Changes on a population

Changes on a population

1. Births and Deaths Births rate: number of births Death rates: number of deaths

2. Immigration means moving into a population

   • Emigration means leaving a population

3. 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
   • Space
     • 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

Bilder und Dateien der Mindmap