nature reserve since the Dutch colonial time in 1936. Four of the only seven species of sea turtles can be found in the islands, the world's best turtle habitat. They include penyu hijau (Chelonia midas), penyu sisik (Eretmochelys imbricata), penyu tempayan (Caretta caretta) and penyu belimbing (Dermochelys coriacea). In 2011, the habitat was threatened by human activities such as illegal poaching and fish bombing activities; furthermore, many coral reefs, which represent a source of food for turtles, have been damaged. Environment The largest environmental issue in Sulawesi is deforestation. In 2007, scientists found that 80 percent of Sulawesi's forest had been lost or degraded, especially centered in the lowlands and the mangroves. Forests have been felled for logging and large agricultural projects. Loss of forest has resulted in many of Sulawesi's endemic species becoming endangered. In addition, 99 percent of Sulawesi's wetlands have been lost or damaged. Other environmental threats included bushmeat hunting and mining. Parks The island of Sulawesi has six national parks and nineteen nature reserves. In addition, Sulawesi has three marine protected areas. Many of Sulawesi's parks are threatened by logging, mining, and deforestation for agriculture. See also List of islands of Indonesia Celebes Sea 2009 Sulawesi superbolide Explanatory notes Citations General sources . . External links Greater Sunda Islands Islands of Indonesia Maritime Southeast Asia Wallacea