<style face="normal" font="default" size="100%">Increased fluctuations of butterfly populations towards the northern edges of species' ranges</style>

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0<style face="normal" font="default" size="100%">Increased fluctuations of butterfly populations towards the northern edges of species' ranges</style><style face="normal" font="default" size="100%">Increased fluctuations of butterfly populations towards the northern edges of species' ranges</style>