IFIMAR   20926
INSTITUTO DE INVESTIGACIONES FISICAS DE MAR DEL PLATA
Unidad Ejecutora - UE
artículos
Título:
A Mechanism for Pattern formation in dynamic populations by effect of gregarious instinct
Autor/es:
SERGIO E. MANGIONI
Revista:
PHYSICA A - STATISTICAL AND THEORETICAL PHYSICS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2011 vol. 391 p. 113 - 113
ISSN:
0378-4371
Resumen:
We introduced the gregarious instinct by means of a novel strategy that considers the average effect of the attractive forces between individuals within a given population. We watched how pattern formation can be explained by effect of aggregation depending on conditions on food and / or mortality. We propose a model that describes the corresponding dynamicand by a linear stability analysis of homogeneous solutionsidentify and interpret the region of parameters where these patternsare stable. Then we test numerically these preliminary results and findstable patterns as solutions. Finally, we developed a simplified modelallowed us to understand in greater detail the processes involved.
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