Whitebark pine and white pine blister rust in British Columbia, Canada
| Autor: | Stefan Zeglen |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Global and Planetary Change
animal structures Pioneer species Ecology biology fungi food and beverages Forestry biology.organism_classification complex mixtures Rust Pinus albicaulis Dendroctonus Agronomy visual_art Cronartium ribicola visual_art.visual_art_medium Bark Mountain pine beetle Woody plant |
| Zdroj: | Canadian Journal of Forest Research. 32:1265-1274 |
| ISSN: | 1208-6037 0045-5067 |
| DOI: | 10.1139/x02-049 |
| Popis: | A survey of the health of whitebark pine (Pinus albicaulis Engelm.) was conducted throughout its range in British Columbia, Canada. Over 3 years, 24 070 trees were examined for mortality, incidence of white pine blister rust (Cronartium ribicola J.C. Fisch.), or other damage. About 19% of whitebark pine (>1.3 m in height) were dead, and another 31% had active blister rust infections. Tests of relationships between the proportion of healthy, infected, or dead trees and elevation, latitude, and longitude produced mixed results. The ratio of healthy to infected whitebark pine varies considerably across the province, with a trend of increasing incidence from west to east. Losses to mountain pine beetle (Dendroctonus ponderosae Hopkins) proved minor, but bark stripping by mammals was common. Whitebark pine seedlings ( |
| Databáze: | OpenAIRE |
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