Ecology Crash Course! What is Ecology? - Weebly
Transcript of Ecology Crash Course! What is Ecology? - Weebly
1. Ecology Crash Course.notebook May 01, 2016
Ecology Crash Course!What is Ecology?Ecology is the study of
the interactions
between living things
and the environment.
An ecosystem contains
living (biotic) organisms
and nonliving (abiotic)
components.
Biotic components:
Abiotic components:
1. Ecology Crash Course.notebook May 01, 2016
Biotic components:
Abiotic components:Biotic components:
Abiotic components:
Biotic Abiotic
Organisms
- plants
- animals
- fungi
- bacteria
- water
- rocks
- sunlight
- minerals
- air
- temperature
- weather
- soil
Limiting Factor: environmental
resources that limit the growth,
abundance or distribution of a
population of organisms.
example: available space
1. Ecology Crash Course.notebook May 01, 2016
Other limiting factors?- food
- sunlight
- space
- water
- temperature
- humidity
- disease
- minerals
- prey
- predators
- habitat
Other limiting factors?- amount of food
- amount of water
- shelter
- predators
- prey
Limiting factors
Density-dependent Density-independent
Limiting factors
Density-dependent Density-independent
- food
- predation
- disease
- migration
- natural disasters
(earthquakes,
volcanic eruption)
- unusual weather
(drought, hurricane)
- fire
1. Ecology Crash Course.notebook May 01, 2016
Carrying capacity: the maximum
population size that the
environment can sustain given
the resources available.
Nutrients cycle through both the
biotic and abiotic parts of the
ecosystem.
Energy flows through the
ecosystem.
1. Ecology Crash Course.notebook May 01, 2016
Producers: organisms that
make their own food
Examples?
What are the living parts and
nonliving parts of photosynthesis?
Biotic Abiotic
1. Ecology Crash Course.notebook May 01, 2016
There are 3 types of consumers!
1. Herbivores
2. Carnivores
3. Omnivores
1. Ecology Crash Course.notebook May 01, 2016
Scavengers and Decomposers Scavengers are organisms
that eat dead animals or
wastes from other organisms.
Hyenas eat dead zebras and buffalo
1. Ecology Crash Course.notebook May 01, 2016
Decomposers: break down dead
organisms, feces, leaves and other
wastes made by organisms.
Decomposers recycle nutrients from
dead organisms and put them back
into the soil.
Why are scavengers and
decomposers important to
the ecosystem?
Why are scavengers and
decomposers important to the
ecosystem?
1. They recycle nutrients in
the ecosystem so plants can
use them to grow!
2. Without them, dead
matter and waste would pile
up!
1. Ecology Crash Course.notebook May 01, 2016
Mushroom Clip
Dung beetle cliphttp://www.youtube.com/watch?v=I1RHmSm36aE
http://www.youtube.com/watch?v=xeOSXtBCY30
http://www.youtube.com/watch?v=Z6V0a_7N1Mw
the sun!ecosystem.
1. Ecology Crash Course.notebook May 01, 2016
Energy flows from...
1. Ecology Crash Course.notebook May 01, 2016
overlapping food
1. Ecology Crash Course.notebook May 01, 2016
Keystone species: a species that
has a disproportionately large
effect on its environment.
- Plays critical role in maintaining
structure and stability of an
ecological community.
Trophic Pyramids
1. Ecology Crash Course.notebook May 01, 2016
Trophic Pyramid
decreases.
1. Ecology Crash Course.notebook May 01, 2016
1. Ecology Crash Course.notebook May 01, 2016
Because energy is lost as
Trophic Levels
1. Ecology Crash Course.notebook May 01, 2016
Producersorganisms use sunlight to
Secondary consumers
1. Ecology Crash Course.notebook May 01, 2016
Nutrient cycles through both the
biotic and abiotic parts of the
ecosystem.
Energy flows through the
ecosystem.
Carbon Cycle
1. Ecology Crash Course.notebook May 01, 2016
animals living in a certain
1. Ecology Crash Course.notebook May 01, 2016
- limited plant and animal
1. Ecology Crash Course.notebook May 01, 2016
wet seasons
1. Ecology Crash Course.notebook May 01, 2016
Temperate Deciduous
twigs, logs, and dead organisms
1. Ecology Crash Course.notebook May 01, 2016
together/same living
1. Mutualism: relationship in
which both organisms benefit
2. Commensalism: One partner
benefits while the other is
unaffected
1. Ecology Crash Course.notebook May 01, 2016
3. Amensalism: one parter
suffers a disadvantage while the
other is unaffected
4. Parasitism: One partner
benefits while the other is
harmed
5. Predation: One partner
benefits while the other is
harmed
1. Ecology Crash Course.notebook May 01, 2016
6. Competition: both organisms
suffer in this relationship Mutualism
Commensalism
Amensalism
Parasitism
Predation
Competition
Partner A Partner B