The Christmas Island red crab is a species of land crab that is endemic to Christmas Island and Cocos (Keeling) Islands in the Indian Ocean. Although restricted to a relatively small area, an estimated 43.7 million adult red crabs once lived on Christmas Island alone, but the accidental introduction of the yellow crazy ant is believed to have killed about 10–15 million of these in recent years. Christmas Island red crabs make an annual mass migration to the sea to lay their eggs in the ocean. Although its population is under great assault by the ants, as of 2020 the red crab had not been assessed by the International Union for Conservation of Nature (IUCN) and it was not listed on their Red List. The crab's annual mass migration to the sea for spawning is described as an "epic" event. Millions emerge at the same time, halting road traffic and covering the ground in a thick carpet of crabs.
The Belizean pine forests is an ecoregion that represents an example of lowland and premontane pine forests in the Neotropical realm, where the dominant tree species is Caribbean pine. The vegetation here is generally adapted to the xeric, acidic and nutrient-poor conditions along the Belizean near coastal zone of the Caribbean versant.
The Hainan Island monsoon rain forests ecoregion covers mountainous interior of Hainan Island in China. The tropical forests receive over 1,000 mm/year of rain, heavily concentrated in the summer rainy season. The island has high levels of biodiversity, with over 4,200 plant species, 630 of which are endemic to the island. The region is under ecological pressure from deforestation for agriculture and timber extraction.
The South Taiwan monsoon rain forests ecoregion covers the southern tip of Taiwan, 200 km east of the mainland. The area is one of high biodiversity, due to its location between temperate and subtropical zones, its monsoon exposure, and its high altitude variation.
The Northern Khorat Plateau moist deciduous forests ecoregion covers a small area on the border between northeastern Thailand and Laos, in the transition zone between the drier Khorat Plateau to the south and the wetter Annamite Range and Luang Prabang Range mountains to the north. Much of the ecoregion has been converted to agriculture along the floodplain of the middle course of the Mekong River.
The Eastern Java–Bali montane rain forests ecoregion covers the higher altitude mountain rainforests on the eastern side of the island of Java, and most of the center of the island of Bali in Indonesia. The region has a number of active volcanoes, but is under pressure from growing human populations pushing into higher elevations and more marginal land. With elevations rising from sea level to 3,426 metres (11,240 ft), and precipitation varying between rainforest and drier forest levels, the area has many different forest types – evergreen, deciduous and semi-alpine.
The Eastern Java-Bali rain forests ecoregion covers the lowland areas of the eastern half of the island of Java, and the island of Bali, in Indonesia. This ecoregion is distinct from the Eastern Java-Bali montane rain forests, which exists at higher elevations where mountain forest habitat dominates. Very little of the natural lowland rainforest remains in its pre-human settlement state.
The Mindoro rain forests ecoregion covers the island of Mindoro, which lies between the island of Luzon and the Palawan Archipelago in the Philippines. The island has been subject to heavy commercial logging, with the only original forests remaining on the high ridge of the central mountain range. Logging has been reduced long enough on the east side of the mountains to support a regrown forest and a number of endemic species.
The Western Java montane rain forests ecoregion covers the montane rain forest above 1,000 meters in the volcanic mountain ridges in the west of the island of Java in Indonesia. Several mammals and bird species are found only in this ecoregion, including the Javan mastiff bat (Otomops formosus) and the Volcano mouse (Mus vulcani). Only about one-fifth of the original rainforest remains in its original state, as human pressures are encroaching on the mountain slopes.
The Western Java rain forests ecoregion covers the lowland rain forests below 1,000 meters in elevation in the western half of the island of Java in Indonesia. There are a variety of forest types - evergreen, semi-evergreen, moist deciduous, and even some patches of freshwater swamp. The forests have degraded by conversion of the low areas to agriculture, and by logging. National parks protect some of the last remaining untouched rain forest. A number of endangered mammals are found in the ecoregion, including the Javan rhinoceros, the silvery gibbon, and the Javan surili.
The Central American Atlantic moist forests ecoregion covers the lowland coastal forests of Honduras, southeast Guatemala, and the eastern forests of Nicaragua. Half of the ecoregion is closed-canopy tropical broadleaf evergreen forest, with tree heights reaching 50 meters. This ecoregion has the largest single fragment of natural forest in Central America, with a size of 14,629 square kilometres (5,648 sq mi). The total area is 89,979 square kilometres (34,741 sq mi).
