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6_LeeTommy_EvolutionEnvironPressReview

Published on Dec 01, 2015

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MORE DECKS TO EXPLORE

PRESENTATION OUTLINE

1.

ENVIRONMENTAL PRESSURES

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2.

ENVIRONMENTAL PRESSURES

  • Keeps population in check
  • There are 4 kinds
  • And here it is...
Photo by A Guy Taking Pictures
3.

DISEASE

  • Illness which hurts or kills an organism.
  • Both humans and animals face this.
  • Can harm more if there's more population.
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4.

COMPETITION

  • The struggle for a limited source.
  • Humans face this challenge
  • Animals also face to challenge.
5.

PREDATION

  • The consumption of another...
  • ...animal in an attempt to survive.
  • For example, bobcats hunt rabbits.
6.

CATASTROPHIC EVENTS

  • An event that impacts organisms in a large area.
  • Volcanic eruption can be an example.
  • Humans face this pressure as well.
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7.

CARRYING CAPACITY
The maximum number of individuals an ecosystem can support

Photo by Rob Weir

Beechwood Student