RRC ID 72776
著者 Ittonen M, Hagelin A, Wiklund C, Gotthard K.
タイトル Local adaptation to seasonal cues at the fronts of two parallel, climate-induced butterfly range expansions.
ジャーナル Ecol Lett
Abstract Climate change allows species to expand polewards, but non-changing environmental features may limit expansions. Daylength is unaffected by climate and drives life cycle timing in many animals and plants. Because daylength varies over latitudes, poleward-expanding populations must adapt to new daylength conditions. We studied local adaptation to daylength in the butterfly Lasiommata megera, which is expanding northwards along several routes in Europe. Using common garden laboratory experiments with controlled daylengths, we compared diapause induction between populations from the southern-Swedish core range and recently established marginal populations from two independent expansion fronts in Sweden. Caterpillars from the northern populations entered diapause in clearly longer daylengths than those from southern populations, with the exception of caterpillars from one geographically isolated population. The northern populations have repeatedly and rapidly adapted to their local daylengths, indicating that the common use of daylength as seasonal cue need not strongly limit climate-induced insect range expansions.
巻・号 25(9)
ページ 2022-2033
公開日 2022-8-15
DOI 10.1111/ele.14085
PMID 35965449
PMC PMC9544862
MeSH Animals Butterflies* Cues Photoperiod Seasons Temperature
IF 8.665
リソース情報
GBIF The Suguru Igarashi Insect Collection (Lepidoptera: Lycaenidae) of The University Museum, The University of Tokyo The Shigeru Eda Insect Collection of The University Museum, The University of Tokyo Entomological Specimens of Museum of Nature and Human Activities, Hyogo Pref., Japan The Keiichi Omoto Butterfly Collection(Papilionidae), The University Museum, The University of Tokyo Insect specimens of Kashihara City Museum of Insect Insect collection of Itami City Museum of Insects