EFFECTS OF VISION® APPLICATION ON MOOSE WINTER BROWSING AND HARDWOOD VEGETATION
Two years after aerial spraying with Vision® (glyphosate) at 0.80, 1.06, and 1.60 kg acid equivalents (a.e.)/ha, we found live hardwood stem densities on 7 mixedwood clear-cuts reduced by 48, 65, and 61%, while those on controls had increased 19%. Winter browsing by moose (Alces alces) decreased bot...
Main Authors: | , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Lakehead University
1994
|
Subjects: | |
Online Access: | http://alcesjournal.org/index.php/alces/article/view/965 |
id |
ftjalces:oai:ojs.pkp.sfu.ca:article/965 |
---|---|
record_format |
openpolar |
spelling |
ftjalces:oai:ojs.pkp.sfu.ca:article/965 2023-05-15T13:13:27+02:00 EFFECTS OF VISION® APPLICATION ON MOOSE WINTER BROWSING AND HARDWOOD VEGETATION Kelly, Colin P. Cumming, Harold G. 1994-01-01 application/pdf http://alcesjournal.org/index.php/alces/article/view/965 eng eng Lakehead University http://alcesjournal.org/index.php/alces/article/view/965/1039 http://alcesjournal.org/index.php/alces/article/view/965 Alces: A Journal Devoted to the Biology and Management of Moose; Vol. 30 (1994): Alces Vol. 30 (1994); 173-188 2293-6629 0835-5851 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 1994 ftjalces 2022-02-12T19:35:55Z Two years after aerial spraying with Vision® (glyphosate) at 0.80, 1.06, and 1.60 kg acid equivalents (a.e.)/ha, we found live hardwood stem densities on 7 mixedwood clear-cuts reduced by 48, 65, and 61%, while those on controls had increased 19%. Winter browsing by moose (Alces alces) decreased both 6 and 18 months after spraying on all treatment units, including controls, but was consistently lower on sprayed areas. The two highest application rates resulted in the lowest browsing levels. Conversely, winter track data showed no differences in use among sprayed areas and controls, nor any differences among treatments. This finding suggested that moose still travelled through sprayed areas, but did not stop as frequently or as long to browse, or else that they browsed more early in winter before we began tracking. Since 0.80 kg a.e./ha controlled hardwood and herbaceous competition as well and 1.06 and 1.60 kg a.e./ha, and also showed signs of increased moose use two years post-spray, (while the two higher rates did not), we recommend that where spray programs are concentrated in one management unit, application at 0.80 kg a.e./ha would be best for moose. However, the low browsing intensities found in this study suggested that moose densities were low enough that food would not be a limiting factor. Thus, the small percentage of forests currently treated with Vision® in Ontario would not be expected to affect moose populations. Article in Journal/Newspaper Alces alces Alces (A Journal Devoted to the Biology and Management of Moose) |
institution |
Open Polar |
collection |
Alces (A Journal Devoted to the Biology and Management of Moose) |
op_collection_id |
ftjalces |
language |
English |
description |
Two years after aerial spraying with Vision® (glyphosate) at 0.80, 1.06, and 1.60 kg acid equivalents (a.e.)/ha, we found live hardwood stem densities on 7 mixedwood clear-cuts reduced by 48, 65, and 61%, while those on controls had increased 19%. Winter browsing by moose (Alces alces) decreased both 6 and 18 months after spraying on all treatment units, including controls, but was consistently lower on sprayed areas. The two highest application rates resulted in the lowest browsing levels. Conversely, winter track data showed no differences in use among sprayed areas and controls, nor any differences among treatments. This finding suggested that moose still travelled through sprayed areas, but did not stop as frequently or as long to browse, or else that they browsed more early in winter before we began tracking. Since 0.80 kg a.e./ha controlled hardwood and herbaceous competition as well and 1.06 and 1.60 kg a.e./ha, and also showed signs of increased moose use two years post-spray, (while the two higher rates did not), we recommend that where spray programs are concentrated in one management unit, application at 0.80 kg a.e./ha would be best for moose. However, the low browsing intensities found in this study suggested that moose densities were low enough that food would not be a limiting factor. Thus, the small percentage of forests currently treated with Vision® in Ontario would not be expected to affect moose populations. |
format |
Article in Journal/Newspaper |
author |
Kelly, Colin P. Cumming, Harold G. |
spellingShingle |
Kelly, Colin P. Cumming, Harold G. EFFECTS OF VISION® APPLICATION ON MOOSE WINTER BROWSING AND HARDWOOD VEGETATION |
author_facet |
Kelly, Colin P. Cumming, Harold G. |
author_sort |
Kelly, Colin P. |
title |
EFFECTS OF VISION® APPLICATION ON MOOSE WINTER BROWSING AND HARDWOOD VEGETATION |
title_short |
EFFECTS OF VISION® APPLICATION ON MOOSE WINTER BROWSING AND HARDWOOD VEGETATION |
title_full |
EFFECTS OF VISION® APPLICATION ON MOOSE WINTER BROWSING AND HARDWOOD VEGETATION |
title_fullStr |
EFFECTS OF VISION® APPLICATION ON MOOSE WINTER BROWSING AND HARDWOOD VEGETATION |
title_full_unstemmed |
EFFECTS OF VISION® APPLICATION ON MOOSE WINTER BROWSING AND HARDWOOD VEGETATION |
title_sort |
effects of vision® application on moose winter browsing and hardwood vegetation |
publisher |
Lakehead University |
publishDate |
1994 |
url |
http://alcesjournal.org/index.php/alces/article/view/965 |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
Alces: A Journal Devoted to the Biology and Management of Moose; Vol. 30 (1994): Alces Vol. 30 (1994); 173-188 2293-6629 0835-5851 |
op_relation |
http://alcesjournal.org/index.php/alces/article/view/965/1039 http://alcesjournal.org/index.php/alces/article/view/965 |
_version_ |
1766258470375391232 |