INVESTIGADORES
MARCO Diana Elizabeth
artículos
Título:
Modelling biological invasions: species traits, species interactions and habitat heterogeneity.
Autor/es:
SERGIO CANNAS; DIANA MARCO; SERGIO PAEZ
Revista:
Mathematical Biosciences
Referencias:
Año: 2003 vol. 183 p. 93 - 110
Resumen:
In this paper we explore the integration of different factors to understand, predict and control ecological
invasions, through a general cellular automaton model especially developed. The model includes life history
traits of several species in a modular structure interacting multiple cellular automata. We performed
simulations using field values corresponding to the exotic Gleditsia triacanthos and native co-dominant trees
in a montane area. Presence of G. triacanthos juvenile bank was a determinant condition for invasion
success. Main parameters influencing invasion velocity were mean seed dispersal distance and minimum
reproductive age. Seed production had a small influence on the invasion velocity. Velocities predicted by the
model agreed well with estimations from field data. Values of population density predicted matched field
values closely. The modular structure of the model, the explicit interaction between the invader and the
native species, and the simplicity of parameters and transition rules are novel features of the model.Gleditsia triacanthos and native co-dominant trees
in a montane area. Presence of G. triacanthos juvenile bank was a determinant condition for invasion
success. Main parameters influencing invasion velocity were mean seed dispersal distance and minimum
reproductive age. Seed production had a small influence on the invasion velocity. Velocities predicted by the
model agreed well with estimations from field data. Values of population density predicted matched field
values closely. The modular structure of the model, the explicit interaction between the invader and the
native species, and the simplicity of parameters and transition rules are novel features of the model.G. triacanthos juvenile bank was a determinant condition for invasion
success. Main parameters influencing invasion velocity were mean seed dispersal distance and minimum
reproductive age. Seed production had a small influence on the invasion velocity. Velocities predicted by the
model agreed well with estimations from field data. Values of population density predicted matched field
values closely. The modular structure of the model, the explicit interaction between the invader and the
native species, and the simplicity of parameters and transition rules are novel features of the model.