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Fire, red squirrels, whitebark pine, and Yellowstone grizzly bears

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Shannon Podruzny, Daniel P. Reinhart, and David J. Mattson, 1999, Fire, red squirrels, whitebark pine, and Yellowstone grizzly bears: Ursus, v. 11.

Summary

Whitebark pine (Pinus albicaulis) habitats are important to Yellowstone grizzly bears (Ursus arctos) as refugia and sources of food. Ecological relationships between whitebark pine, red squirrels (Tamiasciurus hudsonicus), and grizzly bear use of pine seeds on Mt. Washburn in Yellowstone National Park, Wyoming, were examined during 1984-86. Following large-scale fires in 1988, we repeated the study in 1995-97 to examine the effects of fire on availability of whitebark pine seed in red squirrel middens and on bear use of middens. Half of the total length of the original line transects burned. We found no red squirrel middens in burned areas. Post-fire linear-abundance (no./km) of active squirrel middens that were pooled from burned [...]

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Harvested on Thu Mar 31 04:37:44 MDT 2016 from MODS XML Service

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Type Scheme Key
local-index unknown 70169417
local-pk unknown 70169417
series unknown Ursus

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journalUrsus
parts
typevolume
value11
typePublication Place
valueNew York, NY
languageEnglish
citationTypeArticle

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