Ecology Part 1 Standard 6 Stability in an Ecosystem is a Balance between Competing Effects.
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Transcript of Ecology Part 1 Standard 6 Stability in an Ecosystem is a Balance between Competing Effects.
![Page 1: Ecology Part 1 Standard 6 Stability in an Ecosystem is a Balance between Competing Effects.](https://reader035.fdocuments.in/reader035/viewer/2022062717/56649e215503460f94b0d022/html5/thumbnails/1.jpg)
Ecology Part 1Standard 6
Stability in an Ecosystem is a Balance between Competing Effects
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Vocabulary
Create a flashcard or foldable (2) for the following words. Include the word, definition, and quick picture for each:
Ecosystem
Population
Immigration
Water cycle
Carbon cycle
Nitrogen cycle
Abiotic Factor
Biotic Factor
Decomposers
Producers
Food web
Energy pyramid
Biodiversity
Habitats
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What is Ecology??
Ecology is the scientific study of interactions among organisms and between organisms and their environment/surroundings.
The BIOSPHERE contains all of the life on the planet and there are smaller groups within the biosphere.
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Levels o
f O
rgan
izatio
n
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Levels of Organization
SPECIES is a group of organisms so similar to one another they can breed and produce fertile offspring.
Populations are groups of individuals that belong to the same species and live in the same area.
Communities groups of different species that live together.
An ecosystem is a collection of all the organisms that live in a particular place including the non-living environement
A biome is a group of ecosystems that have the same climate and dominant communities
The biosphere encompasses all of these items.
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Video Clip—Levels of Organization
2Facts from the clip
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Energy Flow SUNLIGHT is the main energy source for life on
Earth! PRODUCERS are AUTOTROPHS or organisms
that make their own food. Plants use PHOTOSYNTHESIS to process
sunlight into carbohydrates (sugar) Organisms who cannot use light use a
process called CHEMOSYNTHESIS to produce carbohydrates from chemical reactions (bacteria)
CONSUMERS or HETEROTROPHS are other organisms that cannot gets its energy directly from the environment but instead eat the autotrophs for energy.
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Feeding Relationships
ENERGY flows through an ecosystem in one direction: from the sun to the autotrophs to various heterotrophs.
The energy stored by producers can be passed through an ecosystem when eaten by a heterotroph. This can be described in a FOOD CHAIN.
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Mouse
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FOOD WEBS
In most ecosystems feeding relationships are more complex and varied than can be shown in a simple food chain.
A FOOD WEB shows the complex interactions of multiple organisms in an ecosystem.
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Food Web; simple
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Food Web; Complex!
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INTERACTIVE
Each group will receive an animal…
Create a food web!
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Trophic Levels
Each step in the food chain or web is called a Trophic level
Producers make up the first trophic level, consumers make up the second, third, or higher levels.
Each consumer depends on the trophic level below it for energy
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Ecological Pyramids
Energy Pyramid
Biomass Pyramid
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Energy Pyramids
Only about 10 percent of the energy available within one trophic level is transferred to organisms at the next trophic level.
The higher up in the pyramid, the less energy that remains from the original amount within the producers.
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Lion King Recap
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Recycling in the Biosphere
Water Cycle Carbon Cycle
Nitrogen Cycle
Phosphorous Cycle
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Brainpops!
Write down 3 facts per cartoon.
Pass the Pen
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Investigating Chemical Cycles
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