Grasslands of the world Flashcards
1
Q
How much of the earth’s surface was covered by grasslands?
A
1/4 to 1/5 of the earth’s surface.
2
Q
What are the two categories of grasslands?
A
Temperate and Tropical
3
Q
Where are the tropical grasslands located?
A
Between the tropic of cancer and the tropic of Capricorn.
4
Q
What are the characteristics of tropical grasslands?
A
- Near equator
- Hot with wet and dry seasons
- African savannas: poor soil with little humus.
- Not a lot of humans due to poor crop land.
5
Q
What are the characteristics of temperate grasslands?
A
- Excessive roots
- Temperature extremes
- Precipitation 300-500mm
- Grazers
- Predators
- Insects
- Diversity and Synergisms
6
Q
What is a grassland type of the world?
A
Tropical
7
Q
What was the first cultivated forage in canada?
A
Alfalfa
8
Q
What percentage of angiosperms are animal pollinated?
A
87%
