Winter Habitat Selection by American Marten ( Martes americana ) in Newfoundland: Why Old Growth?
Although the American marten (Martes americana) generally is recognized as an obligate late-seral species, the factors dictating this association are poorly understood. Martens were studied in Newfoundland, Yellowstone National Park, and in a captive setting. As expected, use of habitat types was no...
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ftutahsudc:oai:digitalcommons.usu.edu:etd-7596 2023-08-27T04:03:48+02:00 Winter Habitat Selection by American Marten ( Martes americana ) in Newfoundland: Why Old Growth? Drew, Gary S. 1995-05-01T07:00:00Z application/pdf https://digitalcommons.usu.edu/etd/6518 https://doi.org/10.26076/616d-9f96 https://digitalcommons.usu.edu/context/etd/article/7596/viewcontent/1995_Drew_Gary.pdf unknown DigitalCommons@USU https://digitalcommons.usu.edu/etd/6518 doi:10.26076/616d-9f96 https://digitalcommons.usu.edu/context/etd/article/7596/viewcontent/1995_Drew_Gary.pdf Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact digitalcommons@usu.edu. All Graduate Theses and Dissertations winter habitat selection american marten Newfoundland old growth Animal Sciences Ecology and Evolutionary Biology Environmental Sciences Plant Sciences text 1995 ftutahsudc https://doi.org/10.26076/616d-9f96 2023-08-10T17:36:34Z Although the American marten (Martes americana) generally is recognized as an obligate late-seral species, the factors dictating this association are poorly understood. Martens were studied in Newfoundland, Yellowstone National Park, and in a captive setting. As expected, use of habitat types was not proportional to availability P < 0.001). Defoliated and late-seral conifer stands were used more than expected, while all other types indicated expected or less than expected use. Habitat selection by martens was detectable at spatial scales greater than 80 m (P < 0.001). Newfoundland martens were radio-collared and monitored for diet activity during the winters of 1990 and 1991. A regression of the percent active fixes on temperature had a negative slope (b = -4.45, P = 0.084, n = 12), indicating that martens did not minimize their exposure to low temperatures. A log-linear model suggested that the presence or absence of light was the only factor associated with marten activity patterns (P < 0.001). Martens in Western Newfoundland and a population in Yellowstone National Park were tested for their response to predation risk using bait stations in various habitat types. Visitation rates of martens at bait-boxes were not different between study sites (P = 0 .190). However, martens visitation by habitat was different (P = 0.001). Martens use of bait-boxes was similar in old-growth and defoliated habitats, suggesting that foliar cover may not have a strong influence on the risk of predation for martens during winter. Martens did use bait-boxes in defoliated stands to a greater extent than those in open habitats (P < 0.001), suggesting that they perceived stem structure as decreasing predation risk. In captive experiments, martens selected areas with both overhead cover and woody stem structure (P = 0.012). I detected no difference between the use of areas with only overhead cover and those having only stem structure (P = 0.671). However, martens decreased foraging activity in response to a predatory cue (P ... Text American marten Martes americana Newfoundland Utah State University: DigitalCommons@USU |
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Utah State University: DigitalCommons@USU |
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unknown |
topic |
winter habitat selection american marten Newfoundland old growth Animal Sciences Ecology and Evolutionary Biology Environmental Sciences Plant Sciences |
spellingShingle |
winter habitat selection american marten Newfoundland old growth Animal Sciences Ecology and Evolutionary Biology Environmental Sciences Plant Sciences Drew, Gary S. Winter Habitat Selection by American Marten ( Martes americana ) in Newfoundland: Why Old Growth? |
topic_facet |
winter habitat selection american marten Newfoundland old growth Animal Sciences Ecology and Evolutionary Biology Environmental Sciences Plant Sciences |
description |
Although the American marten (Martes americana) generally is recognized as an obligate late-seral species, the factors dictating this association are poorly understood. Martens were studied in Newfoundland, Yellowstone National Park, and in a captive setting. As expected, use of habitat types was not proportional to availability P < 0.001). Defoliated and late-seral conifer stands were used more than expected, while all other types indicated expected or less than expected use. Habitat selection by martens was detectable at spatial scales greater than 80 m (P < 0.001). Newfoundland martens were radio-collared and monitored for diet activity during the winters of 1990 and 1991. A regression of the percent active fixes on temperature had a negative slope (b = -4.45, P = 0.084, n = 12), indicating that martens did not minimize their exposure to low temperatures. A log-linear model suggested that the presence or absence of light was the only factor associated with marten activity patterns (P < 0.001). Martens in Western Newfoundland and a population in Yellowstone National Park were tested for their response to predation risk using bait stations in various habitat types. Visitation rates of martens at bait-boxes were not different between study sites (P = 0 .190). However, martens visitation by habitat was different (P = 0.001). Martens use of bait-boxes was similar in old-growth and defoliated habitats, suggesting that foliar cover may not have a strong influence on the risk of predation for martens during winter. Martens did use bait-boxes in defoliated stands to a greater extent than those in open habitats (P < 0.001), suggesting that they perceived stem structure as decreasing predation risk. In captive experiments, martens selected areas with both overhead cover and woody stem structure (P = 0.012). I detected no difference between the use of areas with only overhead cover and those having only stem structure (P = 0.671). However, martens decreased foraging activity in response to a predatory cue (P ... |
format |
Text |
author |
Drew, Gary S. |
author_facet |
Drew, Gary S. |
author_sort |
Drew, Gary S. |
title |
Winter Habitat Selection by American Marten ( Martes americana ) in Newfoundland: Why Old Growth? |
title_short |
Winter Habitat Selection by American Marten ( Martes americana ) in Newfoundland: Why Old Growth? |
title_full |
Winter Habitat Selection by American Marten ( Martes americana ) in Newfoundland: Why Old Growth? |
title_fullStr |
Winter Habitat Selection by American Marten ( Martes americana ) in Newfoundland: Why Old Growth? |
title_full_unstemmed |
Winter Habitat Selection by American Marten ( Martes americana ) in Newfoundland: Why Old Growth? |
title_sort |
winter habitat selection by american marten ( martes americana ) in newfoundland: why old growth? |
publisher |
DigitalCommons@USU |
publishDate |
1995 |
url |
https://digitalcommons.usu.edu/etd/6518 https://doi.org/10.26076/616d-9f96 https://digitalcommons.usu.edu/context/etd/article/7596/viewcontent/1995_Drew_Gary.pdf |
genre |
American marten Martes americana Newfoundland |
genre_facet |
American marten Martes americana Newfoundland |
op_source |
All Graduate Theses and Dissertations |
op_relation |
https://digitalcommons.usu.edu/etd/6518 doi:10.26076/616d-9f96 https://digitalcommons.usu.edu/context/etd/article/7596/viewcontent/1995_Drew_Gary.pdf |
op_rights |
Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact digitalcommons@usu.edu. |
op_doi |
https://doi.org/10.26076/616d-9f96 |
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1775346881978695680 |