| Fishers, farms, and forests in eastern North America. | |
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MedLine Citation:
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PMID: 18368443 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The fisher (Martes pennanti) has recently recovered from historic extirpations across much of its geographic range. There are at least five explanations for the recovery of the fisher, including changes in the amount of habitat, the suitability of habitat, trapping pressure, societal attitudes toward predators, and climate. We evaluated a recovering fisher population in Ontario to test two conditions we viewed as necessary to support the hypothesis that fisher populations have increased due to an increase in the amount of forested land. First, we tested whether the amount of forested land has increased. Second, we tested whether contemporary fisher abundance (and therefore habitat quality) was related to the amount of forest. Topographic maps showed that the proportion of forested land in the study area had increased by 1.9% per decade since 1934 and 3.3% per decade since 1959, likely as a result of land conversion from agricultural uses. Overall the proportion of the study area that was forested increased from 29% to 40% during 1934 to 1995. Census data from the region indicated that there had been a decline in the amount of land area being farmed during the last 50 years. Recent livetrapping data showed that fisher abundance was positively related to the proportion of landscapes that were forested. Based on our results, we could not reject the hypothesis that an increase in the amount of forested land has contributed to the recovery of fisher populations. |
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Authors:
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Pamela A Lancaster; Jeff Bowman; Bruce A Pond |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-03-27 |
Journal Detail:
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Title: Environmental management Volume: 42 ISSN: 0364-152X ISO Abbreviation: Environ Manage Publication Date: 2008 Jul |
Date Detail:
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Created Date: 2008-05-20 Completed Date: 2008-10-16 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7703893 Medline TA: Environ Manage Country: United States |
Other Details:
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Languages: eng Pagination: 93-101 Citation Subset: IM |
Affiliation:
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Wildlife Research & Development Section, Ontario Ministry of Natural Resources, Trent University DNA Building, 2140 East Bank Drive, Peterborough, ON, Canada, K9J 7B8. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Agriculture* Animals Ecosystem Mustelidae* North America Trees* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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