Desert ecosystem is the sum of the interactions between both biotic and abiotic processes in arid regions, and it includes the interactions of plant, animal and bacterial populations in a desert habitat, ecosystem and community.
definition
Adaptations in desert ecosystem
Organisms create adaptable situations around them on the basis of their needs, called as adaptation.
Plants living in desert reduces leaves to spines, to stop transpirational loss of water (e.g., kalabanda), store water in the stem, called as succulent stems.
Desert plants are called as xerophytes.
Some desert plants show stone like swollen leaves to reduce water loss. E.g., pebble plants.
Desert adaptations of animals-
Hump - stores fat for later use Long eye lash - protects from sand Voluntarily closing nostrils - protects from sand Long legs - keeps body away from hot ground
The side-winder adder snake crawl sideways to keep body cool.
Animals swim through the sand to escape the heat. E.g., golden mole rat.
Some animals show physiological changes to adapt with desert environment. E.g., kangaroo rat (synthesises water through digestion)