Supplementary feeding affects the breeding behaviour of male European treefrogs (Hyla arborea).

BMC Ecology
Ivonne Meuche, T U Grafe

Abstract

We investigated the effects of energetic constraints on the breeding behaviour of male European treefrogs Hyla arborea and how calling males allocated additional energy supplied by feeding experiments. Presence in the chorus was energetically costly indicated by both fed and unfed males losing weight. Males that were supplied with additional energy did not show longer chorus tenure. Instead, fed males returned sooner to the chorus. Additionally, fed males called more often than control males, a novel response for anurans. A significantly higher calling rate was noted from males even 31 nights after supplementary feeding. This strategy of allocating additional energy reserves to increasing calling rate is beneficial given the preference of female hylids for males calling at high rates and a female's ability to detect small incremental increases in calling rate.

References

Aug 29, 1998·Proceedings. Biological Sciences·M L DysonL Barrett
Mar 27, 2001·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·T U Grafe, J Thein

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Citations

May 22, 2013·Frontiers in Zoology·Ivonne MeucheHeike Pröhl

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