Seasonal environments drive convergent evolution of a faster pace-of-life in tropical butterflies

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Halali , S , van Bergen , E , Breuker , C J , Brakefield , P M & Brattstrom , O 2021 , ' Seasonal environments drive convergent evolution of a faster pace-of-life in tropical butterflies ' , Ecology Letters , vol. 24 , no. 1 , pp. 102-112 . https://doi.org/10.1111/ele.13626

Title: Seasonal environments drive convergent evolution of a faster pace-of-life in tropical butterflies
Author: Halali, Sridhar; van Bergen, Erik; Breuker, Casper J.; Brakefield, Paul M.; Brattstrom, Oskar
Contributor: University of Helsinki, Helsinki Institute of Life Science HiLIFE
University of Helsinki, Univ Cambridge, University of Cambridge, Dept Zool, Behav Ecol Grp
Date: 2021-01
Language: eng
Number of pages: 11
Belongs to series: Ecology Letters
ISSN: 1461-023X
URI: http://hdl.handle.net/10138/326980
Abstract: New ecological niches that may arise due to climate change can trigger diversification, but their colonisation often requires adaptations in a suite of life-history traits. We test this hypothesis in species-rich Mycalesina butterflies that have undergone parallel radiations in Africa, Asia, and Madagascar. First, our ancestral state reconstruction of habitat preference, using c. 85% of extant species, revealed that early forest-linked lineages began to invade seasonal savannahs during the late Miocene-Pliocene. Second, rearing replicate pairs of forest and savannah species from the African and Malagasy radiation in a common garden experiment, and utilising published data from the Asian radiation, demonstrated that savannah species consistently develop faster, have smaller bodies, higher fecundity with an earlier investment in reproduction, and reduced longevity, compared to forest species across all three radiations. We argue that time-constraints for reproduction favoured the evolution of a faster pace-of-life in savannah species that facilitated their persistence in seasonal habitats.
Subject: Habitat templet
life&#8208
history
Miocene
parallel radiations
r
K strategy
savannahs
seasonality
time&#8208
constraints
trade&#8208
offs
R-SELECTION
BODY-SIZE
ADAPTIVE RADIATION
HISTORY EVOLUTION
K-SELECTION
BICYCLUS BUTTERFLIES
SATYRINE BUTTERFLIES
PARALLEL SPECIATION
HIGH-MORTALITY
CLIMATE-CHANGE
1181 Ecology, evolutionary biology
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