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Environmental Science > Setting conservation priorities > Flashcards

Setting conservation priorities Flashcards

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Biology 101 flashcards
1
Q

What is the IUCN

A

The International union for conservation of nature

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2
Q

What is the role of the IUCN

A

Coordinating global data on biodiversity conservation
Increasing understanding of the importance of biodiversity
Deploying nature based solutions to global challenges (climate change)

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3
Q

What is the IUCN red list

A

A way of categorising species according to the vulnerability or extinction

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4
Q

What are all the categories of the IUCN red list

A

 Extinct
extinct in the wild
critically endangered
endangered
vulnerable
near threatened
least concern
data deficient

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5
Q

What does extinct mean

A

 No known individuals remain

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6
Q

What does extinct in the wild mean

A

Only survive in captivity

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7
Q

What does critically endangered mean

A

Extremely high risk of extinction in the wild

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8
Q

What does endangered mean

A

High risk of extinction in the wild

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9
Q

What does vulnerable mean

A

 High risk of becoming endangered

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10
Q

What does near threatened mean

A

Likely to become endangered in the near future

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11
Q

What does least concern mean

A

Lowest risk of becoming endangered

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12
Q

What does data deficient mean

A

Insufficient information for the species to be categorised

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13
Q

What percentage of population decline over the previous 10 years or three generations will vulnerable species have

A

> 40%

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14
Q

What % population decline will make an endangered species

A

> 60%

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15
Q

What % population decline for a critically endangered population

A

> 80%

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16
Q

What area of habitat will a vulnerable population have

A

<2000km*2

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17
Q

What area of habitat will a endangered species have

A

<500km*2

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18
Q

What area of habitat will a critically endangered species have

A

<10km*2

19
Q

What number of area will a vulnerable population be found in

A

<10

20
Q

How many area can an endangered population be found

A

<5

21
Q

How many areas will a critically endangered species be found in

A

1

22
Q

How many mature adults will a vulnerable population have

A

10000

23
Q

How many mature adults will an endangered population have

A

2500

24
Q

How many mature adults will a critically endangered species have

A

250

25
Q

What’s the probability of extinction for a vulnerable population

A

Less than 10% in 100yr

26
Q

What is the probability of extinction for a endangered population

A

Less than 20% in 20yr/5 generations

27
Q

What is the probability of extinction for a critically endangered population

A

Less than 50% in 10yr or 3 generations

28
Q

Why might species in habitats under particular threat be categorised

A

Their status may indicate the status of the rest of the community

29
Q

What are EDGE species

A

Evolutionary
Distinct
Globally
Endangered

30
Q

What are EDGE species

A

Species with few close relatives often the only surviving member of their genus

31
Q

What are some examples of EDGE species

A

Secretary bird
Pygmy hippo

32
Q

What are endemic species

A

A species not found in any other area

33
Q

Why are endemic species at risk

A

If their is a local change and the local species dies out it can’t be found anywhere else

34
Q

What are some areas with endemic species

A

Galapagos
Madagascar
Seychelles
Borneo

35
Q

What are some endemic species

A

Aldabra giant tortoise
Gozo wall lizard
The lemur
The clouded leopards

36
Q

What is a keystone species

A

A species that has an important role in maintaining ecological structure

37
Q

What sort of things do keystone species do

A

Predation of dominant species
Provision of food
Seed dispersal
Creation of structural features

38
Q

How are African elephants a keystone species

A

Keep forest paths open
Spread seeds of trees
Keep water holes open and provide water and nutrients for animals and plants

39
Q

What are flagship species?

A

Species that have a high public profile

40
Q

Why are flagship species important

A

They can be used to raise money for the whole environment even and species that people aren’t likely to donate to

41
Q

What are some examples of flagship species?

A

Tigers
Elephants
Giant pandas
Orangutan

42
Q

What is the problem with a fragmented population

A

May produce populations that will each day out because they lack sufficient resources, or have a small gene pool leading to inbreeding

43
Q

What is the problem of a species that is found only in one location

A

Vulnerable to any change

44
Q

What is an example of a isolated population

A

Chimpanzees and gorillas are found in multiple countries apart from the pygmy chimpanzee is found in the forest of one country

Environmental Science (90 decks)

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