Deep-time convergent evolution in animal communication presented by shared adaptations for coping with noise in lizards and other animals,Ecology Letters

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Deep-time convergent evolution in animal communication presented by shared adaptations for coping with noise in lizards and other animals
Ecology Letters ( IF 7.6 ) Pub Date : 2021-06-30 , DOI: 10.1111/ele.13773
Terry J Ord ₁ , Danielle A Klomp ₁ , Thomas C Summers ₁ , Arvin Diesmos ₂ , Norhayati Ahmad ₃ , Indraneil Das ₄

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Convergence in communication appears rare compared with other forms of adaptation. This is puzzling, given communication is acutely dependent on the environment and expected to converge in form when animals communicate in similar habitats. We uncover deep-time convergence in territorial communication between two groups of tropical lizards separated by over 140 million years of evolution: the Southeast Asian Draco and Caribbean Anolis. These groups have repeatedly converged in multiple aspects of display along common environmental gradients. Robot playbacks to free-ranging lizards confirmed that the most prominent convergence in display is adaptive, as it improves signal detection. We then provide evidence from a sample of the literature to further show that convergent adaptation among highly divergent animal groups is almost certainly widespread in nature. Signal evolution is therefore curbed towards the same set of adaptive solutions, especially when animals are challenged with the problem of communicating effectively in noisy environments.

中文翻译：

蜥蜴和其他动物应对噪音的共同适应所呈现的动物交流中的深度趋同进化

与其他形式的适应相比，交流中的融合似乎很少见。这是令人费解的，因为交流严重依赖于环境，并且当动物在类似的栖息地交流时，预计会在形式上趋同。我们发现了经过超过 1.4 亿年进化的两组热带蜥蜴之间领土交流的深度融合：东南亚Draco和加勒比Anolis. 这些群体沿着共同的环境梯度在显示的多个方面反复收敛。机器人对自由放养的蜥蜴的回放证实，显示中最突出的收敛是自适应的，因为它改善了信号检测。然后，我们从文献样本中提供证据，以进一步表明高度不同的动物群体之间的趋同适应在自然界中几乎可以肯定是普遍存在的。因此，信号演化被限制在同一组自适应解决方案上，尤其是当动物面临在嘈杂环境中进行有效交流的问题时。

更新日期：2021-08-10

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