Global Decline in Large Old Trees

Science  07 Dec 2012:
Vol. 338, Issue 6112, pp. 1305-1306
DOI: 10.1126/science.1231070

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Large old trees are among the biggest organisms on Earth. They are keystone structures in forests, woodlands, savannas, agricultural landscapes, and urban areas, playing unique ecological roles not provided by younger, smaller trees. However, populations of large old trees are rapidly declining in many parts of the world, with serious implications for ecosystem integrity and biodiversity.