Is the originality of a species measurable?

被引：142

作者：

Pavoine, S ^{[1
]}

Ollier, S ^{[1
]}

Dufour, AB ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, UMR 5558, Lab Biometrie & Biol Evolut, F-69622 Villeurbanne, France

来源：

ECOLOGY LETTERS | 2005年 / 8卷 / 06期

关键词：

biodiversity; Carnivora; conservation biology; divergence times; feature richness; phylogenetics; quadratic entropy; uniqueness;

D O I：

10.1111/j.1461-0248.2005.00752.x

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

In this paper, we introduce the concept of 'originality of a species within a set' in order to indicate the average rarity of all the features belonging to this species. Using a phylogenetic tree of 70 species of New World terrestrial Carnivora, we suggest measuring the originality by a probability distribution. This maximizes the expected number of features shared by two species randomly drawn from the set. By using this new index, we take account of branch lengths whereas current indices of originality focus on tree topology. As a supplement to Nee and May's optimizing algorithm, we find that originality must be one of the criteria used in conservation planning.

引用

页码：579 / 586

页数：8

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