Unit 2: Conservation Ecology

Question 1

Loss or alteration of natural habitats, pollution, and over-exploitation of resources are all factors that can ______

Answer 1

Decrease the Earth’s biodiversity

Question 2

What have human-driven factors done to other species?

Answer 2

Caused species to become extinct, endangered or threatened.

Question 3

What has been done to help protect and preserve biodiversity?

Answer 3

Creation of laws and executive orders

Question 4

What are invasive species? How are they transported?

Answer 4

Non-native species that have a negative impact on native species. Human interactions are what bring invasive species to other habitats.

Question 5

Invasive species decrease biodiversity by what 4 things?

Answer 5

Out-competing native species for resources, reproducing quickly, having little or no predators, and carrying harmful diseases.

Question 6

The process of recovery of an ecosystem after it goes through a major disturbance

Answer 6

Succession

Question 7

Difference between primary and secondary succession?

Answer 7

Primary is when pioneer specie must turns rocks into soil, and secondary occurs where soil already exists.

Question 8

Which type of succession is longer?

Answer 8

Primary because it has to create from scratch

Question 9

What is it called when succession finishes and ecosystems return?

Answer 9

Climax communties

Question 10

The purposeful release of captive or wild species into an area where they had been eliminated is called ______

Answer 10

Reintroduction

Question 11

Many species have experienced _______ due to habitat loss, alteration, human activity, hunting, poaching, and over-exploitation of natural resources.

Answer 11

A decline in population size

Question 12

_______ increase the population size of species so they can be released back into the wild.

Answer 12

Captive breeding programs