Infanticide by subordinates influences reproductive sharing in cooperatively breeding meerkats
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چکیده
منابع مشابه
Infanticide by subordinates influences reproductive sharing in cooperatively breeding meerkats.
In cooperative animal societies, dominant females typically show higher breeding success than subordinates, and are commonly believed to control the extent of reproductive sharing. However, studies of social insect societies reveal that subordinates too can interfere with the breeding attempts of others, with important implications for the distribution of fitness within colonies. Here, we show ...
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For dominant individuals in cooperatively breeding species, the presence of subordinates is associated with both benefits (i.e. increased reproductive output and other group-living benefits) and costs (i.e. intrasexual competition on reproduction). The biological market theory predicts that dominant individuals are tolerant to same-sex group members when there are only a few subordinates, so as...
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Species may become obligate cooperative breeders when parents are unable to raise their offspring unassisted. We measured the daily energy expenditure of mothers, helpers and offspring during peak lactation in cooperatively breeding meerkats Suricata suricatta using the doubly labelled water technique. Lactating mothers expended more energy per day than allo-lactating subordinate females, non-l...
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Common marmosets are cooperatively breeding monkeys that exhibit high female reproductive skew. Subordinate females usually fail to breed as a consequence of ovulation suppression and inhibition of sexual behavior, and, even when they do breed, typically rear fewer infants than dominants. We evaluated possible mechanisms of post-conception reproductive competition by comparing hormonal profiles...
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ژورنال
عنوان ژورنال: Biology Letters
سال: 2006
ISSN: 1744-9561,1744-957X
DOI: 10.1098/rsbl.2006.0463