Grizzly bears and forestry I. Selection of clearcuts by grizzly bears in
We examined if clearcuts were selected as habitats by grizzly bears (Ursus arctos L.) in west-central Alberta during three seasons: hypophagia, early hyperphagia, and late hyperphagia. Our objectives were to describe seasonal habitat selection of clearcuts using resource selection functions at two s...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.562.339 2023-05-15T18:42:10+02:00 Grizzly bears and forestry I. Selection of clearcuts by grizzly bears in Scott E. Nielsena Mark S. Boycea Gordon B. Stenhouseb The Pennsylvania State University CiteSeerX Archives 2004 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.562.339 http://www.cfr.washington.edu/classes.esrm.450/Nielsen_etal_2004.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.562.339 http://www.cfr.washington.edu/classes.esrm.450/Nielsen_etal_2004.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.cfr.washington.edu/classes.esrm.450/Nielsen_etal_2004.pdf text 2004 ftciteseerx 2016-01-08T12:06:03Z We examined if clearcuts were selected as habitats by grizzly bears (Ursus arctos L.) in west-central Alberta during three seasons: hypophagia, early hyperphagia, and late hyperphagia. Our objectives were to describe seasonal habitat selection of clearcuts using resource selection functions at two scales. At the first scale, we assessed patch or third-order selection by comparing use (radiotelemetry) with study area-wide random locations and a dummy variable identifying whether locations occurred within or outside of clear-cut boundaries. At the second scale, we assessed within-patch or fourth-order selection by comparing locations (use and random) found within clearcuts and environmental covariates of terrain, silviculture, and landscape metrics. Finally, we examined diurnal versus crepuscular/nocturnal use of clearcuts by comparing the two with an expected 50:50 ratio. At the third-order scale, grizzly bears used clearcuts with respect to their availability for hypophagia and late hyperphagia, while selecting clearcuts more than expected during early hyperphagia. Fourth-order habitat selection revealed that landscape metrics, silviculture, and terrain were important predictors of grizzly bear use during hypophagia and late hyperphagia, while terrain appeared to be the most important predictor during early hyperphagia. Overall, grizzly bears avoided clear-cut interiors and preferred clearcuts with higher perimeter-to-edge ratios. Clearcuts were significantly more likely to be used during crepuscular/nocturnal periods. Intermediate-aged (30 years old) clearcuts were selected during hypophagia, whereas recent and old clearcuts were selected during late hyperphagia. Bears tended to avoid clearcuts with Donaren mound preparation, while Text Ursus arctos Unknown |
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English |
description |
We examined if clearcuts were selected as habitats by grizzly bears (Ursus arctos L.) in west-central Alberta during three seasons: hypophagia, early hyperphagia, and late hyperphagia. Our objectives were to describe seasonal habitat selection of clearcuts using resource selection functions at two scales. At the first scale, we assessed patch or third-order selection by comparing use (radiotelemetry) with study area-wide random locations and a dummy variable identifying whether locations occurred within or outside of clear-cut boundaries. At the second scale, we assessed within-patch or fourth-order selection by comparing locations (use and random) found within clearcuts and environmental covariates of terrain, silviculture, and landscape metrics. Finally, we examined diurnal versus crepuscular/nocturnal use of clearcuts by comparing the two with an expected 50:50 ratio. At the third-order scale, grizzly bears used clearcuts with respect to their availability for hypophagia and late hyperphagia, while selecting clearcuts more than expected during early hyperphagia. Fourth-order habitat selection revealed that landscape metrics, silviculture, and terrain were important predictors of grizzly bear use during hypophagia and late hyperphagia, while terrain appeared to be the most important predictor during early hyperphagia. Overall, grizzly bears avoided clear-cut interiors and preferred clearcuts with higher perimeter-to-edge ratios. Clearcuts were significantly more likely to be used during crepuscular/nocturnal periods. Intermediate-aged (30 years old) clearcuts were selected during hypophagia, whereas recent and old clearcuts were selected during late hyperphagia. Bears tended to avoid clearcuts with Donaren mound preparation, while |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Scott E. Nielsena Mark S. Boycea Gordon B. Stenhouseb |
spellingShingle |
Scott E. Nielsena Mark S. Boycea Gordon B. Stenhouseb Grizzly bears and forestry I. Selection of clearcuts by grizzly bears in |
author_facet |
Scott E. Nielsena Mark S. Boycea Gordon B. Stenhouseb |
author_sort |
Scott E. Nielsena |
title |
Grizzly bears and forestry I. Selection of clearcuts by grizzly bears in |
title_short |
Grizzly bears and forestry I. Selection of clearcuts by grizzly bears in |
title_full |
Grizzly bears and forestry I. Selection of clearcuts by grizzly bears in |
title_fullStr |
Grizzly bears and forestry I. Selection of clearcuts by grizzly bears in |
title_full_unstemmed |
Grizzly bears and forestry I. Selection of clearcuts by grizzly bears in |
title_sort |
grizzly bears and forestry i. selection of clearcuts by grizzly bears in |
publishDate |
2004 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.562.339 http://www.cfr.washington.edu/classes.esrm.450/Nielsen_etal_2004.pdf |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
http://www.cfr.washington.edu/classes.esrm.450/Nielsen_etal_2004.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.562.339 http://www.cfr.washington.edu/classes.esrm.450/Nielsen_etal_2004.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766231791543255040 |