Chapter 9 -- Sustaining Biodiversity: Saving Species and Ecosystem Services
Core Case Study
Question 1
1.
What ecosystem service do honeybees provide?
Question 2
2.
What is the concern regarding European honeybees?
9-1 What Role Do Humans Play in the Loss of Species and Ecosystem Services?
Question 3
3.
Define biological extinction.
Question 4
4.
Define mass extinction.
Question 5
5.
What do scientists consider as the normal background extinction rate? How many species does this equate to that would disappear naturally each year? (Read a few paragraphs down for this answer; it’s there.)
Question 6
6.
What do scientists estimate is the current annual rate of species extinction? How many species does this equate to that would disappear each year? Each day?
Question 7
7.
Define endangered species.
Question 8
8.
Define threatened species.
Question 9
9.
Differentiate between regional extinction and functional extinction (i.e. ecological extinction).
9-2 Why Should We Care About Sustaining Species and the Ecosystem Services They Provide?
Question 10
10.
Biologists use 3 major reasons for why we should work to prevent our activities from causing or hastening extinction of other species. What are they?
9-3 How Do Humans Accelerate Species Extinction and Degradation of Ecosystem Services?
Question 11
11.
Identify the components of the acronym HIPPCO.
Question 12
12.
What is the greatest threat to wild species?
Question 13
13.
Define habitat fragmentation.
Question 14
14.
True or False. All nonnative species are invasive. Explain your answer.
Question 15
15.
In 2-3 sentences, summarize where these invasive species came from, the problems they cause, and a proposed solution:
Kudzu vine and Kudzu bugs
Argentina fire ant
Burmese pythons
Question 16
16.
What is the best way to reduce threats from invasive species?
Question 17
17.
Pollution such as the use of pesticides can impact other species. Explain the impact of DDT on bald eagle populations.
Question 18
18.
How is climate change affecting polar bears?
Question 19
19.
Give 2 examples of animals that are poached and why they are poached.
Question 20
20.
70% of the world’s 10,000 known bird species are threatened. Songbird populations have declined sharply. What is the primary reason?
Question 21
21.
What are 2 reasons we should be concerned about the decline of bird species?
9-4 How Can We Sustain Wild Species and Their Ecosystem Services?
State the purpose and limitations of the following treaties/laws (you need to know and understand each of these).
Question 22
22.
1975 Convention on International Trade in Endangered Species (CITES):
Question 23
23.
Convention on Biological Diversity (CBD)
Question 24
24.
The U.S. Endangered Species Act of 1973
Question 25
25.
Read pages 210-211. List 4 ways that we can protect species.