Paleoenvironments shaped the exchange of terrestrial vertebrates across Wallace's Line

• 成果类型: Article
• 署名作者: Skeels, A.; Boschman, L. M.; McFadden, I. R.; Joyce, E. M.; Hagen, O.; Robles, O. Jimenez; Bach, W.; Boussange, V.; Keggin, T.; Jetz, W.; Pellissier, L.
• 署名单位: Swiss Federal Institutes of Technology Domain; ETH Zurich; Swiss Federal Institutes of Technology Domain; Swiss Federal Institute for Forest, Snow & Landscape Research; Australian National University; Utrecht University; University of Amsterdam; University of Munich; German Research Foundation (DFG); German Centre for Integrative Biodiversity Research (iDiv); Universite PSL; Ecole Normale Superieure (ENS); Yale University; Yale University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-11287
• DOI: 10.1126/science.adf7122
• 发表日期: 2023-07-07
• 页码: 86-91
• 关键词: evolutionary history; molecular phylogeny; floristic exchange; fossil record; biogeography; origin; WORLD; diversification; mitochondrial; patterns

摘要

Faunal turnover in Indo-Australia across Wallace's Line is one of the most recognizable patterns in biogeography and has catalyzed debate about the role of evolutionary and geoclimatic history in biotic interchanges. Here, analysis of more than 20,000 vertebrate species with a model of geoclimate and biological diversification shows that broad precipitation tolerance and dispersal ability were key for exchange across the deep-time precipitation gradient spanning the region. Sundanian (Southeast Asian) lineages evolved in a climate similar to the humid stepping stones of Wallacea, facilitating colonization of the Sahulian (Australian) continental shelf. By contrast, Sahulian lineages predominantly evolved in drier conditions, hampering establishment in Sunda and shaping faunal distinctiveness. We demonstrate how the history of adaptation to past environmental conditions shapes asymmetrical colonization and global biogeographic structure.