Document Type

Project

Publication Date

Spring 2016

Keywords

Western spruce budworm outbreaks, Drought conditions, Choristoneura occidentalis

Abstract

Western spruce budworm outbreaks occur yearly with devastating effects for forests across Oregon, Washington, and British Columbia. However, as of yet, the relationship between these outbreaks and summer climate is poorly understood. In this study, I compared western spruce budworm outbreak records from Oregon, Washington, and British Columbia with June-August temperature and precipitation records between 1975 and 1995. This research reveals interesting patterns in the correlation between drought conditions and western spruce budworm outbreaks. My results necessitate further study examining the potentially significant relationship between summer drought conditions and western spruce budworm outbreaks.

Department

Environmental Sciences

Subjects - Topical (LCSH)

Western spruce budworm--Northwest, Pacific; Douglas fir--Diseases and pests--Climatic factors--Northwest, Pacific; Forest health--Climatic factors--Northwest, Pacific

Geographic Coverage

Northwest, Pacific

Genre/Form

student projects; term papers

Type

Text

Rights

Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author’s written permission.

Language

English

Format

application/pdf

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