Habitat Loss & Fragmentation Flashcards
1
Q
What is the main culprit for biodiversity loss?
A
Habitat loss.
2
Q
What factors effect coral reefs?
A
- Euttrophication
- Water pollution
- Destructive fishing practices
- Coral mining
- Careless tourism.
3
Q
\what features cause coral bleaching?
A
- Increasing sea temperatures
- High light intensity
- Low salinity
- Pollutants.
4
Q
Describe habitat destruction of mangroves.
A
Cleared for commercial shrimp and prawn hatcheries.
5
Q
Describe habitat destruction of peat swamps.
A
Threats:
- fires
- clearing agriculture
- forestry.
6
Q
What are the causes of tropical deforestation?
A
- Fuelwood collection
- Agriculture
- Plantations
- Logging
- Slash and burn.
7
Q
Define habitat fragmentation.
A
The process whereby a large, continuous area of habitat is both reduced in an area and divided into two or more fragments.
8
Q
What are the effects of habitat fragmentation?
A
- Division of population and restricted gene flow
- Local extinctions.
9
Q
What is the extinction debt in the context of ecosystem degradation?
A
The delayed loss in species due to fragmentation.
