SENSITIVITY OF GLOBAL TERRESTRIAL ECOSYSTEMS TO CLIMATE VARIABILITY


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Autores: Alistair W. R. Seddon, Marc Macias-Fauria, Peter R. Long, David Benz & Kathy J. Willis

Published online 17 February 2016

The identification of properties that contribute to the persistence and resilience of ecosystems despite climate change constitutes a research priority of global relevance1. Here we present a novel, empirical approach to assess the relative sensitivity of ecosystems to climate variability, one property of resilience that builds on theoretical modelling work recognizing that systems closer to critical thresholds respond more sensitively to external perturbations2. We develop a new metric, the vegetation sensitivity index, that identifies areas sensitive to climate variability over the past 14 years. The metric uses time series data derived from the moderate-resolution imaging spectroradiometer (MODIS) enhanced vegetation index3, and three climatic variables that drive vegetation productivity4 (air temperature, water availability and cloud cover). Consulte el artículo completo en Nature http://www.nature.com/nature/journal/vaop/ncurrent/full/nature16986.html

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