Rueppell, O. and Heinze, Juergen and Hoelldobler, B. (2001) Alternative reproductive tactics in the queen-size-dimorphic ant Leptothorax rugatulus (Emery) and their consequences for genetic population structure. BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY, 50 (2). pp. 189-197. ISSN 0340-5443, 1432-0762
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We report the results of a comprehensive investigation of the queen size dimorphism in the North American ant Leptothorax rugatulus. Employing allozymes and microsatellites as genetic markers, we found no evidence that the gene pools of large (macrogynes) and small (microgynes) queens are distinct. Queens in polygynous colonies are related to each other, supporting the hypothesis that colonies with more than one queen commonly arise by the adoption of daughter queens into their natal colonies. The higher fat content of macrogynes, their predominance in monogynous societies and in small founding colonies, and their greater flight activity favor the view that macrogynes predominantly found colonies independently, while microgynes are specialized for dependent colony founding by readoption. When comparing the genetic structure of three different subpopulations, we found that the alternative life histories had no significant effect on population viscosity at the scale investigated.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | POLYGYNOUS ANT; ACERVORUM HYMENOPTERA; SYMPATRIC SPECIATION; SOCIAL-ORGANIZATION; SOLENOPSIS-INVICTA; MYRMICA-RUGINODIS; FORMICIDAE; EVOLUTION; STRATEGIES; NUMBER; size polymorphism; microgynes; reproductive tactics; life history evolution; population structure |
| Subjects: | 500 Science > 590 Zoological sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Zoologie > Zoologie/Evolutionsbiologie (Prof. Dr. Jürgen Heinze) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Dec 2021 08:14 |
| Last Modified: | 21 Dec 2021 08:14 |
| URI: | https://pred.uni-regensburg.de/id/eprint/41271 |
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