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Filtering by: Creator Richman, James Advisor Johnson, Douglas E.

Diet selection by conditioned and unconditioned goats in the sagebrush steppe of Eastern Oregon

Creator:

Richman, Lesley M.

Abstract:

This research examined the diets of angora goats on a sagebrush bunchgrass rangeland. Research objectives were to 1) determine the effects of a positive conditioning method on both mature and immature angora goats; and 2) to quantify plant selection and provide preliminary information as to the potential for using goats...

Resource Type:

Masters Thesis

Full Text:

the sagebrush steppe of Eastern Oregon AN ABSTRACT OF THE THESIS OF Lesley M. Richman for the
An evaluation of biological control of Linaria dalmatica with Mecinus janthinus in Oregon

Creator:

Park, Alexander

Abstract:

Dalmatian toadflax (Linaria dalmatica) has become a prolific invasive plant of rangelands in Oregon since its arrival in the early 20th century. In 2001, the Oregon Department of Agriculture initiated a release program promoting the distribution of the stem-boring weevil, Mecinus janthinus as classical biological control agent to reduce densities...

Resource Type:

Masters Thesis

Full Text:

from feeding by adult M. janthinus, and larval boring. Photo Credit: Amber Richman, USDA-APHIS