Question

Allee effect can be best described by

• A. Population growth increases as population density increases, below a certain density
• B. Population growth increases as population density increases, above a certain density
• C. Population growth decreases as population density increases, above a certain density
• D. Population growth increases as population density increases, causing density to then decrease
• E. Population growth decreases as population density increases, causing density to then decrease

Answer 1

The correct option is A Population growth increases as population density increases, below a certain density

The Allee effect is a phenomenon which is characterized by a correlation between population size or density and the mean individual fitness of a population or species. It can result in critical population thresholds below which populations crash to extinction meaning there is increase in population growth as population density increases but below a threshold (certain density). Thus, the correct answer is option A.