Behavioral response to heat stress of twig-nesting canopy ants.

Details

Serval ID
serval:BIB_7F4CF9E1D14E
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Behavioral response to heat stress of twig-nesting canopy ants.
Journal
Oecologia
Author(s)
Bujan J., Yanoviak S.P.
ISSN
1432-1939 (Electronic)
ISSN-L
0029-8549
Publication state
Published
Issued date
04/2022
Peer-reviewed
Oui
Volume
198
Number
4
Pages
947-955
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
Tropical forests experience a relatively stable climate, but are not thermally uniform. The tropical forest canopy is hotter and thermally more variable than the understory. Heat stress in the canopy is expected to increase with global warming, potentially threatening its inhabitants. Here, we assess the impact of heating on the most abundant tropical canopy arthropods-ants. While foragers can escape hot branches, brood and workers inside twig nests might be unable to avoid heat stress. We examined nest choice and absconding behavior-nest evacuation in response to heat stress-of four common twig-nesting ant genera. We found that genera nesting almost exclusively in the canopy occupy smaller cavities compared to Camponotus and Crematogaster that nest across all forest strata. Crematogaster ants absconded at the lowest temperatures in heating experiments with both natural and artificial nests. Cephalotes workers were overall less likely to abscond from their nests. This is the first test of behavioral thermoregulation in tropical forest canopy ants, and it highlights different strategies and sensitivities to heat stress. Behavioral avoidance is the first line of defense against heat stress and will be crucial for small ectotherms facing increasing regional and local temperatures.
Keywords
Animals, Ants/physiology, Forests, Heat-Shock Response, Hot Temperature, Humans, Nesting Behavior, Temperature, Ectotherms, Formicidae, Heat stress, Insects, Thermal tolerance
Pubmed
Web of science
Open Access
Yes
Create date
14/03/2022 9:44
Last modification date
28/05/2022 6:34
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