Hot bats go cold: heterothermy in neotropical bats
Torpor is common in bats, but has historically been viewed as an energy-saving technique reserved for temperate and subarctic climates; however, torpor use is common across several tropical bat families. Central America hosts a great diversity of bats with approximately 150 species, yet data from th...
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crcansciencepubl:10.1139/cjz-2016-0318 2023-12-17T10:50:47+01:00 Hot bats go cold: heterothermy in neotropical bats Czenze, Zenon J. Dunbar, Miranda B. 2017 http://dx.doi.org/10.1139/cjz-2016-0318 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2016-0318 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2016-0318 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 95, issue 12, page 909-912 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2017 crcansciencepubl https://doi.org/10.1139/cjz-2016-0318 2023-11-19T13:38:22Z Torpor is common in bats, but has historically been viewed as an energy-saving technique reserved for temperate and subarctic climates; however, torpor use is common across several tropical bat families. Central America hosts a great diversity of bats with approximately 150 species, yet data from this area are lacking compared with tropical Africa and Australia. We investigated thermoregulatory responses of bats from neotropical Belize and captured adult bats in the tropical forests of Lamanai Archeological Reserve, Belize. After a 12 h acclimation period, we recorded rectal temperature prior to and after exposing bats to an ambient temperature (T a ) of 7 °C for up to 2 h in an environmental chamber. All 11 species across four families expressed torpor to some degree upon exposure to cool temperatures. Individuals from Vespertilionidae defended the lowest resting body temperature (T b ) and showed the greatest decrease in T b after acute exposure to low T a . Our data help to establish a new spectrum of physiological ability for this group of mammals and shed light on the evolution of torpor and heterothermy. We show that energy conservation is important even in warm and energetically stable environmental conditions. Understanding how and why torpor is used in warm climates will help to better define paradigms in physiological ecology. Article in Journal/Newspaper Subarctic Canadian Science Publishing (via Crossref) Canadian Journal of Zoology 95 12 909 912 |
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 Czenze, Zenon J. Dunbar, Miranda B. Hot bats go cold: heterothermy in neotropical bats |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Torpor is common in bats, but has historically been viewed as an energy-saving technique reserved for temperate and subarctic climates; however, torpor use is common across several tropical bat families. Central America hosts a great diversity of bats with approximately 150 species, yet data from this area are lacking compared with tropical Africa and Australia. We investigated thermoregulatory responses of bats from neotropical Belize and captured adult bats in the tropical forests of Lamanai Archeological Reserve, Belize. After a 12 h acclimation period, we recorded rectal temperature prior to and after exposing bats to an ambient temperature (T a ) of 7 °C for up to 2 h in an environmental chamber. All 11 species across four families expressed torpor to some degree upon exposure to cool temperatures. Individuals from Vespertilionidae defended the lowest resting body temperature (T b ) and showed the greatest decrease in T b after acute exposure to low T a . Our data help to establish a new spectrum of physiological ability for this group of mammals and shed light on the evolution of torpor and heterothermy. We show that energy conservation is important even in warm and energetically stable environmental conditions. Understanding how and why torpor is used in warm climates will help to better define paradigms in physiological ecology. |
format |
Article in Journal/Newspaper |
author |
Czenze, Zenon J. Dunbar, Miranda B. |
author_facet |
Czenze, Zenon J. Dunbar, Miranda B. |
author_sort |
Czenze, Zenon J. |
title |
Hot bats go cold: heterothermy in neotropical bats |
title_short |
Hot bats go cold: heterothermy in neotropical bats |
title_full |
Hot bats go cold: heterothermy in neotropical bats |
title_fullStr |
Hot bats go cold: heterothermy in neotropical bats |
title_full_unstemmed |
Hot bats go cold: heterothermy in neotropical bats |
title_sort |
hot bats go cold: heterothermy in neotropical bats |
publisher |
Canadian Science Publishing |
publishDate |
2017 |
url |
http://dx.doi.org/10.1139/cjz-2016-0318 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2016-0318 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2016-0318 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Canadian Journal of Zoology volume 95, issue 12, page 909-912 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjz-2016-0318 |
container_title |
Canadian Journal of Zoology |
container_volume |
95 |
container_issue |
12 |
container_start_page |
909 |
op_container_end_page |
912 |
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1785575854478196736 |