The Costa Rican seasonal moist forests ecoregion covers the Pacific Slope of the volcanic mountain range of northwestern Costa Rica and the extreme south of Nicaragua. The area has a distinct dry season during which the characteristic deciduous trees drop their leaves. The forests themselves have been highly degraded in the past by human conversion to agriculture and settlement. The Costa Rican capital city of San Jose is in the middle of this ecoregion.
The Moist Pacific Coast mangroves ecoregion covers a series of disconnected mangrove sites along the Pacific Ocean coast of Costa Rica and Panama. These sites occur mostly on coastal flatlands around lagoons, particularly where rivers from the inland mountains reach the sea, bringing fresh water to the coastal forests. The area is in a transition zone from the drier coastline to the north; rainfall in this ecoregions is over 2,000 mm/year, and reaches over 3,600 mm/year at the southern end.
The Petenes mangroves ecoregion covers mangrove habitat along the Gulf of Mexico coast of southern Mexico, where Campeche state and Yucatan state meet, centering on the Celestun Lagoon inland from the barrier-island town of Celestún. Because the region has relatively little rainfall and no rivers feeding the lagoons, the freshwater to support the mangrove ecosystem springs from underground aquifers. The area is important for migratory birds, and as a nesting area for sea turtles. The area around the Celestun Lagoon is protected by the Ría Celestún Biosphere Reserve, a UNESCO Biosphere Reserve, and Los Petenes Biosphere Reserve in Campeche.
The Rio Piranhas mangroves ecoregion covers a series of mangrove forests along the Atlantic Ocean coast of the eastern tip of Brazil. The mangrove sections are spread across 350 km, from the mouth of the Mamanguape River in the north, to the vicinity of Maceió in the south. This coast is centered on the city of Recife, and the mangrove sections often surround industrial ports and cities.
The Rio Sao Francisco mangroves ecoregion covers series of mangrove forests along the Atlantic Ocean coast of eastern Brazil, from the outskirts of Maceió southwards to just south of Salvador, Bahia. This ecoregion has high biodiversity, as it lies in different sub-climate zones, with a dry season in the north but not in the south.
The Cayos Miskitos-San Andrés & Providencia moist forests ecoregion cover the forested areas of four islands in the western Caribbean Sea - Cayos Miskitos and the Corn Islands off the east coast of Nicaragua, and San Andrés and Providencia Islands farther east and belonging to the nation of Colombia. The forests on San Adres and Providencia have been heavily degraded by agriculture - coconuts on San Andres, oranges on Providencia. A significant feature of the ecoregion is the surrounding corals reefs, which are large and well preserved. While not technically a part of this terrestrial ecoregion, they are related to the islands.
The Leeward Islands moist forests ecoregion covers the forested areas of the Leeward Islands on the northeastern edge of the Caribbean Sea, stretching from the Virgin Islands in the west to Guadeloupe to the southeast. The forested areas are typically in the core interior of the islands, and at the higher elevations of the volcanic islands. Non-forested lower elevations in the region receive less rainfall and are typically semi-arid. A notable feature of the ecoregion is its position in the main hurricane track. The frequent damage to trees produces in many places an uneven forest canopy, and an opening of the canopy that allows more pre-climax trees to grow.
The Leeward Islands xeric scrub ecoregion covers the dry ('xeric'), non-forested areas of the Leeward Islands on the northeastern edge of the Caribbean Sea, stretching from the Virgin Islands in the west to Guadeloupe to the southeast. The non-forested areas are generally low scrub shrub, on the low elevations around the peripheries of the islands. Non-forested lower elevations in the region receive less rainfall and are typically semi-arid. A notable feature of the ecoregion is its position in the main hurricane track. The frequent damage to trees allows more pre-climax shrubs and trees to grow. There are a number of endemic species, as in common with islands.
The Trinidad and Tobago moist forests ecoregion covers most of Trinidad Island and Tobago Island near the coast of South America where the southeastern Caribbean Sea meets the Atlantic Ocean. Small portions of the islands around river estuaries and coastal lowlands are mangroves or dry forests. Species diversity is very high, in particular for plants and birds. Tobago, being much smaller, has fewer species.
