Saturday, January 1, 2011

Limiting Factors

Density-dependent:
  • Overcrowding of coyotes will lead to the overhunting of smaller mammals (rabbits, prairie dogs) and eventually the starvation of coyotes, leading to a decline of population. This decline of coyote population will lead to the rise of the small mammal population, and the cycle starts again.
  • Diseases spread much faster in denser populations such as that of the field mouse when compared to the population of hawks or other solitary, low density animals.
Density-independent:
  • Natural disasters such as prairie fires will thin out populations, regardless of the population density.
  • Human interactions, such as the damming of the Kansas River or the over-hunting of the rattlesnake population, will effect the population regardless of the density before the human effects took place.

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