Browse biomass removal and nutritional condition of moose Alces alces
Abstract We present methodology for assessing browse removal to help evaluate resource limitation among moose Alces alces populations in large, potentially remote areas of boreal forest. During 2000‐2007, we compared proportional removal (ratio of browse consumption to browse production) in eight ar...
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crwiley:10.2981/10-010 2024-04-28T07:53:49+00:00 Browse biomass removal and nutritional condition of moose Alces alces Seaton, C. Tom Paragi, Thomas F. Boertje, Rodney D. Kielland, Knut DuBois, Stephen Fleener, Craig L. 2011 http://dx.doi.org/10.2981/10-010 https://onlinelibrary.wiley.com/doi/pdf/10.2981/10-010 https://onlinelibrary.wiley.com/doi/full-xml/10.2981/10-010 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Wildlife Biology volume 17, issue 1, page 55-66 ISSN 1903-220X 1903-220X Management, Monitoring, Policy and Law Nature and Landscape Conservation Ecology, Evolution, Behavior and Systematics journal-article 2011 crwiley https://doi.org/10.2981/10-010 2024-04-08T06:54:16Z Abstract We present methodology for assessing browse removal to help evaluate resource limitation among moose Alces alces populations in large, potentially remote areas of boreal forest. During 2000‐2007, we compared proportional removal (ratio of browse consumption to browse production) in eight areas of Interior Alaska, USA, with multi‐year twinning rates of the respective moose populations. Several prior studies concluded that twinning rate provided an index of the nutritional condition of moose. We theorized that a plant‐based sampling of proportional use of browse by moose in late winter would inversely correlate with the nutritional condition of moose. We sampled willow Salix spp., quaking aspen Populus tremuloides, balsam poplar P. balsamifera and Alaska paper birch Betula neoalaskana, i.e. plants with current annual growth (CAG) between 0.5 and 3.0 m above ground. We estimated the biomass of CAG and biomass removed by moose based on bite diameters and diameter‐mass regressions specific to each browse species. Mean browse removal by moose varied among study areas from 9 to 43% of CAG. Moose twinning rate (range: 7‐64%) was inversely correlated with proportional browse removal by moose (Spearman's rho = −0.863, P < 0.005). Proportional browse removal appeared useful in linking foraging ecology and population dynamics of moose in Alaska, and the technique may be used to quantify resource limitation in moose populations inhabiting boreal forest in a broader geographic region. Article in Journal/Newspaper Alces alces Alaska Wiley Online Library Wildlife Biology 17 1 55 66 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
topic |
Management, Monitoring, Policy and Law Nature and Landscape Conservation Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Management, Monitoring, Policy and Law Nature and Landscape Conservation Ecology, Evolution, Behavior and Systematics Seaton, C. Tom Paragi, Thomas F. Boertje, Rodney D. Kielland, Knut DuBois, Stephen Fleener, Craig L. Browse biomass removal and nutritional condition of moose Alces alces |
topic_facet |
Management, Monitoring, Policy and Law Nature and Landscape Conservation Ecology, Evolution, Behavior and Systematics |
description |
Abstract We present methodology for assessing browse removal to help evaluate resource limitation among moose Alces alces populations in large, potentially remote areas of boreal forest. During 2000‐2007, we compared proportional removal (ratio of browse consumption to browse production) in eight areas of Interior Alaska, USA, with multi‐year twinning rates of the respective moose populations. Several prior studies concluded that twinning rate provided an index of the nutritional condition of moose. We theorized that a plant‐based sampling of proportional use of browse by moose in late winter would inversely correlate with the nutritional condition of moose. We sampled willow Salix spp., quaking aspen Populus tremuloides, balsam poplar P. balsamifera and Alaska paper birch Betula neoalaskana, i.e. plants with current annual growth (CAG) between 0.5 and 3.0 m above ground. We estimated the biomass of CAG and biomass removed by moose based on bite diameters and diameter‐mass regressions specific to each browse species. Mean browse removal by moose varied among study areas from 9 to 43% of CAG. Moose twinning rate (range: 7‐64%) was inversely correlated with proportional browse removal by moose (Spearman's rho = −0.863, P < 0.005). Proportional browse removal appeared useful in linking foraging ecology and population dynamics of moose in Alaska, and the technique may be used to quantify resource limitation in moose populations inhabiting boreal forest in a broader geographic region. |
format |
Article in Journal/Newspaper |
author |
Seaton, C. Tom Paragi, Thomas F. Boertje, Rodney D. Kielland, Knut DuBois, Stephen Fleener, Craig L. |
author_facet |
Seaton, C. Tom Paragi, Thomas F. Boertje, Rodney D. Kielland, Knut DuBois, Stephen Fleener, Craig L. |
author_sort |
Seaton, C. Tom |
title |
Browse biomass removal and nutritional condition of moose Alces alces |
title_short |
Browse biomass removal and nutritional condition of moose Alces alces |
title_full |
Browse biomass removal and nutritional condition of moose Alces alces |
title_fullStr |
Browse biomass removal and nutritional condition of moose Alces alces |
title_full_unstemmed |
Browse biomass removal and nutritional condition of moose Alces alces |
title_sort |
browse biomass removal and nutritional condition of moose alces alces |
publisher |
Wiley |
publishDate |
2011 |
url |
http://dx.doi.org/10.2981/10-010 https://onlinelibrary.wiley.com/doi/pdf/10.2981/10-010 https://onlinelibrary.wiley.com/doi/full-xml/10.2981/10-010 |
genre |
Alces alces Alaska |
genre_facet |
Alces alces Alaska |
op_source |
Wildlife Biology volume 17, issue 1, page 55-66 ISSN 1903-220X 1903-220X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.2981/10-010 |
container_title |
Wildlife Biology |
container_volume |
17 |
container_issue |
1 |
container_start_page |
55 |
op_container_end_page |
66 |
_version_ |
1797573493085175808 |