48,000 years of climate and forest change in a biodiversity hot spot
48,000 years of climate and forest change in a biodiversity hot spot
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DOI：
10.1126/science.1090795
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发表时间：
2004-02-06
期刊：
影响因子：
56.9
通讯作者：
Urrego, DH
中科院分区：
文献类型：
--
作者：
Bush, MB;Silman, MR;Urrego, DH
来自新热带低山地森林的连续4.8万年的古生态记录显示，森林一直存在，冰河时期的温度下降了5到9摄氏度。经过3万年的成分稳定，物种的稳定更替标志着从冰期到全新世的8000年过渡。虽然这种变化是有方向性的，但在这一过渡时期，群落的变化速度与之前3万年的群落稳定时期没有什么不同。在更新世-全新世过渡期间，每千年约1摄氏度的变暖速率比21世纪的预估变化少一个数量级。
A continuous 48,000-year-long paleoecological record from Neotropical lower montane forest reveals a consistent forest presence and an ice-age cooling of similar to5degrees to 9degreesC. After 30,000 years of compositional stability, a steady turnover of species marks the 8000-year-long transition from ice-age to Holocene conditions. Although the changes were directional, the rates of community change were no different during this transitional period than in the preceding 30,000-year period of community stability. The warming rate of about 1degreesC per millennium during the Pleistocene-Holocene transition was an order of magnitude less than the projected changes for the 21st century.