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Communities & Biomes

Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

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Page 1: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Communities & Biomes

Page 2: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Biotic & Abiotic FactorsBiotic = Living organisms

Abiotic = Nonliving Soil,Air,Water Substrate

Page 3: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

1.Community: Biotic factors

All the Plants & Animals

In a given area? Community

of Del Mar

Page 4: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Forest Community …………..

•Deciduous trees•Deer•Fox•Skunks•Insects•Shrubs•Grasses

Page 5: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Ecosystem: Both biotic and abiotic factors in a large area:

Page 6: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

2. Limiting FactorLimits GrowthBiotic or AbioticToo much orToo little

Page 7: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Ranges of Tolerance

0

20

40

60

80

100

10 15 20 25 30snail

Range over which a population or organism can successfully survive & grow

Too much or too little of an environmental factor can be limiting

Page 8: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

3. Succession Orderly

change Over time Natural Species

Replacement In a

community or ecosystem

Page 9: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Succession communities:

1. Pioneer species

2. Intermediate species

3. Climax community

Page 10: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Pioneer species:

Lichens (algae & fungi) break apart rock to make soil

Grasses Annual flowers Mosses

Page 11: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Climax Community: final set of organisms suited to that climate

Page 12: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Deciduous Climax Forest

Page 13: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

San Diego Coastal Sage & Chaparral Climax Community

Page 14: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Types of SuccessionPrimary 1st time plants

or animals are

established New island Volcanoes Bare soil, rock

Secondary After a “blowout” Re-establish a

community Already had

living organisms Fire, flood,

human disruption

Page 15: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

New island= Primary Succession

Page 16: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Secondary Succession will follow!

Page 17: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Primary Or Secondary?

Page 18: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

BOTH PRIMARY & SECONDARY have

these Succession communities:

1. Pioneer species

2. Intermediate species

3. Climax community

Page 19: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

Biome biotic

community

dominant plants and animals

unique climateBiomes of the World

Page 20: Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate

BIOMESTundraConiferous ForestDeciduous ForestDesertGrasslandRainforestSee Biome PP for examples