|Scientific Name:||Hyla versicolor|
|Species Authority:||LeConte, 1825|
|Taxonomic Notes:||This species is not distinguished from the very similar Hyla chrysoscelis in most published literature; it is distinguished by chromosomes, erythrocyte size (Matson 1990), and call characteristics.|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Reviewer/s:||Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)|
Listed as Least Concern in view of its wide distribution, tolerance of a degree of habitat modification, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
|Range Description:||This species' geographic range is not precisely determined, although it covers much of the eastern USA and southeastern Canada. It is sympatric with H. chrysoscelis in Wisconsin, south-central U.S., and probably many other areas. See Little et al. (1989) for distribution in West Virginia, southern Ohio, and southwestern Pennsylvania. See McAlpine et al. (1991) for information on distribution in eastern Maine and southwestern New Brunswick.|
Native:Canada; United States
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||The total adult population size is unknown but it is abundant and probably stable.|
|Habitat and Ecology:||It inhabits various kinds of wooded and forested habitats. It is both arboreal and terrestrial. It hides in tree holes, under bark, in rotten logs, under leaves, and under tree roots when inactive. Eggs and larvae develop in shallow woodland ponds and marshes, puddles, ponds in forest clearings, swamps, bogs, and many other kinds of permanent or temporary waters lacking a significant current, including ponds created through excavation by humans. In northern Minnesota, successful reproduction in acidic bog water either does not occur or is a rare event (Karns 1992). In central Ontario, embryos and larvae exhibited high degree of acid tolerance (J. Herpetol. 26:1-6).|
|Major Threat(s):||This species is not threatened overall. Introduced bluegill sunfish might cause declines in larval tree frog abundance (Smith et al. 1999).|
|Conservation Actions:||No conservation measures are needed.|
Blackburn, L., Nanjappa, P. and Lannoo, M.J. 2001. An Atlas of the Distribution of U.S. Amphibians. Ball State University, Muncie, IN, USA.
Conant, R. and Collins, J.T. 1998. A Field Guide to Reptiles and Amphibians: Eastern and Central North America. Third edition, Expanded. Houghton Mifflin Company, Boston, MA, USA.
DeGraaf, R.M. and Rudis, D.D. 1983. Amphibians and Reptiles of New England: Habitats and Natural History. University of Massachusetts Press, Amherst, MA, USA.
Frost, D.R. 1985. Amphibian Species of the World: A Taxonomic and Geographic Reference. Allen Press and the Association of Systematic Collections, Lawrence, Kansas.
Gerhardt, H.C., Ptacek, M.B., Barnett, L. and Torke, K.G. 1994. Hybridization in the diploid-tetraploid treefrogs Hyla chrysoscelis and Hyla versicolor. Copeia: 51-59.
IUCN. 2004. 2004 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 23 November 2004.
Jaslow, A.P. and Vogt, R.C. 1977. Identification and distribution of Hyla versicolor and Hyla chrysoscelis in Wisconsin. Herpetologica: 201-205.
Karns, D.R. 1992. Effects of acidic bog habitats on amphibian reproduction in a northern Minnesota peatland. Journal of Herpetology: 401-412.
Kiesecker, J.M. and Skelly, D.K. 2000. Choice of oviposition site by gray treefrogs: the role of potential parasitic infection. Ecology: 2939-2943.
Little, M.A., Monroe, B.L. Jr. and Wiley, J.E. 1989. The distribution of the Hyla versicolor complex in the northern Appalachian highlands. Journal of Herpetology: 299-303.
Matson, T.O. 1990. Erythrocyte size as a taxonomic character in the identification of Ohio Hyla chrysoscelis and H. versicolor. Herpetologica: 457-462.
McAlpine, D.F., Fletcher, T.J.S., Gorham, W. and Gorham, I.T. 1991. Distribution and habitat of the tetraploid gray treefrog, Hyla versicolor, in New Brunswick and eastern Maine. Canadian Field-Naturalist: 526-529.
Ralin, D.B., Romano, M.A. and Kilpatrick, C.W. 1983. The tetraploid treefrog Hyla versicolor: evidence for a single origin from the diploid H. chrysoscelis. Herpetologica: 212-225.
Smith, G.R., Rettig, J.E., Mittelbach, G.G., Valiulis, J.L. and Schaack, S.R. 1999. The effects of fish on assemblages of amphibians in ponds: a field experiment. Freshwater Biology: 829-837.
Vogt, R.C. 1981. Natural History of Amphibians and Reptiles of Wisconsin. Milwaukee Public Museum, Milwaukee, WI, USA.
|Citation:||Geoffrey Hammerson 2004. Hyla versicolor. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 23 May 2013.|
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