植物物种在20世纪的最佳海拔高度上升的显著转变
J Lenoir1, J C Gégout, P A Marquet
1AgroParisTech, UMR 1092, Laboratoire d'Etude des Ressources Forêt-Bois (LERFoB), 14 rue Girardet, F-54000 Nancy, France. jonathan.lenoir@agroparistech.fr
概括
气候变暖正在导致森林植物物种在西欧每十年上升29米的最佳海拔. 这种上升的转变影响了物种的核心分布,而不仅仅是它们的边缘.
科学领域:
- 生态生态学 生态生态学
- 气候变化生物学 气候变化生物学
- 植物学 植物学
背景情况:
- 气候变化对物种分布的影响通常在它们的范围边缘 (度/高度极端) 观察到.
- 以前的研究集中在范围的变化上,往往忽视了物种核心分布中的变化.
- 了解物种最佳海拔变化对于预测社区对变暖的反应至关重要.
研究的目的:
- 调查气候变暖对西欧森林植物物种高度分布的影响.
- 量化物种最佳位置上升偏移的速度.
- 确定气候变化是否影响物种的核心分布,而不仅仅是它们的范围边缘.
主要方法:
- 在两个时间段中比较了171个森林植物物种的高度分布:1905年至1985年和1986年至2005年.
- 分析了西欧整个海拔范围 (海拔02600米) 的数据.
- 计算了物种每十年最佳海拔的平均上升变化.
主要成果:
- 森林植物物种的最佳海拔高度上升显著,平均每十年29米.
- 仅限于山地息地和草地物种的物种表现出更大的向上转移.
- 这些发现表明,气候变化影响了物种分布的空间核心,而不仅仅是它们的边缘.
结论:
- 气候变暖正在推动西欧森林植物物种最佳海拔的大幅上升.
- 高度转移的速度受到息地特异性和物种的生命历史特征 (例如,种群周转) 的影响.
- 这项研究表明,气候变化深刻地改变了物种的分布,影响了范围边缘和核心区域.
更多相关视频
10:14Reconstructing Terrestrial Paleoclimate and Paleoecology with Fossil Leaves Using Digital Leaf Physiognomy and Leaf Mass Per Area
Published on: October 25, 2024
15:30A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions
Published on: August 5, 2020
相关概念视频
Threats to Biodiversity
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
Global Climate Change
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
Responses to Drought and Flooding
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
Plant Breeding and Biotechnology
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
Formation of Species
Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.Allopatric SpeciationIn allopatric speciation, gene flow between two populations of the same species is prevented by a geographic barrier, like...
Introduction to Plant Diversity
From Water to Land
