HISTORICAL BIOGEOGRAPHY OF SOUTHERN SOUTH-AMERICA
HISTORICAL BIOGEOGRAPHY OF SOUTHERN SOUTH-AMERICA
复制标题
DOI：
10.2307/2992254
复制
发表时间：
1991-06-01
期刊：
影响因子：
--
通讯作者：
ROIGJUNENT, S
中科院分区：
文献类型：
--
作者：
CRISCI, JV;CIGLIANO, MM;ROIGJUNENT, S
通过对 17 个分类单元分支图进行分支生物地理学分析，研究了南美洲南部和北部、北美和南温带地区之间关系的历史生物地理模式。 应用了三种技术：Wiley 的生物地理学简约分析、Nelson 和 Platnick 的成分分析以及 Humphries、Ladiges、Roos 和 Zandee 的成分定量分析。 生物地理简约分析产生了两个一般面积分支图（CI = 0.74）。 在成分分析下，通过最多 10 组面积分支图的交集获得了 6 个一般面积分支图（其中 2 个根据 Nelson 和 Platnick 的假设 1，4 个根据他们的假设 2）。 成分分析的量化在假设 1 下产生了 9 个分支图 (CI = 0.50)，在假设 2 下产生了 1 个分支图 (CI = 0.45)。结果支持南美生物群的混合起源。 南美洲北部生物群与北美生物群关系最为密切，南美洲南部与澳大利亚、塔斯马尼亚、新几内亚、新喀里多尼亚和新西兰构成单系群，反映了古代南方生物群的存在。 提出了关于南美洲南部和其他南方地区的区域关系的四种相互矛盾的假设，表明南美洲南部本身可能是一个复合区域。
Historical biogeographic patterns of relationships among southern and northern South America, North America, and southern temperate areas were investigated by a cladistic biogeographic analysis of 17 taxon cladograms. Three techniques were applied: Wiley's biogeographic parsimony analysis, Nelson and Platnick's component analysis, and Humphries, Ladiges, Roos, and Zandee's quantification of component analysis. Biogeographic parsimony analysis yielded two general area cladograms (CI = 0.74). Under component analysis, six general area cladograms (two under Nelson and Platnick's assumption 1 and four under their assumption 2) were obtained through the intersection of a maximum of 10 sets of area cladograms. Quantification of component analysis produced nine cladograms (CI = 0.50) under assumption 1 and one (CI = 0.45) under assumption 2. The results support a hybrid origin of the South American biota. The northern South American biota is most closely related to that of North America, and southern South America constitutes a monophyletic group together with Australia, Tasmania, New Guinea, New Caledonia, and New Zealand, reflecting the existence of an ancient austral biota. Four conflicting hypotheses of area relationships concerning southern South America and the other austral areas are proposed, suggesting that southern South America may be a composite area in itself.