Last updated on March 15, 2014 at 21:56 EDT  Oceania Ecozone
Oceania is one of Earth’s eight ecozones. It is the smallest
ecosystem found on the planet. Oceania is unique as it is the
only ecosystem that does not include any continental land mass.
This bioregion includes the Pacific Ocean islands of Micronesia,
Fijian Islands, and most of Polynesia (except for New Zealand).
This is also the youngest ecozone. While the other ecozones
include fragments of ancient continents and land masses, Oceania
is composed of volcanic islands and coral atolls that arose from
the sea in recent times, as late as the Pleistocene. These
islands were created by either volcanic activity or the
collision of tectonic plates that helped push the islands
upward.  The climate of Oceania’s islands is tropical to
subtropical. The climate ranges from humid to dry (seasonally).
Wetter regions of islands are covered by tropical and
subtropical moist broadleaf forests, while the drier regions are
covered with dry broadleaf forests and trop