The goal of this study was to gather information on the autecology,
reproductive ecology, and population dynamics of Astragalus australis
var. olympicus as a baseline for conservation strategies and to help
explain its restricted range. Approximately four thousand
individuals occurred in four known population centers in the Olympic
Mountains, Olympic...
This dissertation focuses on the evolutionary forces of genetic drift and gene flow in frog populations. The balance of these two forces and the force of mutation largely determine the amount of neutral genetic variation within populations as well as the degree of genetic similarity among populations. The stochastic evolutionary...
Seasonal movements, home ranges, core areas and habitat use patterns of hunted, migratory Roosevelt elk (Cervus elaphus roosevelti) were investigated on the Olympic Peninsula, Washington. Radio telemetry was used to obtain more than 3,100 locations of 9 elk from May 1984 - March 1985, and November - December, 1985. Radio-collared...
A potential vegetation classification system is presented for the Olympic National Forest. It is
based on a sample of 1046 Reconnaissance and 408 Intensive plots. The hierarchical classification
includes sixvegetation series and 64 plant associations. Diagnostickeys are presented to aid in the identification of series and associations. Descriptions are presented...
The relationships between black-tailed deer (Odocoileus hemionus columbianus) and Roosevelt elk (Cervus elaphus roosevelti) herbivory and understory vegetation in unmanaged forests in Olympic National Park were studied from 1985 - 1989. From 1985 to 1986 I studied the impact of cervid exclusion on shrub, fern, and forb forage quality, tannin...
Shovel logging is a relatively new ground-based method of yarding tinther. It involves moving logs from stump to landing by successive swinging with a hydraulic excavator modified into a log loader by replacing the shovel bucket with a grapple. Loaders used in shovel yarding can weigh in excess of 100,000...
An integrative method for monitoring glacier geometry change and mass balance is presented and applied to the Pacific Northwest, USA. Acting as a baseline for interpretation of future changes in glacier size and shape, we first derive a new inventory of regional glacier cover using remotely sensed data. To investigate...