1. BIOMES AND ECOSYSTEMS

2. What is a biome?
A biome is a group of ecosystems with similar climates and organisms

3. There are 6 major land biomes and 2 major water ecosystems?
LAND (6): RAINFORESTS, DESERTS, GRASSLANDS, DECIDOUS FORESTS, TAIGA, & TUNDRA
WATER (2): FRESHWATER & MARINE ECOSYSTEMS

4. Deciduous Forest

5. An area’s biome is determined mostly by its climate
Temperature
Precipitation

6. Taiga Mostly contains conifer trees Cold Winters
trees that produce their seeds in cones and have leaves shaped like needles
Cold Winters
Warm and rainy summers.
Bears, Hares & Carribou

7. DECIDUOUS FOREST
Deciduous trees= Trees that shed their leaves and grow new ones each year
Examples: Oaks & Maple
Receive enough rain to support the growth of trees and other plants
at least 50 cm per year
Growing season is 5 to 6 months long.
Animals- Birds, Deer, Squirrels

8. RAIN FORESTS
There are 2 main types of rainforests

9. RAIN FORESTS Found in regions close to the equator
Warm and humid all year long.
Lots of precipitation
Most of all Biomes
Diverse number of Plants
Large leaves
Diverse number of animals-Second in all Biomes

10. DESERTS
Desert = An area that receives less than 25 cm of rain per year.
Very Dry, little precipitation
Some deserts receive NO precipitation at all during one year.
Antarctica is also considered a desert because of the lack of precipitation.

11. Desert Plants & Animals
Plants- Small leaves or needles used to conserve water
Animals adapt to the desert- Roadrunner, Camel

12. TUNDRA Extremely cold and dry biome.
Most soil is frozen all year long (permafrost)
Plants include Moss and Grasses
PERMAFROST

13. Tundra Plants & Animals
POLAR BEAR
REINDEER
ARCTIC
FOX
ARCTIC HARE

14. Grassland
An area that is populated mostly by grasses and small shrubs.
Includes African Savannah
Receive 25 to 75 cm of rain per year.
Fires and droughts are common.

15. Grasslands are home to many of the largest animals on Earth.
Examples:
Grazing by these large herbivores helps to maintain these grasslands.

16. MARINE ECOSYSTEMS Marine ecosystems have a level of salt. Oceans
Saltwater seas-
Salt Lake
Bays- Less salty
More plants and animals than freshwater
Largest collection of living organisms

17. FRESHWATER ECOSYSTEMS
include streams, rivers,
ponds and lakes.

18. Freshwater Biomes
Provide water to plants and animals from other land biomes
Animals- Fish, Amphibians, Insect, & Birds