A: The biotic factors of the desert biome include the living organisms, such as plants and animals, that call the desert home, while abiotic factors include the elements and resources to support life, such as sunlight, water and air.
Finger cramps are also caused by fingers that feel like they need to be cracked or popped due to excess pressure in the joints. In other cases, a more serious disease may cause finger cramping, such as osteoarthritis or even vitamin deficiencies.
Possible Causes. 1  Carpel Tunnel Syndrome â If you have carpel tunnel syndrome, there is a nerve that is nicked in your wrist that passes through your carpel tunnel. 2  This is commonly done to help relieve pressure associated with the median nerve. 3  In doing so, it often leads to twitching of the thumb or index finger. Side Effects â Certain drugs such as diuretics, corticosteroids and estrogen are often causes of twitching in your fingers. 2  Caffeine â It is reported that too much caffeine or withdrawals of caffeine can cause muscle twitching. 3  This includes coffee, soda and chocolate.