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Variation in Advertisement Calls and Male Mating Success of Scaphiopus bombifrons, S. couchi and S. multiplicatus (Pelobatidae)
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Variation in Advertisement Calls and Male Mating Success of Scaphiopus bombifrons, S. couchi and S. multiplicatus (Pelobatidae)

著者: Brian K Sullivan; Elizabeth A Sullivan
版本/格式: 文章 文章 : 英语
刊登在:The Southwestern Naturalist, Aug. 28, 1985, vol. 30, no. 3, p. 349-355
数据库:JSTOR
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文件类型: 文章
所有的著者/提供者: Brian K Sullivan; Elizabeth A Sullivan
ISSN:0038-4909
OCLC号码: 482254331
语言注释: English
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摘要:

We studied breeding behavior and size-related variation in advertisement calls of the Plains (Scaphiopus bombifrons), Couch's (S. couchi) and New Mexico (S. multiplicatus) spadefoot toads in southern Arizona during July and August, 1980-83. No call variables (frequency, pulse rate or duration) were correlated with male snout-vent length in S. bombifrons or S. couchi. However, dominant frequency was significantly correlated (negatively) with male size in S. multiplicatus. Males in amplexus were not significantly larger than non-mating males in three of three S. couchi or three of three S. multiplicatus breeding aggregations. Non-calling, actively searching males were observed in aggregations of S. couchi and S. multiplicatus, and in S. multiplicatus actively searching males were significantly smaller than calling males.

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