What allows harmless species to survive by mimicking harmful ones?

Prepare for ASU BIO 345 Evolution Exam 2. Utilize flashcards and multiple choice questions with explanations. Enhance your understanding and increase your chances of success!

The concept of Batesian mimicry is critical in understanding how certain species can enhance their survival by imitating the appearance of more harmful or unpalatable species. In Batesian mimicry, a harmless species evolves to resemble a harmful species in order to deter potential predators. Predators, having learned to avoid the unpleasant experience associated with the harmful species, are more likely to also avoid the mimic, even though it poses no real threat.

This form of mimicry relies on the selective pressure exerted by the presence of the harmful species. The survival advantage is significant; the mimic benefits from the predator's learned avoidance behavior, which increases its chances of survival and reproduction. Over time, natural selection favors individuals within the harmless species that closely resemble the harmful one, thereby reinforcing this mimicry.

This phenomenon differs from other concepts, such as camouflage, which involves blending into the environment rather than mimicking another species. While natural selection is the broader mechanism driving evolutionary changes, Batesian mimicry specifically describes the strategy employed by harmless species to evade predation through deception. Coloration, while related, does not fully capture the interactive and learned aspects of predator-prey dynamics involved in Batesian mimicry. Thus, the most accurate concept that explains this survival strategy in

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy