Population Ecology: Exponential and Logistic Models

EXAM 3

Population Ecology

Study of population size changes over time.

Population Genetics

Focus on genetic changes in populations.

Exponential Growth

Population growth in unlimited resources environment.

Logistic Growth

Population growth with resource limitations.

Carrying Capacity (K)

Maximum population size supported by environment.

Instantaneous Growth Rate (r)

Rate of growth per individual (b - d).

Exponential Growth Equation

(ΔN/Δt) = rN describes population growth.

Density Dependence

Population growth affected by population density.

Conservation Biology

Field focused on population monitoring and management.

Population Size (N)

Current number of individuals in a population.

Rate of Growth (r)

Difference between birth rate and death rate.

Sigmoid Growth

Growth pattern with initial rapid increase then stabilization.

Equilibrium

State where population size balances with resources.

Resource Limitation

Factors that restrict population growth.

Population Monitoring

Tracking changes in population elements over time.

Fluctuations Around K

Population variations around carrying capacity.

Relative Growth Rate (rrel)

Growth rate considering population size influence.

Case Study

Specific example used to illustrate concepts.

Environmental Change

Alterations affecting carrying capacity over time.

Birth Probability (b)

Likelihood of individuals reproducing.

Death Probability (d)

Likelihood of individuals dying.

Population Dynamics

Study of how populations change over time.

Ecological Impact

Effects of population changes on ecosystems.

Population Decline

Reduction in population size over time.