Peer-reviewed published literature which uses the Thanksgiving Count dataset
Crone, E. E., E. M. Pelton, L. M. Brown, C. C. Thomas, and C. B. Schultz. 2019. Why are monarch butterflies declining in the west? understanding the importance of multiple correlated drivers. Ecological Applications: A Publication Of The Ecological Society Of America 29:e01975. PDF
Pelton, E. M., C. B. Schultz, S. J. Jepsen, S. H. Black, and E. E. Crone. 2019. Western monarch population plummets: status, probable causes, and recommended conservation actions. Frontiers In Ecology And Evolution 7:258.
Schultz, C.B., L.M. Brown, E. Pelton, and E.E. Crone. 2017. Citizen science monitoring demonstrates dramatic declines of monarch butterflies in western North America Biological Conservation. 214:343-346.
Espeset, A.E., J.G. Harrison, A.M. Shapiro, C.C. Nice, J.H. Thorne, D.P. Waetjen, J.A. Fordyce, and M.L. Forister. 2016. Understanding a migratory species in a changing world: climatic effects and demographic declines in the western monarch revealed by four decades of instensive monitoring. Oecologia. 2016 Mar 21:1-2.
Jepsen, S. and S.H. Black. 2015. Understanding and conserving the western North American monarch population. In Oberhauser, K.S., K.R. Nail, and S.M. Alitizer, eds. Monarchs in a Changing World: Biology and Conservation of an Iconic Insect. Ithaca, USA: Cornell University Press.
Ries, L. and K. Oberhauser. 2015. A citizen army for science: quantifying the contributions of citizen scientists to our understanding of monarch butterfly biology. BioScience 65: 419-430.
Stevens, S.R. and D. Frey. 2010. Host plant pattern and variation in climate predict the location of natal grounds for migratory monarch butterflies in western North America. Journal of Insect Conservation 14: 731-744.
Vandenbosch, R. 2007. What do monarch population time series tell us about eastern and western population mixing? Journal of the Lepidopterists’ Society 61(1): 28-31.
Koenig, W. 2006. Spatial synchrony of monarch butterflies. The American Midland Naturalist 155(1): 39-49.
Frey, D. and A. Schaffner. 2004. Spatial and temporal patterns of monarch overwintering abundance in Western North America. In Oberhauser, K.S. and M.J. Solensky, eds. The Monarch Butterfly: Biology and Conservation. Ithaca: Cornell University Press.