Sigmoid Growth Factors
13. Describe the factors that can influence the sigmoid growth curve of a population.
The factors that influence the sigmoid growth curve of a population are competition for resources (food and water availability, space for territories and nesting, and availability of mates), density dependent limiting factors (factors affecting large and small populations differently), density independent limiting factors (factors affecting all populations equally), and biotic (increase or decrease in natality and mortality) and abiotic factors (environmental changes/factors).
14. Compare top-down and Bottom-up limiting factors that can affect population growth.
Top-down factors: pressures applied by other organisms at higher trophic levels
Bottom-up factors:
The factors that influence the sigmoid growth curve of a population are competition for resources (food and water availability, space for territories and nesting, and availability of mates), density dependent limiting factors (factors affecting large and small populations differently), density independent limiting factors (factors affecting all populations equally), and biotic (increase or decrease in natality and mortality) and abiotic factors (environmental changes/factors).
14. Compare top-down and Bottom-up limiting factors that can affect population growth.
Top-down factors: pressures applied by other organisms at higher trophic levels
Bottom-up factors: