TY  - JOUR
A1  - Foucault, Quentin
A1  - Wieser, Andreas
A1  - Waldvogel, Ann-Marie
A1  - Feldmeyer, Barbara
A1  - Pfenninger, Markus
T1  - Rapid adaptation to high temperatures in Chironomus riparius
T2  - Ecology and evolution
N2  - Effects of seasonal or daily temperature variation on fitness and physiology of ectothermic organisms and their ways to cope with such variations have been widely studied. However, the way multivoltines organisms cope with temperature variations from one generation to the next is still not well understood. The aim of this study was to investigate whether the multivoltine midge Chironomus riparius Meigen (1803) responds mainly via acclimation as predicted by current theories or whether rapid genetic adaptation is involved. To investigate this issue, a common garden approach has been applied. A mix of larvae from five European populations was raised in the laboratory at three different pre‐exposure temperatures (PET): 14, 20, and 26°C. After three and five generations, respectively, larvae were exposed to three treatment temperatures (TT): 14, 20, and 26°C. Mortality was monitored for the first 48 hr and after emergence. After three generations, significant mortality rate differences depended on an interaction of PET and TT. This finding supports the hypothesis that chironomids respond rapidly to climatic variation via adaptive mechanisms and to a lesser extent via phenotypic plasticity. The result of the experiment indicates that three generations were sufficient to adapt to warm temperature, decreasing the mortality rate, highlighting the potential for chironomids to rapidly respond to seasonally changing conditions.
KW  - acclimation
KW  - Chironomidae
KW  - climate
KW  - developmental temperature
KW  - ectotherm
KW  - temperature adaptation
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/48582
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-485827
SN  - 2045-7758
N1  - This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
VL  - 8
IS  - 24
SP  - 12780
EP  - 12789
PB  - John Wiley & Sons, Inc.
CY  - [s. l.]
ER  -