Cooperative breeders do cooperate.
نویسندگان
چکیده
منابع مشابه
Do avian cooperative breeders live longer?
Cooperative breeding is not common in birds but intriguingly over-represented in several families, suggesting that predisposing factors, similar ecological constraints or a combination of the two facilitate the evolution of this breeding strategy. The life-history hypothesis proposes that cooperative breeding is facilitated by high annual survival, which increases the local population and leads...
متن کاملLife-history traits as causes or consequences of social behaviour: why do cooperative breeders lay small clutches?
Cooperatively breeding birds tend to exhibit high adult survival and relatively small clutch sizes. According to the life-history hypothesis for cooperative breeding, high survival creates conditions for philopatry based on difficulties that dispersers face when competing for territories in a landscape with slow territory turnover. However, this hypothesis evokes a puzzle because high fecundity...
متن کاملDifferent Responses to Reward Comparisons by Three Primate Species
BACKGROUND Recently, much attention has been paid to the role of cooperative breeding in the evolution of behavior. In many measures, cooperative breeders are more prosocial than non-cooperatively breeding species, including being more likely to actively share food. This is hypothesized to be due to selective pressures specific to the interdependency characteristic of cooperatively breeding spe...
متن کاملExperimental evidence for kin-biased helping in a cooperatively breeding vertebrate.
The widespread belief that kin selection is necessary for the evolution of cooperative breeding in vertebrates has recently been questioned. These doubts have primarily arisen because of the paucity of unequivocal evidence for kin preferences in cooperative behaviour. Using the cooperative breeding system of long-tailed tits (Aegithalos caudatus) in which kin and non-kin breed within each socia...
متن کاملBateman's principle is reversed in a cooperatively breeding bird.
Bateman's principle is not only used to explain sex differences in mating behaviour, but also to determine which sex has the greater opportunity for sexual selection. It predicts that the relationship between the number of mates and the number of offspring produced should be stronger for males than for females. Yet, it is unclear whether Bateman's principle holds in cooperatively breeding syste...
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ورودعنوان ژورنال:
- Behavioural processes
دوره 76 2 شماره
صفحات -
تاریخ انتشار 2007