NDLI: Interspecific Interactions and the Scope for Parent-Offspring Conflict: High Mite Density Temporarily Changes the Trade-Off between Offspring Size and Number in the Burying Beetle, Nicrophorus vespilloides

Content Provider	PubMed Central
Author	De, Gasperin Ornela Kilner, Rebecca M.
Editor	Rozen, Daniel E.
Copyright Year	2016
Abstract	Parents have a limited amount of resources to invest in reproduction and commonly trade-off how much they invest in offspring size (or quality) versus brood size. A negative relationship between offspring size and number has been shown in numerous taxa and it underpins evolutionary conflicts of interest between parents and their young. For example, previous work on vertebrates shows that selection favours mothers that produce more offspring, at the expense of individual offspring size, yet favours offspring that have relatively few siblings and therefore attain a greater size at independence. Here we analyse how this trade-off is temporarily affected by stochastic variation in the intensity of interspecific interactions. We examined the effect of the mite Poecilochirus carabi on the relationship between offspring size and number in the burying beetle, Nicrophorus vespilloides. We manipulated the initial number of mites in the reproductive event (by introducing either no mites, 4 mites, 10 mites, or 16 mites), and assessed the effect on the brood. We found a similar trade-off between offspring size and number in all treatments, except in the '16 mite' treatment where the correlation between offspring number and size flattened considerably. This effect arose because larvae in small broods failed to attain a high mass by dispersal. Our results show that variation in the intensity of interspecific interactions can temporarily change the strength of the trade-off between offspring size and number. In this study, high densities of mites prevented individual offspring from attaining their optimal weight, thus potentially temporarily biasing the outcome of parent-offspring conflict in favour of parents.
Related Links	http://dx.doi.org/10.1371/journal.pone.0150969
Starting Page	150969
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	3
Volume Number	11
Language	English
Publisher	Public Library of Science
Publisher Date	2016-03-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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Interspecific Interactions and the Scope for Parent-Offspring Conflict: High Mite Density Temporarily Changes the Trade-Off between Offspring Size and Number in the Burying Beetle, Nicrophorus vespilloides

Parental care masks a density-dependent shift from cooperation to competition among burying beetle larvae

Data from: No evidence for parent-offspring competition in the burying beetle Nicrophorus vespilloides (Dataset)

Interspecific interactions change the outcome of sexual conflict over prehatching parental investment in the burying beetle Nicrophorus vespilloides

Data from: Resource availability, but not polyandry, influences sibling conflict in a burying beetle Nicrophorus vespilloides (Dataset)

Data from: Differential effects of offspring and maternal inbreeding on egg laying and offspring performance in the burying beetle Nicrophorus vespilloides (Dataset)

Data from: No evidence of sibling cooperation in the absence of parental care in Nicrophorus vespilloides (Dataset)

Current brood size and residual reproductive value predict offspring desertion in the burying beetle Nicrophorus vespilloides

Data from: Asynchronous hatching in the burying beetle, Nicrophorus quadripunctatus, maxmises parental fitness (Dataset)

Interspecific Interactions and the Scope for Parent-Offspring Conflict: High Mite Density Temporarily Changes the Trade-Off between Offspring Size and Number in the Burying Beetle, Nicrophorus vespilloides

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Interspecific Interactions and the Scope for Parent-Offspring Conflict: High Mite Density Temporarily Changes the Trade-Off between Offspring Size and Number in the Burying Beetle, Nicrophorus vespilloides

Parental care masks a density-dependent shift from cooperation to competition among burying beetle larvae

Data from: No evidence for parent-offspring competition in the burying beetle Nicrophorus vespilloides (Dataset)

Interspecific interactions change the outcome of sexual conflict over prehatching parental investment in the burying beetle Nicrophorus vespilloides

Data from: Resource availability, but not polyandry, influences sibling conflict in a burying beetle Nicrophorus vespilloides (Dataset)

Data from: Differential effects of offspring and maternal inbreeding on egg laying and offspring performance in the burying beetle Nicrophorus vespilloides (Dataset)

Data from: No evidence of sibling cooperation in the absence of parental care in Nicrophorus vespilloides (Dataset)

Current brood size and residual reproductive value predict offspring desertion in the burying beetle Nicrophorus vespilloides

Data from: Asynchronous hatching in the burying beetle, Nicrophorus quadripunctatus, maxmises parental fitness (Dataset)

Interspecific Interactions and the Scope for Parent-Offspring Conflict: High Mite Density Temporarily Changes the Trade-Off between Offspring Size and Number in the Burying Beetle, Nicrophorus vespilloides