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148 results for “burying beetle”
No evidence for increased fitness of offspring from multigenerational effects of parental size or natal carcass size in the burying beetle Nicrophorus marginatus
<p>Multigenerational effects (often called maternal effects) are components of the offspring phenotype that result from the parental phenotype and the parental environment as opposed to heritable genetic effects. Multigenerational effects are widespread in nature and are often studied because of their potentially important effects on offspring traits. Although multigenerational effects are commonly observed, few studies have addressed whether they affect offspring fitness. In this study we assess the effect of potential multigenerational effects of parental body size and natal carcass size on lifetime fitness in the burying beetle, <i>Nicrophorus marginatus</i> (Coleoptera; Silphidae). Lifespan, total number of offspring, and number of offspring in the first reproductive bout were not significantly related to parental body size or natal carcass size. However, current carcass size used for reproduction was a significant predictor for lifetime number of offspring and number of offspring in the first brood. We find no evidence that multigenerational effects from larger parents or larger natal carcasses contribute to increased fitness of offspring.</p>
Data for: Larval environmental conditions influence plasticity in resource use by adults in the burying beetle, Nicrophorus vespilloides
<p><span><span><span><span><span><span><span><span><span><span><span>Recent studies have shown that intraspecific patterns of phenotypic plasticity can mirror patterns of evolutionary diversification among species. This appears to be the case in <i>Nicrophorus </i>beetles. Within species, body size is positively correlated with the size of carrion used to provision larvae and parental performance. Likewise, among species, variation in body size influences whether species exploit smaller or larger carrion and the extent to which larvae depend on parental care. However, it is unclear whether developmental plasticity in response to carcass size, parental care, or both underlie transitions to new carcass niches. We examined this by testing whether variation in the conditions experienced by <i>N. vespilloides </i>larvae influenced their ability to breed efficiently upon differently sized carcasses as adults. We found that the conditions experienced by larvae during development played a critical role in determining their ability to use large carcasses effectively as adults. Specifically, individuals that developed with parental care and on large carcasses were best able to convert the resources on a large carcass into offspring when breeding themselves. Our results suggest that parentally-induced plasticity can be important in the initial stages of niche expansion.</span></span></span></span></span></span></span></span></span></span></span></p> <p> </p>
Data from: Offspring beg more towards larger females in a burying beetle
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No evidence for increased fitness of offspring from multigenerational effects of parental size or natal carcass size in the burying beetle Nicrophorus marginatus
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Data from: Residency time as an indicator of reproductive restraint in male burying beetles
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Data from: Parental care and sibling competition independently increase phenotypic variation among burying beetle siblings
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Data from: Parental responses to increasing levels of handicapping in a burying beetle
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Data from: A limit on the extent to which increased egg size can compensate for a poor postnatal environment revealed experimentally in the burying beetle, Nicrophorus vespilloides
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Data from: Interplay between age-based competitive asymmetries within the brood and direct competition between inbred and outbred offspring in a burying beetle
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Data from: Inbred burying beetles suffer fitness costs from making poor decisions
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Data from: Variation in mandible development and its relationship to dependence on parents across burying beetles
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Data from: A gene associated with social immunity in the burying beetle Nicrophorus vespilloides
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Data from: Aposematism in the burying beetle? Dual function of anal fluid in parental care and chemical defense
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Data from: Nutrition during sexual maturation affects competitive ability but not reproductive productivity in burying beetles
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Data from: Effects of variation in resource acquisition during different stages of the life cycle on life-history traits and trade-offs in a burying beetle
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Data from: The role of indirect genetic effects in the evolution of interacting reproductive behaviors in the burying beetle, Nicrophorus vespilloides
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Data from: The smell of parents: breeding status influences cuticular hydrocarbon pattern in the burying beetle Nicrophorus vespilloides
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Data from: Effects of inbreeding on behavioural plasticity of parent-offspring interactions in a burying beetle
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Data from: Why does it take two to tango? lifetime fitness consequences of parental care in a burying beetle
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Data from: Differential effects of offspring and maternal inbreeding on egg laying and offspring performance in the burying beetle Nicrophorus vespilloides
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