Effects of pulse culling on population growth of migratory birds and economical birds

被引：5

作者：

Zhang, Fumin ^{[1
]}

Gao, Shujing ^{[1
]}

Zhang, Yan ^{[1
]}

机构：

[1] Gannan Normal Univ, Key Lab Jiangxi Prov Numer Simulat & Emulat Tech, Ganzhou 341000, Peoples R China

来源：

NONLINEAR DYNAMICS | 2012年 / 67卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Migratory bird; Economical bird; Nonautonomous competition system; Pulse culling; PERMANENCE; EXTINCTION; SYSTEM; DISPERSAL; STABILITY;

D O I：

10.1007/s11071-011-0025-3

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An increased number of economical birds is one of the major threats affecting migratory birds population. In this paper, we consider two competing species: rare migratory bird and economical bird, and investigate a nonautonomous two species competitive model with a Holling-type II functional response, which the pulse culling is incorporated. By utilizing an analyzing method, sufficient and realistic conditions on permanence, extinction of the two species, existence of positive periodic solution, and the global attractivity of semitrivial periodic solution are established. The theoretical results are confirmed by numerical simulations.

引用

页码：767 / 779

页数：13

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