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Ecology Unit

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Ecology Unit SOL BIO 9 a,b,d,e – PowerPoint PPT presentation

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Title: Ecology Unit


1
Ecology Unit
  • SOL BIO 9 a,b,d,e

2
What is ecology?
  • Ecology- the scientific study of interactions
    between organisms and their environments,
    focusing on energy transfer
  • It is a science of relationships.

3
What do you mean by environment?
  • The environment is made up of two factors
  • Biotic factors- all living organisms inhabiting
    the enivornment
  • Abiotic factors- nonliving parts of the
    environment (i.e. temperature, soil, light,
    moisture, air currents)

4
Biome
Ecosystem
Community
Population
Organism
5
  • Organism- any unicellular or multicellular form
    exhibiting all of the characteristics of life, an
    individual living thing.
  • The lowest level of organization

6
Population- one species living in the same place
and compete for resources (ex. food, mates,
shelter)
7
Community- all the different species that live in
a certain area.
8
Ecosystem- all the living creatures of a
community and the abiotic factors with which they
interact (ex. marine, terrestrial)
9
  • Biome- collection of ecosystems with similar
    climates.
  • The highest level of organization

10
  • Habitat vs. Niche

Habitat- the place in which an organism lives out
its life biotic and abiotic factors (a
creatures address) Ex. Bullfrogs habitat -
wetlands
11
  • Habitat vs. Niche

Niche - the role a species plays in a community
how it makes its living (a creatures job) Ex.
Bullfrogs niche where it lives, how it eats,
where it does things, when it does things.
12
  • Habitat vs. Niche

Many creatures can share the same habitat, but
never the same niche!!!!!
13
  • Habitat vs. Niche

Limiting factor - any biotic or abiotic factor
that restricts an organisms niche
14
Habitat vs. Niche
  • Examples of limiting factors-
  • Amount of water
  • Amount of food
  • Temperature
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