Q4.15. When two salamander species, the red-backed salamander and the valley-and-ridgesalamander, occur without the other present, their jaw structures are identical, and theyconsume the same prey. However, when the two species co-occur, the red-backed salamanderhas a slower-closing, stronger jaw, while the valley-and-ridge salamander has a faster-closing,smaller jaw, and the two species consume prey of different sizes. Which of the following issuggested by these observations?Competitive exclusionPreemptive competitionA trade-off between growing fast and competing wellCharacter displacement

Answered: Image /qna-images/answer/63a38956-29ab-436d-8d38-e8e337a7a557.jpg

Answered: prey. However, when the two species…

prey. However, when the two species co-occur, the red- ng, stronger jaw, while the valley-and-ridge salamander e two species consume prey of different sizes. Which of e observations? usion

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter44: Population Ecology

Section: Chapter Questions

Problem 1CT: Think back to Section 44.6. When researchers moved guppies from populations preyed on by cichlids to...

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Concept explainers

Ecological Interactions

The study of the ecological interactions between living beings and their physical environment, including humans, is ecology. It aims to understand the crucial links between plants and animals and the world around them. Ecology also gives knowledge on the advantages of ecosystems and how we may use Earth resources to ensure that future generations have a healthy environment.

Question

Q4.15. When two salamander species, the red-backed salamander and the valley-and-ridge
salamander, occur without the other present, their jaw structures are identical, and they
consume the same prey. However, when the two species co-occur, the red-backed salamander
has a slower-closing, stronger jaw, while the valley-and-ridge salamander has a faster-closing,
smaller jaw, and the two species consume prey of different sizes. Which of the following is
suggested by these observations?
Competitive exclusion
Preemptive competition
A trade-off between growing fast and competing well
Character displacement

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