There are a wide range of ecosystems due to reserve being in an area where southern and western biotypes meet. Within the park is the largest remaining area of dry deciduous forest, tropical dry forest, spiny forest, beaches and sand-dunes, mangroves and coral reefs. One hundred and eighty-five species of plants have, so far, been recorded, among them three species of baobab, as well as seven species of mangrove trees.
