The Lara–Falcón dry forests (NT0219) is an ecoregion that extends inland from the Caribbean coast of northwestern Venezuela.
To the east and west the dry forests of the hilly region transition into xeric shrublands.
There are several endemic bird species including the vulnerable yellow-shouldered amazon, in demand as a pet.
There are few protected areas.
Despite the relatively infertile soils, a large part of the ecoregion has been converted to farmland or pasturage.
The Lara–Falcón dry forests ecoregion contains the Sierra de San Luis, the most eastern part of the Sierra de Falcón.
In the south it reaches the Sierra de Aroa.
The mountains, valleys and plains have elevations of 100–1,300 metres (330–4,270 ft) above sea level.
There are varied microclimates at different elevations.
Soils are relatively infertile ultisols and oxisols.
Major rivers include the Hueque, Tocuyo and Aroa.[1]
Climate
Mean temperatures is 27–28 °C (81–82 °F).
Annual rainfall is 300–1,000 millimetres (12–39 in).[1]
At a sample location at coordinates 10°45′N69°15′W / 10.75°N 69.25°W / 10.75; -69.25 the Köppen climate classification is "Aw": equatorial, winter dry.[4]
Mean temperatures at this location range from 24.5 °C (76.1 °F) in January to 26.8 °C (80.2 °F) in September.
Total annual rainfall varies considerably from one year to another, but averages about 850 millimetres (33 in).
Monthly rainfall varies from 8.9 millimetres (0.35 in) in February to 129.3 millimetres (5.09 in) in July.[4]
Ecology
The Lara–Falcón dry forests ecoregion is in the neotropical realm, in the tropical and subtropical dry broadleaf forests biome.[2]
At a global level, tropical dry forests are the third most critically endangered biome. 48.5% of the biome has been cleared and only 7.6% is protected.[5]
Flora
Cueva de la Quebrada del Toro National Park
The vegetation is adapted to the dry climate and includes dense deciduous dry forest and thorn forest with cacti, mesquite trees and spiny shrubs.
Small patches of seasonal evergreen woodland are found along rivers and on hilltops.[2]
The varied microclimates support a variety of types of vegetation including seasonal evergreen lowland forest in the southeast, similar to that found in the Cordillera de la Costa montane forests, dry deciduous lowland forest and submontane forest.[1]
The upper slopes and summits of the Sierra San Luis contain dense, medium height cloud forests, with two strata of trees and a dense understory.[6]
The dry deciduous forests of the Lara–Falcon hills are fairly open, 8–15 metres (26–49 ft) high, and have dense undergrowth.
The main flora are Handroanthus billbergii, Roseodendron chryseum (araguán), Bulnesia arborea (Maracaibo lignum vitae), Bourreria cumanensis, Caesalpinia coriaria (divi-divi), Pereskia guamacho (leafy cactus) and Prosopis juliflora (mesquite).[7]
The World Wildlife Fund gives the ecoregion the status of "Critical/Endangered".
The habitat has badly damaged by farming and grazing, particularly the north and center of the region.
The vulnerable yellow-shouldered amazon is illegally collected for sale as a pet.[1]
As of 2002 of the 17,447.4 square kilometres (6,736.5 sq mi) in the ecoregion, 6,074.1 square kilometres (2,345.2 sq mi) or 34.8% had natural cover or extractive land use, while the remainder had been converted to agricultural land, including pasturage.[9]
A 2006 book stated that of the 17,563.25 square kilometres (6,781.21 sq mi) of the ecoregion, 64.6% of the habitat had been transformed by human activity.
Only 8.1% or 1,427.3 square kilometres (551.1 sq mi) was protected.[10]
The 8,500 hectares (21,000 acres) Cueva de la Quebrada del Toro National Park protects the portion of the ecoregion in the Sierra de Falcón, including a dramatic cave.[1]
The Juan Crisóstomo Falcón National Park also protects part of the region.[2]
