Biogeographical Regionalization-Terrestrial Plants YouTube Lecture Handouts

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Newbigin, Engler, Udvardy & Takhtajan Classification: Biogeographic Regionalization

Biogeographical Classification

  • Major Classifications
  • Terrestrial Plants
  • Terrestrial Animals
  • Aquatic Plants & Animals

Classification on Environmental Conditions

Moisture

  • Hygrophyte – water loving plants
  • Meosphyte – in moist but not wet
  • Tropophyte – alternate wet & dry
  • Nerophyte – drought areas

Temperature

  • Megatherm -
  • Mesotherm - warm temperature
  • Microtherm – above & warmest temperature
  • Hekistotherm – less than

Ronald Good Classification

Classification & Global Distribution of Plants and Animals - Vavilov՚S Genecenters

Engler Classification

Phylogenetic principles - evolutionary history

4 Kingdoms

  • Holoarctic
  • Paleotropical
  • Old Oceanic – Austral (Southern ocean)
  • South American

Udvardy՚S Classification

In 1975

Vegetational components

8 Regions

  • Nearctic
  • Palearctic
  • Neotropical
  • Africotropical
  • Indomalayan
  • Oceania
  • Australian
  • Antarctic

Takhtajan Classification

  • In 1986
  • 6 kingdom & 35 regions
  • Created separated Cape Kingdom
  • Importance of Cape Kingdom

Newbigin Classification

  • 1917: Man and His Conquest on Nature
  • 1936: Plant and Animal Geography
  • Basis was disciplinary epistemology and ontology
  • Gave 5 regions

Complete details on biogeographical regionalization and study material can be fetched at:

Examrace IAS Mains Geography Optional Series (Includes 2017 Contemporary Topics)

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