The significance of latitudinal variation in body size in a holarctic ant, Leptothorax acervorum

@article{Heinze2003TheSO,
  title={The significance of latitudinal variation in body size in a holarctic ant, Leptothorax acervorum},
  author={J{\"u}rgen Heinze and Susanne Foitzik and Birgit Fischer and Tina Wanke and Vladilen E Kipyatkov},
  journal={Ecography},
  year={2003},
  volume={26},
  pages={349-355}
}
The mean body size of workers of the holarctic ant Leptothorax acervorum increases with latitude. Workers from populations near the Polar Circle were 10% larger than workers from central Europe. This gradient does not appear to be associated with variation in colony size. According to controlled rearing experiments with brood from populations in Cape Kartesh, Karelia (67°N) and Erlangen, Germany (49.7°N), larger adult body size in boreal populations is not an epiphenomenon of slow cell growth… 

Figures from this paper

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

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