User:Bfpage/references needed

Altizer, S. and A.K. Davis. 2010. Populations of monarch butterflies with different migratory behaviors show divergence in wing morphology. Evolution 64(4):1018-1028.

Brindza, L., L.P. Brower, A.K Davis, and T. Van Hook. 2008. Comparative success of monarch butterfly migration to overwintering sites in Mexico from inland and coastal sites in Virginia. Journal of the Lepidopterists' Society 62(4):189-200.

Brower, A.V., and M.M. Jeansonne. 2004. Geographical populations and ?subspecies? of new world monarch butterflies (Nymphalidae) share a recent origin and are not phylogenetically distinct. Annals of the Entomological Society of America 97(3):519-523.

Brower, L. P., L. S. Fink, I. Ramirez, R. Zubieta, and D. Slayback. 2010. Weather storms and monarchs. Monarch Watch Blog, 21 February 2010. Online. Available: http://monarchwatch.org/blog/2010/02/weather-storms-and-monarchs

Brower, L.P. 1995. Understanding and misunderstanding the migration of the Monarch butterfly (Nymphalidae) in North America: 1857-1995. Journal of the Lepidopterists Society 49: 304-385.

Brower, L.P., O.R. Taylor, E.H. Williams, D.A. Slayback, R.R. Zubieta, and M.I. Ramírez. 2012a. Decline of monarch butterflies overwintering in Mexico: is the migratory phenomenon at risk? Insect Conservation and Diversity 5:95-100. Available from http://doi.wiley.com/10.1111/j.1752-4598.2011.00142.x

Brown, J. W., H. G. Real and D. K. Faulkner. 1992. Butterflies of Baja California. Lepidoptera Research Foundation, Inc., Beverly Hills, CA. 129 pp. and 8 plates.

Butler, C.A. 2014. The need for Milkweed: report on the international initiative to address the decline of the Monarch Butterfly (Danaus plexippus). News of the Lepidopterists' Society 56(3):128-135.

Center for Biological Diversity, Center for Food Safety, Xerces Society for Invertebrate Conservation, and Dr. L. Brower. 2014. Petition to protect the monarch butterfly (Danaus plexippus plexippus) under the Endangered Species Act. Report submitted to the United States Secretary of the Interior, Washington, D.C., 26 August 2014. 159 pp.

Crolla, J.P. and J.D. Lafontaine 1996. Status Report on the Monarch Butterfly (Danaus plexippus) in Canada. Report submitted to the Canadian Wildlife Service, Water and Habitat Conservation Branch, Habitat Conservation Division, March 29, 1996.

Flockhart, D.T.T., J.B. Pichancourt, D.R. Norris, and T.G. Martin. 2014. Unraveling the annual cycle in a migratory animal: breeding-season habitat loss drives population declines of monarch butterflies. Supplementary Material in addition. Journal of Animal Ecology: doi: 10.1111/1365-2656.12253.

Flockhart, D.T.T., L.I. Wassenaar, T.G. Martin, K.A. Hobson, M.B. Wunder, and D.R. Norris. 2013. Tracking multi-generational colonization of the breeding grounds by monarch butterflies in eastern North America. Proceedings of the Royal Society B: Biological Sciences 280:20131087?20131087. Supplementary Material in addition. Available from http://rspb.royalsocietypublishing.org/cgi/doi/10.1098/rspb.2013.1087

Glassberg, Jeffrey. 1993. Butterflies through binoculars: A field guide to butterflies in the Boston-New York-Washington region. Oxford University Press: New York. 160 pp.

Hinteland Who's who, 2008. Monarch Butterfly website.

Kondla, N.G. 2004. Overview of the Status and Distribution of Butterflies and Skippers in Saskatchewan and Manitoba National Parks and National Historic Sites. Report to the Western Service Centre, Parks Canada, Calgary, AB. 27 pp.

Layberry, R.A., P.W. Hall, and J.D. LaFontaine. 1998. The Butterflies of Canada. University of Toronto Press: Toronto, Canada. 280 pp. + color plates.

