Answered: What do you think is the adaptive value…

What do you think is the adaptive value of shoaling behavior? How does "arriving in massive numbers" contribute to better chances of survival against an ensuing feast of predators?

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter16: Population Ecology

Section: Chapter Questions

Problem 3DID

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Concept explainers

Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.

Question

A sardine shoaling behavior shown below is observed in sardine fishing grounds in the country such as the Zamboanga Peninsula. Shoaling behavior happens when a massive number of sardines arrive to feed in coastal areas associated with high primary production due to upwelling. This massive number of arrivals also means a sardine feast for its predators such as tuna, barracuda, other piscivorous pelagic fish as well as sharks. What do you think is the adaptive value of shoaling behavior? How does "arriving in massive numbers" contribute to better chances of survival against an ensuing feast of predators?

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