Marten Subnivean Access Point Use: Response to Subnivean Prey Levels
Because marten (Martes americana) require subnivean access for cover, prey access, and homeothermic reasons, we developed a predictive model to explain their differential use of subnivean access holes in Yellowstone National Park. We included prey biomass and percent ground cover of coarse woody deb...
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ftutahsudc:oai:digitalcommons.usu.edu:wild_facpub-2305 2023-05-15T17:10:24+02:00 Marten Subnivean Access Point Use: Response to Subnivean Prey Levels Sherburne, S. S. Bissonette, John A. 1994-01-01T08:00:00Z https://digitalcommons.usu.edu/wild_facpub/1306 unknown Hosted by Utah State University Libraries https://digitalcommons.usu.edu/wild_facpub/1306 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 the Institutional Repository Librarian at digitalcommons@usu.edu. PDM Wildland Resources Faculty Publications marten subnivean prey text 1994 ftutahsudc 2022-09-01T17:17:40Z Because marten (Martes americana) require subnivean access for cover, prey access, and homeothermic reasons, we developed a predictive model to explain their differential use of subnivean access holes in Yellowstone National Park. We included prey biomass and percent ground cover of coarse woody debris (CWD) as explanatory variables in a logistic regression model because of their biological importance to marten in winter. Taken singly, relative prey biomass yielded the best univariate predictive model (P = 0.001). However, we included CWD in a multivariate model because of its biological significance. Coarse woody debris provides structure that intercepts snowfall, creating subnivean tunnels, interstitial spaces, and access holes, and was found at used and unused access points. Mean prey biomass was 205.4 g/400 m2 (SE = 20.26) and 108.2 g/400 m2 (SE = 10.73) at used and unused points (P < 0.001), respectively, while mean percent ground cover of CWD was 24.7 (SE = 2.30) and 18.5% (SE = 1.18) at used and unused access points (P = 0.017), respectively. As CWD increased by 5%, the probability of use by marten increased 1.12 times, and for every 50 g increase in relative prey biomass, marten were 1.37 times more likely to use that access point. Prey biomass varied (P < 0.001) among subnivean access points, and marten chose between different access points primarily on the basis of prey abundance levels. Older growth forests with accumulated CWD will enable marten to forage effectively in winter. Text Martes americana Utah State University: DigitalCommons@USU Access Point ENVELOPE(-63.783,-63.783,-64.833,-64.833) |
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Utah State University: DigitalCommons@USU |
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language |
unknown |
topic |
marten subnivean prey |
spellingShingle |
marten subnivean prey Sherburne, S. S. Bissonette, John A. Marten Subnivean Access Point Use: Response to Subnivean Prey Levels |
topic_facet |
marten subnivean prey |
description |
Because marten (Martes americana) require subnivean access for cover, prey access, and homeothermic reasons, we developed a predictive model to explain their differential use of subnivean access holes in Yellowstone National Park. We included prey biomass and percent ground cover of coarse woody debris (CWD) as explanatory variables in a logistic regression model because of their biological importance to marten in winter. Taken singly, relative prey biomass yielded the best univariate predictive model (P = 0.001). However, we included CWD in a multivariate model because of its biological significance. Coarse woody debris provides structure that intercepts snowfall, creating subnivean tunnels, interstitial spaces, and access holes, and was found at used and unused access points. Mean prey biomass was 205.4 g/400 m2 (SE = 20.26) and 108.2 g/400 m2 (SE = 10.73) at used and unused points (P < 0.001), respectively, while mean percent ground cover of CWD was 24.7 (SE = 2.30) and 18.5% (SE = 1.18) at used and unused access points (P = 0.017), respectively. As CWD increased by 5%, the probability of use by marten increased 1.12 times, and for every 50 g increase in relative prey biomass, marten were 1.37 times more likely to use that access point. Prey biomass varied (P < 0.001) among subnivean access points, and marten chose between different access points primarily on the basis of prey abundance levels. Older growth forests with accumulated CWD will enable marten to forage effectively in winter. |
format |
Text |
author |
Sherburne, S. S. Bissonette, John A. |
author_facet |
Sherburne, S. S. Bissonette, John A. |
author_sort |
Sherburne, S. S. |
title |
Marten Subnivean Access Point Use: Response to Subnivean Prey Levels |
title_short |
Marten Subnivean Access Point Use: Response to Subnivean Prey Levels |
title_full |
Marten Subnivean Access Point Use: Response to Subnivean Prey Levels |
title_fullStr |
Marten Subnivean Access Point Use: Response to Subnivean Prey Levels |
title_full_unstemmed |
Marten Subnivean Access Point Use: Response to Subnivean Prey Levels |
title_sort |
marten subnivean access point use: response to subnivean prey levels |
publisher |
Hosted by Utah State University Libraries |
publishDate |
1994 |
url |
https://digitalcommons.usu.edu/wild_facpub/1306 |
long_lat |
ENVELOPE(-63.783,-63.783,-64.833,-64.833) |
geographic |
Access Point |
geographic_facet |
Access Point |
genre |
Martes americana |
genre_facet |
Martes americana |
op_source |
Wildland Resources Faculty Publications |
op_relation |
https://digitalcommons.usu.edu/wild_facpub/1306 |
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 the Institutional Repository Librarian at digitalcommons@usu.edu. |
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PDM |
_version_ |
1766066996348190720 |