The frequency of multi-queen colonies increases with altitude in a Nearctic ant
Article first published online: 15 APR 2014
© 2014 The Royal Entomological Society
Volume 39, Issue 4, pages 527–529, August 2014
How to Cite
HEINZE, J. and RUEPPELL, O. (2014), The frequency of multi-queen colonies increases with altitude in a Nearctic ant. Ecological Entomology, 39: 527–529. doi: 10.1111/een.12119
- Issue published online: 14 JUL 2014
- Article first published online: 15 APR 2014
- Manuscript Accepted: 7 FEB 2014
- Manuscript Received: 28 AUG 2013
- DFG. Grant Numbers: He 1623/7-1, SFB 251
- colony founding;
- queen number;
- Temnothorax rugatulus
1. Most ants in boreal and alpine habitats are facultatively polygynous, i.e. their colonies may contain one or several queens. It was investigated how the proportion of polygynous colonies varies along an elevation gradient from 60 to 2700 m in the Nearctic ant Temnothorax rugatulus (Emery).
2. Across all populations, the proportion of polygynous colonies was positively correlated with altitude. The correlation was considerably stronger when only populations in the narrow area of the Chiricahua Mts, Arizona, were compared.
3. The dominance of polygynous colonies at high altitudes may be associated with selection against solitary colony founding by young queens. In areas with short summers and long winters, hibernation mortality of solitarily founding queens may select for alternative reproductive tactics, such as polygyny and colony founding by budding.
4. Colony founding tactics need to be taken into account to more fully understand altitudinal and latitudinal patterns of ant faunas.