报告人简介：
Alejandro Ordonez于2011年在荷兰University of Groningen获得博士学位，2011-2017年先后在美国University of Wisconsin–Madison和丹麦Aarhus University从事博士后研究工作，现为丹麦Aarhus University助理教授， Center for Biodiversity Dynamics in a Changing World (BIOCHANGE)核心成员。Ordonez博士主要从事宏生态学和全球变化生态学的研究工作，尤其是围绕植物功能性状开展了很多原创性的工作，已发表SCI论文30余篇，其中第一作者论文15篇，第一作者论文发表在Nature Climate Change (2), Ecology Letters (1), Ecology (1), Global Ecology and Biogeography (4)等。详见：https://www.researchgate.net/profile/Alejandro_Ordonez2?ev=brs_highl
报告内容简介：
We live in a world of rising novelty. Many contemporary ecosystems already differ substantively from all historical counterparts, due to species introductions, land use, species extinctions, altered nutrient cycling, etc. Future ecosystems are expected to differ from those found today, as species differentially lag rapid climate change, and as novel climates emerge and species occupy previously unavailable portions of their fundamental niches. However, to address this challenge we need to answer important questions, including 1) How do we define novelty and by what criteria? 2) By what mechanisms do novel climates give rise to novel ecosystems, and what metrics best represent the exposure of communities to climate-driven reorganization? Here, I will present my work aimed at describing how much, in which direction and at what rates have(will) climatic conditions change. I will also show how these approaches can be extended to other environmental dimensions (i.e., land use changes). The goal of this effort is describing how environmental changes can potentially cause the emergence of novel species assemblages and therefore the emergence of novel ecosystems. I will finish with some ideas regarding how these changes can lead to lasting changes in ecosystem services and functions.
