Evolutionary age and risk of extinction in the global avifauna

被引：53

作者：

Gaston, KJ

Blackburn, TM

机构：

[1] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,DEPT BIOL,ASCOT SL5 7PY,BERKS,ENGLAND

[2] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,NERC,CTR POPULAT BIOL,ASCOT SL5 7PY,BERKS,ENGLAND

来源：

EVOLUTIONARY ECOLOGY | 1997年 / 11卷 / 05期

关键词：

birds; extinction risk; population size; range size; taxon age;

D O I：

10.1007/s10682-997-1511-4

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Species at high risk of extinction are not distributed at random among higher taxa. Here we demonstrate that there is a positive relationship between the proportion of species in a taxon which are considered to be threatened and the evolutionary age of that taxon, both for the global avifauna and the avifauna of the New World. The potential mechanisms and consequences of the relationship are examined.

引用

页码：557 / 565

页数：9

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[1] ECOLOGICAL ATTRIBUTES OF EXTINCTION-PRONE SPECIES - LOSS OF FRESH-WATER FISHES OF VIRGINIA [J].