Abstract：
:There 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 over-grazing 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.
journal_name
Rev Biol Tropjournal_title
Revista de biologia tropicalauthors
Ramírez JA,Ignacio del Valle Jsubject
Has Abstractpub_date
2011-09-01 00:00:00pages
1389-405issue
3eissn
0034-7744issn
2215-2075journal_volume
59pub_type
杂志文章abstract：:Different features of the satellite associations between the acrocentric chromosomes of 100 postpartum mothers, between 14 and 43 years of age, and 100 neonates (51 males and 49 females) from Puriscal, Costa Rica, were compared (400 cells were examined, 2 from each individual). Several types of satellite associations ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1985-06-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 评论,杂志文章
doi：
更新日期：2007-06-01 00:00:00
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journal_title：Revista de biologia tropical
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doi：10.15517/rbt.v57i1-2.11360
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2008-09-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：2011-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v61i2.11165
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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更新日期：2003-03-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：1983-11-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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更新日期：2010-12-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：1990-11-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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更新日期：2007-06-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：2013-06-01 00:00:00
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journal_title：Revista de biologia tropical
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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更新日期：2016-12-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：2006-09-01 00:00:00
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pub_type： 杂志文章
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更新日期：2015-03-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：2002-03-01 00:00:00
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更新日期：2009-12-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：2011-09-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：2010-12-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：2000-12-01 00:00:00
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更新日期：2005-05-01 00:00:00
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