globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2015.10.028
论文题名:
Madagascar's climate at the K/P boundary and its impact on the island's biotic suite
作者: Ohba M.; Samonds K.E.; LaFleur M.; Ali J.R.; Godfrey L.R.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 441
起始页码: 688
结束页码: 695
语种: 英语
英文关键词: Biogeography ; Dispersal ; Evolution ; K/P boundary ; Madagascar ; Origin ; Paleogene
英文摘要: The K/P boundary, 66 Ma, was a critical time in the history of the planet's biota. On the island of Madagascar, few Late Cretaceous species survived the associated extinction, and distance from the various mainland sources then acted as a strong filter for the number of over-water arrivees. Reconstructing the climate of the early Paleogene is vital for understanding the environments to which new colonizers landed and established a toe-hold on the island. Beginning with a "global" air-sea-coupled climate model simulation using the land-sea distribution at 66. Ma, we used dynamical downscaling to construct a scenario for how the atmospheric and oceanic fluid envelopes washed over and around the Madagascar at the start of the Paleocene. Dynamical downscaling of the global model yields a climate model with much finer resolution. We used this method to reconstruct the habitats for known fossil localities from that general period, better understand the ecological diversity of plants and animals that have been hypothesized to have then been present, and evaluate hypotheses regarding the evolutionary history of lemurs-a vast clade of primates endemic to Madagascar whose last common ancestor dates to this time. Our results show an island with a climate notably different from that of today, but not nearly as arid as others have suggested: the spiny thicket biome did not exist temperatures were lower; rainfall less seasonal. © 2015 Elsevier B.V.
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被引频次[WOS]:21   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68682
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作者单位: Central Research Institute of Electric Power Industry (CRIEPI), Environmental Science Research Laboratory, 1646 Abiko, Abiko-shi, Chiba, Japan; Department of Biological Sciences, Northern Illinois University, DeKalb, IL, United States; University of Veterinary Medicine Vienna, Veterinarplatz 1, Vienna, Austria; Department of Earth Sciences, University of Hong Kong, Pokfulam Road, Hong Kong; Department of Anthropology, University of Massachusetts, 240 Hicks Way, Amherst, MA, United States

Recommended Citation:
Ohba M.,Samonds K.E.,LaFleur M.,et al. Madagascar's climate at the K/P boundary and its impact on the island's biotic suite[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,441
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