Temperature-dependent consumption of spiders by little brown bats (Myotis lucifugus), but not northern long-eared bats (M. 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 p...
Main Authors: | , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
NRC Research Press (a division of Canadian Science Publishing)
2017
|
Subjects: | |
Online Access: | http://hdl.handle.net/1807/82742 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2017-0123 |
id |
ftunivtoronto:oai:localhost:1807/82742 |
---|---|
record_format |
openpolar |
spelling |
ftunivtoronto:oai:localhost:1807/82742 2023-05-15T17:46:45+02:00 Temperature-dependent consumption of spiders by little brown bats (Myotis lucifugus), but not northern long-eared bats (M. septentrionalis), in northern Canada Kaupas, Laura A. Barclay, Robert M.R. 2017-09-14 http://hdl.handle.net/1807/82742 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2017-0123 unknown NRC Research Press (a division of Canadian Science Publishing) 0008-4301 http://hdl.handle.net/1807/82742 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2017-0123 Article 2017 ftunivtoronto 2020-06-17T12:10:53Z 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 (M. 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 non-aerial prey, including spiders. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author. Article in Journal/Newspaper Northwest Territories University of Toronto: Research Repository T-Space Canada Northwest Territories |
institution |
Open Polar |
collection |
University of Toronto: Research Repository T-Space |
op_collection_id |
ftunivtoronto |
language |
unknown |
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 (M. 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 non-aerial prey, including spiders. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author. |
format |
Article in Journal/Newspaper |
author |
Kaupas, Laura A. Barclay, Robert M.R. |
spellingShingle |
Kaupas, Laura A. Barclay, Robert M.R. Temperature-dependent consumption of spiders by little brown bats (Myotis lucifugus), but not northern long-eared bats (M. septentrionalis), in northern Canada |
author_facet |
Kaupas, Laura A. Barclay, Robert M.R. |
author_sort |
Kaupas, Laura A. |
title |
Temperature-dependent consumption of spiders by little brown bats (Myotis lucifugus), but not northern long-eared bats (M. septentrionalis), in northern Canada |
title_short |
Temperature-dependent consumption of spiders by little brown bats (Myotis lucifugus), but not northern long-eared bats (M. septentrionalis), in northern Canada |
title_full |
Temperature-dependent consumption of spiders by little brown bats (Myotis lucifugus), but not northern long-eared bats (M. septentrionalis), in northern Canada |
title_fullStr |
Temperature-dependent consumption of spiders by little brown bats (Myotis lucifugus), but not northern long-eared bats (M. septentrionalis), in northern Canada |
title_full_unstemmed |
Temperature-dependent consumption of spiders by little brown bats (Myotis lucifugus), but not northern long-eared bats (M. septentrionalis), in northern Canada |
title_sort |
temperature-dependent consumption of spiders by little brown bats (myotis lucifugus), but not northern long-eared bats (m. septentrionalis), in northern canada |
publisher |
NRC Research Press (a division of Canadian Science Publishing) |
publishDate |
2017 |
url |
http://hdl.handle.net/1807/82742 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2017-0123 |
geographic |
Canada Northwest Territories |
geographic_facet |
Canada Northwest Territories |
genre |
Northwest Territories |
genre_facet |
Northwest Territories |
op_relation |
0008-4301 http://hdl.handle.net/1807/82742 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2017-0123 |
_version_ |
1766150569205956608 |