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Community Interactions

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Community Interactions Community Interactions Community interactions, such as competition, predation, and various forms of symbiosis, can powerfully affect an ecosystem. – PowerPoint PPT presentation

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Title: Community Interactions


1
Community Interactions
2
Community Interactions
  • Community interactions, such as competition,
    predation, and various forms of symbiosis, can
    powerfully affect an ecosystem.

3
  • Competition when organisms attempt to use a
    resource at the same place and the same time.
  • Predation when one organism captures and feeds
    on another organism.

4
Symbiosis
  • In a symbiotic relationship at least one of the
    organisms directly benefits from its close
    association with the other organism. There are
    three types of symbiosis.

5
  • Symbiotic Relationships

Parasitism
Mutualism
A symbiotic relationship where 1 organism
benefits and the other is harmed. Ex A tick
feeds on the blood of a dog
A symbiotic relationship where both organisms
benefit EX Cowbirds eat the bugs off of a cows
back
Symbiosis
A symbiotic relationship where 1 organism
benefits and the other is unaffected Ex When
cows walk through a field it stirs up bugs and
birds eat the bugs
Commensalism
6
Commensalism
  • One species benefits and the other gets no real
    benefit or harm.

7
Commensalism
Bromiliad and tree the higher the bromiliad on
the branches, the more sun
8
Commensalism
Shark and Remora remora eats food scraps from
sharks meals.
9
Commensalism
Barnacles and Whale Barnacles are moved to
feeding grounds by riding on the whales.
10
Mutualism
  • Both species benefit from the relationship

11
Mutualism
Clownfish gets protection and home Anemone gets
cleaned and brought food
12
Mutualism
Eel gets cleaned by removal of parasites Shrimp
gets food
13
Mutualism
Same as before
14
Parasitism
  • One species (the parasite) benefits, but in doing
    so, harms the other (the host).

15
Parasitism
Mosquito takes blood for food Humans loss of
blood and possible infection
16
Parasitism
Tick blood for food Mammal loss of blood and
possible infection
17
Parasitism
Mistletoe takes nutrients from the tree. Tree
loss of nutrients and loss of leaves, possible
disease.
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