A test of the light attraction hypothesis in camel spiders of the Mojave Desert (Arachnida: Solifugae)
A test of the light attraction hypothesis in camel spiders of the Mojave Desert (Arachnida: Solifugae)
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DOI：
10.1636/joa-s-18-077
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发表时间：
2019-09-01
影响因子：
1
通讯作者：
Cushing, Paula E.
中科院分区：
文献类型：
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作者：
Graham, Matthew R.;Pinto, Michelins B.;Cushing, Paula E.
通常被称为骆驼蜘蛛的Solifugae目的研究进展，一直受到收集这些快速移动的夜间捕食者固有挑战的阻碍。最近，陷阱诱捕和人工光诱相结合显示出提高捕获率的希望，但骆驼蜘蛛被光捕集(正趋光性)吸引的假设从未得到检验。我们在莫哈韦沙漠构建了有光和无光的短陷阱陷阱阵列，以检验光吸引假说。我们收集的几乎所有骆驼蜘蛛都是在悬挂灯光的陷阱中发现的，这为积极趋光性提供了强有力的支持。诱捕器阵列内与灯光的距离似乎与单个陷阱诱捕器的成功无关。令人兴奋的是，我们的短陷阱灯阵列，或称卡特彼勒灯陷阱，相对容易安装，每工作小时产生的骆驼蜘蛛比以前报道的技术多一个数量级。
Research progress on the order Solifugae, commonly known as camel spiders, has been hindered by challenges inherent in collecting these fast-moving, nocturnal predators. Recently, pitfall trapping combined with artificial light lures showed promise for improving capture rates, but the hypothesis that camel spiders are attracted to light traps (positive phototaxis) has never been tested. We constructed short pitfall trap arrays with and without lights across the Mojave Desert to test the light attraction hypothesis. Nearly all camel spiders we collected were found in traps with suspended lights, lending strong support for positive phototaxis. Distance from the lights within trap arrays does not appear to be correlated with the success of individual pitfall traps. Excitingly, our short pitfall light arrays, or Caterpillar light traps, were relatively easy to install and yielded an order of magnitude more camel spiders per effort hour than previously reported techniques.