near villages and the depletion of near-shore fish species. While well-vegetated, most islands show signs of deforestation. The islands have been logged, particularly of high-value timber, subjected to wide-scale slash-and-burn agriculture, and converted to coconut plantations and cattle ranches, and now show evidence of increased soil erosion and landslides. Many upland watersheds are being deforested and degraded, and fresh water is becoming increasingly scarce. Proper waste disposal, as well as water and air pollution, are becoming troublesome issues around urban areas and large villages. Additionally, the lack of employment opportunities in industry and inaccessibility to markets have combined to lock rural families into a subsistence or self-reliance mode, putting tremendous pressure on local ecosystems. The country had a 2019 Forest Landscape Integrity Index mean score of 8.82/10, ranking it 18th globally out of 172 countries. Flora and fauna Despite its tropical forests, Vanuatu has a limited number of plant and animal species. It has an indigenous flying fox, Pteropus anetianus. Flying foxes are important rainforest and timber regenerators. They pollinate and seed disperse a wide variety of native trees. Their diet is nectar, pollen and fruit and they are commonly called "fruit bats". They are in decline across their South Pacific range. However, governments are increasingly aware of the economic and ecological value of flying foxes and there are calls to increase their protection. There are no indigenous large mammals. The nineteen species of native reptiles include the flowerpot snake, found only on Efate. The Fiji banded iguana (Brachylophus fasciatus) was introduced as a feral animal in the 1960s. There are eleven species of bats (three unique to Vanuatu) and sixty-one species of land and water birds. While the small Polynesian rat is thought to be indigenous, the large species arrived with Europeans, as did domesticated hogs, dogs, and cattle. The ant species of some of the islands of Vanuatu were catalogued by E. O. Wilson. The region is rich in sea life, with more than 4,000 species of marine molluscs and a large diversity of marine fishes. Cone snails and stonefish carry poison fatal to humans. The Giant East African land snail arrived only in the 1970s, but already has spread from the Port Vila region to Luganville. There are three or possibly four adult saltwater crocodiles living in Vanuatu's mangroves and no current breeding population. It is said the crocodiles reached the northern part of the islands after