The likely future prospect of the Sonoran Desert
Ecosystem is that it will continue to experience pressures from human growth.
Gradually animals will be pushed to isolated regions with less desert space.
This will cause population declines in wildlife for example in large mammal
predators like coytes or wolves who range larger spaces. If these predators
decline then the animals they hunt will increase in population causing an imbalance
in the food chain of the ecosystem. It also seems that native plants will be
replaced in large quantities near urban locations because exotic plants start
spreading outside of residential homes. Those invasive plants like shrubs or
trees start taking over and the Sonoran Desert is no longer a native plant
region. Those plants also cause fires easily and so in a place like the desert
where fire was unnatural it starts becoming more frequent. Fires will destroy remaining
natural plants ultimately pushing animals even farther away from their natural environments.
Another factor that may continue to hurt the Sonoran Desrt is water depletion from
underground. The extraction of water has damaged riparian habitats where fish
use to thrive. Conservation programs are trying to restore and conserve the environment
of the Sonoran Desert but the populations of cities like Phoenix keep growing and
surely that will continue to harm the ecosystems surrounding the city. Conservation
will help protect some regions and perhaps keep them around for many future years.
However, it seems it will be a tough challenge with increasing human
populations and territorial expansions of cities.
Graph showing projected population growth in Arizona http://www.fhwa.dot.gov/infrastructure/images/diaz03.gif |
http://urbanwildlandus.fatcow.com/SERDP%20page/SERDP%20poster%20pics/SERDP%203.jpg |
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