Extent of Stem Dieback in Trembling Aspen (Populus tremuloides) as an Indicator of Time-Since Simulated Browsing
Simulated browsing treatments were imposed on an important browse species of the North American moose (Alces alces L.) to see if the development and extent of subsequent stem dieback in trembling aspen (Populus tremuloides Michx.) could be used to determine the time of browsing during the growing se...
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2007
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ftunivarizonaojs:oai:journals.uair.arizona.edu:article/19794 2023-05-15T13:13:27+02:00 Extent of Stem Dieback in Trembling Aspen (Populus tremuloides) as an Indicator of Time-Since Simulated Browsing Carson, Allan W. 2007-09-01 application/pdf https://journals.uair.arizona.edu/index.php/jrm/article/view/19794 eng eng Rangeland Ecology & Management / Journal of Range Management Archives https://journals.uair.arizona.edu/index.php/jrm/article/view/19794/19421 https://journals.uair.arizona.edu/index.php/jrm/article/view/19794 Copyright (c) 2017 Rangeland Ecology & Management / Journal of Range Management Archives Rangeland Ecology & Management / Journal of Range Management Archives; Vol 60, No 5 (2007); 543-547 1550-7424 0022-409X info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2007 ftunivarizonaojs 2020-11-14T17:53:00Z Simulated browsing treatments were imposed on an important browse species of the North American moose (Alces alces L.) to see if the development and extent of subsequent stem dieback in trembling aspen (Populus tremuloides Michx.) could be used to determine the time of browsing during the growing season. Two hundred naturally growing aspen saplings of similar size and form were randomly selected in a 20-ha area near the endowment lands of the University of Northern British Columbia, Prince George, British Columbia, Canada. Plants were randomly assigned to treatment categories so that the apical meristems of 50 plants each were assigned to a control or were clipped on one of the following dates 6 weeks apart: 1 June, 16 July, and 30 August 2005. The leader of each aspen was clipped and dieback was left to progress until the onset of winter dormancy. Our results showed that the earlier the simulated browsing occurs in the growing season, the greater the length of stem dieback, up to the maximum of the subapical axillary node below the point of clipping. The average rate at which dieback progressed varied between treatments and decreased throughout the growing season. Our results suggest that the ratio of the actual length of stem dieback to the overall length of stem between the clip point and the subapical axillary node serves as a good indicator for estimating the time at which aspen meristems have been browsed during the growing season. https://doi.org/10.2458/azu_jrm_v60i5_carson Article in Journal/Newspaper Alces alces Journals at the University of Arizona British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada |
institution |
Open Polar |
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Journals at the University of Arizona |
op_collection_id |
ftunivarizonaojs |
language |
English |
description |
Simulated browsing treatments were imposed on an important browse species of the North American moose (Alces alces L.) to see if the development and extent of subsequent stem dieback in trembling aspen (Populus tremuloides Michx.) could be used to determine the time of browsing during the growing season. Two hundred naturally growing aspen saplings of similar size and form were randomly selected in a 20-ha area near the endowment lands of the University of Northern British Columbia, Prince George, British Columbia, Canada. Plants were randomly assigned to treatment categories so that the apical meristems of 50 plants each were assigned to a control or were clipped on one of the following dates 6 weeks apart: 1 June, 16 July, and 30 August 2005. The leader of each aspen was clipped and dieback was left to progress until the onset of winter dormancy. Our results showed that the earlier the simulated browsing occurs in the growing season, the greater the length of stem dieback, up to the maximum of the subapical axillary node below the point of clipping. The average rate at which dieback progressed varied between treatments and decreased throughout the growing season. Our results suggest that the ratio of the actual length of stem dieback to the overall length of stem between the clip point and the subapical axillary node serves as a good indicator for estimating the time at which aspen meristems have been browsed during the growing season. https://doi.org/10.2458/azu_jrm_v60i5_carson |
format |
Article in Journal/Newspaper |
author |
Carson, Allan W. |
spellingShingle |
Carson, Allan W. Extent of Stem Dieback in Trembling Aspen (Populus tremuloides) as an Indicator of Time-Since Simulated Browsing |
author_facet |
Carson, Allan W. |
author_sort |
Carson, Allan W. |
title |
Extent of Stem Dieback in Trembling Aspen (Populus tremuloides) as an Indicator of Time-Since Simulated Browsing |
title_short |
Extent of Stem Dieback in Trembling Aspen (Populus tremuloides) as an Indicator of Time-Since Simulated Browsing |
title_full |
Extent of Stem Dieback in Trembling Aspen (Populus tremuloides) as an Indicator of Time-Since Simulated Browsing |
title_fullStr |
Extent of Stem Dieback in Trembling Aspen (Populus tremuloides) as an Indicator of Time-Since Simulated Browsing |
title_full_unstemmed |
Extent of Stem Dieback in Trembling Aspen (Populus tremuloides) as an Indicator of Time-Since Simulated Browsing |
title_sort |
extent of stem dieback in trembling aspen (populus tremuloides) as an indicator of time-since simulated browsing |
publisher |
Rangeland Ecology & Management / Journal of Range Management Archives |
publishDate |
2007 |
url |
https://journals.uair.arizona.edu/index.php/jrm/article/view/19794 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) |
geographic |
British Columbia Canada |
geographic_facet |
British Columbia Canada |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
Rangeland Ecology & Management / Journal of Range Management Archives; Vol 60, No 5 (2007); 543-547 1550-7424 0022-409X |
op_relation |
https://journals.uair.arizona.edu/index.php/jrm/article/view/19794/19421 https://journals.uair.arizona.edu/index.php/jrm/article/view/19794 |
op_rights |
Copyright (c) 2017 Rangeland Ecology & Management / Journal of Range Management Archives |
_version_ |
1766258428228927488 |