Lecture 7: Invasion Control

Question 1

What are three ways to help prevent invasion

Answer 1

Monitoring, Education, Legislation

Question 2

Three ways to control invasive plants?

Answer 2

By hand, herbicides, conservation grazing

Question 3

What are some cons of removing disturbances by hand?

Answer 3

time, physical, $, small areas, causes more disturbance

Question 4

Benefits and downsides of herbicides

Answer 4

cheap/easy
all other plants (pre/post monitoring)

Question 5

What is conservation grazing

Answer 5

use of livestock to clean up land by eating

Question 6

What are the downsides to using pesticides to control invasive animals

Answer 6

can lead to weakened immune systems or predators,

Question 7

When are pesticides good to use

Answer 7

have specific target and do not harm other organisms

Question 8

What do gene drives do

Answer 8

insert genetic modification + gene drive to spread unfavorable trait quickly (ex: only male mosquito)

Question 9

Biocontrol?

Answer 9

introduced enemy from native range to control population

Question 10

Trophic cascade

Answer 10

indirect interaction (predators limit density of prey–> enhances next level)

Question 11

What are some benefits of invasive species

Answer 11

biofuel production, land reclamation, nesting