Terrestrial ecosystem transformations in response to rapid climate change during the last deglaciation around Mono Lake, California, USA
Terrestrial ecosystem transformations in response to rapid climate change during the last deglaciation around Mono Lake, California, USA
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美国加利福尼亚州莫诺湖周围末次冰消期间陆地生态系统因气候快速变化而发生的转变
DOI：
10.1017/qua.2022.70
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发表时间：
2023
影响因子：
2.3
通讯作者：
McGlue, Michael M.
中科院分区：
文献类型：
--
作者：
Benfield, Adam J.;Ivory, Sarah J.;Hodelka, Bailee N.;Zimmerman, Susan R.H.;McGlue, Michael M.
我们利用来自深海沉积物岩心的花粉、微炭和嗜菌真菌孢子（Sporormiella）研究了16000 - 9000 calyr BP末次冰期加利福尼亚Mono湖周围陆地生态系统的主要重组。花粉研究结果记录了Mono湖周围高山和大盆地混合群落的组成、衰落和被碱池和山艾草草原生物群落取代的过程。特别是全新世早期红杉型花粉的神秘存在及其消失，暗示了冰川消退期间，喜马拉雅—大盆地过渡带发生了大规模的生物地理重组。在14,800 cal yr BP、13,900 cal yr BP和12,800 cal yr BP，快速的区域水文气候变化导致了松柏林地的结构变化。冠层的快速变化改变了草本林下植物的可用性，可能对巨型动物种群造成压力，在15,000 cal - yr BP和12,700 cal - yr BP时，巨型动物种群逐渐减少，最终在11,500 cal - yr BP时从Mono盆地灭绝。然而，在晚更新世期间，树木植被群落总体上对水文气候突变保持抗性；在全新世早期，随着气温的升高，它们逐渐减少，被低地的碱汇群落所取代，Mono湖逐渐退化。
We examine major reorganizations of the terrestrial ecosystem around Mono Lake, California during the last deglacial period from 16,000–9,000 cal yr BP using pollen, microcharcoal, and coprophilous fungal spores (Sporormiella) from a deep-water sediment core. The pollen results record the assemblage, decline, and replacement of a mixed wooded community of Sierran and Great Basin taxa with Alkali Sink and Sagebrush Steppe biomes around Mono Lake. In particular, the enigmatic presence of Sequoiadendron-type pollen and its extirpation during the early Holocene hint at substantial biogeographic reorganizations on the Sierran-Great Basin ecotone during deglaciation. Rapid regional hydroclimate changes produced structural alterations in pine–juniper woodlands facilitated by increases in wildfires at 14,800 cal yr BP, 13,900 cal yr BP, and 12,800 cal yr BP. The rapid canopy changes altered the availability of herbaceous understory plants, likely putting pressure on megafauna populations, which declined in a stepwise fashion at 15,000 cal yr BP and 12,700 cal yr BP before final extirpation from Mono Basin at 11,500 cal yr BP. However, wooded vegetation communities overall remained resistant to abrupt hydroclimate changes during the late Pleistocene; instead, they gradually declined and were replaced by Alkali Sink communities in the lowlands as temperature increased into the Early Holocene, and Mono Lake regressed.
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影响因子：
1
作者：
R. Ornduff;M. Barbour;J. Major
通讯作者：
R. Ornduff;M. Barbour;J. Major
影响因子：
4
作者：
M. Kirby;S. Feakins;Nicole Bonuso;Joanna M. Fantozzi;C. Hiner
通讯作者：
M. Kirby;S. Feakins;Nicole Bonuso;Joanna M. Fantozzi;C. Hiner
加利福尼亚州莫诺湖的全新世沉积结构和古气候变化
DOI：
10.1130/2020.2536(19
发表时间：
2019
期刊：
From Saline to Freshwater: The Diversity of Western Lakes in Space and Time
影响因子：
--
作者：
S. Zimmerman;S. Hemming;S. Starratt
通讯作者：
S. Starratt
三个闭盆湖泊的气体交换率1
影响因子：
4.5
作者：
T. Peng;W. Broecker
通讯作者：
W. Broecker
从湖泊沉积物中提取、分选和 AMS 测定花粉浓缩物的改进方法
影响因子：
4.5
作者：
I. Tunno;S. Zimmerman;T. Brown;Christiane A. Hassel
通讯作者：
Christiane A. Hassel