A framework linking biogeography and species traits to plant species vulnerability under global change in Mediterranean-type ecosystems
A framework linking biogeography and species traits to plant species vulnerability under global change in Mediterranean-type ecosystems
复制标题
DOI：
10.21425/f5fbg51254
复制
发表时间：
2021-01
影响因子：
--
通讯作者：
J. Franklin;H. Regan;A. Syphard
中科院分区：
文献类型：
--
作者：
J. Franklin;H. Regan;A. Syphard
我们综述了植物物种特性和生物地理在全球变化下物种暴露和衰退或灭绝的脆弱性中所起的作用，重点讨论了气候变化、土地利用变化和干扰机制改变等多种威胁的单独和综合影响。我们建立了一个概念框架和研究议程，以确定物种范围的空间特征，以及生活史和功能特征，这些特征与植物物种的灭绝风险有关，这些物种的功能属性象征着火灾易发、冬季降水的地中海型生态系统(MTE)。世界各地的MTE的特点是其高度的植物多样性和独特的植物区系，历史和当代土地利用的高变化率，以及气候、火和土地利用之间的强烈相互作用。我们专注于加州植物区系省(CFP)，这是一个全球植物多样性热点的MTE，并展示了我们的框架如何可以用来理解易受多种全球变化驱动因素、物种特征和生物地理之间的关系。可以使用预测植物对全球变化情景的反应的关联分布和种群模型来评估跨物种的脆弱性。我们的总体假设是，MTE中物种特有的全球变化脆弱性是物种和空间特征之间相互作用的函数：这种相互作用的性质将取决于全球变化过程的类型。
We review the roles that plant species traits and biogeography play in species’ exposure and vulnerability to decline or extinction under global change, focusing on separate and combined impacts of multiple threats – climate change, land-use change, and altered disturbance regimes. We establish a conceptual framework and research agenda for identifying the spatial characteristics of species ranges, as well as the life history and functional traits, that are associated with extinction risk for plant species with functional attributes emblematic of fire-prone, winter-precipitation Mediterranean-type ecosystems (MTEs). MTEs worldwide are characterized by their high plant diversity and unique floras, historical and contemporary high rates of land use change, and strong interactions between climate, fire, and land use. We focus on the California Floristic Province (CFP), an MTE that is a global plant diversity hotspot, and show how our framework can be used to understand the relationships between vulnerability to multiple global change drivers, species traits, and biogeography. Vulnerability can be assessed across species using linked distribution and population models that forecast plant responses to global change scenarios. Our overarching hypothesis is that species-specific vulnerability to global change in MTEs is a function of interactions between species and spatial traits: the nature of this interaction will depend on the type of global change process.