Size-selective predation of sailfin mollies by two species of heron

作者: Joel C. Trexler , Robert C. Tempe , Joseph Travis

DOI: 10.2307/3546145

关键词: PoeciliidaePredationSize selectiveSex ratioHeronEgretBody sizePlant coverEcologyBiology

摘要: Two species of herons (Aves: Ardeidae), the great egret and the snowy egret, fed preferentially on relatively large individual sailfin mollies (Pisces: Poeciliidae). The level of selectivity …

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