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The evolution of flight in bats: a novel hypothesis
Mammal Review ( IF 4.3 ) Pub Date : 2020-09-10 , DOI: 10.1111/mam.12211 Sophia C. Anderson 1 , Graeme D. Ruxton 1
中文翻译：
蝙蝠飞行的进化：一个新的假设
更新日期：2020-09-30
Mammal Review ( IF 4.3 ) Pub Date : 2020-09-10 , DOI: 10.1111/mam.12211 Sophia C. Anderson 1 , Graeme D. Ruxton 1
Affiliation
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- Bats (order Chiroptera) are the only mammals capable of powered flight, and this may be an important factor behind their rapid diversification into the over 1400 species that exist today – around a quarter of all mammalian species. Though flight in bats has been extensively studied, the evolutionary history of the ability to fly in the chiropterans remains unclear.
- We provide an updated synthesis of current understanding of the mechanics of flight in bats (from skeleton to metabolism), its relation to echolocation, and where previously articulated evolutionary hypotheses for the development of flight in bats stand following recent empirical advances. We consider the gliding model, and the echolocation‐first, flight‐first, tandem development, and diurnal frugivore hypotheses. In the light of the recently published description of the web‐winged dinosaur Ambopteryx longibrachium, we draw together all the current evidence into a novel hypothesis.
- We present the interdigital webbing hypothesis: the ancestral bat exhibited interdigital webbing prior to powered flight ability, and the Yangochiroptera, Pteropodidae, and Rhinolophoidea evolved into their current forms along parallel trajectories from this common ancestor. Thus, we suggest that powered flight may have evolved multiple times within the Chiroptera and that similarity in wing morphology in different lineages is driven by convergence from a common ancestor with interdigital webbing.
中文翻译：
蝙蝠飞行的进化：一个新的假设
- 蝙蝠（翼手目目）是唯一能够进行动力飞行的哺乳动物，这可能是它们迅速多样化发展为目前存在的1400多种物种（约占所有哺乳动物物种的四分之一）的重要因素。尽管蝙蝠的飞行已经得到了广泛的研究，但是在鳞翅目动物中飞行的能力的进化历史仍不清楚。
- 我们提供了有关蝙蝠飞行机理（从骨骼到新陈代谢）的当前理解，其与回声定位的关系的最新综合信息，以及随着最近的经验进展，蝙蝠飞行发展的先前明确阐述的进化假设的立场。我们考虑了滑行模型，以及回声定位优先，飞行优先，串联开发和昼夜节食假说。根据最近发布的关于网翅恐龙Ambopteryx longibrachium的描述，我们将所有当前证据汇总到一个新的假设中。
- 我们提出叉指状织带假设：祖先蝙蝠在动力飞行能力之前表现出叉指状织带，而扬氏鳞翅目，翼足类和Rhinoolophoidea沿此共同祖先的平行轨迹演变成当前形式。因此，我们建议动力飞行在翼手目中可能已经演化了多次，并且不同谱系中机翼形态的相似性是由共同祖先与叉指织带的融合驱动的。
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