Quantitative biogeography in the South America highlands-recognizing the Altoandina, Puna and Prepuna through the study of Poaceae
Quantitative biogeography in the South America highlands-recognizing the Altoandina, Puna and Prepuna through the study of Poaceae
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DOI：
10.1111/j.1096-0031.2009.00248.x
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发表时间：
2009-06-01
期刊：
影响因子：
3.6
通讯作者：
Morrone, Osvaldo
中科院分区：
文献类型：
--
作者：
Aagesen, Lone;Szumik, Claudia A.;Morrone, Osvaldo
利用NDM/VNDM程序，对阿根廷西北角53.219km（2）范围内（近似南纬21度和近似南纬24度之间）的340种牧草的分布资料进行了分析，以寻找物种分布的一致性。在这里，传统的地理假说提出的区域进行了评估，第一次使用定量方法和最佳标准专门开发的背景下，特有的领域。使用三种不同的网格大小（0.5度x 0.5度、0.35度x 0.35度和0.2度x 0.2度）来分析三个嵌套数据集：在阿根廷、玻利维亚和/或智利的安第斯山脉发现的物种;安第斯分布的物种;以及研究区域发现的所有草种。分析所支持的主要领域一般符合为该地区提出的传统地理学假设。由限制在研究区域的物种定义的局部分布模式在小网格尺寸下得到最好的支持，而较大的网格尺寸则恢复了由分布范围更广的物种定义的区域。当地的分布模式出现在所有的分析，即使广泛分布的物种被添加到数据集。(C)2009年，威利·亨尼格协会。
The distribution data of 340 grass species sampled in a region of 53.219 km(2) in the northwestern corner of Argentina (between similar to 21 degrees S and similar to 24 degrees S) were analyzed to search for concordance in species distributions by using the program NDM/VNDM. Here, the traditional biogeographic hypothesis proposed for the region is evaluated for the first time by using a quantitative method and an optimal criterion specifically developed within the context of areas of endemism. Three different grid sizes (0.5 degrees x 0.5 degrees, 0.35 degrees x 0.35 degrees and 0.2 degrees x 0.2 degrees) were used to analyze three nested data sets: species found in the Andes of Argentina, Bolivia and/or Chile; Andean distributed species; and all grass species found in the study region. The main areas supported by the analyses correspond generally to the traditional biogeographic hypothesis proposed for the region. Local distribution patterns defined by species restricted to the study region were best supported under the small grid sizes, while the bigger grid sizes recovered areas defined by species with a broader distribution. The local distribution patterns emerged in all the analyses even when widespread species were added to the data set.(C) The Willi Hennig Society 2009.