Increased susceptibility to predation for autotomized house crickets (Acheta domestica)
Increased susceptibility to predation for autotomized house crickets (Acheta domestica)
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自动化家蟋蟀（Acheta Domestica）被捕食的可能性增加
DOI：
10.1111/j.1439-0310.2006.01218.x
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发表时间：
2006
期刊：
影响因子：
1.7
通讯作者：
P. Fleming
中科院分区：
文献类型：
--
作者：
P. Bateman;P. Fleming
当受到攻击时，蟋蟀可能会脱落或“自动切断”一条被困住的肢体，以逃避潜在的捕食者。我们研究了四肢自断，运行速度和易感性的未来捕食的家蟋蟀（Acheta arctica）之间的关系。后肢自切断导致逃跑速度和跳跃能力的显着降低，在逃跑过程中，更大的捕食蜥蜴（条纹石龙子Mabuya striata punctatissima）和小鼠（袋形小鼠Saccostomus campestris）。虽然肢体自切可能使一个家蟋蟀逃脱捕食性遭遇，自切甚至一个后肢的结果直接成本，以逃避速度在蟋蟀，使动物更容易受到随后的捕食者遭遇。
When attacked, crickets may shed or 'autotomize' an entrapped limb in order to escape a would-be predator. We examined the relationship between limb autotomy, running speed and susceptibility to future predation in house crickets (Acheta domestica). Hind limb autotomy resulted in a significant reduction in escape speed and ability to jump during the escape run, and greater predation by both lizards (striped skink Mabuya striata punctatissima) and mice (pouched mouse Saccostomus campestris). Although limb autotomy may enable a house cricket to escape a predatory encounter, autotomy of even one hind limb results in immediate costs to escape speed in crickets and makes the animal more vulnerable to subsequent predator encounters.