对《不对称协同进化网络促进生物多样性维持》的评论

Comment on "Asymmetric coevolutionary networks facilitate biodiversity maintenance".

作者信息

Holland J Nathaniel, Okuyama Toshinori, DeAngelis Donald L

机构信息

Department of Ecology and Evolutionary Biology, Rice University, Houston, TX 77005, USA.

出版信息

Science. 2006 Sep 29;313(5795):1887; author reply 1887. doi: 10.1126/science.1129547.

DOI:10.1126/science.1129547

PMID:17008511

Abstract

Bascompte et al. (Reports, 21 April 2006, p. 431) used network asymmetries to explain mathematical conditions necessary for stability in historic models of mutualism. The Lotka-Volterra equations they used artificially created conditions in which some factor, such as asymmetric interaction strengths, is necessary for community coexistence. We show that a more realistic model incorporating nonlinear functional responses requires no such condition and is consistent with their data.

摘要

巴斯孔特等人（《报告》，2006年4月21日，第431页）利用网络不对称性来解释互利共生历史模型中稳定性所需的数学条件。他们所使用的洛特卡 - 沃尔泰拉方程人为地创造了一些条件，在这些条件下，诸如不对称相互作用强度等某些因素对于群落共存是必要的。我们表明，一个纳入非线性功能反应的更现实模型不需要这样的条件，并且与他们的数据一致。