Environmental changes, coextinction, and patterns in the fossil record

被引：54

作者：

Amaral, LAN ^{[1
]}

Meyer, M

机构：

[1] MIT, Dept Phys, Cambridge, MA 02139 USA

[2] Boston Univ, Ctr Polymer Studies, Boston, MA 02215 USA

[3] Boston Univ, Dept Phys, Boston, MA 02215 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.82.652

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We introduce a new model for large scale evolution and extinction in which species are organized into food webs. The system evolves by two processes: origination/speciation and extinction. Ln the model, extinction of a given species can be due to an externally induced change in the environment or due to the extinction of all preys of that species (coextinction). The model is able to reproduce the empirical observations without defining a fitness function or invoking competition between species. [S0031-9007(98)08245-3].

引用

页码：652 / 655

页数：4

共 33 条

[1] EXTRATERRESTRIAL CAUSE FOR THE CRETACEOUS-TERTIARY EXTINCTION - EXPERIMENTAL RESULTS AND THEORETICAL INTERPRETATION [J].