predator-prey;
reaction-diffusion;
time delay;
bifurcation;
pattern formation;
D O I:
10.1007/BF00160498
中图分类号:
Q [生物科学];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
We consider a predator-prey system in the form of a coupled system of reaction-diffusion equations with an integral term representing a weighted average of the values of the prey density function, both in past time and space. In a limiting case the system reduces to the Lotka Volterra diffusion system with logistic growth of the prey. We investigate the linear stability of the coexistence steady state and bifurcations occurring from it, and expressions for some of the bifurcating solutions are constructed. None of these bifurcations can occur in the degenerate case when the nonlocal term is in fact local.
机构:
Jiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R ChinaJiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R China
Liu, Jiang
Shang, Xiaohui
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机构:
Jiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R ChinaJiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R China
Shang, Xiaohui
Du, Zengji
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机构:
Jiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R ChinaJiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R China
机构:
ANLIMAD Team, LAMA Laboratory, Faculty of Sciences, Mohammed V University in Rabat, RabatTSI Team, MACS Laboratory, Faculty of Sciences, Moulay Ismail University of Meknès, Meknes, Zitoune
机构:
China Univ Geosci, Sch Math & Phys, Wuhan 430074, Hubei Province, Peoples R ChinaChina Univ Geosci, Sch Math & Phys, Wuhan 430074, Hubei Province, Peoples R China
Qiao, Meihong
Liu, Anping
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机构:
China Univ Geosci, Sch Math & Phys, Wuhan 430074, Hubei Province, Peoples R ChinaChina Univ Geosci, Sch Math & Phys, Wuhan 430074, Hubei Province, Peoples R China
Liu, Anping
Forys, Urszula
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机构:
Warsaw Univ, Fac Math Informat & Mech, Inst Appl Math & Mech, PL-02097 Warsaw, PolandChina Univ Geosci, Sch Math & Phys, Wuhan 430074, Hubei Province, Peoples R China