biome

1. Biomes

2. What affects climate?
 Climate in an area is affected by two
main things
• Direct sunlight (heat)
• Precipitation
 Climate directly affects the type of
biome
• Biome is an environment with specific
vegetation and organisms
• If it is cold, you have organisms that are
suitable to the ____

3. Biomes
 Because of these two factors
combined, we get specific biomes at
specific areas.
 For example, at the equator, there is
a lot of sunlight, and a lot of
precipitation, so there is a tropical
rainforest.
 At 30°, there is a lot of sunlight, but
little or no precipitation, so there is a
desert.

4. Overview
 Sunlight and precipitation affect the
climate
 Climate over an environment
produces a biome
 A biome has organisms suited to the
climate
 Biomes generally occur on the same
latitudes

5. Biomes
 There are two main types of biomes
• Land
• Aquatic (water)
 We will cover both today

6. Land Biomes
 Most land biomes are named after
their climax community.
 Some of the land biomes
• Tundra
• Taiga (TIGH-guh)
• Temperate deciduous forest
• Grassland
• Tropical rain forest
• Desert

7. Tropical rain forest
Tropical dry forest
Tropical savanna Temperate woodland
and shrubland
Desert
Temperate grassland
Boreal forest
(Taiga)
Northwestern
coniferous forest
Temperate forest
Mountains and
ice caps
Tundra

8. Aquatic biomes
 There are 3 main types of aquatic
biomes.
 The amount of salt determines the
type of biome.
 The 3 main types of aquatic biomes
• Freshwater
• Marine (saltwater)
• Estuaries

9. Tundra
 Tundra
• Located near the poles
• Treeless biome covered by moss,
lichens, and grasses
• Permafrost – a layer of permanently
frozen subsoil

11. Taiga (Boreal Forest)
 Taiga
• Covered by coniferous (cone bearing)
trees.
• Bears, wolves, moose, elk are some of
the typical animals
 Coniferous Forest

14. Temperate Biomes
 Temperate climates characterized by
cold winters and hot summers
• Plants change during the seasons
(leaves change color)
 Deciduous Forest, Woodland &
Shrubland, Grassland

17. Grasslands
 Grasslands
• Most of the rainfall occurs in one part of
the season
• Hot summers, cold winters

20. Tropical Rain/Dry Forest
 Tropical rain forest
• Located at equator
• Receive 200-400 centimeters of rain a
year
• Constant temperature.
• Home of the most types of animals than
any other biome. Many colorful
 Dry forest: less precipitation

23. Deserts
 Deserts
• Located at 30° latitude
• Less than 25 cm of rain falls a year
• Both plants and animals must be able to
retain moisture.
• Birds, lizards, snakes, insects are typical
• Cactus and sagebrush sparsely cover
the area

26. Freshwater biomes
 Rivers, streams, and lakes

29. Marine Biomes
 Includes all of the ocean
 Marine biomes are divided into 4
subcategories
• Intertidal zone
• Neritic zone
• Open-sea zone
• Deep-sea zone

33. Estuaries
 Estuaries are the boundaries
between freshwater and saltwater.
 Since it is a mix of the two, a variety
of organisms can be supported.
 Examples of estuaries
• Delta, swamp, lagoon

36. Biome Project
 In groups of 3-4, create a biome presentation
 Give information about the biome, including:
• Temperature range (graph)
• Precipitation (graph)
• Location (latitudes/areas)
• Plants (vegetation)
• Animals
• Interesting Facts
 Posterboard or Powerpoint acceptable
 More visuals, the better
 500000000 points
 Due in two weeks!

37. To help you out…
 A Biology Textbook
 http://mbgnet.mobot.org/
 http://earthobservatory.nasa.gov/La
boratory/Biome/

38. Preplan…
 What kind of presentation will you
do? Powerpoint? Posterboard?
 Who is doing what? Research?
Picture finding? Who’s good with
computers? Who’s bringing
materials?
 When do you want to meet up?
Contact info?
 Anything else you can think of…