Type:: Article
Full Text:: ,*, Sally D. Hacker1, Bruce A. Menge1 and Karina J. Nielsen2 6 7 8 1Department of Integrative

MengeBruceIntegrativeBiologyAreMetaEcosystems.pdf

Creator:: Menge, Bruce A., Gouhier, Tarik C., Hacker, Sally D., Chan, Francis, and Nielsen, Karina J.
Abstract:: Ecosystems are shaped by processes occurring and interacting over multiple temporal and spatial scales. Theory suggests such complexity can be simplified by focusing on processes sharing the same scale as the pattern of interest. This scale-dependent approach to studying communities has been challenged by multiscale meta-ecosystem theory, which recognizes that...
Full Text:: in rocky intertidal habitats Menge, B. A., Gouhier, T. C., Hacker, S. D., Chan, F., & Nielsen, K. J

MengeBruceIntegrativeBiologyAreMetaEcosystemsAppendix-B.pdf

Creator:: Menge, Bruce A., Gouhier, Tarik C., Hacker, Sally D., Chan, Francis, and Nielsen, Karina J.
Abstract:: Ecosystems are shaped by processes occurring and interacting over multiple temporal and spatial scales. Theory suggests such complexity can be simplified by focusing on processes sharing the same scale as the pattern of interest. This scale-dependent approach to studying communities has been challenged by multiscale meta-ecosystem theory, which recognizes that...
Full Text:: differences (e.g., sand shifting) on these local communities. LITERATURE CITED Castelao, R. M., and J. A

MengeBruceIntegrativeBiologyAreMetaEcosystemsAppendix-A.pdf

Creator:: Menge, Bruce A., Gouhier, Tarik C., Hacker, Sally D., Chan, Francis, and Nielsen, Karina J.
Abstract:: Ecosystems are shaped by processes occurring and interacting over multiple temporal and spatial scales. Theory suggests such complexity can be simplified by focusing on processes sharing the same scale as the pattern of interest. This scale-dependent approach to studying communities has been challenged by multiscale meta-ecosystem theory, which recognizes that...

Partitioning of rare earth and high field strength elements between pargasitic amphibole and silicate melts

Creator:: Hilyard, Mark D.
Resource Type:: Masters Thesis
Full Text:: Strength Elements Between Pargasitic Amphibole and Silicate Melts. Abstract approved: Roger Nielsen

Anthropogenic activities associated with the status of salmon stocks in Pacific Northwest watersheds

Creator:: Mrakovcich, Karina Lorenz
Abstract:: Stocks of salmon are declining in the Pacific Northwest. Based on region-wide studies that list and categorize the status of salmon stocks (Nehlsen et al., 1991; Huntington et al., 1994; and Nawa, 1995), I analyze the watersheds where stocks of salmon spawn for several anthropogenic variables, most of which are...
Resource Type:: Dissertation
Full Text:: stocks in Pacific Northwest watersheds AN ABSTRACT OF THE THESIS OF Karina Lorenz Mrakovcich for the

Ecological subsidies to rocky intertidal communities: Linear or non-linear changes along a consistent geographic upwelling transition?

Creator:: Krenz, Christopher, Menge, Bruce A., Freidenburg, Tess L., Lubchenco, Jane, Chan, Francis, Foley, Melissa M., and Nielsen, Karina J.
Abstract:: Through bottom–up inputs and larval transport, benthic–pelagic links can have an important effect on benthic community structure. Recent work on community structure of northeast Pacific rocky shores has focused on latitudinal differences in recruitment of intertidal invertebrates as a driver of variation in community structure. Recruitment differences are associated with...
Resource Type:: Article
Full Text:: , Francis Chan a, Melissa M. Foley c, Karina J. Nielsen d a Department of Zoology, Oregon State University

Fisherman versus management : perceptions and conflicts in the salmon fishery

Creator:: Mrakovcich, Karina Lorenz
Abstract:: Fishermen's and managers' perceptions of fishery issues are an important factor to consider when studying conflicts between the two groups. According to theories of conflict management, differences in perceptions may cause situations to be characterized by misunderstanding and mistrust, and may add to the difficulties in managing the conflict. A...
Resource Type:: Masters Thesis
Full Text:: the salmon fishery AN ABSTRACT OF THE THESIS OF Karina Lorenz Mrakovcich for the degree of Master

Experimental determination of the temperature and compositional dependences of rare earth element, Y, and Sc partitioning between high-Ca clinopyroxene and natural mafic to intermediate silicate melts

Creator:: Gallahan, William E.
Resource Type:: Masters Thesis
Full Text:: L. Nielsen To understand the differentiation of magmatic systems it is necessary to know the

ScholarsArchive@OSU

Bottom-up and top-down forces in tidepools : the influence of nutrients, herbivores, and wave exposure on community structure

The complex net effect of reciprocal interactions and recruitment facilitation maintains an intertidal kelp community

MengeBruceIntegrativeBiologyAreMetaEcosystems.pdf

MengeBruceIntegrativeBiologyAreMetaEcosystemsAppendix-B.pdf

MengeBruceIntegrativeBiologyAreMetaEcosystemsAppendix-A.pdf

Partitioning of rare earth and high field strength elements between pargasitic amphibole and silicate melts

Anthropogenic activities associated with the status of salmon stocks in Pacific Northwest watersheds

Ecological subsidies to rocky intertidal communities: Linear or non-linear changes along a consistent geographic upwelling transition?

Fisherman versus management : perceptions and conflicts in the salmon fishery

Experimental determination of the temperature and compositional dependences of rare earth element, Y, and Sc partitioning between high-Ca clinopyroxene and natural mafic to intermediate silicate melts

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