Egg size, begging behaviour and offspring fitness in Nicrophorus vespilloides
نویسندگان
چکیده
منابع مشابه
Octopaminergic gene expression and flexible social behaviour in the subsocial burying beetle Nicrophorus vespilloides
Flexible behaviour allows organisms to respond appropriately to changing environmental and social conditions. In the subsocial beetle Nicrophorus vespilloides, females tolerate conspecifics when mating, become aggressive when defending resources, and return to social tolerance when transitioning to parenting. Given the association between octopamine and aggression in insects, we hypothesized th...
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Parents play a key role in determining the phenotype of their offspring. However, relatively few studies have investigated whether parents can change their offspring's behaviour in a sustained way that persists into adulthood. With experiments on the burying beetle, Nicrophorus vespilloides, we investigated how the developmental environment created by parents affects their offspring's wing morp...
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It is often assumed that there is a positive relationship between egg size and offspring fitness. However, recent studies have suggested that egg size has a greater effect on offspring fitness in low-quality environments than in high-quality environments. Such observations suggest that mothers may compensate for poor posthatching environments by increasing egg size. In this paper we test whethe...
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Male parents face a choice: should they invest more in caring for offspring or in attempting to mate with other females? The most profitable course depends on the intensity of competition for mates, which is likely to vary with the population sex ratio. However, the balance of pay-offs may vary among individual males depending on their competitive prowess or attractiveness. We tested the predic...
متن کاملParent-offspring conflict and selection on egg size in turtles.
The trade-off between offspring size and number can present a conflict between parents and their offspring. Because egg size is constrained by clutch size, the optimal egg size for offspring fitness may not always be equivalent to that which maximizes parental fitness. We evaluated selection on egg size in three turtle species (Apalone mutica, Chelydra serpentina and Chrysemys picta) to determi...
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ژورنال
عنوان ژورنال: Animal Behaviour
سال: 2017
ISSN: 0003-3472
DOI: 10.1016/j.anbehav.2017.10.014