What ecological pattern is commonly observed in Cicadidae populations?

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Study for the Science Olympiad Entomology Exam. Dive into entomology with flashcards and multiple-choice questions. Each question comes with hints and explanations to help you ace your exam!

Multiple Choice

What ecological pattern is commonly observed in Cicadidae populations?

Explanation:
Cicadas show a striking pattern of mass, synchronized emergence. Many species spend years as underground nymphs and then emerge together in a brief, region-wide pulse as adults. This flooding of adults overwhelms predators—a strategy known as predator satiation—so enough individuals survive to mate and lay eggs. This timing-based, group-wide emergence is what sets cicadas apart, and it isn’t explained by random or year-round activity. The diurnal timing of activity is separate from this emergent pattern, which is best described by the synchronized arrival of adults.

Cicadas show a striking pattern of mass, synchronized emergence. Many species spend years as underground nymphs and then emerge together in a brief, region-wide pulse as adults. This flooding of adults overwhelms predators—a strategy known as predator satiation—so enough individuals survive to mate and lay eggs. This timing-based, group-wide emergence is what sets cicadas apart, and it isn’t explained by random or year-round activity. The diurnal timing of activity is separate from this emergent pattern, which is best described by the synchronized arrival of adults.

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