Rise of the sources

摘要

Ecosystems can be said to have a 'metabolism' because their constituent organisms suck in carbon dioxide for use during photosynthesis and release CO_2 by respiration. 'Sink' ecosystems take in more CO_2 than they emit, whereas 'source' ecosystems do the opposite - and climate change is predicted to alter the balance between them.rnGabriel Yvon-Durocher at the Queen Mary University of London, Jose Montoya at the Institute of Marine Sciences in Barcelona, Spain, and their colleagues have developed a theoretical model of the effects of warming on ecosystem metabolism.