Temperature-dependent consumption of spiders by little brown bats ( Myotis lucifugus), but not northern long-eared bats ( Myotis septentrionalis), in northern Canada
Intraspecific variation in diet has been observed in many species, including the geographically widespread little brown bat (Myotis lucifugus (Le Conte, 1831)). Spider consumption by M. lucifugus is more common in northern regions of their distribution, possibly due to reduced availability of aerial...
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crcansciencepubl:10.1139/cjz-2017-0123 2024-09-30T14:40:26+00:00 Temperature-dependent consumption of spiders by little brown bats ( Myotis lucifugus), but not northern long-eared bats ( Myotis septentrionalis), in northern Canada Kaupas, L.A. Barclay, R.M.R. 2018 http://dx.doi.org/10.1139/cjz-2017-0123 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2017-0123 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2017-0123 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 96, issue 3, page 261-268 ISSN 0008-4301 1480-3283 journal-article 2018 crcansciencepubl https://doi.org/10.1139/cjz-2017-0123 2024-09-05T04:11:16Z Intraspecific variation in diet has been observed in many species, including the geographically widespread little brown bat (Myotis lucifugus (Le Conte, 1831)). Spider consumption by M. lucifugus is more common in northern regions of their distribution, possibly due to reduced availability of aerial prey during low temperatures. However, in previously studied northern regions, M. lucifugus was the only bat species captured. The purpose of our study was to examine whether there is overlap in the diet and morphology of M. lucifugus and the northern long-eared bat (Myotis septentrionalis (Trouessart, 1897)), a species that commonly gleans prey, in the Northwest Territories, Canada. There were significant differences in the dietary composition and wing morphology of the two species, suggesting partitioning of resources. Both species consumed spiders, although unlike M. septentrionalis, the probability of M. lucifugus consuming spiders was significantly greater at low temperatures. Myotis lucifugus demonstrated a different pattern of spider consumption than in other northern regions where it consumes spiders throughout the summer, suggesting the possibility of resource competition where M. lucifugus overlaps with M. septentrionalis. Further research is needed to determine whether arthropods are seasonally limiting at high latitudes and to examine how these species capture nonaerial prey, including spiders. Article in Journal/Newspaper Northwest Territories Canadian Science Publishing Canada Northwest Territories Canadian Journal of Zoology 96 3 261 268 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Intraspecific variation in diet has been observed in many species, including the geographically widespread little brown bat (Myotis lucifugus (Le Conte, 1831)). Spider consumption by M. lucifugus is more common in northern regions of their distribution, possibly due to reduced availability of aerial prey during low temperatures. However, in previously studied northern regions, M. lucifugus was the only bat species captured. The purpose of our study was to examine whether there is overlap in the diet and morphology of M. lucifugus and the northern long-eared bat (Myotis septentrionalis (Trouessart, 1897)), a species that commonly gleans prey, in the Northwest Territories, Canada. There were significant differences in the dietary composition and wing morphology of the two species, suggesting partitioning of resources. Both species consumed spiders, although unlike M. septentrionalis, the probability of M. lucifugus consuming spiders was significantly greater at low temperatures. Myotis lucifugus demonstrated a different pattern of spider consumption than in other northern regions where it consumes spiders throughout the summer, suggesting the possibility of resource competition where M. lucifugus overlaps with M. septentrionalis. Further research is needed to determine whether arthropods are seasonally limiting at high latitudes and to examine how these species capture nonaerial prey, including spiders. |
format |
Article in Journal/Newspaper |
author |
Kaupas, L.A. Barclay, R.M.R. |
spellingShingle |
Kaupas, L.A. Barclay, R.M.R. Temperature-dependent consumption of spiders by little brown bats ( Myotis lucifugus), but not northern long-eared bats ( Myotis septentrionalis), in northern Canada |
author_facet |
Kaupas, L.A. Barclay, R.M.R. |
author_sort |
Kaupas, L.A. |
title |
Temperature-dependent consumption of spiders by little brown bats ( Myotis lucifugus), but not northern long-eared bats ( Myotis septentrionalis), in northern Canada |
title_short |
Temperature-dependent consumption of spiders by little brown bats ( Myotis lucifugus), but not northern long-eared bats ( Myotis septentrionalis), in northern Canada |
title_full |
Temperature-dependent consumption of spiders by little brown bats ( Myotis lucifugus), but not northern long-eared bats ( Myotis septentrionalis), in northern Canada |
title_fullStr |
Temperature-dependent consumption of spiders by little brown bats ( Myotis lucifugus), but not northern long-eared bats ( Myotis septentrionalis), in northern Canada |
title_full_unstemmed |
Temperature-dependent consumption of spiders by little brown bats ( Myotis lucifugus), but not northern long-eared bats ( Myotis septentrionalis), in northern Canada |
title_sort |
temperature-dependent consumption of spiders by little brown bats ( myotis lucifugus), but not northern long-eared bats ( myotis septentrionalis), in northern canada |
publisher |
Canadian Science Publishing |
publishDate |
2018 |
url |
http://dx.doi.org/10.1139/cjz-2017-0123 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2017-0123 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2017-0123 |
geographic |
Canada Northwest Territories |
geographic_facet |
Canada Northwest Territories |
genre |
Northwest Territories |
genre_facet |
Northwest Territories |
op_source |
Canadian Journal of Zoology volume 96, issue 3, page 261-268 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjz-2017-0123 |
container_title |
Canadian Journal of Zoology |
container_volume |
96 |
container_issue |
3 |
container_start_page |
261 |
op_container_end_page |
268 |
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1811642923322703872 |