Question

population size and structure
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poison dart frogs live in the rainforest. they produce a poison by eating toxic fire ants. the only known predator is a snake, liophis epinephelus.
which is most likely a density - independent factor that affects the poison dart population in the rainforest?
○ clear cutting the rainforest
○ limited food source
○ susceptibility to disease
○ increase in population of liophis epinephelus
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Explanation:

Density - independent factors are environmental factors that affect population size regardless of population density. Clear - cutting the rainforest is a habitat - altering event that affects the poison dart frog population regardless of how many frogs there are. Limited food source, susceptibility to disease, and increase in predator population (L. epinephelus) are density - dependent factors as their impact depends on the number of individuals in the population (e.g., more frogs mean more competition for limited food, higher chance of disease spread among a larger group, and more frogs for the predator to eat if the predator population increases).

Answer:

clear cutting the rainforest