• Publications
  • Influence
Evolutionary routes to non-kin cooperative breeding in birds
  • C. Riehl
  • Biology, Medicine
  • Proceedings of the Royal Society B: Biological…
  • 7 December 2013
Cooperatively breeding animals live in social groups in which some individuals help to raise the offspring of others, often at the expense of their own reproduction. Kin selection—when individualsExpand
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Correlated pay-offs are key to cooperation
The general belief that cooperation and altruism in social groups result primarily from kin selection has recently been challenged, not least because results from cooperatively breeding insects andExpand
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Cheating and punishment in cooperative animal societies
Cheaters—genotypes that gain a selective advantage by taking the benefits of the social contributions of others while avoiding the costs of cooperating—are thought to pose a major threat to theExpand
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Paternal Investment and the “Sexually Selected Hypothesis” for the Evolution of Eggshell Coloration: Revisiting the Assumptions
— 175 — The Auk, Vol. , Number , pages  . ISSN -, electronic ISSN -.  by The American Ornithologists’ Union. All rights reserved. Please direct all requests forExpand
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Natural History and Reproductive Biology of the Communally Breeding Greater Ani (Crotophaga major) at Gatún Lake, Panama
Abstract The Greater Ani (Crotophaga major) is the least well-known of the communally breeding crotophagine cuckoos, although it is locally abundant in Panama and northern South America. We presentExpand
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Egg ejection risk and hatching asynchrony predict egg mass in a communally breeding cuckoo, the Greater Ani (Crotophaga major)
The Greater Ani (Crotophaga major) is a neotropical cuckoo in which several females lay eggs in a single nest. Group members synchronize egg laying and compete for reproduction by ejecting early-laidExpand
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Living with strangers: direct benefits favour non-kin cooperation in a communally nesting bird
  • C. Riehl
  • Biology, Medicine
  • Proceedings of the Royal Society B: Biological…
  • 7 June 2011
The greater ani (Crotophaga major), a Neotropical cuckoo, exhibits an unusual breeding system in which several socially monogamous pairs lay eggs in a single nest and contribute care to the communalExpand
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A Simple Rule Reduces Costs of Extragroup Parasitism in a Communally Breeding Bird
  • C. Riehl
  • Biology, Medicine
  • Current Biology
  • 26 October 2010
How do cooperatively breeding groups resist invasion by parasitic "cheaters," which dump their eggs in the communal nest but provide no parental care [1,2]? Here I show that Greater Anis (CrotophagaExpand
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Mating system and reproductive skew in a communally breeding cuckoo: hard-working males do not sire more young
  • C. Riehl
  • Biology
  • Animal Behaviour
  • 1 September 2012
In communally breeding animal societies, theory predicts that a male's investment in parental care should be correlated with his share of paternity in the mixed brood. Here I test this hypothesis inExpand
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Kinship and Incest Avoidance Drive Patterns of Reproductive Skew in Cooperatively Breeding Birds
  • C. Riehl
  • Biology, Medicine
  • The American Naturalist
  • 2 November 2017
Social animals vary in how reproduction is divided among group members, ranging from monopolization by a dominant pair (high skew) to equal sharing by cobreeders (low skew). Despite many theoreticalExpand
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