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DOI | 10.1016/j.ympev.2018.11.004 |
Diversification of shrub frogs (Rhacophoridae, Pseudophilautus) in Sri Lanka - Timing and geographic context | |
Meegaskumbura, Madhava1,2; Senevirathne, Gayani3; Manamendra-Arachchi, Kelum4; Pethiyagoda, Rohan5; Hanken, James6; Schneider, Christopher J.7 | |
发表日期 | 2019 |
ISSN | 1055-7903 |
EISSN | 1095-9513 |
卷号 | 132页码:14-24 |
英文摘要 | Pseudophilautus comprises an endemic diversification predominantly associated with the wet tropical regions of Sri Lanka that provides an opportunity to examine the effects of geography and historical climate change on diversification. Using a time-calibrated multi-gene phylogeny, we analyze the tempo of diversification in the context of past climate and geography to identify historical drivers of current patterns of diversity and distribution. Molecular dating suggests that the diversification was seeded by migration across a land-bridge connection from India during a period of climatic cooling and drying, the Oi-1 glacial maximum around the Eocene-Oligocene boundary. Lineage-through-time plots suggest a gradual and constant rate of diversification, beginning in the Oligocene and extending through the late Miocene and early Pliocene with a slight burst in the Pleistocene. There is no indication of an early-burst phase of diversification characteristic of many adaptive radiations, nor were there bursts of diversification associated with favorable climate shifts such as the intensification of monsoons. However, a late Miocene (8.8 MYA) back-migration to India occurred following the establishment of the monsoon. The back migration did not trigger a diversification in India similar to that manifest in Sri Lanka, likely due to occupation of available habitat, and consequent lack of ecological opportunity, by the earlier radiation of a sister lineage of frogs (Raorchestes) with similar ecology. Phylogenetic area reconstructions show a pattern of sister species distributed across adjacent mountain ranges or from different parts of large montane regions, highlighting the importance of isolation and allopatric speciation. Hence, local species communities are composed of species from disparate clades that, in most cases, have been assembled through migration rather than in situ speciation. Lowland lineages are derived from montane lineages. Thus, the hills of Sri Lanka acted as species pumps as well as refuges throughout the 31 million years of evolution, highlighting the importance of tropical montane regions for both the generation and maintenance of biodiversity. |
WOS研究方向 | Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity |
来源期刊 | MOLECULAR PHYLOGENETICS AND EVOLUTION |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/94012 |
作者单位 | 1.Guangxi Univ, Guangxi Key Lab Forest Ecol & Conservat, Coll Forestry, Nanning 530004, Peoples R China; 2.Univ Peradeniya, Fac Sci, Dept Mol Biol & Biotechnol, Peradeniya, Sri Lanka; 3.Univ Chicago, Dept Organismal Biol & Anat, Chicago, IL 60637 USA; 4.Postgrad Inst Archaeol, Colombo 07, Sri Lanka; 5.Australian Museum, Ichthyol Sect, Sydney, NSW 2010, Australia; 6.Harvard Univ, Museum Comparat Zool, Cambridge, MA 02138 USA; 7.Boston Univ, Dept Biol, 5 Cummington St, Boston, MA 02215 USA |
推荐引用方式 GB/T 7714 | Meegaskumbura, Madhava,Senevirathne, Gayani,Manamendra-Arachchi, Kelum,et al. Diversification of shrub frogs (Rhacophoridae, Pseudophilautus) in Sri Lanka - Timing and geographic context[J],2019,132:14-24. |
APA | Meegaskumbura, Madhava,Senevirathne, Gayani,Manamendra-Arachchi, Kelum,Pethiyagoda, Rohan,Hanken, James,&Schneider, Christopher J..(2019).Diversification of shrub frogs (Rhacophoridae, Pseudophilautus) in Sri Lanka - Timing and geographic context.MOLECULAR PHYLOGENETICS AND EVOLUTION,132,14-24. |
MLA | Meegaskumbura, Madhava,et al."Diversification of shrub frogs (Rhacophoridae, Pseudophilautus) in Sri Lanka - Timing and geographic context".MOLECULAR PHYLOGENETICS AND EVOLUTION 132(2019):14-24. |
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