Eco-P Colonies

Eco-P colonies are constructed as natural extension of P colonies with dynamical evolution of environment. P colonies are one of the kind of computational models based on independent autonomous agents represented by membrane systems working and evolving in a shared environment. These acts are based on the set of program associated with every agent. There are two types of agents in eco-P colonies senders and consumers. They differ by the type of programs. The eco-P colonies have a mechanism (0L scheme) which can change the objects in the environment. We show that eco-P colonies with ”active” environment and with two agents consumers can generate every recursive enumerable set of natural numbers and the family of sets of natural numbers computed by partially blind register machine is subset of the family of sets of natural numbers computed by eco-P colonies with ”static” environment and one agent sender and one agent consumer.