Dataset

Data from: Joint care can outweigh costs of nonkin competition in communal breeders

Bebbington, K. (Creator), Fairfield, E. A. (Creator), Spurgin, L. (Creator), Kingma, S. A. (Creator), Dugdale, H. (Creator), Komdeur, J. (Creator) & Richardson, D. (Creator), University of Groningen, 20-Sep-2017

Dataset

  • Kat Bebbington (Creator)
  • Eleanor A Fairfield (Creator)
  • Lewis Spurgin School of Biological Sciences, University of East Anglia, Norwich Research Park, Norfolk, NR4 7TJ, UK (Creator)
  • Sjouke Anne Kingma (Creator)
  • Hannah Dugdale (Creator)
  • Jan Komdeur (Creator)
  • David Richardson (Creator)
  • School of Biological Sciences, University of East Anglia, Norwich Research Park, Norfolk, NR4 7TJ, UK
  • School of Biology, Faculty of Biological Sciences. University of Leeds

Description

Competition between offspring can greatly influence offspring fitness and parental investment decisions, especially in communal breeders where unrelated competitors have less incentive to concede resources. Given the potential for escalated conflict, it remains unclear what mechanisms facilitate the evolution of communal breeding among unrelated females. Resolving this question requires simultaneous consideration of offspring in noncommunal and communal nurseries, but such comparisons are missing. In the Seychelles warbler Acrocephalus sechellensis, we compare nestling pairs from communal nests (2 mothers) and noncommunal nests (1 mother) with singleton nestlings. Our results indicate that increased provisioning rate can act as a mechanism to mitigate the costs of offspring rivalry among nonkin. Increased provisioning in communal broods, as a consequence of having 2 female parents, mitigates any elevated costs of offspring rivalry among nonkin: per-capita provisioning and survival was equal in communal broods and singletons, but lower in noncommunal broods. Individual offspring costs were also more divergent in noncommunal broods, likely because resource limitation exacerbates differences in competitive ability between nestlings. It is typically assumed that offspring rivalry among nonkin will be more costly because offspring are not driven by kin selection to concede resources to their competitors. Our findings are correlational and require further corroboration, but may help explain the evolutionary maintenance of communal breeding by providing a mechanism by which communal breeders can avoid these costs.

The data package contains one dataset:
- Data for all analyses described in the manuscript. Each row represents one sampled individual.
Date made available20-Sep-2017
PublisherUniversity of Groningen
Geographical coverageRepublic of Seychelles
Access to the dataset Open
Contact researchdata@rug.nl

    Keywords on Datasets

  • relatedness, communal breeding, cooperative breeding, Seychelles warbler, competition, Offspring rivalry, Acrocephalus sechellensis
Related Publications
  1. Joint care can outweigh costs of nonkin competition in communal breeders

    Bebbington, K., Fairfield, E. A., Spurgin, L. G., Kingma, S. A., Dugdale, H., Komdeur, J. & Richardson, D., 13-Jan-2018, In : Behavioral Ecology. 29, 1, p. 169-178 10 p.

    Research output: Contribution to journalArticleAcademicpeer-review

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ID: 67480116