JD L8

Question 1

Conservation biology is used for what?

Answer 1

To address the loss of biological diversity

Question 2

What is ecological restoration?

Answer 2

The process of assisting the recovery of an ecosystem that has been degraded, damaged or destroyed

Question 3

Ecological restoration can be?

Answer 3

Top-down or bottom-up

Question 4

Example of an agent of change

Answer 4

An introduced species which becomes established in natural or semi-natural ecosystem or habitat

Question 5

What is biological control

Answer 5

An environmentally sound and effective means of reducing it mitigating pests and pest effects through the use of natural enemies

Question 6

What is enemy release hypothesis

Answer 6

Invasive species on introduction to a new region experience a decrease in regulation by natural enemies resulting in a rapid increase in distribution and abundance

Question 7

Problem of physical removal of Japanese knotweed

Answer 7

Reproduction by fragmentation

Question 8

Chemical control of Japanese knotweed

Answer 8

By systemic herbicide glyphosate

Question 9

Biocontrol of Japanese knotweed

Answer 9

By specialist herbivore- knotweed psyllid Aphalara itadori