期刊
BIOLOGY LETTERS
卷 5, 期 2, 页码 148-151出版社
ROYAL SOC
DOI: 10.1098/rsbl.2008.0591
关键词
reproductive parasitism; egg cannibalism; Dendrobates; Ranitomeya; deposition strategies; anuran
资金
- East Carolina University Animal Care and Use Committee [AUP 202]
- Peruvian Ministry of Natural Resources [050-2006-INRENA-IFFS-DCB]
- NSF [IOB-0544010]
- National Geographic Society [7658-04]
- ECU
We report an unusual example of reproductive parasitism in amphibians. Dendrobates variabilis, an Amazonian poison frog, oviposits at the surface of the water in small pools in plants and deposits tadpoles within the pools. Tadpoles are highly cannibalistic and consume young tadpoles if they are accessible. Deposition of embryos and tadpoles in the same pool is common. Genetic analyses indicate that tadpoles are frequently unrelated to embryos in the same pool. A pool choice experiment in the field demonstrated that males carrying tadpoles prefer to place them in pools with embryos, facilitating reproductive parasitism via cannibalism.
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