Are we over carrying capacity?. Population density/consumption patterns. Quality of life issues. Impact on landscapes & resources Lake Chad. What is “overpopulation”?. how does it occur?. Outline. Basic Dynamics of Population Growth Exponential vs. Arithmetic Growth
how does it occur?
Many small offspring
Little parental care
Little investment in individual offspring.
Adapted to unstable environment.
Regulated mainly by extrinsic factors.
Low trophic levelMalthusian Strategies
Fewer large offspring
High parental care and protection.
High investment in individual offspring.
Adapted to stable environment.
Later stages of succession.
Regulated mainly by intrinsic factors.
High trophic levelLogistic Strategies