High resolution ancient sedimentary DNA shows that alpine plant diversity is associated with human land use and climate change.
High resolution ancient sedimentary DNA shows that alpine plant diversity is associated with human land use and climate change.
复制标题
DOI：
10.1038/s41467-022-34010-4
复制
发表时间：
2022-11-04
影响因子：
16.6
通讯作者：
中科院分区：
文献类型：
--
作者：
欧洲阿尔卑斯山的物种非常丰富，但它们的未来可能会受到人类土地使用和气候持续变化的威胁。在这里，我们基于沉积的古代植物和哺乳动物DNA、花粉、孢子、摇蚊和微炭，重建了过去约12,000年来苏尔塞乌利湖的植被、温度、人类影响和牲畜。我们组装了一个高度完整的本地DNA参考文库（PhyloAlps，3923植物类群），并使用此获得了异常丰富的sedaDNA记录的366植物类群。植被主要响应于气候在全新世早期，而人类活动有一个额外的影响植被从6 ka起。土地利用从新石器时代和青铜器时代的间歇性放牧转变为中世纪的农牧业。相关的人类砍伐森林允许通常在不同海拔带发现的植物物种共存，导致植物丰富度高于该地区目前的高多样性。我们的研究结果表明，低强度的农牧活动和降水与欧洲阿尔卑斯山独特的亚高山和高山植物多样性的维护之间的正相关。在这里，作者使用来自高山湖泊核心的沉积DNA，花粉，真菌孢子，摇蚊和微木炭来重建12，000年的植被。他们发现，植被在全新世早期对气候做出了反应，随后从6000年开始转向人类活动，这与森林砍伐和农牧业的增加相对应。
The European Alps are highly rich in species, but their future may be threatened by ongoing changes in human land use and climate. Here, we reconstructed vegetation, temperature, human impact and livestock over the past ~12,000 years from Lake Sulsseewli, based on sedimentary ancient plant and mammal DNA, pollen, spores, chironomids, and microcharcoal. We assembled a highly-complete local DNA reference library (PhyloAlps, 3923 plant taxa), and used this to obtain an exceptionally rich sedaDNA record of 366 plant taxa. Vegetation mainly responded to climate during the early Holocene, while human activity had an additional influence on vegetation from 6 ka onwards. Land-use shifted from episodic grazing during the Neolithic and Bronze Age to agropastoralism in the Middle Ages. Associated human deforestation allowed the coexistence of plant species typically found at different elevational belts, leading to levels of plant richness that characterise the current high diversity of this region. Our findings indicate a positive association between low intensity agropastoral activities and precipitation with the maintenance of the unique subalpine and alpine plant diversity of the European Alps. Here, the authors use sedimentary DNA, pollen, fungal spores, chironomids, and microcharcoal from an alpine lake core to reconstruct vegetation across 12,000 years. They find that vegetation responded to climate in the early Holocene, followed by a shift to human activity from 6000 years onward corresponding with an increase in deforestation and agropastoralism.
登录
查看更多内容
影响因子：
4.4
作者：
Ficetola GF;Coissac E;Zundel S;Riaz T;Shehzad W;Bessière J;Taberlet P;Pompanon F
通讯作者：
Pompanon F
影响因子：
8.8
作者：
Bakker, ES;Ritchie, ME;Knops, JMH
通讯作者：
Knops, JMH
影响因子：
4.8
作者：
Bardgett, RD;Wardle, DA
通讯作者：
Wardle, DA
影响因子：
5.2
作者：
Brugger, S. O.;Schwikowski, M.;Tinner, W.
通讯作者：
Tinner, W.
影响因子：
2.4
作者：
Finsinger, Walter;Tinner, Willy
通讯作者：
Tinner, Willy