Ecosystems
Biotic and Abiotic Factors
What is an Ecosystem?
- The interaction of plants and animals and the physical
environment in which they live.
What can affect an ecosystem?
Sunlight
Temperature
Precipitation
Soil
Animals
Elevation
Landforms
Plants
Ecosystems are made up of biotic and abiotic factors
Biotic Factors
Bio = Life
Animals
Plants
Fungi
Microorganisms (Bacteria)
Abiotic Factors
Rocks and Minerals
a , an = not, without
Sunlight
Temperature
Water
Soil
Wind
How do Biotic factors interact with each other?
Competition
Predator-prey
Biotic Factors also interact with Abiotic factors
-
Biotic factors are dependent upon water, minerals, temperature and light
Abiotic factors DETERMINE biotic factors
How hot or cold is it?
How often does it rain?
How saline is the water?
How much water is there?
Is there some kind of shelter?
Frequency of extreme weather?
How much sunlight?
Where is the water located?
Soil composition?
Coal
Bread
Virus
Limestone
Abiotic or Biotic?
How are they
connected?
Honey Bee
Hummingbird
Soil
Earthworm
How are they
connected?
Plants