The Phenomenon of Cicada Predators: Numerical Response in Ecological Dynamics

What does the increase in densities of cicada predators during years of high cicada numbers exemplify?

a) Genetic response

b) Numerical response

c) Behavioral response

Answer:

b) Numerical response

The observed phenomenon of cicada predators' densities increasing significantly during years of high cicada numbers exemplifies a numerical response in ecological dynamics. This numerical response involves quantitative changes in population densities, specifically the proportional increase in the population of cicada predators in direct correlation to the surge in cicada numbers. This ecological interaction illustrates the intricate balance within ecosystems, showcasing how fluctuations in one species' population trigger a numerical response in its predators.

The phenomenon aligns with foundational principles of population ecology, emphasizing the interconnectedness of species within an ecosystem and the dynamic adjustments in population sizes as they respond to environmental factors. Overall, the numerical response of increased predator densities to elevated cicada numbers is a tangible manifestation of ecological relationships and population dynamics.