When Marismas Nacionales, Nayarit, Mexico, was declared a biosphere reserve, there was community resistance to change of their current productive practices. CONANP developed a long-term strategy for changing perception of the context of climate change impacts, that was focused on raising awareness, capacity development, and continual technical support. A specific measure has been the rehabilitation of mangrove ecosystems through the reestablishment of natural salt and fresh water flows.