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Flashcards in Human Impacts On Biodiversity Deck (17)
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1

What 4 types of ecosystem services are there?

- Supporting (nutrient cycling, primary production)
- Provisioning (food, water, fuel etc.)
- Regulating (flood, climate, disease and regulation)
- Cultural (aesthetic, spiritual, educational etc.)

2

What are the 7 truly negative impacts humans have on the land and it’s inhabitants

Land transformation
Land clearing
Forestry
Grazing
Intensification
Hunting
Fishing

3

Which types of habitat have been lost and gained?

Lost:
Forest, steppe/savannah/grassland, shurbland, desert/tundra/ice desert

4

What has happened to Madagascar’s wet tropical forest

Only 34% left

5

How is the global temperature controlled?

Partly heat heat from centre of planet
Mostly from radiation from sun

6

What is albedo?

The reflectivity of a surface
-snow/ice 45-85%
-uniform deciduous 20%
-tarmac 10%
-oceans/lakes 2-8%

7

What does partially clearing a forest do to albedo

Radiated energy trapped within clearings, reduces albedo

8

Which animals increased in the UK with the rising temp?

Dragonflies, bats, butterflies

9

How much is the global temp predicted to rise in the next 50 years

1.5-2 degrees

10

How much has the sea risen in the last 100 years

12cm

11

What are the future climate change possibilities

Expansion of deserts
Poleward advance of monsoon rains
Greater frequency of extreme events

12

In the future, how much land area will show shift in vegetation?

55%

13

What are the 3 direct exploitation’s humans impose on the environment

1. Bush meat
2. Fuel wood
3. Marine fisheries

14

How many mammals birds and reptiles are consumed in the Amazon per year

9.6-23.5 million

15

How much of the worlds population rely on biomass fuels

1/3rd

16

What is El Niño

A series of climatic changes in the movement of warm and cold oceanic waters in the equatorial Pacific region which affects global weather systems

17

What coincides with the Peruvian anchovy fishery collapse

El Niño