Alejandro G. Farji-Brener, Moisés Enríquez, Diego Rosey, Paulina Arroyo-Gerala, Víctor Arroyo-Rodríguez
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引用次数: 0
摘要
对于表现出多种反捕食策略的猎物来说,选择最有效的策略对其生存至关重要。然而,是什么决定了这种选择仍然是一个悬而未决的问题。我们假设这种选择取决于猎物的技能。我们在Myrmeleon immaculatus De Geer, 1773(神经目:Myrmeleontidae)蚁后幼虫身上验证了这一观点,它们表现出两种可供选择的反捕食行为:接触后不动(PCI)和掩埋。由于幼虫生活在沙质土壤中,PCI 只是一种临时策略,最终所有幼虫都会钻入土中。然而,决定在埋藏前保持不动多长时间可能取决于幼虫埋藏自身的速度(即个体在基质中伪装自身的速度)。在墨西哥尤卡坦半岛的热带森林中,我们测量了 45 只幼虫在细粒度实验基质中的 PCI 持续时间、埋藏时间和体型。我们还测量了下颚长度,以评估它们对掩埋技能的影响。埋藏时间较短的幼虫的PCI持续时间一直较短,而埋藏时间较长的幼虫的PCI持续时间较长,且变化较大。这种影响与幼虫的体型无关。下颚长度不影响掩埋时间。我们的研究结果表明,当特定的猎物在两种相互排斥的反捕食者策略之间进行选择时,执行最相关策略的内在技能(在本例中,掩埋自己的速度)可能会调节另一种策略(在本例中,PCI)的持续时间。这加强了捕食作为一种调节猎物行为的选择性力量的作用。
What determines the antipredator strategy in antlion larvae? Burrowing ability decreases the duration of post-contact immobility
¿Qué determina la estrategia anti depredadora en larvas del león de las hormigas? La capacidad de enterramiento disminuye la duración de la inmovilidad post-contacto
期刊介绍:
Ecological Entomology publishes top-quality original research on the ecology of insects and related invertebrate taxa. Our aim is to publish papers that will be of considerable interest to the wide community of ecologists who are motivated by ecological or evolutionary theory. The suitability of a manuscript will usually be assessed within 5 days.
We publish full-length Original Articles as well as Reviews, Short Communications, Methods and Natural History papers. In Original Articles, we greatly prefer papers that test specific hypotheses and which have a high degree of novelty. All categories aim for innovative contributions that advance the subject of ecological entomology.