References

Pattishall, Abigail., Cundall, David.  2009, June.  Habitat Use by Synurbic Watersnakes (Nerodia sipedon).  Herpetologica, vol. 65, issue 2, pp. 183-198.

Pattishall, Abigail., Cundall, David.  2008, December.  Spatial Biology of Northern Watersnakes (Nerodia sipedon) Living along an Urban Stream.  Copeia, vol. 2008, issue 4, pp. 752-762.

Pattishall, Abigail., Cundall, David.  2008.  Dynamic changes in body form during swimming in the water snake Nerodia sipedon.  Zoology, vol. 111, issue 1, pp. 48-61.

Marshall, John Clark Jr.  2008.  Population genetics and landscape modeling in water snakes.  Dissertation Abstracts International, vol. 69, issue 9, suppl. B, 96 p.

Roth, aTC., Greene, aBD., Taylor, CM.  2006, September.  Movement Patterns and Home Range Use of the Northern Watersnake (Nerodia sipedon).  Copeia, vol. 2006, issue 3, pp. 544-551.

Minnesota DNR.  Last updated 2010.  Northern Water Snake.  Retrieved from http://www.dnr.state.mn.us/snapshots/snakes_turtles/northernwatersnake.html.

Minnesota DNR.  Northern water snake range map [picture].  Retrieved from http://www.dnr.state.mn.us/snapshots/snakes_turtles/northernwatersnake.html.

Sheldon, A.B.  Coiled banded water snake [photograph].  Retrieved from http://dnr.wi.gov/org/land/er/biodiversity/index.asp?mode=photoview&Grp=49&SpecSpec=ARADB22060&PhotoNum=1021.

Beck, Virgil.  Bluegill [photograph].  Retrieved from  http://dnr.wi.gov/fish/species/blgill.htm.

Nedrelo, Dan.  Leopard Frog [photograph].  Retrieved from http://dnr.wi.gov/org/land/er/biodiversity/index.asp?mode=photoview&Grp=21&SpecSpec=AAABH01160&PhotoNum=1056.

Laubenstein, Karen.  Bald Eagle [photograph].  Retrieved from http://dnr.wi.gov/org/land/er/wwap/explore/profiles.asp?mode=detail&Species=ABNKA10010.

Hollingsworth, John and Karen.  Gray Wolf [photograph]. Retrieved from http://dnr.wi.gov/org/land/er/biodiversity/index.asp?mode=photoview&Grp=17&SpecSpec=AMAJA01030&PhotoNum=7624.

Durso, Andrew.  Young snake [photograph].  Retrieved from http://www.discoverlife.org/mp/20q?search=Nerodia+sipedon.

Willson, JD.  Close up head shot [photograph].  Retrieved from http://www.discoverlife.org/mp/20q?search=Nerodia+sipedon

Willson, JD.  Dark snake on rivers edge [photograph].  Retrieved from http://www.discoverlife.org/mp/20q?search=Nerodia+sipedon

Gillilland, Merritt.  Obtained April 10, 2010.  Nerodia sipedon.  Retrieved from http://animaldiversity.ummz.umich.edu/site/accounts/information/Nerodia_sipedon.htmh.

CaliforniaHerps.com.  Obtained April 8, 2010.  Nerodia sipedon – Northern Water Snake.  Retrieved from http://www.californiaherps.com/snakes/pages/n.sipedon.html.

OSSM Vertebrage Zoology.  Obtained April 13, 2010.  Vertebrate Zoology Lecture Notes.  Retrieved from http://www.ossm.edu/biology/reptilia.htm.

Cossel Jr, John.  Obtained April 15, 2010.  Family: Colubridae.  Retrieved from http://imnh.isu.edu/digitalatlas/bio/reptile/main/colfam.htm.

 

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