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首页> 外文期刊>Ethology >Regulation and non-toxicity of the spit from the pale spitting spider Scytodes Pallida (Araneae: Scytodidae).
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Regulation and non-toxicity of the spit from the pale spitting spider Scytodes Pallida (Araneae: Scytodidae).

机译：苍白随地吐痰的蜘蛛Scytodes Pallida（Araneae：Scytodidae）吐出的唾液的调节作用和非毒性。

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摘要

The pale spitting spider Scytodes pallida (Aranae: Scytodidae) has a unique habit of spitting a glue-like and possibly toxic substance at its prey to render them immobile prior to envenomation. Quantitative behavioural studies involving the spit, a first for S. pallida, demonstrate that the spider regulates its spit expenditure when offered prey of variable sizes and struggling intensities. This behaviour interestingly mirrors the regulation of venom expenditure according to prey sizes and difficulties exhibited in other non-spitting spiders. The spit, however, did not appear to have any toxic effects on different prey types exposed to the spit, opposing the long-standing belief that the spit from scytodids can poison prey.
机译：苍白随地吐痰的蜘蛛Scytodes pallida（Aranae：Scytodidae）有一个独特的习惯，即在其猎物上吐出一种胶状且可能有毒的物质，使它们在被毒化之前不动。涉及吐唾液的定量行为研究，这是对S. pallida的首次发现，证明了蜘蛛在提供可变大小和挣扎强度的猎物时会调节其吐痰费用。有趣的是，这种行为根据猎物的大小和其他不随地吐痰的蜘蛛表现出的困难来反映毒液消耗的调节。然而，该吐痰似乎对暴露于该吐痰的不同猎物没有任何毒性作用，这与长期以来认为由有毒小动物的吐痰会毒化猎物相反。

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