Week 5 Part 1

Question 1

What is conservation biology

Answer 1

Integrative discipline that applies the principles of ecology to the protection of biodiversity

Question 2

What is biodiversity

Answer 2

Genetic diversity within a species

Question 3

Is landscape part of diversity

Answer 3

YES

Question 4

What is biodiversity

Answer 4

The diversity of important ecological entities that span multiple spatial scales from genes to species to communities

Question 5

What is the example of parrotfish

Answer 5

Eat the algae off coral reefs and help produce sand for our beach and we indirectly want to have a beach

Question 6

What are some of ecosystem services

Answer 6

Water purification
Generation and maintenace of soild
Pollination of crops
Climate regulation
Flood control
Source of food like fish
Source of medcine

Question 7

What are seagrass meadows good for

Answer 7

Help remove dangerous bacteria from ocean waters

Question 8

What else what noticed for sea grass

Answer 8

Emotional health and spiritually go to natural ecosystems for solace wonder and insight

Question 9

What is the current extinction rate for mammals and birs

Answer 9

1 per year

Question 10

What do estimates of current extinction rates rely on

Answer 10

The species area relationship
Changes in the threat status of species shift from endangered to critically endangered
Rates of population decline or range contraction of common species

Question 11

What did Alwyn Gentry

Answer 11

He mapped plant diversity in central and south america and wouldnt be supprised when he came back years later to see species missing he lost 1,000 endemic species

Question 12

Why are rates of extinction diffcult to measure

Answer 12

because the number of species on earth is currently unknown

Question 13

What are used as background rates

Answer 13

Exction rates esitmiated from the fossil record

Question 14

What is the background rate for mammals and birds

Answer 14

One species every 200 years

Question 15

What is extinction rate

Answer 15

Mammals and birds have a highest extinction rate

Question 16

What leads to change in communities

Answer 16

50% or more of the frugivores and nectarviores probably led to change in the island plant communites for example plants need to be dispperes which are frugivores and then go on unraveling and loss of biodiversity

Question 17

What create a greater effect on the removal

Answer 17

The stronger the interacations of a species in the food web

Question 18

What are the primary threats to biodiversity

Answer 18

1. Habitat loss
2. Overexplotiation
3. Pollution
4. Disease
5. Invasice species
6. Climate change

Question 19

What is the example of the passenger pigeon

Answer 19

Passenger pigeon was one of the most abundant bird on earth so it was easy to hunt because of all this open space due to habitat loss of the chesnut tree

Question 20

What is extinction vortex

Answer 20

A cyclic chain of events causes a small population to decline even further and become ever more vulnerable to processes that lead to extinction

Question 21

What is the habitat loss

Answer 21

Conversion of an ecosystem to another use

Question 22

What is habitat framentation

Answer 22

Breaking up continuous haibitat into patches amid a human-dominated landscape

Question 23

What is habitat degradation

Answer 23

Changes that reduce quality of the habitat for many but not all species

Question 24

What is overexplortation

Answer 24

the harvest of wild organisms at a rate that exceeds their replacement, can also lead to loss
of diversity.

Question 25

What is the cod example of overexplortation

Answer 25

The large fish of cod decrease and not sure if it will recover the large fish were caught and now the sizes are shrinking

Question 26

What is another example of overxploitation

Answer 26

Poaching

Question 27

What causes invasive species

Answer 27

Usually transportation and shipping

Question 28

What can we see with pollution in species

Answer 28

Bio amplification predator eats prey and the more it eats with a longer live span the more toxic it will become PCB

Question 29

What causes extinction through disease

Answer 29

Small population dont have genetic variation to survive

Question 30

How do you see exitinction through climate crisis

Answer 30

Extinction of entire ecosystems communities on ecosystem are changing

Question 31

How can you find a successful management

Answer 31

Involve working with farmers, fishers, landowners tourists artist

Question 32

What is conservation biology

Answer 32

The scientific study of biodiversity how human activities impact it and how to maintain it and prevent its loss