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• Periodically, they are subject to environmental instability and individuals are then under the pressure of natural
• Population growth:
Growth rate is dependent on the number of individuals born and the number of individuals that die each year
• What factors that regulate population growth?
E Resource limitation - resources (e.g. food, space, etc) are limited in nature, so organisms that require these resources
are also limited.
Disturbances - small (e.g. fire) and large-scale (e.g. hurricane) environmental disturbances can severely affect
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This document was uploaded on 03/27/2014 for the course BIOLOGY Bio 2 at Timber Creek High.
- Fall '09