Thursday, July 8, 2010

1. Wood Frog:
  • Order: Anura
  • Family: Ranidae
  • Genus: Rana
  • Species: R. sylvatica
Identifying characteristics:
  • Adult wood frogs are usually brown, tan, or rust colored, and usually have a dark eye mask.
  • The underparts of wood frogs are pale with a yellow or green cast.
  • 3.5-7 cm in size
  • Females are larger than males
Special adaptations for environment
  • Wood frogs are forest-dwelling organisms that breed primarily woodland vernal ponds
  • primarily breeds in vernal pools rather than permanent water bodies such as ponds or lakes. This is believed to provide some protection of the adult frogs and their offspring (eggs and tadpoles) from predation by fish and other predators of permanent water bodies.
  • By breeding in early spring, wood frogs increase their offspring's chances of metamorphosing before pools dry
  • Adult wood frogs spend summer months in moist woodlands, forested swamps, ravines, or bogs. During the fall, they leave summer habitats and migrate to neighboring uplands to overwinter.

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