Predicting extinction of mammals in the Brazilian Amazon

被引：25

作者：

Grelle, CEV ^{[1
]}

机构：

[1] Univ Estado Rio De Janeiro, IBRAG, DBAV, Lab Zool Vertebrados,Setor Zool, BR-20559900 Rio De Janeiro, Brazil

来源：

ORYX | 2005年 / 39卷 / 03期

关键词：

Amazonia; Brazil; frugivores; functional group; habitat loss; neotropics; rainforest; species-area relationship;

D O I：

10.1017/S0030605305000700

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Using the species-area correlation I predicted the percentage of endemic Amazonian mammals committed to extinction by 2020 as an outcome of deforestation resulting from the implementation of mega-infrastructure projects in the Brazilian Amazon. Simulations based on optimistic and non-optimistic deforestation scenarios showed a 2-fold and a 3-fold increase, respectively, in Amazonian mammals committed to extinction. The predicted number of threatened species by 2020 was 5-18% of the total number of endemic mammal species, depending on the scenario and equation used. This increase in extinction rates could be catastrophic for ecosystem stability in the Amazon because the loss of functional groups may produce a cascade effect of species extinctions.

引用

页码：347 / 350

页数：4

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