Types of Ecosystems
There are many types of ecosystems on earth.
Major classes of relatively contained ecosystems are called Biomes.
There are 3 Major classes of ecosystems
Relatively small in area ~ 1.8% of earth's surface
Support many species of life including fish, amphibians, insects and plants.
Base of food-web is found in freshwater Plankton (small microscopic organisms)
Many & diverse types of ecosystems. There are seven major types.
Location usually dependent on the latitude of the area, and amount of precipitation
types & locations of biomes
- Tropical Rain Forest
Precipitation - 250cm/year
Little temp. variation/abundant moisture
Contains more species than other biomes.
tropical rain forest
Open, widely spaced trees, seasonal rainfall
Parts of Africa, South America & Australia
Dry, sparce vegetation; scattered grasses
Parts of Africa, Asia, Australia, North America
- Temperate Grasslands
Rich soil; tall dense grasses
Central North America; Central Asia
- Deciduous forests
Warm summers, cool winters
Europe; NE United States;Eastern Canada
- Coniferous forest:
Short growing season, cold winters.
Northern Asia;Northern North America
Open; wind swept; dry; ground always frozen
Far northern Asia; Northern North America
Very large amount of Earth is covered by ocean (~75%)
40% of all photosynthesis occurs in oceans.
3 types of oceanic ecosystems
Shallow ocean waters
Deep ocean water
Deep ocean surface.
Photosynthetic plankton is base of food chain.
Only occurs in Deep ocean surface & Shallow ocean ecosystems
No photosynthesis can occur in deep ocean because light cannot penetrate deeply into
Updated May 20, 2002