Although this ecoregion is spread among many islands, the floristic communities are related, as Mindanao and the eastern Visayas were all one connected island in the lower sea levels of the
Pleistocene (the ice age from 2.8 million years ago to 11,700 years ago). Currently, 43% of the ecoregion is closed broadleaf evergreen forest, 20% is open forest, 9% is under cultivation for agriculture, and 5% is non-forest herbaceous cover. Beach vegetation merges into beach forest away from the coast, featuring trees of genus
Casuarina (a tall evergreen with feather-like leaves) and
Barringtonia. The lowland rain forests are dominated by trees of genus (
Dipterocarpus) up through 400 meters. As elevations increase the dipterocarps are joined by
Pterocarpus indicus, Pandans
Pandanus, and others. Upper hill dipterocarp forests are found from 650 meters to 1,000 meters, where the dominant trees are
Shorea polysperma, oaks, chestnuts, and
elaeocarps. Above 1,000 meters, the ecoregions transitions into
montane rain forest. The small outlying islands preserve distinctive sub-ecoregions.
Camiguin Island, with an area of 238 km2, that has two endemic mammal species and an endemic frog. Dinagat Island has three endemic mammal species, including the elusive Dinagat bushy-tailed cloud rat (
Crateromys australis). Mindanao supports the vulnerable Philippine deer (
Cervus mariannus nigricans). == Protected areas ==