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

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Presentation on theme: "Communities & Biomes Biotic & Abiotic Factors Biotic = Living organisms Abiotic = Nonliving Soil,Air,Water Substrate."— Presentation transcript:

1

2 Communities & Biomes

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

4 1.Community: Biotic factors All the Plants & Animals In a given area ? Community of Del Mar

5 Forest Community ………….. Deciduous trees Deer Fox Skunks Insects Shrubs Grasses

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

7 2. Limiting Factor Limits Growth Biotic or Abiotic Too much or Too little

8 Ranges of Tolerance Range over which a population or organism can successfully survive & grow Too much or too little of an environmental factor can be limiting

9 3. Succession Orderly change Over time Natural Species Replacement In a community or ecosystem

10 Succession communities: 1.Pioneer species 2. Intermediate species 3. Climax community

11 Pioneer species: Lichens (algae & fungi) break apart rock to make soil Grasses Annual flowers Mosses

12 Climax Community: final set of organisms suited to that climate

13 Deciduous Climax Forest

14 San Diego Coastal Sage & Chaparral Climax Community

15 Types of Succession Primary 1 st 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

16 New island= Primary Succession

17 Secondary Succession will follow !

18 Primary Or Secondary?

19 BOTH PRIMARY & SECONDARY have these Succession communities : 1.Pioneer species 2. Intermediate species 3. Climax community

20 Biome biotic community dominant plants and animals unique climate Biomes of the World

21 BIOMES Tundra Coniferous Forest Deciduous Forest Desert Grassland Rainforest See Biome PP for examples


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