Recent biological invasion shapes species recognition and aggressive behavior in a native species: a behavioral experiment using robots in the field,Journal of Animal Ecology

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Recent biological invasion shapes species recognition and aggressive behavior in a native species: a behavioral experiment using robots in the field
Journal of Animal Ecology ( IF 3.5 ) Pub Date : 2020-04-11 , DOI: 10.1111/1365-2656.13223
Claire M S Dufour ₁ , David L Clark ₂ , Anthony Herrel ₃ , Jonathan B Losos ₄

Affiliation

Invasive species are a worldwide threat to biodiversity. Yet, our understanding of biological invasions remains incomplete, partly due to the difficulty of tracking and studying behavioral interactions in recently created species interactions. We tested whether the interactions between the recently introduced invasive lizard Anolis cristatellus and the native Anolis oculatus in Dominica have led to changes in species recognition and aggressive behavior of the native species. The use of realistic robots allowed us to test the behavioral response of 131 A. oculatus males towards relevant and controlled conspecific vs. heterospecific stimuli, directly in the field and in two contexts (allopatry vs. sympatry). Our results show that species recognition evolved prior to sympatry in A. oculatus. Moreover, interspecific competition resulted in an increase in the time spent displaying and a divergence in the aggressive behavior of the native species toward conspecifics vs. heterospecifics. Inherent species recognition and higher aggressive behavior may limit species coexistence as they are expected to favor A. oculatus during territorial interactions with A. cristatellus. While more studies are needed to understand the causes of these behavioral shifts and their consequences on long-term species coexistence, the present study highlights the role of behavior as a first response to interspecific interactions.

中文翻译：

最近的生物入侵塑造了本地物种的物种识别和攻击行为：在野外使用机器人的行为实验

入侵物种是对生物多样性的全球威胁。然而，我们对生物入侵的理解仍然不完整，部分原因是在最近创建的物种相互作用中难以跟踪和研究行为相互作用。我们测试了最近引入的入侵蜥蜴 Anolis cristatellus 与多米尼加的本地 Anolis oculatus 之间的相互作用是否导致本地物种的物种识别和攻击行为发生变化。使用逼真的机器人使我们能够直接在现场和两种情况下（异种与同种）测试 131 只 A. oculatus 雄性对相关和受控的同种刺激与异种刺激的行为反应。我们的结果表明物种识别在 A. oculatus 中的 sympatry 之前进化。而且，种间竞争导致展示时间的增加和本地物种对同种与异种的攻击行为的分歧。固有的物种识别和更高的攻击性行为可能会限制物种共存，因为在与 A. cristatellus 的领土相互作用期间，预计它们将有利于 A. oculatus。虽然需要更多的研究来了解这些行为转变的原因及其对长期物种共存的影响，但本研究强调了行为作为对种间相互作用的第一反应的作用。固有的物种识别和更高的攻击性行为可能会限制物种共存，因为在与 A. cristatellus 的领土相互作用期间，预计它们将有利于 A. oculatus。虽然需要更多的研究来了解这些行为转变的原因及其对长期物种共存的影响，但本研究强调了行为作为对种间相互作用的第一反应的作用。固有的物种识别和更高的攻击性行为可能会限制物种共存，因为在与 A. cristatellus 的领土相互作用期间，预计它们将有利于 A. oculatus。虽然需要更多的研究来了解这些行为转变的原因及其对长期物种共存的影响，但本研究强调了行为作为对种间相互作用的第一反应的作用。

更新日期：2020-04-11

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