Title
Local adaptation and the potential effects of a contaminant on predator avoidance and antipredator responses under global warming : a space-for-time substitution approach Local adaptation and the potential effects of a contaminant on predator avoidance and antipredator responses under global warming : a space-for-time substitution approach
Author
Faculty/Department
Faculty of Sciences. Biology
Publication type
article
Publication
[Oxford] :Blackwell Pub ,
Subject
Biology
Source (journal)
Evolutionary applications. - [Oxford], 2008, currens
Volume/pages
7(2014) :3 , p. 421-430
ISSN
1752-4571
ISI
000332834400009
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The ability to deal with temperature-induced changes in interactions with contaminants and predators under global warming is one of the outstanding, applied evolutionary questions. For this, it is crucial to understand how contaminants will affect activity levels, predator avoidance and antipredator responses under global warming and to what extent gradual thermal evolution may mitigate these effects. Using a space-for-time substitution approach, we assessed the potential for gradual thermal evolution shaping activity (mobility and foraging), predator avoidance and antipredator responses when Ischnura elegans damselfly larvae were exposed to zinc in a common-garden warming experiment at the mean summer water temperatures of shallow water bodies at southern and northern latitudes (24 and 20°C, respectively). Zinc reduced mobility and foraging, predator avoidance and escape swimming speed. Importantly, high-latitude populations showed stronger zinc-induced reductions in escape swimming speed at both temperatures, and in activity levels at the high temperature. The latter indicates that local thermal adaptation may strongly change the ecological impact of contaminants under global warming. Our study underscores the critical importance of considering local adaptation along natural gradients when integrating biotic interactions in ecological risk assessment, and the potential of gradual thermal evolution mitigating the effects of warming on the vulnerability to contaminants.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/25d827/28c3944f.pdf
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