@article {655, title = {A computational modeling for real ecosystems based on P systems}, journal = {Natural Computing}, volume = {10}, year = {2010}, pages = {39-53}, publisher = {Springer Verlag}, address = {Amsterdam, Netherlands}, abstract = {In this paper, a P systems based general framework for modeling ecosystems dynamics is presented. Particularly, ecosystems are specified by means of multienvironment P systems composed of a finite number of environments, each of them having an extended P system with active membranes. The semantics is of a probabilistic type and it is implemented by assigning each rule of the system a probabilistic constant which depends on the environment and the run time. As a case study, two real ecosystems are described: scavenger birds in the Catalan Pyrenees and the zebra mussel (Dreissena Polymorpha) in Ribarroja reservoir (Spain). }, keywords = {Dynamics, Ecosystem, Mussel, P-System, Probabilistic, Scavenger}, issn = {1567-7818}, doi = {10.1007/s11047-010-9191-3}, url = {http://www.springerlink.com/content/k5346u33465h5u50/}, author = {M{\'o}nica Cardona and M. Angels Colomer and Antoni Margalida and Antoni Palau and Ignacio P{\'e}rez-Hurtado and Mario J. P{\'e}rez-Jim{\'e}nez and Delf{\'\i} Sanuy} }