Download Abiotic vs Biotic Factors

9/29/2014
Science 10
Unit 1 – Sustainability of
Ecosystems
Unit Assignment
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Presentation
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Groups of 2 or individual
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Use whatever way you want to present –
PowerPoint, Posters, Movie Maker/iMovie,
etc.
Alien Species
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A species (can be plant, animal, or
microorganism) that is accidentally or
deliberately introduced into a new location
location.
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Other names/terms include introduced
species, non-native species, and exotic
species.
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Alien Species
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Usually arrive by accident through
shipments.
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Many can be harmless or beneficial, but
some are detrimental to their new
environment.
Example: Silver Pheasant
Introduced to parts
of Europe from Asia
for ornamental
purposes.
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Example: Small Pox
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A disease introduced by the Spanish that
affected local natives.
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Can result in blisters, scarring, and death
(1%)
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Science 10 - Ecosystems
1.01 – Biotic and Abiotic
Components of Ecosystems
Ecosystems
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All of the interacting parts of a biological
community and its environment.
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The environment is made up of energy and
matter.
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Sustainable Ecosystems
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An ecosystem capable of withstanding
pressure(s) and giving support to a variety of
organisms.
organisms
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Pressure = forms of pollutants, changes in
weather, changes in organisms, YOU!
Ecosystem Parts
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2 components make up an ecosystem:
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Biotic Components/Interactions
Abiotic Components/Interactions
2.
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These 2 components interact and are the
way that material and energy is transferred.
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1. Biotic = “Living” Parts of the Ecosystem
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This also includes dead things.
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If it is/was composed of cells, then it is
considered biotic.
Biotic Interactions
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All biotic interactions in an ecosystem affect
its sustainability.
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There are 3 main interactions, biotically…
A) Symbiosis
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The interaction between members of two
different species that live together in a close
association.
association
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Effects by one living on another can be
beneficial, detrimental, or have no affect.
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A) Symbiosis (continued)
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Parasitism occurs when a parasite lives in or
on another living thing (the host) and takes
energy (food) from the host
host.
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A parasite does not kill its host, but it can
make the host weak.
Example: The Tapeworm
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A) Symbiosis (continued)
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Commensalism occurs when one living thing
benefits, but does not affect the other.
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Eg. Remora and a shark
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Mutualism occurs when both organisms
benefit.
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E.g. Squirrels/chipmunks and oak trees
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Clownfish & Sea Anemone
B) Predation – Food Chain Linkage
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Occurs when one organism (the predator)
consumes another organism (the prey) for
food.
food
Sea Otters
C) Competition – Survival of the Fittest
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Occurs when 2 or more organisms compete
for the same resource such as food, in the
same location at the same time
time.
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Energy is used competing for resources and
take away from life processes (growth).
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Example - Trees and Forest
Floors
Abiotic Characteristics
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These are the non-living components in an
ecosystem – they do not contain cells.
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This includes water, oxygen, light, nutrients,
and soil.
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