Book contents
- Frontmatter
- Contents
- Contributors
- Acknowledgements
- Introduction
- 1 Are behavioral classifications blinders to studying natural variation?
- 2 Life beneath silk walls: a review of the primitively social Embiidina
- 3 Postovulation parental investment and parental care in cockroaches
- 4 The spectrum of eusociality in termites
- 5 Maternal care in the Hemiptera: ancestry, alternatives, and current adaptive value
- 6 Evolution of paternal care in the giant water bugs (Heteroptera: Belostomatidae)
- 7 The evolution of sociality in aphids: a clone's-eye view
- 8 Ecology and evolution of social behavior among Australian gall thrips and their allies
- 9 Interactions among males, females and offspring in bark and ambrosia beetles: the significance of living in tunnels for the evolution of social behavior
- 10 Biparental care and social evolution in burying beetles: lessons from the larder
- 11 Subsocial behavior in Scarabaeinae beetles
- 12 The evolution of social behavior in Passalidae (Coleoptera)
- 13 The evolution of social behavior in the augochlorine sweat bees (Hymenoptera: Halictidae) based on a phylogenetic analysis of the genera
- 14 Demography and sociality in halictine bees (Hymenoptera: Halictidae)
- 15 Behavioral environments of sweat bees (Halictinae) in relation to variability in social organization
- 16 Intrinsic and extrinsic factors associated with social evolution in allodapine bees
- 17 Cooperative breeding in wasps and vertebrates: the role of ecological constraints
- 18 Morphologically ‘primitive’ ants: comparative review of social characters, and the importance of queen–worker dimorphism
- 19 Social conflict and cooperation among founding queens in ants (Hymenoptera: Formicidae)
- 20 Social evolution in the Lepidoptera: ecological context and communication in larval societies
- 21 Sociality and kin selection in Acari
- 22 Colonial web-building spiders: balancing the costs and benefits of group-living
- 23 Causes and consequences of cooperation and permanent-sociality in spiders
- 24 Explanation and evolution of social systems
- Organism index
- Subject index
7 - The evolution of sociality in aphids: a clone's-eye view
Published online by Cambridge University Press: 06 July 2010
- Frontmatter
- Contents
- Contributors
- Acknowledgements
- Introduction
- 1 Are behavioral classifications blinders to studying natural variation?
- 2 Life beneath silk walls: a review of the primitively social Embiidina
- 3 Postovulation parental investment and parental care in cockroaches
- 4 The spectrum of eusociality in termites
- 5 Maternal care in the Hemiptera: ancestry, alternatives, and current adaptive value
- 6 Evolution of paternal care in the giant water bugs (Heteroptera: Belostomatidae)
- 7 The evolution of sociality in aphids: a clone's-eye view
- 8 Ecology and evolution of social behavior among Australian gall thrips and their allies
- 9 Interactions among males, females and offspring in bark and ambrosia beetles: the significance of living in tunnels for the evolution of social behavior
- 10 Biparental care and social evolution in burying beetles: lessons from the larder
- 11 Subsocial behavior in Scarabaeinae beetles
- 12 The evolution of social behavior in Passalidae (Coleoptera)
- 13 The evolution of social behavior in the augochlorine sweat bees (Hymenoptera: Halictidae) based on a phylogenetic analysis of the genera
- 14 Demography and sociality in halictine bees (Hymenoptera: Halictidae)
- 15 Behavioral environments of sweat bees (Halictinae) in relation to variability in social organization
- 16 Intrinsic and extrinsic factors associated with social evolution in allodapine bees
- 17 Cooperative breeding in wasps and vertebrates: the role of ecological constraints
- 18 Morphologically ‘primitive’ ants: comparative review of social characters, and the importance of queen–worker dimorphism
- 19 Social conflict and cooperation among founding queens in ants (Hymenoptera: Formicidae)
- 20 Social evolution in the Lepidoptera: ecological context and communication in larval societies
- 21 Sociality and kin selection in Acari
- 22 Colonial web-building spiders: balancing the costs and benefits of group-living
- 23 Causes and consequences of cooperation and permanent-sociality in spiders
- 24 Explanation and evolution of social systems
- Organism index
- Subject index
Summary
ABSTRACT
A number of aphid species produce individuals, termed soldiers, that defend the colony by attacking predators. Soldiers have either reduced or zero direct reproductive fitness. Their behavior is therefore altruistic in the classical sense: an individual is behaving in a way that incurs reproductive costs on itself and confers reproductive benefits on another. However, comparison with the better–known eusocial insects (Hymenoptera, Isoptera) indicates that there are important differences between clonal and sexual social animals.
Here we take a clone's–eye view and conclude that many facets of aphid sociality are best thought of in terms of resource allocation: for example, the choice between investment in defense and reproduction. This view considerably simplifies some aspects of the problem and highlights the qualitatively different nature of genetic heterogeneity in colonies of aphids and of other social insects. In sexually reproducing social insects, each individual usually has a different genome, which leads to genetic conflicts of interest between individuals. In social aphids, all members of a clone have identical genomes, barring new mutations, and there should be no disagreement among clonemates about investment decisions. Genetic heterogeneity within colonies can arise, but principally through clonal mixing, and this means that investment decisions will vary between different clones rather than among all individuals.
- Type
- Chapter
- Information
- The Evolution of Social Behaviour in Insects and Arachnids , pp. 150 - 165Publisher: Cambridge University PressPrint publication year: 1997
- 43
- Cited by