A phytogeographic analysis of cloud forests and other forest subtypes amidst the Atlantic forests in south and southeast Brazil
A phytogeographic analysis of cloud forests and other forest subtypes amidst the Atlantic forests in south and southeast Brazil
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巴西南部和东南部大西洋森林中云雾森林和其他森林亚型的植物地理学分析
DOI：
10.1007/s10531-011-0129-6
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发表时间：
2011
影响因子：
3.4
通讯作者：
G. J. Shepherd
中科院分区：
文献类型：
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作者：
Ricardo Bertoncello;Kikyo Yamamoto;L. D. Meireles;G. J. Shepherd
在之前的一项研究中，Cuscuzeiro（Ubatuba，SP）（820-1270米），在巴西东南海岸，我们发现了两个植物不同的森林，一个在1120米以上，似乎有一些典型的云雾森林的特征，另一个在低海拔的斜坡下面。以这两个森林为参照点，我们解决了两个问题：（1）它们与巴西东南部其他大西洋森林亚型的区系关系如何？(2)这一地区的云雾森林是构成一个特殊的植物区系-植物地理学构造，还是它们周围群落的一个子集？从109个调查（包括Cuscuzeiro山）的83个地点在巴西东南部的物种被编译成一个二元（存在-不存在）的植物区系矩阵。采用聚类分析（UPGMA，TWINSPAN）和排序（DCA，PCO和CA）方法对这些样品之间的相似性进行了分析。调查分为六个主要组：（1）云雾林;（2）“Salesópolis”组;（3）沿海森林，细分为（a）斜坡森林和（B）沿海平原（“Restinga”）森林和山顶森林（不包括在云雾林组）;（4）南洋杉森林;（5）内陆季节性森林（从下面的约。700米）;和（6）内陆山地森林（从上面约。700米）。本文介绍了TWINSPAN编制的云雾林类群的优势种和指示种。Cuscuzeiro山森林从上面和从下面1120米分别与云雾林和沿海斜坡森林组聚类。我们的结论是，云雾森林包括一个独特的植物地理形成在巴西东南部地区。
In a previous study near the summit of Mt. Cuscuzeiro (Ubatuba, SP) (820–1270 m), on the SE Brazilian coast, we found two floristically different forests, one above 1120 m, that appears to have a number of features typical of cloud forests, and another on the lower altitude slopes below. Taking these two forests as reference points, we addressed two questions: (1) What are their floristic relationships with other Atlantic forest subtypes in S-SE Brazil?; (2) Do the cloud forests in this region constitute a particular floristic-phytogeographic formation or are they a subset of their surrounding community? Species from 109 surveys (including Mount Cuscuzeiro) of 83 locations in S-SE Brazil were compiled into a binary (presence-absence) floristic matrix. Analyses of similarity among these samples using clustering (UPGMA, TWINSPAN) and ordination (DCA, PCO and CA) methods were performed. The surveys were divided into six main groups: (1) Cloud Forests; (2) “Salesópolis” group (3) Coastal Forests, subdivided between (a) Slope Forests and (b) Coastal Plain (“Restinga”) Forests and Mountaintop Forests (not included in the Cloud Forests group); (4) Araucaria Forests; (5) Inland Seasonal Forests (from below ca. 700 m); and (6) Inland Montane Forests (from above ca. 700 m). The preferential and indicator species of the Cloud Forest group produced by TWINSPAN are presented. The Mount Cuscuzeiro forests from above and from below 1120 m were clustered with the Cloud Forests and the coastal Slope Forests groups, respectively. We concluded that Cloud forests comprise a distinct phytogeographic formation in Brazilian S-SE region.