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Bianca Auble

on 29 February 2016

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Transcript of Ecology

Ecology Classification
A specific climate - defined by average temperature and rainfall - that supports a particular community of plants and animals

Different populations that live in a defined area.
Groups of individuals that belong to the same species, can reproduce, and live in the same area.
The degree of variation of all species in an ecosystem
A biological community of interacting organisms AND their physical environment
Come up with your own examples...
Use the circled notes template to come up with examples to help you remember the meanings of these terms.

- Use words, phrases, and pictures.
Looking into the Future...
Further classification.
How do we classify the specific interactions between organisms?
How does energy transfer through our ecosystem?
Check for Understanding:
Fist to Five
Fist = Help! I'm so lost.
1 = Still feeling very shaky about this.
2 = I'm starting to get the idea.
3 = Confident I could match most of the terms.
4 = I could definitely match all of the terms.
5 = I got it! I'm ready to teach the class.
Self-Check: Show you (and me) what you know
A. Community

B. Population

C. Ecosystem
Groups of individuals that belong to the same species, can reproduce, and live in the same area.

A biological community of interacting organisms AND their physical environment

Different populations that live in a defined area.
Directions: Match the correct definition with each term.

Though each animal is classified using all levels, we usually discuss the simplified classification using only Genus species.

Linnean Classification

Now, re-group your organisms with a new organization

Food Chain

A linear representation of feeding relationships in a community


Groups of two or more species of organisms interacting in the same area.


Organism that breaks down dead plant or animal matter, releasing nutrients and energy back into the ecosystem

Secondary Consumer

Heterotroph that feeds on primary consumers; AKA carnivore


Autotroph that converts sunlight and CO2 to organic material.

Make sure to label each trophic level

Create your own food chain given the species on the next slide.

Leaf-eating ant?

Fox that eats a rabbit?

Hawk that eats a lizard that eats insects?

Some Examples

Tertiary Consumer

Heterotroph that feeds on other carnivores

Primary Consumer

Heterotroph that feeds on producers;
AKA Herbivore

Classification based on Trophic Strategy

Many common names for the same animal

People who speak different languages can understand

Highly organized

Often helps to understand evolutionary relationships

Why the Linnean System?

Organize the organisms into a food chain.
Place the arrows in the direction energy is flowing.
Label each organism.
Trophic level = position an organism occupies in a food chain

Why do organisms consume one another?
Where does this energy come from?
Energy moves through the ecosystem in
Make a food chain with the following three organisms.
Then, label the trophic level of each organism.
E.g. Homo sapiens
Canus lupis
Felis catus
Brachypelma smithi

HW: Choose one biome. Draw (or use computer generated images) and label a food chain from that biome with an example of each of the following trophic levels:
Primary Consumer
Secondary Consumer
Tertiary Consumer
QUIZ Thurs/Fri
One food chain puzzle
Show me what you know
Species Interactions
How do species live together in a community?
Mutualism (+ / +)
Both species benefit from the relationship.
Predation (+ / -)
One organism catches and feeds on another organism. One species benefits and the other suffers.
Competition (- / -)
Organisms of the same or different species attempt to use an ecological resource in the same place at the same time.
Commensalism (+ / 0)
One organism benefits and the other is neither helped nor harmed.

Write a short story (1-2 paragraphs) about a biome that includes an example of each species interaction.

Then, highlight and label which part of your story relates to each species interaction.

Predict the Species Interactions
1. Shark and Loggerhead Turtle?
2. Shark and Jack/Mackerel?
3. Shark and Barber Fish?
4. Shark and Humans?
Ecology Pyramids
10% Rule
Deciduous Forest Food Chain
Oak tree
Beetle (primary consumer)
Raccoon (secondary consumer)
Fox (tertiary consumer)
Must have:
Names of organisms
Trophic Levels
Where does all the energy go between each trophic level?
Interpret the graph.
Why are there fewer oak trees than clovers?
Full transcript