COMPETING POPULATION MODEL WITH NONLINEAR INTRASPECIFIC REGULATION AND MATURATION DELAYS

COMPETING POPULATION MODEL WITH NONLINEAR INTRASPECIFIC REGULATION AND MATURATION DELAYS
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具有非线性种内调节和成熟延迟的竞争群体模型

DOI:
10.1142/s1793524512600078
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发表时间:
2012-05
影响因子:
2.2
通讯作者:
Tang, Jianliang
Tang, Jianliang
中科院分区:
数学2区
文献类型:
--
作者:
Liu, Shengqiang;Xie, Xizhuang;Tang, Jianliang

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研究了两种群竞争模型中非线性种内调节和成熟时滞的联合作用。研究了该模型的动力学行为,建立了共存平衡点和排斥平衡点的全局渐近稳定性准则。结果表明,物种成熟延迟的增加对其持久性有负面影响,足够大的成熟延迟将直接导致物种灭绝,物种种内调节参数的变化可能改变其竞争者的生存或灭绝行为.
This paper considers the combined effects of the nonlinear intra-specific regulation and maturation delays on the two-species competition model. Dynamical behaviors of the model are studied, and sharp global asymptotical stability criteria for the coexistence equilibrium as well as the excluding equilibria are established. It is shown that increase of the maturation delay of one species has negative effect on its permanence and a sufficiently large maturation delay will directly lead to its extinction, and that variation of the intra-specific regulation parameter of one species may change the surviving or extinction behaviors of its competitor.
DOI: 10.2307/1939039
发表时间: 1980-01-01
期刊: ECOLOGY
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