| DOI: | 10.1016/j.palaeo.2012.10.043
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| 论文题名: | Seasonality, montane beta diversity, and Eocene insects: Testing Janzen's dispersal hypothesis in an equable world |
| 作者: | Archibald S.B.; Greenwood D.R.; Mathewes R.W.
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| 刊名: | Palaeogeography, Palaeoclimatology, Palaeoecology
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| ISSN: | 0031-0182
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| 出版年: | 2013
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| 卷: | 371 | | 起始页码: | 1
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| 结束页码: | 8
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| 语种: | 英语
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| 英文关键词: | Beta diversity
; Eocene
; Fossil insects
; Okanagan Highlands
; Paleoentomology
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| 英文摘要: | We test Janzen's (1967) hypothesis that the low temperature seasonality in the modern tropics accounts for increased local species turnover (beta diversity) across montane landscapes relative to those of the more seasonal Temperate Zone. In the Eocene, low seasonality extended beyond the hot tropics to Polar Regions, therefore, its effects on montane dispersal ability should have been decoupled from low latitude. We sampled fossil insect communities across the Okanagan Highlands: a thousand kilometer transect of temperate, low temperature seasonality, higher mid-latitude Eocene uplands of far-western North America. We find high species turnover, supporting a prime role of temperature fluctuation in controlling montane beta diversity. This high upper mid-latitude montane endemism is consistent with greater Eocene global biodiversity. © 2012 Elsevier B.V. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/69841
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| Appears in Collections: | 过去全球变化的重建
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作者单位: | Dept. of Biological Sciences, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada; Royal BC Museum, Victoria, BC, V8W 1A1, Canada; Museum of Comparative Zoology, Cambridge, MA, 02138, United States; Biology Dept., Brandon University, Brandon, MB, R7A 6A9, Canada
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| Recommended Citation: | |
Archibald S.B.,Greenwood D.R.,Mathewes R.W.. Seasonality, montane beta diversity, and Eocene insects: Testing Janzen's dispersal hypothesis in an equable world[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,371
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