Desert food web with decomposers

Food web in the desert


  • Cactus, gourd plants, shrubs, date palm and also grasses.

Primary Consumer

  • Butterfly, camels, gazelles etc.

Secondary Consumer

  • Lizard

Tertiary Consumer

  • Snake


  • Dung beetle which is a insect that feeds on animal feces.
  • Fly that feeds over decaying matter and animal remains.
  • Millipede feeds over the decaying plants.
  • Saharan silver ants that feeds over the animal remains.

Nature of Desert Region

Deserts are usually found on the western margin of the continent between 20° and 30° N and S latitudes.

The annual rainfall is less than 25 cm.

Due to lack of rainfall and arid conditions, these areas do not possess any vegetation but have a special vegetation type called Xerophytes.

The soil is sandy and saline, the deserts are agriculturally not fit. Drought-resistant thorny shrubs and bushes, palms are found in deserts.

Tribal people gather food and practice hunting. They move frequently in search of pastures and move their temporary settlements.

Transportation is done by camels. Reptiles like snakes, lizards, scorpions are commonly found.

Oasis is fertile fresh water, found in deserts and semi-arid regions. These are fed by springs.

Dates, figs, palms, citrus fruits, maize etc are cultivated near oases.


* * All the Notes in this blog, are referred from Tamil Nadu State Board Books and Samacheer Kalvi Books. Kindly check with the original Tamil Nadu state board books and Ncert Books.
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