Population Dynamics And Natural Selection in Ecology Flashcards
Incidence
Frequency of new cases in a population.
Prevalence
Proportion of infected individuals at a time.
Reproductive Rate
Number of infections caused by one infected person.
Epidemiology
Study of disease prevalence and distribution.
SIR Model
Susceptible-Infected-Recovered model for disease spread.
SIS Model
Susceptible-Infected-Susceptible model without immunity.
Natural Selection
Process where organisms better adapted survive.
Population Ecology
Study of population dynamics over time.
Lotka-Volterra Equations
Mathematical model for predator-prey interactions.
Predator-Prey Cycle
Fluctuations in populations of predators and prey.
Bottom-Up Model
Population control driven by resource availability.
Top-Down Model
Population control driven by predation or disease.
Social Behaviour Model
Influence of social interactions on population dynamics.
Chronic Stress
Long-term stress affecting reproduction and health.
Hare-Lynx Dynamics
Fluctuations in snowshoe hare and lynx populations.
Food Supplementation
Adding food to test its effect on populations.
Predator Exclusion
Removing predators to observe population changes.
Population Density
Number of individuals per unit area.
Empirical Evidence
Data collected through observation and experiments.