Maps of the maximum intensity heard on routes by species

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Below are species maps showing the maximum Index Value heard by route in the 2003 MFTCS survey. Each dot, although located at stop 1 of each route, represents the highest index value heard on any of the 10 stops on the route during the three runs.

Call Index Values
1 - Individuals can be counted with space between calls
2 - Individuals can be distinguished but there is some overlapping of calls
3 - Calls are constant, continuous, and overlapping

Key to Maps:

American Toad (Bufo americanus):

Map of the distribution of American toads in 2003

Great Plains Toad (Bufo cognatus):

Map of the distribution of great plain toads in 2003

Canadian Toad(Bufo hemiophrys):

Map of the distribution of Canadian toads in 2003

Cope's Gray Treefrog(Hyla chrysoscelis):

Map of the distribution of Cope's Gray Treefrog in 2003

Gray Treefrog (Hyla versicolor):

Map of the distribution of Gray Treefrog in 2003

Spring Peeper (Pseudacris crucifer):

Map of the distribution of Spring Peeper in 2003

Western Chorus Frog (Pseudacris triseriata):

Map of the distribution of the Western Chorus Frog in 2003

Bullfrog (Rana catesbeiana):

Map of the distribution of the Bullfrog in 2003

Green Frog (Rana clamitans):

Map of the distribution of the Green Frog in 2003

Pickerel Frog (Rana palustris):

Map of the distribution of the Pickerel Frog in 2003

Northern Leopard Frog (Rana pipiens):

Map of the distribution of the Northern Leopard Frog in 2003

Mink Frog (Rana septentrionalis):

Map of the distribution of the Mink Frog in 2003

Wood Frog (Rana sylvatica):

Map of the distribution of the Wood Frog in 2003		  

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