Caste-dependent brood retrieval by workers in the ant Formica exsecta
نویسندگان
چکیده
منابع مشابه
Contrasting population genetic structure for workers and queens in the putatively unicolonial ant Formica exsecta.
The theory of inclusive fitness provides a powerful explanation for reproductive altruism in social insects, whereby workers gain inclusive fitness benefit by rearing the brood of related queens. Some ant species, however, have unicolonial population structures where multiple nests, each containing numerous queens, are interconnected and individuals move freely between nests. In such cases, nes...
متن کاملInbreeding and reproductive investment in the ant Formica exsecta.
In social animals, inbreeding depression may manifest by compromising care or resources individuals receive from inbred group members. We studied the effects of worker inbreeding on colony productivity and investment in the ant Formica exsecta. The production of biomass decreased with increasing inbreeding, as did biomass produced per worker. Inbred colonies produced fewer gynes (unmated reprod...
متن کاملReproductive parameters vary with social and ecological factors in the polygynous ant Formica exsecta
Due to their haplo-diploid sex determination system and the resulting conflict over optimal sex allocation between queens and workers, social Hymenoptera have become important model species to study variation in sex allocation. While many studies indeed reported sex allocation to be affected by social factors such as colony kin structure or queen number, others, however, found that sex allocati...
متن کاملColony sex ratios vary with queen number but not relatedness asymmetry in the ant Formica exsecta.
Split-sex-ratio theory assumes that conflict over whether to produce predominately males or female reproductives (gynes) is won by the workers in haplodiploid insect societies and the outcome is determined by colony kin structure. Tests of the theory have the potential to provide support for kin-selection theory and evidence of social conflict. We use natural variation in kinship among polygyno...
متن کاملInbreeding and sex-biased gene flow in the ant Formica exsecta.
The objective of this study was to assess breeding and dispersal patterns of both males and females in a monogyne (a single queen per colony) population of ants. Monogyny is commonly associated with extensive nuptial flights, presumably leading to considerable gene flow over large areas. Opposite to these expectations we found evidence of both inbreeding and sex-biased gene flow in a monogyne p...
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ژورنال
عنوان ژورنال: Animal Behaviour
سال: 2018
ISSN: 0003-3472
DOI: 10.1016/j.anbehav.2018.04.015