for instance, a biological reserve with limited public access can be  part of a larger ecological reserve, with unlimited public access. the reserves are subject to a variety of rules becoming increasingly strict, as the relative importance of these areas is growing both nationally, and internationally.

protected areas classified as biological reserves are normally accessable for research and educational purposes only. ecological reserves, on the other hand, are open to the public, and restrictions normally apply only to the kind of economic and touristic activities that are allowed within it.