For example, the personnel of a given protected area focus not only on issues related to that area, but also assume thematic responsibilities across the entire mosaic. The mosaic structure helps address environmental and socio-economic challenges, many of which are common to all protected areas, and facilitates the resolution of conflicts arising in border areas. Such conflicts are often linked to the monitoring and control of natural resource use. While these are mostly carried out for community consumption as traditional activities, product sales to commercial companies are increasing, turtle trafficking, for example, has become a major challenge in the region. Enforcement of park regulations has caused many families to move to the neighbouring extractive reserve, where natural resource use is permitted. This plan probably has too many potentially conflicting objectives and has not been fully implemented.