标题:Population dynamics and evolution in river ecosystems
作者:Xu, Fangfang; Gan, Wenzhen; Tang, De
作者机构:[Xu, Fangfang] Shandong Univ Sci & Technol, Coll Math & Syst Sci, Qingdao 266590, Shandong, Peoples R China.; [Xu, Fangfang] Qingdao Univ, Sch Autom 更多
通讯作者:Tang, De;Tang, D
通讯作者地址:[Tang, D]Sun Yat Sen Univ, Sch Math Zhuhai, Zhuhai 519082, Guangdong, Peoples R China.
来源:NONLINEAR ANALYSIS-REAL WORLD APPLICATIONS
出版年:2020
卷:51
DOI:10.1016/j.nonrwa.2019.102983
关键词:Competition-diffusion-advection; Evolution; Persistence; Principal; eigenvalue; Global stability
摘要:In this paper, we consider a single species model and a two-species competition model arising in river ecology. An interesting feature of these models lies in the boundary conditions, where there may appear a net loss of individuals from the habitat ends, as measured by two parameters b(u) and b(d). We first determine various sufficient conditions for the persistence of a single species, in terms of the critical habitat size and critical advection rate. Then we turn to study a competition system, where two populations are supposed to differ only in their advection speeds. By using the theory of monotone dynamical systems and principal spectrum, we achieve a complete understanding on the global dynamics, which suggests that weaker advective movement is more beneficial for species to win the competition, extending several existing work (Lou et al., 2016; Xu and Gan, 2019; Zhou and Zhao, 2018). (C) 2019 Elsevier Ltd. All rights reserved.
收录类别:EI;SCOPUS;SCIE
Scopus被引频次:1
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85073703741&doi=10.1016%2fj.nonrwa.2019.102983&partnerID=40&md5=6555fde65a15a56577bbf883eb6fed98
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