Biodiversity Conservation

Question 1

How many species exist

Answer 1

around 8.7 million species

Question 2

how many eukaryotic species

Answer 2

1.2 million

Question 3

Eukaryotic organisms ______ cataloged

Answer 3

well

Question 4

prokaryotic diversity is ________ cataloged

Answer 4

not well

Question 5

Diversity has been ________ through time

Answer 5

increasing

Question 6

T or F: the system we have is not the most diverse system to exist on earth so far

Answer 6

F

Question 7

End permian extinction

Answer 7

95% of species disappear because of massive volcanic eruptions in Siberia

Question 8

End cretaceous extinction

Answer 8

dinosaurs and many other groups disappeared because of astroid impact

Question 9

Are extinction rates higher or lower than in the past?

Answer 9

higher

Question 10

conservation biology

Answer 10

the science and practice of conserving diversity

Question 11

key tenets of conservation biology

Answer 11

• many species in natural communities are the products of co-evolutionary processes
  -many ecological processes have thresholds below which they become discontinuous, chaotic, or suspended
• genetic and demographic processes have thresholds below which nonadaptive, random forces prevail over adaptive deterministic forces within populations

Question 12

normative postulates of conservation biology (value statements)

Answer 12

diversity is a good thing
ecological complexity is a good thing
evolution is a good thing
biotic diversity has intrinsic value

Question 13

key elements of conservation practice

Answer 13

habitat protection
reserve design, establishment, and management
artificial breeding and release programs
gene banks

Question 14

COSEWIC

Answer 14

committee on the status of endangered wildlife in Canada

Question 15

endangered species listing process in canada

Answer 15

identifiy and prioritize species
commission status reports
evaluation and status recommendation by expert committes and stakeholders
status recommendations ratified by federal minister of environment and listing under the specis at rsk act
environment canada prepares and lead implementation of recovery strategies
reassessment by COSEWIC every 10 year

Question 16

Extinct

Answer 16

a wildlife species that no longer exists

Question 17

extirpated

Answer 17

a wildlife species no longer existing in the wild in canada but occuring somewhere else

Question 18

endangered

Answer 18

a wildlife species facing imminent extirpation or extinction

Question 19

threatened

Answer 19

a wildlife species likely to become endangered if limiting factors are not reversed

Question 20

special concern

Answer 20

a wildlife species that may become a threatened or endangered species because of a combination of biological characteristics and identified threat