Frogs - Identification PowerPoint PPT Presentation

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Title: Frogs - Identification


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  • Frogs - Identification

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Frog identification
  • Frogs can be identified using a number of
    techniques
  • Record frog calls and then play them back to the
    same frogs to encourage them to reveal themselves
  • Take photos for verifying identification
  • Use triangulation to pinpoint a frogs location
  • Listen to frog calls and compare them with known
    frog calls in your region
  • Survey frogs at night when they are most active

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Using a frog identification key
  • Identification keys focus on the important
    features of each species.
  • The Key to Victorian frogs http//frogs.org.au/fr
    ogs/key.htmlkey
  • identifies species based on a range of
    distinguishing features including
  • Pads present or absent on digits
  • Pupil cross-shaped or horizontal
  • Tympanum (ear) distinct or not
  • Presence of dorso-lateral fold etc.

www.ecolinc.vic.edu.au
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Pads present on digits
Back distinctly warty
Distinct dorso-lateral fold Frog predominantly
green
Pupils horizontal
Tympanum/ear distinct
Growling Grass Frog (Click on website for call)
http//frogs.org.au/frogs/species/Litoria/raniform
is/
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