Threats to Biodiversity

Question 1

What are some indirect threats that are resulting in a loss of biodiversity?

Answer 1

agriculture, commercial, and roads

Question 2

What are some direct threats that are resulting in a loss of biodiversity?

Answer 2

invasive species, climate change, and habitat loss

Question 3

The equation to figure out the impact of population is I=PAT, what does P, A , and T stand for?

Answer 3

P: number of people
A: average income
T: level of technology

Question 4

What term is described as the interconnection of resource and labor market?

Answer 4

Globalization

Question 5

What term is described as an area with high biological diversity that is threatened by human activity?

Answer 5

biodiversity hotspot

Question 6

What is the primary cause of biodiversity reduction?

Answer 6

habitat destruction

Question 7

What term is described as when more carbon is being absorbed than produced?

Answer 7

carbon sink

Question 8

What type of destruction is happening to corals?

Answer 8

global warming, acidification, tropical storms, pollution, and over harvesting

Question 9

What term is described as the process of large continuous area of habitat reduction in a area that is subdivided?

Answer 9

habitat fragmentation

Question 10

What does fragmentation result in?

Answer 10

increased edge habitat, center habitat w/ smaller buffer from edge, and fragments host smaller populations

Question 11

What is the term that is described as plastic debris broken down by waves and light

Answer 11

microplastic

Question 12

What term is described as the transfer of toxins in which the concentration increases in organisms higher up in the food chain?

Answer 12

biomagnification

Question 13

What are the effects of acid rain?

Answer 13

lowers pH of soil and water ways, and lowers microbial activity

Question 14

What are some ways in which we have negatively altered the planet?

Answer 14

cultural eutrophication, oil spills, nuclear waste

Question 15

Explain the Global Green House

Answer 15

When heat is trapped by incoming energy close to the earths surface by the earth’s atmosphere, then creates this “green house effect” by making it really warm on the planet from the trapped gasses.

Question 16

Temperature ________ have mirrored CO2 ____________.

Answer 16

increases; increases

Question 17

How can historical carbon and temperature be estimated?

Answer 17

by natural archives such as; ice scores, coral skeletons, and tree rings

Question 18

There are some shifting distributions happening, what could they look like?

Answer 18

Marine species predicted to move away from poles, and the migration south with slow or even stop

Question 19

In 2100 there are predictions of acidification to happen, what will be a result of this?

Answer 19

The pH of water will be below 8, meaning that there will be fewer carbonate ions, resulting in fewer marine calcifiers which will result in a decrease in food for some and less carbon.

Question 20

What are some examples of over exploitation?

Answer 20

advanced techonology with capturing (trawl nets), bush meat crisis, and wildlife trade

Question 21

What is an example of a wildlife trade?

Answer 21

CITES; Convention on International Trade in Endangered Species. They monitor/manage/ and regulate the trade of about 39,000 species

Question 22

Describe in your own words what an invasive species is.

Answer 22

An invasive species is an organism that is present in an area that is not native that cause great harm to the ecosystem it is in

Question 23

What are some threats posed when it comes to invasive species?

Answer 23

competition, predation, parasitism, altered ecosystems

Question 24

What term is described as hybrids between rare and common species resulting in the loss of unique genotypes within the rare species?

Answer 24

genetic swamping

Question 25

Describe zoonosis

Answer 25

a disease which can be presented to human by animal