Large-scale patterns of turnover and Basal area change in Andean forests.

Autor:	Báez S; Consorcio para el Desarrollo Sostenible de la Ecoregión Andina (CONDESAN), Quito, Ecuador; Universidad Técnica Particular de Loja, Loja, Ecuador., Malizia A; Consejo Nacional de Ciencias de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina; Instituto de Ecología Regional (IER), Universidad Nacional de Tucumán, Tucumán, Argentina., Carilla J; Consejo Nacional de Ciencias de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina; Instituto de Ecología Regional (IER), Universidad Nacional de Tucumán, Tucumán, Argentina., Blundo C; Consejo Nacional de Ciencias de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina; Instituto de Ecología Regional (IER), Universidad Nacional de Tucumán, Tucumán, Argentina., Aguilar M; Facultad de Ciencias Forestales, Universidad Nacional Agraria La Molina, Lima, Perú, Aguirre N; Universidad Nacional de Loja, Loja, Ecuador., Aquirre Z; Universidad Nacional de Loja, Loja, Ecuador., Álvarez E; Laboratorio de Servicios Ecosistémicos y Cambio Climático, Jardín Botánico de Medellín, Medellín, Colombia., Cuesta F; Consorcio para el Desarrollo Sostenible de la Ecoregión Andina (CONDESAN), Quito, Ecuador., Duque Á; Departamento de Ciencias Forestales, Universidad Nacional de Colombia, Medellín, Colombia., Farfán-Ríos W; Department of Biology, Wake Forest University, Winston-Salem, North Carolina, United States of America., García-Cabrera K; Department of Biology, Wake Forest University, Winston-Salem, North Carolina, United States of America., Grau R; Consejo Nacional de Ciencias de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina., Homeier J; Plant Ecology, University of Göttingen, Göttingen, Germany., Linares-Palomino R; Facultad de Ciencias Forestales, Universidad Nacional Agraria La Molina, Lima, Perú, Malizia LR; Facultad de Ciencias Agrarias, Universidad Nacional de Jujuy, Jujuy, Argentina; Fundación ProYungas, Jujuy, Argentina., Cruz OM; Grupo de investigación en Biodiversidad y Dinámica de Ecosistemas Tropicales, Universidad del Tolima, Bogotá, Colombia., Osinaga O; Instituto de Ecología Regional (IER), Universidad Nacional de Tucumán, Tucumán, Argentina., Phillips OL; School of Geography, University of Leeds, Leeds, United Kingdom., Reynel C; Facultad de Ciencias Forestales, Universidad Nacional Agraria La Molina, Lima, Perú, Silman MR; Department of Biology, Wake Forest University, Winston-Salem, North Carolina, United States of America., Feeley KJ; International Center for Tropical Botany, Department of Biological Sciences, Florida International University, Miami, Florida, United States of America.
Jazyk:	angličtina
Zdroj:	PloS one [PLoS One] 2015 May 14; Vol. 10 (5), pp. e0126594. Date of Electronic Publication: 2015 May 14 (Print Publication: 2015).
DOI:	10.1371/journal.pone.0126594
Abstrakt:	General patterns of forest dynamics and productivity in the Andes Mountains are poorly characterized. Here we present the first large-scale study of Andean forest dynamics using a set of 63 permanent forest plots assembled over the past two decades. In the North-Central Andes tree turnover (mortality and recruitment) and tree growth declined with increasing elevation and decreasing temperature. In addition, basal area increased in Lower Montane Moist Forests but did not change in Higher Montane Humid Forests. However, at higher elevations the lack of net basal area change and excess of mortality over recruitment suggests negative environmental impacts. In North-Western Argentina, forest dynamics appear to be influenced by land use history in addition to environmental variation. Taken together, our results indicate that combinations of abiotic and biotic factors that vary across elevation gradients are important determinants of tree turnover and productivity in the Andes. More extensive and longer-term monitoring and analyses of forest dynamics in permanent plots will be necessary to understand how demographic processes and woody biomass are responding to changing environmental conditions along elevation gradients through this century.
Databáze:	MEDLINE
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