what are biomes? small units of the biosphere areas that have plants and animals that are well...
Post on 05-Jan-2016
212 Views
Preview:
TRANSCRIPT
What are biomes?
Small units of the biosphere Areas that have plants and animals that are
well adapted to the region's physical environment
Two distinction groups: Terrestrial Aquatic
Terrestrial Biomes
The areas of land in the world. The plants and animals living in these areas
are determined by the conditions of each biome.
Terrestrial biomes are land regions with similar: Climate
temperature,precipitation and sunlight
Terrestrial vs. Aquatic
Aquatic Biomes
The areas of water in the world. The plants and animals living in these areas
are determined by the conditions of each biome.
Aquatic biomes are areas of water with similar: Salinity levels Light penetration Nutrients present
Terrestrial vs. Aquatic
How many biomes are there?
There is no completely correct answer.
We will study five:1. Desert
2. Forest
3. Grassland
4. Tundra
5. Aquatic
There are 4 types of terrestrial biomes:1. Desert
2. Forest
3. Grassland
4. Tundra
1. Desert (Terrestrial)
Less than 50cm of rain per year
Covers about 20% of the earth’s surface
Types: Hot and dry Also: semiarid, coastal and
cold deserts
2. Forest (Terrestrial)
Dominated by trees Covers about 65% of
the earth’s surface
Types: Tropical/Rainforest Temperate/Deciduous
trees with leaves Boreal/Coniferous
tress with needles
3. Grassland(Terrestrial)
Dominated by grass
Types: Savannah/Tropical
some scattered trees and shrubs
Temperate only grass (no trees
or shrubs)
4. Tundra (Terrestrial)
Treeless plains The coldest of all biomes
Types: Arctic
Located near the Arctic Circle and places of Antarctica.
Alpine Located on mountains
5. Aquatic
The aquatic biome is divided into two groups:A. Marine (saltwater)
B. Freshwater
A. Marine (Aquatic) Largest biome in the world
Types: Oceans
E.g.: Atlantic Ocean Coral Reef
E.g.: Great Barrier Reef Shoreline
E.g.: rocky shore, sandy beach, estuary
B. Freshwater (Aquatic)
Types: Rivers/Streams
E.g.: St. Lawrence River Lakes/Ponds
E.g.: Lake Erie Wetlands
E.g.: swamps, marshes and bogs
The 5 Biomes – Recap1. Desert
2. Forest
3. Grassland
4. Tundra
5. Aquatic
top related