Effects of Spider Chemotactile Cues on Arthropod Behavior
Effects of Spider Chemotactile Cues on Arthropod Behavior
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DOI：
10.1007/s10905-014-9449-1
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发表时间：
2014-09-01
影响因子：
1
通讯作者：
Entling, Martin H.
中科院分区：
文献类型：
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作者：
Bucher, Roman;Binz, Hellena;Entling, Martin H.
捕食风险会强烈影响被捕食物种的行为。然而，蜘蛛线索驱动的行为变化的经验证据仅限于相对较少的类群。在这里，我们进行了一系列的行为实验，以测试各种陆生节肢动物之间的活动变化。我们用三种蜘蛛的化学触觉线索来对抗13种昆虫和8种蜘蛛。我们采用了两种不同的实验设置：在“无选择实验”中，猎物个体要么被放在控制滤纸上，要么被放在蜘蛛以前占据的滤纸上。在“选择实验”中，猎物个体能够在有或没有蜘蛛线索的滤纸之间进行选择。在这两种设置中，对蜘蛛线索的反应显着依赖于猎物物种，一些物种增加，其他物种减少其活动。令人惊讶的是，几乎没有猎物对蜘蛛的暗示做出反应。我们的研究结果表明，捕食者识别接触线索轴承滤纸是强烈的猎物特异性和蜘蛛趋化性线索驱动的行为效应是一个例外，而不是规则之间的陆地节肢动物。
Predation risk can strongly affect the behavior of prey species. However, empirical evidence for changes in behavior driven by spider cues is restricted to relatively few taxa. Here, we conducted a series of behavioral experiments to test for changes in activity among a wide range of terrestrial arthropods. We confronted 13 insect and eight spider species with chemotactile cues of three spider species. We applied two different experimental setups: In the 'no-choice experiment' prey individuals were either put on control filter papers or on filter papers previously occupied by a spider. In the 'choice experiment', the prey individuals were able to choose between filter paper halves with and without spider cues. In both setups, the response to spider cues depended significantly on prey species, with some species increasing and others decreasing their activity. Surprisingly few prey species responded to the spider cues at all. Our results indicate that predator recognition upon contact with cue bearing filter papers is strongly prey-specific and that behavioral effects driven by spider chemotactile cues are an exception rather than the rule among terrestrial arthropods.