Social Communication in Frogs

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Social Communication in Frogs
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Tugara Tree

• Frog calls
• Simple signals
• Loud
• Consistent (not learned)
• Temperature Dependent
• Multiple call types
• Multiple mating systems
• Large diversity of calls related to speciation
  (reproductive isolation)
  
• Peripheral specializations
• Sexual Selection

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Living Amphibians
Salientia (Frogs and Toads) Caudata (Salamander
s and Newts)
Gymnophiona (Caecilians)
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Rana pipiens Photo
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Rana pipiens Calls
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Normal Approach
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Blocked Hearing
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Noise chorus Sonos
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Noise Results
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Pressure
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Frog Inner Ear
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Photomicrographs
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Rana pipiens tympanic membrane
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Eardrum photos
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Transfer Functions
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Tree Hole Photo
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Tree Hole Data
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Sensory Bias?

• Evolution of systems that target existing
  sensory
  
• systems in novel ways
• Sender / receiver
• Honesty of signalling

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Tungara Frog
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Tungara Movie
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Tungara Calls
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Tugara Call Features

• Facultative switching of call types
• Female preference for low-frequency chucks
• Energetic similarity
• Bat preference for chucks
• Inner ear tuning (information)

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Polyploidy and Reproductive Isolation
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Chrysoscelis Photo
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Sono comparos
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Tetraploid - nuclear are
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Tetraploid - PRR's
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BREAK
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Tungara Calls
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Hyla regilla
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Advert/Aggress Calls
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Regilla sonos
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Adver/Agress data
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Todd's Stimuli
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Stimuli - Behavior
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Tuning to Behavior
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Driving Preferences
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More Driving Preferences
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Energy independence
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Counting - Fig 1
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Counting - Fig 2
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Counting - Fig 3
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Sensory Exploitation
Female choice may also drive increase in female
preference