People and the Biosphere Flashcards
1
Q
Biome
A
Global-scale ecosystem such as tropical rainforest or temperate grassland
2
Q
Ecosystem
A
Biological community of interdependent factors
3
Q
Biotic factor
A
a living organism that shapes its environment eg animal/plant
4
Q
Abiotic factor
A
Non-living factor that shapes its environment eg water/rocks
5
Q
Where is tundra found?
A
- Far north
- Artic circle to 60-70N eg Canada
- not widespread in southern hemisphere
6
Q
Where is taiga found? (boreal/coniferous forest)
A
- Latitudes below tundra biome 50-70
- America
7
Q
Where is temperate deciduous forest found?
A
- 40-50 N and S of equator
- Eastern USA, UK, Europe
8
Q
Where is temperate grassland found?
A
- 30-40N AND S of equator away from coastal areas
- Central europe, central USA
9
Q
Where is desert found?
A
- 30 N AND S OF EQUATOR
- north africa, east usa, middle east
10
Q
Where is tropical rainforest found?
A
- Close to equator
- south-east asia, equitorial sa
11
Q
Where is the savanna found/tropical grassland?
A
- 15-30 N and S of equator
- India, central africa
12
Q
Where is Medierranean ecosystem found?
A
- 40-45 N
13
Q
Characteristics of tundra
A
- harsh cold winters, short summers
- treeless - too cold and not wet enough
- low precipitation
- nutrient poor soils
- lack of biodiversity
- animals are migratory
- soils are permanently frozen - permafrost
14
Q
Characteristics of taiga
A
- coniferous forest - drought resistant
- retain their leaves all yr to maximise photosynthesis
- 50cm/yr rainfall - longer growing season, more plants
- wolves, bears
15
Q
Characteristics of temperate deciduous forest
A
- moderate precipitation
- hot summers cold winters
- broad lead trees shed leaves to retain moisture in winter
