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The future components of inclusive fitness: accounting for interactions between members of overlapping generations
- Source :
- Animal Behaviour. 40:127-134
- Publication Year :
- 1990
- Publisher :
- Elsevier BV, 1990.
-
Abstract
- Indirect fitness is the portion of an individual's inclusive fitness due to the effects of the individual's behaviour on the reproductive value of non-descendant kin. Indirect fitness may play a role in the evolutionary maintenance of cooperative breeding, in which some individuals help others to breed. Recently, theoretical and empirical studies have addressed the future component of indirect fitness, i.e. the effects of an individual's current behaviour on the subsequent survival and reproduction of nondescendant kin. A difficulty in accounting future fitness effects arises when generations overlap in a cooperative breeding system (as is normally the case). Individuals of one generation can serve as helpers to individuals of the previous generation, ‘returning from the future’ to compound their ancestors' fitness. This paper classifies the types of fitness effects arising from generational interactions in cooperative breeding systems. This classification is then used to suggest methods of measuring future indirect and future direct (individual) fitness so that they are directly comparable.
Details
- ISSN :
- 00033472
- Volume :
- 40
- Database :
- OpenAIRE
- Journal :
- Animal Behaviour
- Accession number :
- edsair.doi...........27cd269ecc4515b788fee1fbbfac7168
- Full Text :
- https://doi.org/10.1016/s0003-3472(05)80672-4