Question

What other kinds of cues might be reliable indicators for predator presence?

Answer 1

There are many indicators for predator presence. Some of them are:
Being able to spot predator marks like scratches or fur.
Being able to feel predator movements.
Echo-location For example, moths respond to the echo-location calls from their bat predators; moths drop to the ground once they hear the sound pulse from the bat.

Answer 2

Predator scents, warning cries, and marks are cues that might be reliable indicators for predator presence.

Further Explanation:

The change in a population can be decreased due to the gene flow and due to an increase in the number of predators. Thus, the genetic variation increases due to a decrease and increase in predators and food respectively. To determine the presence of predator is very necessary to safeguard them. There are many cues and signs which indicate the existence of predators. Some of them are:

• Marks of predators
• Scent of predators

Animal usually secrete hormone that helps in determining the presence of predator. Also, warning cries of predators indicates the existence of them. Movement of predators can easily sense by the individual. Predators' habitat can also give insight if they still live there or not. Markings on the surroundings can also help in determining the activity and presence.

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Answer Details:

Grade: High School  

Subject: Biology

Topic: Ecology

Keywords:

Predators, presence, cues, activity, sign, marks, scent, animal, cry, warning, hormone, decrease, increase, movement, genetic variation, habitat.