The deciduous and semideciduous seasonal rainforest
(Floresta Estacional Decidual and Semidecidual) are
ecosystems
of the
Atlantic
Rainforest
biome that occur mostly
in the higher and cooler elevations of the mountains ranges in Southeastern Brazil
(see
map).
The seasonal rainforest is characterized by a tropical summer and a dry winter
(different than the nonseasonal tropical rainforest that has no dry season).
Seasonal rainforests are called deciduous when they loose more than 50% of their foliage during
the dry season and semideciduous when they loose between 20 and 50% of their leafs
during the dry season.