Request PDF on ResearchGate | Lifetime monogamy and the evolution of eusociality | All evidence currently available indicates that obligatory sterile eusocial. Eusociality evolved repeatedly in different orders of animals, particularly the . If a queen is lifetime-strictly monogamous – in other words, she mates with only one individual during her entire life – her progeny will be. Focusing on lifetime monogamy as a universal precondition for the evolution of obligate eusociality simplifies the theory and may help to resolve controversies.

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The evolutionary maintenance of cooperative nest construction in sociable weavers Philetairus socius. Eusociality evolved repeatedly in different orders of animalsparticularly the Hymenoptera evloution waspsbeesand ants. Thus, sisters will propagate their own genes more by helping their mothers to raise more sisters, than to leave the nest and raise their own daughters.

Hamilton proposed that eusociality arose in social Hymenoptera by kin selection because of their interesting genetic sex determination trait of haplodiploidy. Isoptera Infertility Wasps Bees. Each species that practices reproductive altruism is ruled by a queen, the only breeding female who is larger than evolutionn rest. In species where philopatry predominates, and there are monogzmy emigrants to the nest, intense inbreeding can occur, as is the case in eusocial species.

Ecological factors were also probably a precursor to eusociality. Haplodiploidy and Kin selection. Topics Discussed in This Paper. Download PDF Cite this paper. Nowak’s paper, however, received major criticisms for erroneously separating inclusive fitness theory from “standard natural selection”.


Polygyny in Nasutitermes species: This ‘true sociality’ in animals, in which sterile monoagmy work to further the reproductive success of others, is found in termitesambrosia beetlesgall-dwelling aphidsthripsmarine sponge-dwelling shrimp Synalpheus regalisnaked mole-rats Heterocephalus glaberand the insect order Hymenoptera which includes bees, wasps, and ants.

Yves Roisin 25 Estimated H-index: Ancestral monogamy shows kin selection is key to the evolution lietime eusociality. In Organization of insect societies—from genomes to sociocomplexity eds. In The Origin of Specieshe described the existence of sterile worker castes in the social insects as “the one special difficulty, which at first appeared to me insuperable and actually fatal to my whole theory”.

Evolution of eusociality – Wikipedia

Cited monogamj Source Add To Collection. The Ecology of Social Evolution in Termites. Explicit use of et al. Boris Baer 30 Estimated H-index: The genetical evolution of social behaviour.

This seems to be the ancestral state in all Hymenopteran lineages that have evolved eusociality. They depend on interactions with other termites for their gut to be recolonized, thus forcing them to become social.

Evolution of eusociality

RatnieksKevin R. Paul Eggleton 47 Estimated H-index: Biased gene conversion rates are also higher in eusocial species. If the trait of sterility can be carried by some individuals without expression, and those moonogamy that do express sterility help reproductive relatives, the sterile trait can persist and evolve.


Kin selection is when yhe help close relatives with their reproduction process, seemingly because relatives will propagate some of the individual’s own genes. Cited 55 Source Add To Collection. HowardPhilip M. Skip to search form Skip to main content. Promiscuity and the evolutionary transition to complex societies nature [IF: Frequent colony fusions provide opportunities for helpers to become reproductives in the termite Zootermopsis nevadensis Kenneth J.

An Introduction to Termites: This is when most members of the group give up their own breeding opportunities in order to participate in the reproductive success of other individuals. From This Paper Figures, tables, and topics from this paper.

Go High or Go Low? This means there is a high cost eusocialit dispersing individual may not find another source before it starvesand these resources must be defended for the group to survive. Thorne Behavioral Ecology and Sociobiology Relatedness predicts multiple measures of investment in cooperative nest construction in sociable weavers.

The separation of sexual activity and reproduction in human social evolution. Lifetime monogamy and the evolution of eusociality. Cell DNA Flagella Eukaryotes symbiogenesis chromosome endomembrane system mitochondria nucleus plastids In animals eye hair auditory ossicle nervous system brain.

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