HIGH TREE ALPHA-DIVERSITY IN AMAZONIAN ECUADOR

被引：253

作者：

VALENCIA, R

BALSLEV, H

MINO, GPY

机构：

[1] Department of Systematic Botany Herbarium, Aarhus University, Aarhus, DK-800

[2] Departamento de Biología, Herbario QCA, P. Universidad Católica del Ecuador, Quito

来源：

BIODIVERSITY AND CONSERVATION | 1994年 / 3卷 / 01期

关键词：

TREE ALPHA-DIVERSITY; AMAZONIA; TERRA-FIRME;

D O I：

10.1007/BF00115330

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

In a 1 ha square plot of terra firme forest at 260 m elevation in Amazonian Ecuador, all trees with diameter at breast height (dbh) greater-than-or-equal-to 5 cm were studied. There were 1561 individuals, 473 species, 187 genera and 54 families. Of these, 693 individuals, 307 species, 138 genera and 46 families had a dbh greater-than-or-equal-to 10 cm. This is the highest number of tree species ever recorded for a tropical rain forest sample of this size. In both dbh classes, the most species-rich families were: Fabaceae sensu lato (including Mimosaceae and Caesalpiniaceae), Lauraceae and Sapotaceae; the most species-rich genera. were Pouteria, Inga and Protium. The vertical space was partitioned among species: 166 species were found only in the 5-10 dbh cm class and were mostly sub-canopy treelets, and 307 species with dbh greater-than-or-equal-to 10 cm were mostly large canopy trees.

引用

页码：21 / 28

页数：8

共 21 条

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