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Paleoclima de La Guajira, Colombia; según los anillos de crecimiento de Capparis odoratissima (Capparidaceae)

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dc.coverageCRCes-ES
dc.creatorRamírez, Jorge Andrés
dc.creatordel Valle, Jorge Ignacio
dc.date2010-09-20
dc.date.accessioned2016-05-03T15:29:34Z
dc.date.available2016-05-03T15:29:34Z
dc.descriptionThere is great concern about the effect of climate change in arid and subarid areas of the tropics. Climate change combined with other anthropogenic activities such as deforestation, fires and overgrazing can accelerate their degradation and, consequently, the increases in losses of biological and economic productivity. Climate models, both local and global, predict that rainfall in the arid Peninsula of La Guajira in the Colombian Caribbean would be reduced and temperature would be increased as a result of climate change. However, as there are only suitable climate records since 1972, it is not possible to verify if, indeed, this is happening. To try to verify the hypothesis of reducing rainfall and rising temperatures we developed a growth ring chronology of Capparis odoratissima in the Middle Peninsula of La Guajira with 17 trees and 45 series which attain 48 years back. We use standard dendrochronological methods that showed statistically significant linear relationship with local climatic variables such as air temperature, sea surface temperature (SST), annual precipitation and wind speed; we also reach to successful relationship of the chronology with global climatic variables as the indices SOI and MEI of the ENSO phenomenon. The transfer functions estimated with the time series (1955 and 2003) do not showed statistically significant trends, indicating that during this period of time the annual precipitation or temperatures have not changed. The annual nature of C. odoratissima growth rings, the possibility of cross-dated among the samples of this species, and the high correlation with local and global climatic variables indicate a high potential of this species for dendrochronological studies in this part of the American continent.es-ES
dc.formatapplication/pdf
dc.identifierhttp://revistas.ucr.ac.cr/index.php/rbt/article/view/3406
dc.identifier10.15517/rbt.v0i0.3406
dc.identifier.urihttps://hdl.handle.net/10669/26704
dc.languagespa
dc.publisherUniversidad de Costa Ricaen-US
dc.rightsCopyright (c) 2014 International Journal of Tropical Biology and Conservationen-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 59 (3) September 2011en-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 59 (3) September 2011es-ES
dc.sourceRevista Biología Tropical; Vol. 59 (3) September 2011pt-PT
dc.source2215-2075
dc.source0034-7744
dc.source10.15517/rbt.v0i0
dc.titlePaleoclima de La Guajira, Colombia; según los anillos de crecimiento de Capparis odoratissima (Capparidaceae)es-ES
dc.typeartículo original

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Revista de Biología Tropical