1. Biological indicators.
2. Study of plants communities.
3. Study of subterranean invertebrates communities .
4. Study of of water invertebrates.
5. Study of vertebrate.
6. Biological monitoring.
2. Study of plants communities.
3. Study of subterranean invertebrates communities .
4. Study of of water invertebrates.
5. Study of vertebrate.
6. Biological monitoring.