Korb, Judith and Heinze, Juergen (2016) Major Hurdles for the Evolution of Sociality. In: UNSPECIFIED Annual Review of Entomology,, 61 . ANNUAL REVIEWS, PALO ALTO, pp. 297-316. ISBN 978-0-8243-0161-3
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Why do most animals live solitarily, while complex social life is restricted to a few cooperatively breeding vertebrates and social insects? Here, we synthesize concepts and theories in social evolution and discuss its underlying ecological causes. Social evolution can be partitioned into (a) formation of stable social groups, (b) evolution of helping, and (c) transition to a new evolutionary level. Stable social groups rarely evolve due to competition over food and/or reproduction. Food competition is overcome in social insects with central-place foraging or bonanza-type food resources, whereas competition over reproduction commonly occurs because staying individuals are rarely sterile. Hence, the evolution of helping is shaped by direct and indirect fitness options and helping is only altruism if it reduces the helper's direct fitness. The helper's capability to gain direct fitness also creates within-colony conflict. This prevents transition to a new evolutionary level.
| Item Type: | Book Section |
|---|---|
| Uncontrolled Keywords: | DIVISION-OF-LABOR; KIN-SELECTION; WORKER REPRODUCTION; INCLUSIVE FITNESS; INSECT SOCIETIES; EUSOCIAL HYMENOPTERA; MULTILEVEL SELECTION; LEPTOTHORAX ANTS; LOWER TERMITE; ALTRUISM; social evolution; social insects; inclusive fitness; competition; reproductive conflict; conflict |
| 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: | 20 Jul 2020 13:42 |
| Last Modified: | 20 Jul 2020 13:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/2737 |
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