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| DOI | 10.1093/evolut/qpae006 |
| Diversifying in the mountains: spatiotemporal diversification of frogs in the Western Ghats biodiversity hotspot | |
| 发表日期 | 2024 |
| ISSN | 0014-3820 |
| EISSN | 1558-5646 |
| 英文摘要 | Mountain ranges are hotspots of biodiversity. However, the mechanisms that generate biodiversity patterns in different mountainous regions and taxa are not apparent. The Western Ghats (WG) escarpment in India is a globally recognized biodiversity hotspot with high species richness and endemism. Most studies have either invoked paleoclimatic conditions or climatic stability in the southern WG refugium to explain this high diversity and endemism. However, the factors driving macroevolutionary change remain unexplored for most taxa. Here, we generated the most comprehensive dated phylogeny to date for ranoid frogs in the WG and tested the role of paleoclimatic events or climatic stability in influencing frog diversification. We found that the diversity of different ranoid frog clades in the WG either accumulated at a constant rate through time or underwent a decrease in speciation rates around 3-2.5 Ma during the Pleistocene glaciation cycles. We also find no significant difference in diversification rate estimates across elevational gradients and the three broad biogeographic zones in the WG (northern, central, and southern WG). However, time-for-speciation explained regional species richness within clades, wherein older lineages have more extant species diversity. Overall, we find that global paleoclimatic events have had little impact on WG frog diversification throughout most of its early history until the Quaternary and that the WG may have been climatically stable allowing lineages to accumulate and persist over evolutionary time. |
| 英文关键词 | Ranoidea; escarpment; speciation; museum; cradle; macroevolution |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology ; Genetics & Heredity |
| WOS类目 | Ecology ; Evolutionary Biology ; Genetics & Heredity |
| WOS记录号 | WOS:001154524100001 |
| 来源期刊 | EVOLUTION
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/298569 |
| 作者单位 | Indian Institute of Science (IISC) - Bangalore; Natural History Museum London; Zoological survey of India; State University System of Florida; University of Florida; University of Mysore; Indian Institute of Science (IISC) - Bangalore |
| 推荐引用方式 GB/T 7714 | . Diversifying in the mountains: spatiotemporal diversification of frogs in the Western Ghats biodiversity hotspot[J],2024. |
| APA | (2024).Diversifying in the mountains: spatiotemporal diversification of frogs in the Western Ghats biodiversity hotspot.EVOLUTION. |
| MLA | "Diversifying in the mountains: spatiotemporal diversification of frogs in the Western Ghats biodiversity hotspot".EVOLUTION (2024). |
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