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Ecosystem

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					Ecosystem
Ecosystems
• Ecosystem
  all the living
  (biotic) and
  nonliving
  (abiotic)
  things in an
  area.
Difference between Niche and Habitat

• Niche is a
  species unique
  position in the
  ecosystem.
• A habitat is the
  physical place
  where the
  organism lives.
     Energy Roles
• Producer: plants
  make own food
  (photosynthesis)
• Consumer: Eats
  stuff for energy
• Decomposer:
  Breaks down dead
  stuff for energy
Producers (Autotrophs)

• Producers:
  source of
  all the food.
Photosynthesis
Consumers (heterotroph)

• Herbivore:
 –Eat only
  plants
 – (Primary Consumer)
         Consumers
• Carnivore:
 –Eats only
  animals
        Consumers
• Omnivore:
 –Eats both
  plants and
  animals
         Consumers
• Scavenger:
 – a carnivore
  that eats
  meat
  something
  else killed
          Decomposer
• Decomposers:
 –Breaks down
  dead
  organisms
 –Returns
  nutrients to soil


                      Fungi   Bacteria
       Energy Flow



• Energy flow through an
  ecosystem can be shown in
  diagrams called food chains and
  food webs.
          Food Chain
• A food chain one
  line of a food
  web
 – Starts with a
   producer
 – Ends with a
   decomposer
         Food Webs

• A food web is
  overlapping
  food chains in
  an ecosystem
      Energy Pyramid

• Energy pyramid
  shows the
  amount of
  energy moving
  through the
  food web
        Carrying Capacity

• Carrying
  Capacity: The
  population size
  an ecosystem
  can sustain
         Limiting Factor

• The things
  that prevent a
  population
  from getting
  any bigger
   Predator – Prey Relationship
• A balance must be
  maintained
  between predator
  and prey

• If there is not enough
  predators then too many
  prey
• Too many predators not
  enough prey
• White-tailed Deer
   –   Archery Only: October 2-November 5, 2010.
   –   (West of IH 35)
       Bag Limit: 5 deer, no more than 2 bucks, all seasons combined.
   –   General Season: November 6, 2010-January 2, 2011.
   –   Special late general season: January 3-16, 2011. Antlerless and Spike deer only.
   –   (East of IH 35)
       Bag Limit: 4 deer, no more than 2 bucks, and no more than 2 antlerless, all seasons combined.
       General Season: November 6, 2010-January 2, 2011. Antlerless deer may be taken by antlerless MLD
       permit or LAMPS permit only.
   –   Special Youth-Only Season: Early open season: October 30-31, 2010. Late open season: January 3-
       16, 2011.
   –   Licensed hunters 16 years of age or younger may hunt deer by any lawful means during this season.

• Squirrel:
   –   No closed season. No bag limit.

• Turkey
   –   Fall: Open season: November 6, 2010-January 2, 2011 (either sex). Archery Only: October 2-
       November 5, 2010.
   –   Special youth-only (general) fall turkey season: October 30-31, 2010, and January 15-16, 2011. Only
       licensed hunters 16 years of age or younger may hunt turkey during this season. Bag limit as specified
       by the general fall turkey season.

• Quail: Open season: October 30, 2010-February 27, 2011.
  Daily bag limit: 15 Possession limit: 45

				
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posted:9/7/2012
language:English
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