首页|Sex-specific offspring discrimination reflects respective risks and costs of misdirected care in a poison frog

Sex-specific offspring discrimination reflects respective risks and costs of misdirected care in a poison frog

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  • NSTL
  • Elsevier
The ability to differentiate between one's own and foreign offspring ensures the exclusive allocation of costly parental care to only related progeny. The selective pressure to evolve offspring discrimination strategies is largely shaped by the likelihood and costs of offspring confusion. We hypothesize that males and females with different reproductive and spatial behaviours face different risks of confusing their own with others' offspring, and this should favour differential offspring discrimination strategies in the two sexes. In the brilliant-thighed poison frog, Allobates femoralis, males and females are highly polygamous, terrestrial clutches are laid in male territories and females abandon the clutch after oviposition. We investigated whether males and females differentiate between their own offspring and unrelated young, whether they use direct or indirect cues and whether the concurrent presence of their own clutch is essential to elicit parental behaviours. Males transported tadpoles regardless of location or parentage, but to a lesser extent in the absence of their own clutch. Females discriminated between clutches based on exact location and transported tadpoles only in the presence of their own clutch. This sex-specific selectivity of males and females during parental care reflects the differences in their respective costs of offspring confusion, resulting from differences in their spatial and reproductive behaviours. (C) 2016 The Authors. Published on behalf of The Association for the Study of Animal Behaviour by Elsevier Ltd.

amphibiansoffspring discriminationparental caresex differencestadpole transport

Ringler, Eva、Pasukonis, Andrius、Ringler, Max、Huber, Ludwig

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Med Univ Vienna, Univ Vet Med Vienna, Messerli Res Inst, Vet Pl 1, A-1210 Vienna, Austria|Univ Vienna, Vet Pl 1, A-1210 Vienna, Austria|Univ Vienna, Dept Integrat Zool, A-1210 Vienna, Austria

Univ Vienna, Dept Cognit Biol, A-1210 Vienna, Austria

Univ Vienna, Dept Integrat Zool, A-1210 Vienna, Austria

Med Univ Vienna, Univ Vet Med Vienna, Messerli Res Inst, Vet Pl 1, A-1210 Vienna, Austria|Univ Vienna, Vet Pl 1, A-1210 Vienna, Austria

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2016

10.1016/j.anbehav.2016.02.008

Animal behaviour

Animal behaviour

SCI
ISSN：0003-3472
年,卷(期)：2016.114
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