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Changes on a population
- Births and Deaths
Births rate: number of
births Death rates:
number of deaths
- Immigration
means moving
into a population
- Emigration means
leaving a population
- Emigration means
leaving a population
- There are some
limiting factors the
causes a
population to stop
growing or
decrease
- changes in climate such as
temperature and the amount of
rainfall. For example if there is a cold
spring season these can kill the
young species.
- CLIMATE
- CLIMATE
- Space
- If ther is not enough
room for all the
population species can
not reproduce causing
the population to
decreas
- If ther is not enough
room for all the
population species can
not reproduce causing
the population to
decreas
- Food and Water
- When water and food
starts to decrease
around a population
animal will need to
migrate or some of
them can even dye
- When water and food
starts to decrease
around a population
animal will need to
migrate or some of
them can even dye
- changes in climate such as
temperature and the amount of
rainfall. For example if there is a cold
spring season these can kill the
young species.
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