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Filtering by: Committee Member Christensen, B. E. Committee Member McEvoy, Peter B. Non-Academic Affiliation Oregon State University. Graduate School

Predators associated with hemlock woolly adelgid (Hemiptera: Adelgidae) infested western hemlock in the Pacific Northwest.

Creator:

Kohler, Glenn R.

Abstract:

The hemlock woolly adelgid, Adelges tsugae, is causing widespread mortality of eastern hemlock, Tsuga canadensis, in the eastern United States. In the West, A. tsugae causes negligible damage to western hemlock, Tsuga heterophylla. Host tolerance traits and presence of endemic predators may be contributing to the relative tolerance of western...

Resource Type:

Masters Thesis

Full Text:

Peter B. McEvoy, Darrell W. Ross, and Kimberly F. Wallin provided essential direction and feedback for
Non-spatial and spatial models for multi-host pathogen spread in competing species : applications to barley yellow dwarf virus and rinderpest

Creator:

Manore, Carrie Anna

Abstract:

Modeling and analyzing the combined effects of disease and population dynamics is important in understanding the effects of mechanisms such as pathogen transmission and direct competition between host species on the distribution and abundance of different species in an ecological community. Mathematical analysis of such models in a spatially explicit...

Resource Type:

Dissertation

Full Text:

. . . . . . . . . . . . . . . . . . . . 116 5.2 The B/CYDV Empirical System
Phenotypic variation in the sexual attractiveness pheromone of the red-sided garter snake, Thamnophis sirtalis parietalis

Creator:

LeMaster, Michael P.

Abstract:

Pheromones are chemical cues produced by organisms that affect the behavior and/or physiology of conspecifics. The orchestration of reproductive behaviors in many animals depends on the expression of sex pheromones. In insects, intraspecific variation in sex pheromone expression is commonly observed and often influences social interactions between individuals. To what...

Resource Type:

Dissertation

Full Text:

. Houck, Michael S. Blouin, Martin S. Fitzpatrick, David E. Williams, and Peter B. McEvoy for the

ScholarsArchive@OSU

Predators associated with hemlock woolly adelgid (Hemiptera: Adelgidae) infested western hemlock in the Pacific Northwest.

Non-spatial and spatial models for multi-host pathogen spread in competing species : applications to barley yellow dwarf virus and rinderpest

Phenotypic variation in the sexual attractiveness pheromone of the red-sided garter snake, Thamnophis sirtalis parietalis

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