Lesser Antillean dry forests

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Lesser Antillean dry forests
St. Vincent, Karibik - Kingstown - Looking north from Fort Charlotte - panoramio.jpg
Ecoregion NT0220.png
Ecoregion territory (in blue dashed box)
Ecology
Realm Neotropic
Biome Tropical and subtropical moist broadleaf forests
Borders
Geography
Area130 km2 (50 sq mi)
Country Dominica, Martinique, Saint Lucia, Saint Vincent and the Grenadines, Grenada
Coordinates 13°50′02″N61°03′43″W / 13.834°N 61.062°W / 13.834; -61.062

The Lesser Antillean dry forests ecoregion (WWF ID: NT0220) covers the dry forests of the coastal lowlands of the Lesser Antilles, where the eastern Caribbean Sea meets the Atlantic Ocean. These forests generally form a band around the interior wet forests of higher elevations, and because they are often flat, they are under the most pressure for human settlement and agriculture. [1] [2] [3] [4]

Contents

Location and description

The primary islands in this ecoregion with drye forests are Guadeloupe, Dominica, Martinique, Saint Lucia, Saint Vincent and the Grenadines, and Grenada. The islands are part of a volcanic arc; their interiors generally have mountainous highlands that catch more rainfall, and thus support moist forests of the Windward Islands moist forests ecoregion. The largest area of dry forests on the islands is on Saint Lucia, where the dry forests ring the coast to about 3 km into the interior, where higher elevations grade into moist forest. The same pattern holds on the island of Grenada. On the islands of Saint Vincent and Martinique, the dry forests occur in the thin transition band between the coastal dry shrubland and the upland moist forest. [2]

Climate

The climate of the ecoregion is Tropical rainforest climate (Köppen climate classification (Af)). This climate is characterized as hot, humid, and having at least 60 mm of precipitation every month. [5] [6] Precipitation is slightly higher than that of the coasts, which range from 1,000 mm/year on Dominica to 1,600 mm/year on St. Vincent. [4]

Flora and fauna

The dry forest ecoregion is 35% closed canopy, 20% open forest, 15% built-up urban area, 10% in agricultural use and the remainder in shrubs or open water. [3] Characteristic tree species of the dry forest include those of genus Didymopanax and Charianthus . Mosses and ferns are common. The soils are often disturbed by past agricultural use. [4]

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<span class="mw-page-title-main">Southern Vietnam lowland dry forests</span> Ecoregion (WWF)

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<span class="mw-page-title-main">Eastern Java–Bali montane rain forests</span> Ecoregion in Eastern Java and Bali

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<span class="mw-page-title-main">Eastern Java–Bali rain forests</span> Ecoregion in Eastern Java and Bali

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.

<span class="mw-page-title-main">Western Java rain forests</span> Ecoregion in Java, Indonesia

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.

<span class="mw-page-title-main">Central American Atlantic moist forests</span>

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<span class="mw-page-title-main">Costa Rican seasonal moist forests</span> Ecoregion in Costa Rica and Nicaragua

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.

<span class="mw-page-title-main">Isthmian–Pacific moist forests</span>

The Isthmian–Pacific moist forests ecoregion covers the lowland tropical evergreen forests on the Pacific side of the central mountains of southern Costa Rica and western Panama. As the meeting zone between North and South American floral communities, the area is one of very high biodiversity. Much of the rainforest has, however, been cleared for subsistence agriculture and cattle grazing.

<span class="mw-page-title-main">Panamanian dry forests</span>

The Panamanian dry forests ecoregion covers low-lying dry forests around the coast of the Gulf of Panama on the Pacific Ocean side of Panama. It is one of the most heavily degraded ecoregions in Central America, having been heavily converted to agriculture. However, it is also important for its high biodiversity, high rates of endemic species, and its importance as a biological corridor between the moist forests inland and the mangroves on the coast.

<span class="mw-page-title-main">Miskito pine forests</span> Central American ecological zone

The Miskito pine forests ecoregion covers lowland pine forests and savanna along much of the Mosquito Coast in northeastern Nicaragua and southeastern Honduras. Pines are adapted to grow in the poor soil, relative to the surrounding moist forest, and repeated burning have left one species – the Caribbean pine – dominant. Although the ecoregion receives high levels of rain, the hard soils, repeated burning, and exposure to hurricanes have left expanses of 'pine savanna' and seasonal wetlands. The area is thinly settled by humans and there is little crop agriculture.

<span class="mw-page-title-main">Lesser Antilles mangroves</span> Ecoregion in the Lesser Antilles

The Lesser Antilles mangroves ecoregion covers the salt-water habitats along the coasts of the islands on the divide between the Caribbean Sea and the Atlantic Ocean. the included islands stretch from Anguilla in the north to the island of Grenada in the south. The species diversity of these small islands is less than that of the larger islands of the Greater Antilles with to the west, but endemism is high due to the relative isolation of the different islands.

<span class="mw-page-title-main">Leeward Islands moist forests</span> Forested ecoregion in the Caribbean Sea

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.

<span class="mw-page-title-main">Leeward Islands xeric scrub</span> Xeric shrubland ecoregion of the Leeward Islands

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.

<span class="mw-page-title-main">Trinidad and Tobago moist forests</span>

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.

<span class="mw-page-title-main">Windward Islands xeric scrub</span>

The Windward Islands xeric scrub ecoregion covers the relatively small areas of the Windward Islands that receive low levels of precipitation. The dry areas of these islands are the low coastal areas that receive less precipitation. Because the dry scrub land is generally flat, near the coast, and not as obviously in need of conservation as the upland forests of the interior, they are more vulnerable to human settlement and development for agriculture.

<span class="mw-page-title-main">Windward Islands moist forests</span>

The Windward Islands moist forests ecoregion covers forested, high-precipitation areas of the volcanic Windward Islands. The forested areas are mostly at higher elevations in the interior of the islands, surrounded by dry forests, dry shrubland, or mangroves on the flat coastal lowlands. Closed forest of this ecoregion cover the majority of the islands. Species diversity is very high.

References

  1. "Lesser Antillean dry forests". World Wildlife Federation.
  2. 1 2 "Map of Ecoregions 2017". Resolve, using WWF data.
  3. 1 2 "Lesser Antillean dry forests". Digital Observatory for Protected Areas.
  4. 1 2 3 "Windward Islands dry forests". The Encyclopedia of Earth.
  5. Kottek, M.; Grieser, J.; Beck, C.; Rudolf, B.; Rubel, F. (2006). "World Map of Koppen-Geiger Climate Classification Updated" (PDF). Gebrüder Borntraeger 2006. Retrieved September 14, 2019.
  6. "Dataset - Koppen climate classifications". World Bank. Retrieved September 14, 2019.