Damage, digestion, and defence: the roles of alarm cues and kairomones for inducing prey defences
Damage, digestion, and defence: the roles of alarm cues and kairomones for inducing prey defences
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DOI：
10.1111/j.1461-0248.2005.00744.x
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发表时间：
2005-05-01
期刊：
影响因子：
8.8
通讯作者：
Relyea, RA
中科院分区：
文献类型：
--
作者：
Schoeppner, NM;Relyea, RA
诱导防御广泛用于研究表型可塑性，但我们通常对诱导这些防御的线索知之甚少。对于水生猎物，防御是由捕食者（利它素）和受伤猎物（警报线索）的化学信号诱导的。很少有人确定这些线索的单独和综合影响，特别是在系统发育上不同的猎物类型之间。我们研究了当 10 种不同的猎物被用手压碎或被捕食者吃掉时，蝌蚪 (Hyla versicolor) 如何改变其防御能力。在所有猎物类型中，碾压仅引起消耗引起的防御的一部分。食用与压碎会产生行为的加性反应，但会产生形态和生长的协同反应。此外，我们发现了第一个广泛的证据，表明猎物对不同警报线索的反应取决于猎物的系统发育。这些结果表明，猎物可获得的信息量会影响防御表型的数量和质量。
Inducible defences are widely used for studying phenotypic plasticity, yet frequently we know little about the cues that induce these defences. For aquatic prey, defences are induced by chemical cues from predators (kairomones) and injured prey (alarm cues). Rarely has anyone determined the separate and combined effects of these cues, particularly across phylogenetically diverse prey types. We examined how tadpoles (Hyla versicolor) altered their defences when 10 different prey were either crushed by hand or consumed by predators. Across all prey types, crushing induced only a subset of the defences induced by consumption. Consuming vs. crushing produced additive responses for behaviour but synergistic responses for morphology and growth. Moreover, we discovered the first extensive evidence that prey responses to different alarm cues depends on prey phylogeny. These results suggest that the amount of information available to the prey affects both the quantitative and qualitative nature of the defended phenotype.