Forest fire's influence on yellow hedysarum habitat and its use by grizzly bears in Banff National Park, Alberta
Hedysarum (Hedysarum spp.) roots are a primary food of grizzly bears (Ursus arctos) in the Front Ranges of the Canadian Rocky Mountains. I studied the effects of recent forest fire on yellow hedysarum (H. sulphurescens) habitat by comparing root density, mass, fibre content, ease of digging, and use...
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1999
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Online Access: | http://dx.doi.org/10.1139/z99-123 http://www.nrcresearchpress.com/doi/pdf/10.1139/z99-123 |
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crcansciencepubl:10.1139/z99-123 2024-03-03T08:49:18+00:00 Forest fire's influence on yellow hedysarum habitat and its use by grizzly bears in Banff National Park, Alberta Hamer, David 1999 http://dx.doi.org/10.1139/z99-123 http://www.nrcresearchpress.com/doi/pdf/10.1139/z99-123 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 77, issue 10, page 1513-1520 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1999 crcansciencepubl https://doi.org/10.1139/z99-123 2024-02-07T10:53:41Z Hedysarum (Hedysarum spp.) roots are a primary food of grizzly bears (Ursus arctos) in the Front Ranges of the Canadian Rocky Mountains. I studied the effects of recent forest fire on yellow hedysarum (H. sulphurescens) habitat by comparing root density, mass, fibre content, ease of digging, and use by grizzly bears in and adjacent to two prescribed burns that were conducted in Banff National Park, Alberta, in 1986 (Cascade Valley) and 1990 (Panther Valley). Digging was 12-14% easier in burned than in forested habitat. In the Cascade burn, yellow hedysarum roots were significantly more abundant and heavier than in the adjacent forest. This burn was intensively dug by grizzly bears between 1995 and 1997, but no diggings were found in the adjacent forest. In the Panther burn, no significant differences in root quality or mass were found. Bears dug few roots in the burn and did not dig in the adjacent forest. Their use of these two burns demonstrates prescribed fire's potential to create important yellow hedysarum digging habitat for grizzly bears in Banff National Park. Article in Journal/Newspaper Ursus arctos Canadian Science Publishing Canadian Journal of Zoology 77 10 1513 1520 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Hamer, David Forest fire's influence on yellow hedysarum habitat and its use by grizzly bears in Banff National Park, Alberta |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Hedysarum (Hedysarum spp.) roots are a primary food of grizzly bears (Ursus arctos) in the Front Ranges of the Canadian Rocky Mountains. I studied the effects of recent forest fire on yellow hedysarum (H. sulphurescens) habitat by comparing root density, mass, fibre content, ease of digging, and use by grizzly bears in and adjacent to two prescribed burns that were conducted in Banff National Park, Alberta, in 1986 (Cascade Valley) and 1990 (Panther Valley). Digging was 12-14% easier in burned than in forested habitat. In the Cascade burn, yellow hedysarum roots were significantly more abundant and heavier than in the adjacent forest. This burn was intensively dug by grizzly bears between 1995 and 1997, but no diggings were found in the adjacent forest. In the Panther burn, no significant differences in root quality or mass were found. Bears dug few roots in the burn and did not dig in the adjacent forest. Their use of these two burns demonstrates prescribed fire's potential to create important yellow hedysarum digging habitat for grizzly bears in Banff National Park. |
format |
Article in Journal/Newspaper |
author |
Hamer, David |
author_facet |
Hamer, David |
author_sort |
Hamer, David |
title |
Forest fire's influence on yellow hedysarum habitat and its use by grizzly bears in Banff National Park, Alberta |
title_short |
Forest fire's influence on yellow hedysarum habitat and its use by grizzly bears in Banff National Park, Alberta |
title_full |
Forest fire's influence on yellow hedysarum habitat and its use by grizzly bears in Banff National Park, Alberta |
title_fullStr |
Forest fire's influence on yellow hedysarum habitat and its use by grizzly bears in Banff National Park, Alberta |
title_full_unstemmed |
Forest fire's influence on yellow hedysarum habitat and its use by grizzly bears in Banff National Park, Alberta |
title_sort |
forest fire's influence on yellow hedysarum habitat and its use by grizzly bears in banff national park, alberta |
publisher |
Canadian Science Publishing |
publishDate |
1999 |
url |
http://dx.doi.org/10.1139/z99-123 http://www.nrcresearchpress.com/doi/pdf/10.1139/z99-123 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
Canadian Journal of Zoology volume 77, issue 10, page 1513-1520 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z99-123 |
container_title |
Canadian Journal of Zoology |
container_volume |
77 |
container_issue |
10 |
container_start_page |
1513 |
op_container_end_page |
1520 |
_version_ |
1792506489674399744 |