Offspring size-number strategy in the bethylid parasitoid Laelius pedatus
نویسندگان
چکیده
منابع مشابه
Encountering competitors reduces clutch size and increases offspring size in a parasitoid with female–female fighting
Understanding the size of clutches produced by only one parent may require a game-theoretic approach: clutch size may affect offspring fitness in terms of future competitive ability. If larger clutches generate smaller offspring and larger adults are more successful in acquiring and retaining resources, clutch size optima should be reduced when the probability of future competitive encounters i...
متن کاملNonsiblicidal behavior and the evolution of clutch size in bethylid wasps.
Parent-offspring conflict over clutch size may lead to siblicidal behavior between juveniles. In parasitoid wasps, selection for siblicide in small broods is predicted to produce a dearth of gregarious broods with few eggs. Here we document the clutch size distribution in the Bethylidae, a large family of aculeate parasitoids. Small gregarious clutches are the most common. Further data suggest ...
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BACKGROUND Studies of lizards have shown that offspring size cannot be altered by manipulating clutch size in species with a high clutch frequency. This raises a question of whether clutch frequency has a key role in influencing the offspring size-number trade-off in lizards. METHODOLOGY/PRINCIPAL FINDINGS To test the hypothesis that females reproducing more frequently are less likely to trad...
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The number of offspring attaining reproductive age is an important measure of an individual's fitness. However, reproductive success is generally constrained by a trade-off between offspring number and quality. We conducted a factorial experiment in order to study the effects of an artificial enlargement of offspring number and size on the reproductive success of female bank voles (Clethrionomy...
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Life-history theory posits a fundamental trade-off between number and size of offspring that structures the variability in parental investment across and within species. We investigate this 'quantity-quality' trade-off across primates and present evidence that a similar trade-off is also found across natural-fertility human societies. Restating the classic Smith-Fretwell model in terms of allom...
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 1998
ISSN: 1045-2249,1465-7279
DOI: 10.1093/beheco/9.1.54