Seasonal occurrence, body composition, and migration potential of army cutworm moths in northwest Montana
Grizzly bears (Ursus arctos horribilis) consume adult army cutworm moths (Euxoa auxiliaris) from late June through mid-September on alpine talus slopes in Glacier National Park (GNP), Montana. As part of a study carried out to better understand the ecological interactions between grizzly bears and a...
Published in: | Canadian Journal of Zoology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1998
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/z98-001 http://www.nrcresearchpress.com/doi/pdf/10.1139/z98-001 |
id |
crcansciencepubl:10.1139/z98-001 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/z98-001 2023-12-17T10:51:19+01:00 Seasonal occurrence, body composition, and migration potential of army cutworm moths in northwest Montana White, Jr., Don Kendall, Katherine C Picton, Harold D 1998 http://dx.doi.org/10.1139/z98-001 http://www.nrcresearchpress.com/doi/pdf/10.1139/z98-001 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 76, issue 5, page 835-842 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1998 crcansciencepubl https://doi.org/10.1139/z98-001 2023-11-19T13:38:35Z Grizzly bears (Ursus arctos horribilis) consume adult army cutworm moths (Euxoa auxiliaris) from late June through mid-September on alpine talus slopes in Glacier National Park (GNP), Montana. As part of a study carried out to better understand the ecological interactions between grizzly bears and army cutworm moths in GNP, we studied temporal abundance patterns, body mass and composition, and migration potential of moths collected from alpine moth aggregation sites throughout the summer of 1994 and 1995. Army cutworm moths arrived in the alpine zone of GNP in late June or early July and departed by late August or early September. While moths were in the alpine zone, their body mass and moisture, lipid, and gross energy contents markedly increased and crude protein decreased. The absence of moths from the alpine zone coincided with the presence of moths on the Great Plains. Using published estimates of the cost of transport in flying animals, we calculated that an army cutworm moth flying in late summer through still air could fly 140 km using body lipid reserves alone. Article in Journal/Newspaper Ursus arctos Canadian Science Publishing (via Crossref) Canadian Journal of Zoology 76 5 835 842 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics White, Jr., Don Kendall, Katherine C Picton, Harold D Seasonal occurrence, body composition, and migration potential of army cutworm moths in northwest Montana |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Grizzly bears (Ursus arctos horribilis) consume adult army cutworm moths (Euxoa auxiliaris) from late June through mid-September on alpine talus slopes in Glacier National Park (GNP), Montana. As part of a study carried out to better understand the ecological interactions between grizzly bears and army cutworm moths in GNP, we studied temporal abundance patterns, body mass and composition, and migration potential of moths collected from alpine moth aggregation sites throughout the summer of 1994 and 1995. Army cutworm moths arrived in the alpine zone of GNP in late June or early July and departed by late August or early September. While moths were in the alpine zone, their body mass and moisture, lipid, and gross energy contents markedly increased and crude protein decreased. The absence of moths from the alpine zone coincided with the presence of moths on the Great Plains. Using published estimates of the cost of transport in flying animals, we calculated that an army cutworm moth flying in late summer through still air could fly 140 km using body lipid reserves alone. |
format |
Article in Journal/Newspaper |
author |
White, Jr., Don Kendall, Katherine C Picton, Harold D |
author_facet |
White, Jr., Don Kendall, Katherine C Picton, Harold D |
author_sort |
White, Jr., Don |
title |
Seasonal occurrence, body composition, and migration potential of army cutworm moths in northwest Montana |
title_short |
Seasonal occurrence, body composition, and migration potential of army cutworm moths in northwest Montana |
title_full |
Seasonal occurrence, body composition, and migration potential of army cutworm moths in northwest Montana |
title_fullStr |
Seasonal occurrence, body composition, and migration potential of army cutworm moths in northwest Montana |
title_full_unstemmed |
Seasonal occurrence, body composition, and migration potential of army cutworm moths in northwest Montana |
title_sort |
seasonal occurrence, body composition, and migration potential of army cutworm moths in northwest montana |
publisher |
Canadian Science Publishing |
publishDate |
1998 |
url |
http://dx.doi.org/10.1139/z98-001 http://www.nrcresearchpress.com/doi/pdf/10.1139/z98-001 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
Canadian Journal of Zoology volume 76, issue 5, page 835-842 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z98-001 |
container_title |
Canadian Journal of Zoology |
container_volume |
76 |
container_issue |
5 |
container_start_page |
835 |
op_container_end_page |
842 |
_version_ |
1785576545598832640 |