Giorgio Bertini
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Tag Archives: eusociality
Eusociality
Eusociality, the highest level of organization of animal sociality, is defined by the following characteristics: cooperative brood care (including brood care of offspring from other individuals), overlapping generations within a colony of adults, and a division of labour into reproductive … Continue reading
The Evolution of Extreme Altruism and Inequality in Insect Societies
In eusocial organisms, some individuals specialize in reproduction and others in altruistic helping. The evolution of eusociality is, therefore, also the evolution of remarkable inequality. For example, a colony of honeybees (Apis mellifera) may contain 50 000 females all of … Continue reading
Posted in Altruism, Colonial life, Eusociality, Evolution, Inequality, Social insects
Tagged altruism, colonial life, eusociality, evolution, inequality, social insects
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Evolution “for the Good of the Group”
Is evolution a team sport, or is the contest for survival played out strictly between individuals? There’s no question that natural selection acts on individual organisms: Those with favorable traits are more likely to pass along their genes to the … Continue reading
Posted in Eusociality, Group evolution, Group processes, Group selection, Groups
Tagged eusociality, group evolution, group processes, group selection, groups
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One giant leap: How Insects achieved Altruism and Colonial Life
The advanced colonial state of eusociality has evolved in insects as a defense of nest sites within foraging distance of persistent food sources. In the Hymenoptera, the final step in the approach to eusociality is through a suite of preadaptations … Continue reading
Posted in Altruism, Colonial life, Eusociality, Evolution, Social insects, Sociobiology
Tagged altruism, colonial life, eusociality, evolution, social insects, sociobiology
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The Evolution of Eusociality
Eusociality, in which some individuals reduce their own lifetime reproductive potential to raise the offspring of others, underlies the most advanced forms of social organization and the ecologically dominant role of social insects and humans. For the past four decades … Continue reading
Posted in Eusociality, Evolution
Tagged eusociality, evolution
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