ecology - commack schools 19.pdf · ecology 10/24/19. ecology •the study of organisms and the...
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Ecology
10/24/19
Ecology•The study of organisms and the interactions they have with thier environment
•Organisms in an environment are interdependent on one another
Biosphere
•The biosphere is the portion of the earth that supports life.
•Bio - life
•Sphere - geometric shape
1. Biotic - living factors
2. Abiotic – nonliving
factors
Environmental Factors
Biotic (LIVING)
Abiotic (NONLIVING)
If a plant is taken from a
wet swampy area and
grown in a dessert what
abiotic factors will cause
the plant to die?
Try to put the following
words in order from
simplest to most complex.
•Population
•Organism
•Ecosystem
•Biome
•Biosphere
•Biologic Community
Levels of Organization1. Organism
2. Population
3. Biologic Community
4. Ecosystem
5. Biome
6. Biosphere
1. Organism
•The lowest level of
organization is the individual
organism. Example: a
single fish or one student
Organism
2. Population
•A group of the same type
of organisms (species)
•They share the same
geographic location at
the same time
Population
3. Biologic Community• Interacting populations of
different organism (many types
of species)
• Share the same geographic
location
• All the populations of
organisms in a community
4. Ecosystem
• Is a biologic community
and all the abiotic factors
that affect it.
Ecosystem
Why is this a
picture of an
ecosystem
and not a
community?
Answer
The picture has living (biotic)
and nonliving (abiotic) factors
in it
5. Biome
•A large group of
ecosystems that share
the same type of climate
and have similar types of
communities
6. Biosphere
•All the biomes on earth
combined make up our
biosphere
Ecosystem Interactions
•Communities of organisms increase their chances of survival by using available resources in different ways.