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Bullfrog

Identifying Fe​atures

  • Locally common, has been declining in many areas.
  • Areas with abundant submerged and emergent vegetation are preferred. 
  • Rarely use temporary waters.
  • Tadpoles and adults bury themselves in bottom mud during hibernation.
  • Adults may hibernate from mid-October to April or May.
  • Love warmer weather, inactive until water temperature is above 60 degrees Fahrenheit.

C​all

  • Series of bass notes, like “jug-o-rum.”

Bree​​ding

  • Breeding usually begins in mid-May, peaks in June, and lasts into July
  • Territorial (6-20ft. in diameter).
  • 5,000-20,000 eggs are laid in a large free ​floating mass.

Dev​​elopment

  • Hatch in 3-6 days.
  • May transform in 2 years, but many take up to 3 years.
  • Sexual maturity is 2-4 years after transformation.

Conservation No​​te

  • Human use of lakeside, including construction,​ disrupts Bullfrog reproductive activities.
  • Heavily collected for restaurant and scientific​​ supply.
  • Unlikely that this species can survive intense use for commercial or even personal use. This is​ due to the long​ time needed for growing, and slow population replacement rate.

Habitat Typ​e

  • Ephemeral wetlands.
  • Permanent wetlands.
  • Forests.
  • Grasslands and savannas.
  • To a lesser extent, bullfrogs may be found in urban and agricultural areas.

​​​​​​​​​​3875 E. Huron River Drive, Ann Arbor, MI 48104

734.794.6627

 

 

 

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