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首页> 外文期刊>Ethology >Calling activity determines male mating success in a territorial frog with parental care
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Calling activity determines male mating success in a territorial frog with parental care

机译：呼叫活动决定了父母护理的领土青蛙中的男性交配成功

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摘要

A contentious aspect in dendrobatoid frog behaviour is the recognition of the predominant factor-if any-driving male mating success. This is probably related to an extensive correlation among different male quality predictors. Here, we investigated the diurnal and territorial nurse frog Allobates subfolionidificans by means of a field study during one entire breeding season in Brazilian Amazonia. We tested the roles of two intrinsic male properties (body size and calling activity) and five territory-related variables (territory size, vegetation cover, nesting site, perch height and food availability) on male reproductive output. A multiple regression analysis revealed calling activity as the only variable predicting male mating success in A. subfolionidificans. Vocalisation probably represents the most energetically expensive activity that a male frog undertakes during his lifetime, thus calling activity may be used by A. subfolionidificans females as a cue to mate choice that indicates competitive potential and male quality. Alternatively, non-choosy females also should be more likely to encounter and mate with males that advertise more often throughout the breeding season.
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