Xerophytic Shrubland

Xerophytic Shrubland

The xerophytic shrubland or semi-desert is made by scrubbing low rainfall areas ecosystem, therefore predominates xeric vegetation.

The WWF (World Wildlife Fund) considers it a biome called deserts and xeric shrubland, and it's grouped together with desert ecosystems.

Vegetation is commonly as a hawthorn way, such as cacti and bromeliads, scrubby bushes, deciduous trees and semi desert grassland.

The WWF bring together the biome called Deserts & Xeric Shrubland both deserts and semi-deserts.

These ones are where woody plants or shrubs are developed, that are characteristic of these regions: Above all, this plants have evolved to minimize the loss of water.

The fauna is equally well adapted and is very biodiverse. This biological richness is seen mainly in the Namib-Karoo Desert, Chihuahua, Mexico and the Xeric scrublands of Australia.

The xeric shrubland are located in the arid and semi-arid country; occupy half of the country. They are important because they are the center of origin and evolution of many groups of plants, especially cacti.

The Xeric scrublands is defined as an ecosystem in which the rainfall is very limited, usually less than 250 mm, and this restricts to a greater or lesser degree the flourishing of life.

Arid ecosystems of Mexico are low productivity due to low rainfall and extreme temperature variations (up to 20 ° of variation).

In general Scrubs can be rocky or sandy, and vegetation covers a relatively small proportion of the soil, so it is always exposed to the sun. In these areas there is a large number of endemic species (about 60% of the species).

ABIOTIC FACTORS:

•Dry Air

•The low humidity receives comes from its low rainfall.

•The pH of the soil usually varies from 6 to 8.5.

•Its annual temperature varies from 12 to 26 ° C.

BIOTIC FACTORS:

•Chollas

•Sahuaro or Cardón

•Road Runner

•Kangaroo rats

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