早离和晚到:北温带过渡带温带树种的全新世动态

IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY
Todor S. Minchev, Julia Cigana, Pierre Grondin, Yves Bergeron, Guillaume de Lafontaine
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引用次数: 0

摘要

了解全新世周边种群的历史动态为预测物种对当前全球变化的反应提供了关键见解。本文对加拿大东部寒温带森林过渡带3种主要温带树种糖枫(Acer saccharum)、红枫(Acer rubrum)、东部白松(Pinus strobus)的全新世动态进行了研究。对25,595个焦化木材颗粒的土壤大化石炭分析表明,全新世早期在该温带边缘森林遗址发现了白松,全新世中期发现了红枫,晚全新世发现了糖枫。从温暖的中全新世到凉爽的晚全新世的过渡以白松的减少为标志,这是意料之中的,因为温带物种的环境包膜随着新冰期平均温度的降低而向南移动。相比之下,糖枫和红枫的丰度在凉爽的晚全新世时期有所增加。在较温暖的全新世中期发现了较耐寒的红枫,而较冷的晚全新世才发现不耐寒的糖枫。火情的改变,土壤中针叶树优先效应的破坏,以及共享菌根真菌的引入,可能暂时解释了枫树的晚建立和两个物种之间的迁移滞后。合成。由于温带树种比北方树种需要更温暖的温度,一些嗜热树种,如白松,在历史上较温暖的时期在其北部边缘的丰度增加。我们的数据显示,并非所有温带物种都表现出相应的行为:在温暖的中全新世期间,枫树稀少,而在凉爽的晚全新世期间,枫树的丰度增加。迁移滞后表明,可能需要红枫等多面手物种的早期到来,以促进糖枫等专才物种的后期建立。宏观气候趋势与温带物种范围变化之间的历史解耦,为揭示北温带过渡带面对现代人为气候变化的潜在响应提供了新的思路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Early departures and delayed arrivals: Holocene dynamics of temperate tree species in the boreal-temperate ecotone

Early departures and delayed arrivals: Holocene dynamics of temperate tree species in the boreal-temperate ecotone

Early departures and delayed arrivals: Holocene dynamics of temperate tree species in the boreal-temperate ecotone

Early departures and delayed arrivals: Holocene dynamics of temperate tree species in the boreal-temperate ecotone

Early departures and delayed arrivals: Holocene dynamics of temperate tree species in the boreal-temperate ecotone

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来源期刊
Journal of Ecology
Journal of Ecology 环境科学-生态学
CiteScore
10.90
自引率
5.50%
发文量
207
审稿时长
3.0 months
期刊介绍: Journal of Ecology publishes original research papers on all aspects of the ecology of plants (including algae), in both aquatic and terrestrial ecosystems. We do not publish papers concerned solely with cultivated plants and agricultural ecosystems. Studies of plant communities, populations or individual species are accepted, as well as studies of the interactions between plants and animals, fungi or bacteria, providing they focus on the ecology of the plants. We aim to bring important work using any ecological approach (including molecular techniques) to a wide international audience and therefore only publish papers with strong and ecological messages that advance our understanding of ecological principles.
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