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SPECIES INTERACTIONS

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Title: SPECIES INTERACTIONS Author: abrooks Last modified by: Aarti Brooks Created Date: 9/14/2006 2:38:35 PM Document presentation format – PowerPoint PPT presentation

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Title: SPECIES INTERACTIONS


1
SPECIES INTERACTIONS
2
COMPETITION
  • What do organisms compete for?

3
2 Types of Competition
  • Intraspecific
  • Occurs between members of the same species
  • Interspecific
  • Occurs between members of different species.

4
COMPETITION
GAUSE
5
(No Transcript)
6
C O N N E L L
7
REDUCING COMPETITION BY RESOURCE PARTITIONING
MacArthur
Different species need same resources
Finches
BATS EAT THE INSECTS IN THE AIR, LIZARDS EAT
THE INSECTS ON THE GROUND
8
Resource Sharing can lead to CHARACTER
DISPLACEMENT
Differences develop between similar species due
to competition
Similar species need similar or same
resources Large beaked can eat all size seeds,
but will eat larger to reduce competition With
those that can only eat small or medium
9
PREDATION
and
and
10
Species Interactions Predator - Prey
  • Predator/Prey Relationships
  • Cheetah and Wildebeest http//www.youtube.com/watc
    h?vrXO3h6bpEUUfeaturerelated
  • Baboom/Flamingo http//www.youtube.com/watch?vb99
    5_dC6iDM

11
Physiological
12

Structural

13
Coral Snake Scarlet King (venomous)
(non-venomous)   Red next to Black - safe for
JackRed next to Yellow - kill any fellow.
Viceroy Monarch (edible) (inedible)
Mimicry
  • Mimic Octopus
  • http//www.youtube.com/watch?v7Zh50pfG7d8

14
Cryptic Coloration
15
PLANT - HERBIVORE
Carrion Flower
Poison Ivy
16
Plants for Medicinal Purposes
Good sleep Laxative (skin) Diarrhea (no skin)
Soothes Or laxative
anemia
cleanser
17
SYMBIOSIS
  • 3 types
  • Parasitism
  • Mutualism
  • Commensalism

18
PARASITISM
Ectoparasites
Endoparasites
  • Maggots in my head http//www.youtube.com/watch?v
    V2Ac6RYSvo8featurechannel
  • Parasite in Lungs http//www.youtube.com/watch?v
    Im_5xQu5GbAfeaturechannel

19
MUTUALISM
  • Caterpillar and ant http//www.youtube.com/watch?v
    z3bWqlPLpMg
  • Buffalo and Egret http//www.youtube.com/watch?v
    8BEKrc-aXF8

20
COMMENSALISM
  • Shark and Remora http//www.youtube.com/watch?ve4
    xrdeagyYM

21
SUCCESSION
22
Primary Succession
  • http//www.pbs.org/wgbh/nova/nature/crisafulli-bla
    st-zone.html
  • http//www.youtube.com/watch?vk03vxRYsJ4Y

23
Secondary Succession
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