Alternative tactics and individual reproductive success in natural associations of the burying beetle, Nicrophorus vespilloides
نویسندگان
چکیده
Josef K. Müller, Veronika Braunisch, Wenbe Hwang, and Anne-Katrin Eggert Zoologisches Institut der Albert-Ludwigs-Universität Freiburg, Hauptstrasse 1, D-79104 Freiburg, Germany Forest Research Institute of Baden-Württemberg, Department of Landscape Ecology/ Wildlife Ecology, Wonnhaldestrasse 4, D-79100 Freiburg, Germany, and Behavior, Ecology, Evolution, and Systematics (BEES) Section, Department of Biological Sciences, Illinois State University, Normal, IL 61790-4120, USA
منابع مشابه
Sperm competition, alternative mating tactics and context-dependent fertilization success in the burying beetle, Nicrophorus vespilloides.
Fertilization success in sperm competition is often determined by laboratory estimates of the proportion of offspring sired by the first (P1) or second (P2) male that mates. However, inferences from such data about how sexual selection acts on male traits in nature may be misleading if fertilization success depends on the biological context in which it is measured. We used the sterile male tech...
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Phenotypic plasticity is important in the evolution of traits and facilitates adaptation to rapid environmental changes. However, variation in plasticity at the individual level, and the heritable basis underlying this plasticity is rarely quantified for behavioral traits. Alternative behavioral reproductive tactics are key components of mating systems but are not often considered within a phen...
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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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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...
متن کاملEffects of age and experience on contest behavior in the burying beetle, Nicrophorus vespilloides
Contest behavior forms an important part of reproductive investment. Life-history theory predicts that as individuals age and their residual reproductive value decreases, they should increase investment in contest behavior. However, other factors such as social experience may also be important in determining age-related variation in contest behavior. To understand how selection acts on contest ...
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تاریخ انتشار 2006