2024-03-29T10:48:54Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/301912022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Reciprocal phenotypic plasticity in a predator-prey interaction between larval amphibiansKishida, OsamuMizuta, YuukiNishimura, Kinyaarms racebulgy phenotypecoevolutionHynobius retardatusinducible defenseinducible offensepredator-induced plasticityRana pirica468.8In biological interactions, phenotypic change in interacting organisms induced by their interaction partners causes a substantial shift in some environmental factor of the partners, which may subsequently change their phenotype in response to that modified environmental factor. Few examples of such arms-race-like plastic responses, known as reciprocal phenotypic plasticity, have been identified in predator–prey interactions. We experimentally identified a reciprocal defensive plastic response of a prey species against a predator with a predaceous phenotype using a model system of close predator–prey interaction. Rana pirica tadpoles (the prey species) were reared with larvae of the salamander Hynobius retardatus (the predator species) having either a predaceous or a typical, nonpredaceous phenotype. The H. retardatus larvae with the predaceous phenotype, which is known to be induced by the presence of R. pirica tadpoles, induced a more defensive phenotype in the tadpoles than did larvae with the typical phenotype. The result suggests that the reciprocal phenotypic plasticity of R. pirica tadpoles is in response to a phenotype-specific signal under a close-signal recognition process.Ecological Society of AmericaJournal Articleapplication/pdfhttp://hdl.handle.net/2115/30191https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/30191/1/ECOL87-6.pdf0012-9658Ecology876159916042006-06enginfo:pmid/16869435info:doi/10.1890/0012-9658(2006)87[1599:RPPIAP]2.0.CO;2publisher