Sinú Valley Dry Forests Ecoregion (Colombia)

Sinú Valley Dry Forests Ecoregion (Colombia)

Mon, 11/19/2018 - 16:27
Posted in:

The Sinú Valley dry forests is an ecoregion in the north of Colombia. The region is known for its tremendous richness, in terms of biodiversity, due to the high number of species and level of endemism.

Sinú Valley Dry Forests

The Sinú Valley dry forests is an ecoregion in the north of Colombia. The region is known for its tremendous richness, in terms of biodiversity, due to the high number of species and level of endemism.

The Sinú Valley dry forests are located at the northwestern extreme of the Andes, near the Darien-Panama bridge and between the two major ecoregions: Chocó wet forests and Magdalena Medio rain forests.

Due to its location, the Sinú Valley region is a bridge, a genetic corridor, a contact zone and a center of endemism. It is also, strongly believed, a paleo-environment: an environment of a past geological age.

Because of the wetlands (lagoons, marshes, swamps and mangroves) near the coast as well as its location in the northernmost part of the continent, the valley is the place of arrival of many migratory species of birds of prey, waterfowl and songbirds during the northern winters.

The wide altitudinal gradient — from the upper peaks of the Paramillo, at 3.960 m (12,992 ft) to the low alluvial valley at 200 m (656 ft) and the mangroves at sea level — makes it possible for the region to have several types of ecosystems and forests in within a relatively small area.

The Sinú Valley has one of the most fertile soils in Colombia, due to the annual floods of the Sinú River, which together with a seasonal climate, has developed a rich and endemic flora within an ecosystem very abundant in wildlife. Moist forests and the Caribbean Sea to the north surround this seasonal dry region.

The rainfall is highly seasonal, with a dry period between January and March, and the rainy season between April and December, with a short dry period around June.

Today, the Sinú Valley is covered by grasslands for cattle ranching with introduced grass species like Bracchiaria spp. and indigenous grasses as Andropogon spp. Agriculture is mainly commercial today, with such crops as cotton, soybean, rice, papaya and watermelon.