References

Ayers, M. P. and Scriber, J. M. (1994). Local adaptation to regional climates in Papilio canadensis (Lepidoptera: Papilionidae). Aspen Bibliography Paper 2236.

Butler, J. F. Hall, D. W. 2011. Featured Creatures. Date accessed 2013-04-09 at http://entnemdept.ufl.edu/creatures/bfly/tiger_swallowtail.htm

Canadian Forestry Association. Date accessed 2013-04-09 at
http://www.canadianforestry.com/html/forest/naturely_speaking_e.html

Kunte, K., Shea, C., Aardema, M. L., Scriber, J., Juenger, T. E., Gilbert, L. E., and Kronforst, M. R. (2011). Sex chromosome mosaicism and hybrid speciation among tiger swallowtail butterflies. Plos Genetics, 7(9), 1-14.

Opler, P. A., Lotts, K., Naberhaus, T. 2012. Butterflies and Moths of North America. Data set accessed 2012-04-06 at http://www.butterfliesandmoths.org/

Paul Smith's College: Visitor Interpretive Center (VIC). 2013. Date accessed 2013-04-09 at http://www.adirondackvic.org/index.html

Schlaepfer, G. G. (2006). Butterflies. Marshall Cavendish Benchmark, New York, USA.

Scriber, J. M., Keefover, K. and Nelson, S. (2002). Hot summer temperatures may stop movement of Papilio candensis butterflies and genetic introgression south of the hybrid zone in the North America Great Lakes region. Ecography, 25: 184-192.

Simon, S. (2011). Butterflies. HarperCollins Publishers, New York, USA.

Wisconsin Butterflies. 2013. Data accessed 2013-04-06 at http://wisconsinbutterflies.org/