Transcript Ecology Powerpoint

Ecology
• The study of interactions that occur among
organisms and their environment.
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https://www.youtube.com/watch?v=F-0rTICAT_c
Ecosystems
• All the living organisms and the non-living
things in an area.
• What are the living and non-living things?
Is it alive?
Characteristics of all living things
1. Cellular
organization
2. Contain similar
chemicals (DNA)
3. Use energy
4. Grow and develop
5. Respond to their
surroundings
6. Reproduce
So…..is it alive?
Biotic-alive or once alive.
• It will belong to one of the five kingdoms
• Monera, Protista, Fungus, Plant, Animal
Abiotic -non-living, physical
features of an environment
• Includes- air, water, sun, soil, temperature,
and climate (long term weather patterns)
All the biotic and abiotic parts of an
environment play an important role
in the functioning of that
ecosystem.
Niche (rhymes with itch)
• An organism’s role (job) in its environment.
– Includes how it obtains food and shelter,
finds a mate, cares for its young, and
avoids danger.
Biotic parts
of an
ecosystem
will belong
to one of
the
following
levels
Biotic Levels of Organization in
an Ecosystem
• Organism – a
single living
individual
• Population – all
the organisms of
that species living
in an area
• Community – all
the populations of
all species living in
an area. (plants,
animals, etc.)
• Ecosystem – all
the living and nonliving things in an
area. (biotic and
abiotic things)
Habitat
• The place where an organism lives
Types of habitats
• Biomes- Large geographic areas that have
similar climates and ecosystems.
Biomes
• Tundra, Taiga, Deciduous Forest, Rain
Forest, Grasslands, Deserts, Freshwater,
and Marine.
https://www.youtube.com/watch?v=hIy0ZlyPPDg
Homework
• Describe how the following abiotic parts of
an ecosystem are important for your
survival.
• air, water, sun, soil,
temperature, and
climate (long term
weather pattern)
Key Terms
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Ecosystem
Habitat
Biotic factor
Abiotic factor
Photosynthesis
Species
Population
Community
ecology
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Population density
Estimate
Birth rate
Death rate
Immigration
Emigration
Limiting factor
Carrying capacity
Limiting Factors
• Food
• Space
• Weather Conditions
Carrying capacity is the largest
population that an environment
can support.
Limiting Factors
• Are environmental
factors that prevents a
population from
increasing.
Key Ideas
• An organism’s habitat provides
food, water, shelter, and other
things the organism needs to live,
grow, and reproduce.
• An ecosystem includes both biotic
and abiotic factors.
• Ecologists study how the biotic and
abiotic factors interact within an
ecosystem.