Non-local interaction effects in models of interacting populations
被引:3
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作者:
Simoy, Mario I.
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机构:
UNSa, Inst Invest Energia No Convenc, CONICET, Salta, Argentina
UNCPBA, Inst Multidisciplinario Ecosistemas & Desarrollo S, CICPBA, Tandil, ArgentinaUNSa, Inst Invest Energia No Convenc, CONICET, Salta, Argentina
Simoy, Mario I.
[1
,2
]
Kuperman, Marcelo N.
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机构:
FiEstIn, Ctr Atom Bariloche, Gerencia Fis, San Carlos De Bariloche, Argentina
Univ Nacl Cuyo, Inst Balseiro, San Carlos De Bariloche, Argentina
Consejo Nacl Invest Cient & Tecn, San Carlos De Bariloche, ArgentinaUNSa, Inst Invest Energia No Convenc, CONICET, Salta, Argentina
Kuperman, Marcelo N.
[3
,4
,5
]
机构:
[1] UNSa, Inst Invest Energia No Convenc, CONICET, Salta, Argentina
[2] UNCPBA, Inst Multidisciplinario Ecosistemas & Desarrollo S, CICPBA, Tandil, Argentina
[3] FiEstIn, Ctr Atom Bariloche, Gerencia Fis, San Carlos De Bariloche, Argentina
[4] Univ Nacl Cuyo, Inst Balseiro, San Carlos De Bariloche, Argentina
[5] Consejo Nacl Invest Cient & Tecn, San Carlos De Bariloche, Argentina
We consider a couple of models for the dynamics of the populations of two interacting species, inspired by Lotka-Volterra's classical equations. The main feature of this work is that the interaction terms are non local and the interactions occur within a bounded range. These terms include the competitive intraspecific interaction among individuals and the interspecific terms for which we consider two cases: Competition and predation. The results show that not only the non-locality induces spatial structures but also allows for the survival of the species when due to predation or the competitive exclusion extinction was expected, and even promotes spatio-temporal patterns not linked to eventual temporal oscillations in the local case. In this work, we also explore some interesting details about the behavior of the population dynamics that shows spatial patterns that interfere in a way that leads to non-trivial results. In this way, we complement and extend some results obtained in previous works.
机构:
Dipartimento Meccan Matemat & Management, Via Re David 200, I-70125 Bari, ItalyDipartimento Meccan Matemat & Management, Via Re David 200, I-70125 Bari, Italy
Maddalena, Francesco
Percivale, Danilo
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机构:
Univ Genoa, Dipartimento Ingn Prod Termoenerget & Modelli Mat, Piazzale Kennedy,Padigl D, I-16129 Genoa, ItalyDipartimento Meccan Matemat & Management, Via Re David 200, I-70125 Bari, Italy
Percivale, Danilo
Tomarelli, Franco
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机构:
Politecn Milan, Dipartimento Matemat, Piazza Leonardo da Vinci 32, I-20133 Milan, ItalyDipartimento Meccan Matemat & Management, Via Re David 200, I-70125 Bari, Italy
机构:
Comis Nacl Energia Atom, GIyA, Dept Theoret Phys, Libertador 8250, RA-1429 Buenos Aires, DF, Argentina
Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, ArgentinaComis Nacl Energia Atom, GIyA, Dept Theoret Phys, Libertador 8250, RA-1429 Buenos Aires, DF, Argentina
Pagura, V.
Gomez Dumm, D.
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机构:
Univ Nacl La Plata, IFLP, CONICET, Dpto Fis, RA-1900 La Plata, Buenos Aires, Argentina
Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, ArgentinaComis Nacl Energia Atom, GIyA, Dept Theoret Phys, Libertador 8250, RA-1429 Buenos Aires, DF, Argentina