Sunday, January 9, 2011

Succession-34°7′34″N 116°24′59″W

Primary Succession- In one desert there was a lot of Cyanophyta, and Scytonema javanicum started to decrease. Then Chlorophyta, Bacillariophyta and Phomidium increased. The biodiversity also increased as succession happened. Biomass of microalgae increased at first but decreased later in succession due to the abundance of lichens and mosses. The community building species was dominant for 42 since succession was so slow. The speed and how succession occurred was affected by water, vegetation coverage, terrain, time and the soil.

Secondary Succession- An example of secondary succession in deserts are desert fires. The Sawtooth fire near Yucca Valley, California  burned about 61,600 acres.

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