Biology and Impact of Predators

Question 1

What are the 2 feeding habits of predators?

Answer 1

1. Feeding Mechanisms
2. Host Range

Question 2

Types of Feeding Mechanisms.

Answer 2

1. Chewing Mouthparts
2. Piercing-sucking

Question 3

Types of host range

Answer 3

1. Monophagous
2. Oligophagous
3. Polyphagous

Question 4

Example of a monophagous insect predator and prey.

Answer 4

Vedelia Beetle, coccidae

Question 5

Example of an oligophagous insect predator and prey.

Answer 5

Syrphid flies, mites, ants

Question 6

Example of a polyphagous insect predator.

Answer 6

Praying mantis, green lacewing

Question 7

All insect orders are predatory except:

Answer 7

1. Protura
2. Embioptera
3. Zoraptera
4. Isoptera
5. Mallophaga
6. Anoplura
7. Siphonaptera
8. Homoptera

Question 8

This insect order comprises of primitive insects.

Answer 8

Protura

Question 9

This insect order is usually found in decomposing tree materials.

Answer 9

Embioptera

Question 10

These insect orders are usually found along with termites.

Answer 10

Zoraptera & Isoptera

Question 11

This insect order comprised of parasites such as lice and fleas.

Answer 11

Mallophaga, Anoplura, and Siphonaptera

Question 12

This refers to the term on how predators respond to a sequence of environmental cues to locate prey.

Answer 12

Searching ability

Question 13

The number of prey required depends upon the ff. factors:

Answer 13

1. Size of predator
2. Extent of its searching and other energy consuming activities
3. Size and nutritional quality of prey

Question 14

Ease with which prey can be found depends on:

Answer 14

• Predator’s searching efficiency
• Prey’s population size
• Prey’s spatial distribution
• Obstructions in habitat.