Miller, N.G., L.I. Wassenaar, K.A. Hobson, and D.R. Norris. 2012. Migratory connectivity of the monarch butterfly (Danaus plexippus): patterns of spring re-colonization in eastern North America. PLoS ONE 7:e31891. Available from http://dx.plos.org/10.1371/journal.pone.0031891.

Minno, M.C. and M.F. Minno (eds.). 1995. Season Summary. News of the Lepidopterists Society 37: 19.

Monroe, M., C. Fallon, D. Frey, and S. Stevens. 2015. Western Monarch Thanksgiving Count Data from 1997?2013. Online. Available: from http://www.xerces.org/western-monarch-thanksgiving-count/

Nail, K. and K. Oberhauser. 2012. Cold tolerance of immature Monarchs. 2012 Monarch Biology and Conservation Meeting. Online. Available: http://monarchjointventure.org/images/uploads/presentations/Nail.pdf.

NatureServe. 2006. NatureServe Explorer: An online encyclopedia of life [web application]. Version 4.7. NatureServe, Arlington, VA. Available at .

Opler, P. A., and A. D. Warren. 2002. Butterflies of North America. 2. Scientific Names List for Butterfly Species of North America, north of Mexico. C.P Gillette Museum of Arthropod Diversity, Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, Colorado. 79 pp.

Pelham, J. P. 2008. A catalogue of the butterflies of the United States and Canada with a complete bibliography of the descriptive and systematic literature. The Journal of Research on the Lepidoptera. Volume 40. 658 pp.

Pleasants, J.M. and K.S. Oberhauser. 2013. Milkweed loss in agricultural fields because of herbicide use: effect on the monarch butterfly population. Insect Conservation and Diversity 6(2):135-144

Pérez-Asso, A.R., J.A. Genaro and O. H. Garrido. 2009. Las mariposas de Puerto Rico. Editorial Cocuyo, Puerto Rico. 140 pp.

Scott, J. A. 1986. The Butterflies of North America: A Natural History and Field Guide. Stanford University Press, Stanford CA. 583 pp.

Slayback, D. A., L. P. Brower, M. I. Ramirez, and L. S. Fink. 2007. Establishing the presence and absence of overwintering colonies of the monarch butterfly in Mexico by the use of small aircraft. American Entomologist 53:28-39.

Slayback, D. A., and L. P. Brower. 2007. Further aerial surveys confirm the extreme localization of overwintering monarch butterfly colonies in Mexico. American Entomologist 53:146-149.

Smith, D.A.S., G. Lushai, and J.A. Allen. 2005. A classification of Danaus butterflies (Lepidoptera: Nymphalidae) based upon data from morphology and DNA. Zoological Journal of the Linnean Society 144(2):191-212.

Smith, D.S., L.D. Miller and J.Y. Miller. 1994. The butterflies of the West Indies and South Florida. Oxford University Press, London and New York. 264 pages.

Urquhart, F.A. 1960. The Monarch Butterfly. University of Toronto Press, Toronto, ON. 361 pp.

Vane-Wright, R.I. 1993. The Columbus hypothesis: an explanation for the dramatic 19th century range expansion of the Monarch Butterfly. Pages 179-187 in S.B. Malcolm and M.P. Zalucki, Biology and Conservation of the Monarch Butterfly, Natural History Museum of Los Angeles County, California.

Vidal, O. and E. Rendón-Salinas. 2014. Dynamics and trends of overwintering colonies of the monarch butterfly in Mexico. Biological Conservation 180:165-175. (http://dx.doi.org/10.1016/j.biocon.2014.09.041)

Zhan, S., W. Zhang, K. Niitepõld, J. Hsu, J. Fernández Haeger, M.P. Zalucki, S. Altizer, J.C. de Roode, S.M. Reppert, and M.R. Kronforst. 2014. The genetics of monarch butterfly migration and warning colouration. Nature 514(7522):317-321.