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Filtering by: Subject Logging -- Economic aspects -- Northwest, Pacific Academic Affiliation Forest Ecosystems and Society

A Multi-Spatial Scale Economic Analysis of the Impacts of Bear Damage to Douglas-fir on Private Timberlands in the Pacific Northwest

Creator:

Kline, Kristina N.

Abstract:

Black bears (Ursus americanus) in western Oregon and Washington peel bark from conifers in early spring to forage on the sugar-rich phloem and cambial tissues. This provides important energy at a time when similarly attractive forage is scarce. Bears often damage Douglas-fir (Pseudotsuga menziesii) trees in stands that are intensively...

Resource Type:

Masters Thesis

Full Text:

Impacts of Bear Damage to Douglas-fir on Private Timberlands in the Pacific Northwest Abstract
Exploration of statistical methods for synthesizing the effects of variable-retention harvesting on multiple taxa

Creator:

Lam, Tzeng Yih

Abstract:

Variable-retention harvesting was proposed to reduce loss of biodiversity and ecosystem processes associated with late-seral Douglas-fir (Pseudotsuga menziesii) forests in the Pacific Northwest. The Demonstration of Ecosystem Management Options experiment was established to test this hypothesis. Analysis presents various challenges to drawing statistical inferences about treatment effects. This dissertation explored...

Resource Type:

Dissertation

Full Text:

in the Pacific Northwest. The Demonstration of Ecosystem Management Options experiment was