The 332 islands of Fiji host many endemic species, including over a thousand plant species and 12 types of reptiles. Human impacts are limited on many islands, as over 200 are uninhabited and 87% of the human population resides on the 2 main islands. Around 50% of the land territory is covered in forests. Land and marine natural resources are at the heart of the Fijian Economy, with tourism revenues exceeding 165% Million US$ per year. Conservation measures include the establishment of over 100 Locally Managed Marine Protected Areas (LMMAs).