biotic factors and abiotic factors
Rising temperatures could make deserts an even more uncomfortable place to live than they are now. Precipitation will become even scarcer. Drinking water for 500 million people who live in deserts is either disappearing or becoming too salty as snowpacks and glaciers that feed desert rivers melt. And deserts will expand towards communities as evaporation increases and dust storms multiply.
- Deserts may lack water but they don’t lack life. Shrubs and plants have evolved to minimize water loss and effectively manage the little water they do get. Animal diversity is also high—especially among reptile species that are particularly well suited to hot, dry conditions.
As prey population initially decreases, predator population experiences an increase in population. This represents the predators ability to catch prey which give them the necessary energy to reproduce. As predator population decreases, prey population increases because there are less predators hunting them and they are consequently able to survive.
In the Mojave Desert, the Mountain Lion is the main predator of the Mule Deer. Mule Deer make up a significant part of the Mountain Lion's diet, between 60 and 80 percent, consequently, the predator in this relationship is very sensitive to changes in the Mule Deer population.
Mountain Lion, Mule Deer, Plant (forbs)