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Biogeography Chapter 1

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Ecology: The study of the interactions of organisms with their environment and with ... Ology = study of. 1. Con't eco biogeography. Abiotic, biotic factors ... – PowerPoint PPT presentation

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Title: Biogeography Chapter 1


1
Biogeography Chapter 1
  • Ecological biogeo
  • Type of distribution
  • Limiting factors
  • Historical biogeo
  • Vicariance

2
1. What is ecological biogeography?
  • Ecology The study of the interactions of
    organisms with their environment and with each
    other.
  • Eco oikos house
  • Ology study of

3
1. Cont eco biogeography
  • Abiotic,
  • biotic factors
  • natural history determine where species live.

4
2. Abotic factors
  • Temperature
  • Light
  • Soil type
  • Chemistry (Ph, oxygen, carbon dioxide)
  • Geology
  • Topography
  • Fire
  • Water
  • Air currents

5
2. Biotic factors
  • Parasites
  • Predators
  • Others of same species interacting
  • Diseases
  • humans

6
2. Natural history
  • Life history
  • Adaptations
  • Reproduction
  • Behavior
  • Dispersal methods
  • Response to environment

7
3. How is distribution studied over time and
space?
time
8
4. How is distribution studied over space?
9
5. Cont example time and space
  • Space (and time)

10
6. What are limiting factors?
  • Oxygen
  • Ph
  • Temperature
  • light

Narrow middle 20 only
11
7. Ecological limits
  • Speckled grasshopper
  • West north america
  • Wide distribution
  • Needs bare ground for mating
  • Limited dispersal

12
7. Ring ouzel
  • Mountain blackbird
  • Cool temperate zone
  • Alps balkans
  • Distribution changed with ice age
  • Adapted for cooler climates

13
8. Historical Biogeography
  • Look at the past for explanation of current
    distribution

14
9. vicariance
  • The importance of geologic and climate events in
    determining species current distributions.

15
10. tapirs
  • Dispersal
  • How did tapirs disperse?
  • North america
  • Fossils in europe
  • Current distribution
  • Related to horses

16
10. Nestor parrots
  • New zealand
  • Africa, south america
  • Teriary
  • Forest birds evolved into mountain birds during
    ice age
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