Were Workers of Eusocial Hymenoptera Initially Altruistic or Oppressed?
نویسندگان
چکیده
منابع مشابه
Queens versus workers: sex-ratio conflict in eusocial Hymenoptera
Studies of sex-ratio conflict in the eusocial Hymenoptera (ants, bees and wasps) have provided the most rigorous tests of kin selection theory. The hymenopteran haplodiploid system of sex determination generally renders workers more closely related to their sisters than to their brothers, whereas queens are equally related to their sons and daughters. Kin selection theory therefore predicts tha...
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Female parthenogenesis, or thelytoky, is particularly common in solitary Hymenoptera. Only more recently has it become clear that many eusocial species also regularly reproduce thelytokously, and here we provide a comprehensive overview. Especially in ants, thelytoky underlies a variety of idiosyncratic life histories with unique evolutionary and ecological consequences. In all eusocial species...
متن کاملThe number of reproductive workers in highly eusocial Hymenoptera: monogyny and monandry.
Haplodiploidy results in relatedness asymmetries between colony members of highly eusocial Hymenoptera. As a consequence, queen and reproductive workers are more related to their own sons than to each other's male offspring. Kin selection theory predicts multiple optima in male parentage: either the queen or the workers should produce all the males. Nevertheless, shared male parentage is common...
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The emergence of eusociality ("true sociality") in several insect lineages represents one of the most successful evolutionary adaptations in the animal kingdom in terms of species richness and global biomass. In contrast to solitary insects, eusocial insects evolved a set of unique behavioral and physiological traits such as reproductive division of labor and cooperative brood care, which likel...
متن کاملSex ratio conflict and worker production in eusocial hymenoptera.
The best known of the conflicts occurring in eusocial Hymenoptera is queen-worker conflict over sex ratio. So far, sex ratio theory has mostly focused on optimal investment in the production of male versus female sexuals, neglecting the investment in workers. Increased investment in workers decreases immediate sexual productivity but increases expected future colony productivity. Thus, an impor...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1974
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.71.3.671