Vidal, Mathilde and Heinze, Juergen (2022) Assisted dispersal and reproductive success in an ant species with matchmaking. ECOLOGY AND EVOLUTION, 12 (8): e9236. ISSN 2045-7758
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Workers of the ant Cardiocondyla elegans drop female sexuals into the nest entrance of other colonies to promote outbreeding with unrelated, wingless males. Corroborating the results from previous years, we document that carrier and carried female sexuals are typically related and that the transfer initially occurs mostly from their joint natal colonies to unrelated colonies. Female sexuals mate multiply with up to seven genetically distinguishable males. Contrary to our expectation, the colony growth rate of multiple-mated and outbred female sexuals was lower than that of inbred or single-mated females, leading to the question of why female sexuals mate multiply at all. Despite the obvious costs, multiple mating might be a way for female sexuals to "pay rent" for hibernation in an alien nest. We argue that in addition to evade inbreeding depression from regular sibling mating over many generations, assisted dispersal might also be a strategy for minimizing the risk of losing all reproductive investment when nests are flooded in winter.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CARDIOCONDYLA-ELEGANS; GENETIC DIVERSITY; LIFE-SPAN; HYMENOPTERA; RELATEDNESS; MATE; Formicidae; Hymenoptera; mating behavior; outbreeding; polyandry; 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: | 07 Feb 2024 07:57 |
| Last Modified: | 07 Feb 2024 07:57 |
| URI: | https://pred.uni-regensburg.de/id/eprint/56953 |
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