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Body size but not colony size increases with altitude in the holarctic ant, Leptothorax acervorum

Bernadou, Abel ; Römermann, Christine ; Gratiashvili, Nana ; Heinze, Jürgen


1. Bergmann's rule states that organisms inhabiting colder environments show an increase in body size or mass in comparison to their conspecifics living in warmer climates. Although originally proposed for homoeothermic vertebrates, this rule was later extended to ectotherms. In social insects, only a few studies have tested this rule and the results were ambiguous. Here, 'body size' can be ...


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