What is ecology?. The study of how organisms interact with each other and how they interact with...
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Transcript of What is ecology?. The study of how organisms interact with each other and how they interact with...
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What is ecology?
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The study of how organisms interact with each other and how they interact with their
environment.
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What is a group of communities with similar abiotic and biotic
conditions?
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Habitat
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A group of a same species that may/may not interact
with each other?
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Populations
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What is the order of ecology?
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Organism |Species |Populations | Community |Habitat |Ecosystem |Biomes |Biosphere
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What is called when we encounter non- living things?
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Abiotic Factors
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What is a species?
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o A group of the same type of organism that lives in the same place/ time
o It’s capable of reproducing and producing fertile young
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What is the smallest unit of study that ecologists concern themselves with?
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Individual organisms
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What is ecosystem?
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It is many habitats in a generalized
area.
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What is it called when all the places on Earth are the survival of living things?
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Biosphere
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What are communities?
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o Groups of populations that interact with each other at any given day or time
o Also interact with abiotic (non-living) parts of the community.
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What are Saprobes?
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o Decomposers
o Microscopic organisms
o Helps get rid of all remaining materials when things die
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Similar to Saprobes?
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Decomposers
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An organism that makes it own food?
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Autotroph (photosynthesis)
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An organism that only eat plants?
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Herbivore
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An organism that eats both plants and meat?
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Omnivore
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Organism that eat other dead organisms?
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Scavenger
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An organism that only eat meat?
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Carnivore
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An organism that obtains its nutrients from other organisms?
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Heterotroph
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Food Pyramid
Vs.
Food Web
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o Food pyramid: much like a chain with a specific order
o Food web: much more complicated with different paths being followed
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Producers: First Tropic Level?
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o Autotrophs
o Get their energy from the sun
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Primary Consumers:Second Tropic Level?
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o First Consumers
o 90% of energy is lost per level as you move up the pyramid
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Secondary Consumers:Third Tropic Level?
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o Second level consumers
o 10% of energy is left over for those organism to use
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Tertiary Consumers: Fourth Tropic Level?
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o Third level consumers
o 1% of energy is left for those organism to use
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Quandary Consumer: Fifth Tropic Level?
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o Very little energy at this level
o Usually its rare to be at this level
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The flow of energy in a tropic level?
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o Moves from the lowest level to the highest level
o 90% of the energy is used up at each level in order for the organism to properly function
o The original energy comes from the sun.
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What is carry capacity?
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o Largest number of individuals that can survive over long periods of time in a given environment.
o This level depends on the effect of the limiting factors
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Competition between species
Vs.
Competition among species
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o Competition between species principally they are competing for food, water, shelter.
o Competition among species they are competing for food, water, shelter and mates.
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A factor that you are able to access to resources?
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Limiting Factors
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Density Dependent
Vs.
Density Independent
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o Density Dependent: when all it is affected by population
o Density Independent: when all is equally affected. It doesn't’t matter how many people there are.