Human populations

Human populations

1. Carrying capacity; the maximum number of organisms a particular enviroment can support during the harshest part of the year without damage to that enviroment

2. Survival curves; keep track of the fate of any given birth cohort

   • Type 1; applies to species that have a high survival rate of the young, live out most of their expected lifespan, and die in old age
   • Type 2; applies to species that have a relatively constant death rate throughout theor lifespan. Death is often from predatation or diesease
   • Type 3; is found in species that have many young, most of which die very early in their life