Changes in Communities

Changes in Communities

1. 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

2. 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