|Taxonomic Notes: This species was placed in the genus Lithobates by Frost et al. (2006). However, Yuan et al. (2016, Systematic Biology, doi: 10.1093/sysbio/syw055) showed that this action created problems of paraphyly in other genera. Yuan et al. (2016) recognized subgenera within Rana for the major traditional species groups, with Lithobates used as the subgenus for the Rana palmipes group. AmphibiaWeb recommends the optional use of these subgenera to refer to these major species groups, with names written as Rana (Aquarana) catesbeiana, for example. However, Rana sylvatica has proven difficult to resolve phylogenetically and it remains the only member of the genus not assigned to a subgenus.|
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Distribution and Habitat
Country distribution from AmphibiaWeb's database: Canada, United States
U.S. state distribution from AmphibiaWeb's database: Alaska, Alabama, Arkansas, Colorado, Connecticut, District of Columbia, Delaware, Georgia, Idaho, Illinois, Indiana, Kentucky, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Montana, North Carolina, North Dakota, New Hampshire, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Virginia, Vermont, Wisconsin, West Virginia, Wyoming
Canadian province distribution from AmphibiaWeb's database: Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Northwest Territories, Nunavut, Ontario, Prince Edward Island, Quebec, Saskatchewan, Yukon
It is a terrestrial species, often found in or near moist wooded areas, sometimes considerable distances from open water.
Life History, Abundance, Activity, and Special Behaviors
This species was featured as News of the Week on 14 January 2019:
Human activities ranging from vehicle traffic to industry are making the world an increasingly noisy place to live in; two recent studies show frogs have found ways to cope with the human soundscape. Tennessen et al. (2018) studied wood frogs (Rana sylvatica) in northeastern United States where noise from vehicle traffic is physiologically stressful to recently metamorphosed tadpoles, negatively impacting frog health. However, these researchers found that wood frogs from populations living near human noise have rapidly evolved to no longer be stressed by noisy human environments. In Panama, predators like bats and midges avoid noisy urban areas because they rely on sounds to hunt. Halfwerk and colleagues (2018) found that male túngara frogs (Engystomops pustulosus) from urban habitats can flexibly adjust their calls. Urban dwelling male túngara create more conspicuous calls, which are more attractive to females. When these urban males are placed in the forest, they adjust their calls to be less conspicuous and therefore less obvious to predators. Male túngara frogs from forests are unable to flexibly adjust their calls if they are placed in the city. Together, these studies show that some frogs species can rapidly evolve to deal with noisy human environments whereas others can adjust their behaviors accordingly (Written by Max Lambert).
Martof, B. S. (1963). ''Rana sylvatica (Le Conte). Wood Frog.'' Catalogue of American Amphibians and Reptiles. American Society of Ichthyologists and Herpetologists, 86.1-86.4.
Wiebler JM, Kohl KD, Lee Jr RE, Costanzo JP. (2018). ''Urea hydrolysis by gut bacteria in a hibernating frog: evidence for urea-nitrogen recycling in Amphibia.'' Proceedings of the Royal Society B, 285, 20180241.
Originally submitted by: Franziska Sandmeier (first posted 2001-02-21)
Edited by: Arie van der Meijden (28/2/2001) Ann T. Chang (2019-01-16)
Species Account Citation: AmphibiaWeb 2019 Rana sylvatica: Wood Frog <https://amphibiaweb.org/species/5162> University of California, Berkeley, CA, USA. Accessed Aug 3, 2021.
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Citation: AmphibiaWeb. 2021. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 3 Aug 2021.
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