Lesson Objectives...
Analyze and interpret data to draw conclusions about how changes in resource availability affect populations in the short and long term.
Organisms, and populations of organisms, are dependent on their environmental interactions.
Organisms with similar requirements for food compete with each other for limited resources. A lack of access to these resources consequently constrains their growth and reproduction.
Growth of organisms and population increases are limited by access to resources.
It is normal for populations to fluctuate, depending on resource availability from year to year. Drastic changes to resource availability can cause unusual and unstable changes in populations.