Journal
GLOBAL CHANGE BIOLOGY
Volume 21, Issue 10, Pages 3586-3594Publisher
WILEY
DOI: 10.1111/gcb.12932
Keywords
chemical communication; climate change; insects; metabolic theory of ecology; nontrophic interactions; temperature
Funding
- Natural Sciences and Engineering Research Council of Canada
- Canada Research Chair in Biological Control
- Development of postdoc positions of the USB project [CZ.1.07/2.3.00/30.0049]
- European Social Fund
- state budget of the Czech Republic
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Knowledge of how temperature influences an organism's physiology and behaviour is of paramount importance for understanding and predicting the impacts of climate change on species' interactions. While the behaviour of many organisms is driven by chemical information on which they rely on to detect resources, conspecifics, natural enemies and competitors, the effects of temperature on infochemical-mediated interactions remain largely unexplored. Here, we experimentally show that temperature strongly influences the emission of infochemicals by ladybeetle larvae, which, in turn, modifies the oviposition behaviour of conspecific females. Temperature also directly affects female perception of infochemicals and their oviposition behaviour. Our results suggest that temperature-mediated effects on chemical communication can influence flows across system boundaries (e.g. immigration and emigration) and thus alter the dynamics and stability of ecological networks. We therefore argue that investigating the effects of temperature on chemical communication is a crucial step towards a better understanding of the functioning of ecological communities facing rapid environmental changes.
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