3. Conclusion

3.1 Green and brown grids: complementary grids

According to the conceptual model of the brown grid (TBr) developed in the Tram'BioSol project, the TBr is included in the green grid (TV). The urban green grid is defined as all vegetated areas used by invertebrate or vertebrate organisms living on the ground surface, capable of moving several hundred meters per year and usually equipped with legs and/or wings. They find trophic resources and/or protection from predators in plant communities. The location of TV's vegetated areas makes it possible to map soil surfaces capable of ensuring primary production of food resources for soil biodiversity, and thus to identify potential TBr. However, TBr concerns organisms that are more constrained in terms of movement and food resources, as TBr-using...