Zusammenfassung der Ressource
Changes in Communities
- Changes that can make a poulation change in size
- Immigration
- Entering the population
- Emigration
- Leaving the poulation
- Birth rate
- Number of births , 1000
individuals in a given time
period
- Death rate
- Number of deaths , 1000
individuals in a given time
period
- Things that can limit a population growth
- Water
- When an animal does
not get enough water
they can not live
- Space
- If anmals do not have enough space they
can not live
- Climate
- Bad weather can kill animals
- Food
- When an animal does
not get enough food
they can not live