Areas that receive less than 25 cm of precipitation per year and extremely little to no vegetation are classified as deserts. This biome takes up one third of the earth's land surface.
Biotic Factors: Native Animal and Plant Species
Biotic Factors: Invasive Animal and Plant Species
- N.d. Photograph. GoogleWeb. 26 Oct 2013. <www.google.com>.
- "Desert." BluePlanetBiomes. BluePlanetBiomes. Web. 26 Oct 2013. <http://www.blueplanetbiomes.org/desert.htm>.
- Global Invasive Species Database. issg. Web. 26 Oct 2013. <http://www.issg.org/database/species/search.aspsts=sss&st=sss&fr=1&x=26&y=9&sn=&rn=&hci=4&ei=-1&lang=EN>.