在污染环境中个体的持续生存与绝灭(英文)  

Persistence and Extinction of an Individual in a Polluted Environment

作　　者：闫慧臻[1] 马知恩[2] 

机构地区：[1]大连轻工业学院信息科学与工程学院,大连116034 [2]西安交通大学数学系,西安710049

出　　处：《工程数学学报》2007年第1期145-156,共12页Chinese Journal of Engineering Mathematics

摘　　要：近年来,国内外许多学者对环境污染下种群的持续生存与绝灭进行了大量的研究。但是,有关污染环境中非自治个体生长模型的研究刚刚起步,有关这方面的文章还很少见到。本文对具有毒素影响的非自治个体生长模型进行了研究,给出了个体持续生存与绝灭的一些充分条件。Persistence and extinction of population or community models in a polluted environment have been investigated by many papers, but the study of individual models in a polluted environment is just in the beginning. Up to now, there are few papers which studied persistence and extinction of a non-autonomous toxicant-individual models. In this article, this problem has been discussed. Some sufficient conditions on persistence or extinction for a non-autonomous toxicant-individual model have been obtained.

关 键 词：毒素-个体模型 持续生存 绝灭 污染环境 

分 类 号：Q141[生物学—生态学]