The
carrying capacity is the maximum amount of a species that the environment/area
can sustain with it’s given resources, indefinitely. Most populations have
growth rate that starts out slowly then enters a rapid phase of growth, and
then the population hits the carrying capacity so the growth levels off. In
most cases, the size of the population begins to fluctuate. This is normal, but
there are certain things that can cause much more drastic changes for the
population of that species. Some variables that end up causing changes for
populations are:
--births
--deaths
--immigration
--emigration
--competition
of other species
--predators
--decrease
in food
--diseases
Some random facts about carrying capacity
are:
--The
planet could support a lot more people that are living a simple rural village
life compared to people living an American suburban life.
--A
community that is degrading depends on using its community capital and is not
living sustainably.
--Reproductive
lag time is required when the birth rates need to decrease and death rates need
to increase.
Question:
Why
are carrying capacities different depending on the species? Why is it important
to have different carrying capacities.
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