Colour and motion affect a dune wasp's ability to detect its cryptic spider predators.
Colour and motion affect a dune wasp's ability to detect its cryptic spider predators.
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DOI：
10.1038/s41598-021-94926-7
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发表时间：
2021-07-29
影响因子：
4.6
通讯作者：
Rao D
中科院分区：
文献类型：
--
作者：
Rodríguez-Morales D;Tapia-McClung H;Robledo-Ospina LE;Rao D
伏击掠食者依靠神秘的体色、静止和合适的狩猎地点来优化捕获猎物的概率。寻花黄蜂对隐秘捕食者（例如蟹蛛）的检测也可能受到风引起的花朵本身运动的阻碍。在海滩沙丘栖息地，接近 Palafoxia lindenii 植物花头的 Microbembex nigrifrons 黄蜂需要评估花朵以避免蜘蛛攻击。黄蜂可以通过颜色和运动线索来检测蜘蛛。我们跟踪了沙丘黄蜂在两种运动条件下接近占据和未占据的花朵时的飞行轨迹；当花朵静止或移动时。我们使用心理物理视觉建模技术模拟了蜘蛛和花朵的外观，并将其与黄蜂降落或避开花朵的决定联系起来。黄蜂只能在非常近的范围内辨别蜘蛛，这反映在它们的轨迹形状上。当花朵移动时，黄蜂更容易在威胁评估中犯错误。我们的研究结果表明，风等非生物条件会增加沙丘黄蜂的捕食风险，并损害其早期检测能力。
Ambush predators depend on cryptic body colouration, stillness and a suitable hunting location to optimise the probability of prey capture. Detection of cryptic predators, such as crab spiders, by flower seeking wasps may also be hindered by wind induced movement of the flowers themselves. In a beach dune habitat, Microbembex nigrifrons wasps approaching flowerheads of the Palafoxia lindenii plant need to evaluate the flowers to avoid spider attack. Wasps may detect spiders through colour and movement cues. We tracked the flight trajectories of dune wasps as they approached occupied and unoccupied flowers under two movement conditions; when the flowers were still or moving. We simulated the appearance of the spider and the flower using psychophysical visual modelling techniques and related it to the decisions made by the wasp to land or avoid the flower. Wasps could discriminate spiders only at a very close range, and this was reflected in the shape of their trajectories. Wasps were more prone to making errors in threat assessment when the flowers are moving. Our results suggest that dune wasp predation risk is augmented by abiotic conditions such as wind and compromises their early detection capabilities.
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影响因子：
2.5
作者：
Hennessy, Georgia;Harris, Ciaran;Ratnieks, Francis F. L. W.
通讯作者：
Ratnieks, Francis F. L. W.
影响因子：
2.7
作者：
Keogh, E;Ratanamahatana, CA
通讯作者：
Ratanamahatana, CA
DOI：
10.1098/rspb.2009.1632
发表时间：
2010-03-07
影响因子：
4.7
作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
Zeil, J
影响因子：
4.2
作者：
Fu, Ada Wai-Chee;Keogh, Eamonn;Wong, Raymond Chi-Wing
通讯作者：
Wong, Raymond Chi-Wing