Arthur M. Shapiro

image of Arthur M. Shapiro

Distinguished Professor


Center for Population Biology
Evolution and Ecology

Offices and Labs

6347 Storer Hall


1970 PhD Entomology Cornell University
1966 BA Biology University of Pennsylvania

Research Contribution

Basic and applied data on the biology and conservation of butterflies, including endangered or threatened taxa and the conservation and encouragement of the urban-suburban butterfly fauna, and the biology of naturalized exotics

Research Interests

Evolution, ecology, phylogeny, and biogeography of the pierid butterflies. Evolution of seasonality. Insect-host plant interactions. Phenotypic plasticity and canalization. Biogeography of the Andean region and Patagonia. History and philosophy of biology, especially the creation-evolution question.


Fellow, CA Academy of Sciences
Academic Senate Distinguished Teaching Award, UCD
Outstanding Adviser Award, UCD
Fellow, Davis Humanities Institute

Department and Center Affiliations

Center for Population Biology


Fellow,AAAS; Fellow, Royal Entomological Society

CBS Grad Group Affiliations

Population Biology

Specialties / Focus

Population Biology
  • Population Interactions
  • Community Ecology
  • Systematics and Comparative Biology
  • Evolutionary Ecology and Life History Strategies

Graduate Groups not Housed in CBS

Grad. Group. Ecology, and Grad. Group Geography


  • Heather Dwyer, Melissa Whitaker

Field Sites

Andean region from Colombia to Tierra del Fuego; Patagonia; Western, eastern and boreal North America

Teaching Interests

Ecology of tropical latitudes. Systematics. Biogeography. Evolution of ecological systems. One-time seminars on biotic responses to global change, philosophical issues in biology including postmodernism, structuralism and Marxism, phylogeography, the genetics and linguistics of the peopling of the Americas, post-Pleistocene range dynamics, and the role of host specialization in speciation of phyto


EVE 138 Eco Trop Latitudes
EVE 141 Principles Systematics
EVE 147 Biogeography
EVE 149 Evol Ecol Syst
EVE 220 Species and Speciation
EVE 190 Undergraduate Seminar (I)
PBG 296 Seminar in Geographical Ecology (III)

Personal Interests

Ecology and phenology of butterflies website
Politics and sociology of the Southern Cone of South America


7/19/2012 10:41:31 AM
  • Gompert,Z., C.C.Nice, J.A.Fordyce, M.L.Forister and A.M.Shapiro.2006. Identifying units for conservation using molecular taxonomy: the cautionary tale of the Karner Blue butterfly. Molecular Ecology 15: 1759- 1768.
  • Gompert,Z., J.A. Fordyce, M.L.Forister, A.M. Shapiro and C.C. Nice. 2006. Homoploid hybrid speciation in an extreme habitat. Science 314: 1923-1925.
  • Oliver, J.C. and A.M. Shapiro. 2007. Genetic isolation and cryptic variation within the Lycaena xanthoides species-group (Lepidoptera: Lycaenidae). Molecular Ecology 16: 4308-4320.
  • Shapiro, A.M., M.L. Forister and J.A. Fordyce. 2007. Extreme high-altitude Asian and Andean Pierid butterflies are not each others' closest relatives. Arctic, Antarctic and Alpine Research 39: 137-142.
  • Shapiro, A.M. and T.D. Manolis. 2007. Field Guide to the Butterflies of the San Francisco Bay and Sacramento Valley Regions. California Natural History Guides, University of California Press, Berkeley and Los Angeles. 346 pp.
  • Forister, M.L., C.C. Nice, J.A. Fordyce, Z. Gompert and A.M. Shapiro. 2008. Considering evolutionary processes in the use of single-locus genetic data for conservation, with examples from the Lepidoptera. Journal of Insect Conservation 12: 37-51.
  • Shapiro, A.M. 2009. The neo-riparian butterfly fauna of western Argentina. Journal of Research on the Lepidoptera 41: 24-30.
  • Shapiro, A.M. 2009. Revisiting the pre-European butterfly fauna of the Sacramento Valley, California. Journal of Research on the Lepidoptera 41: 31-39.
  • Forister, M.L., J.P.Jahner,K.L.Casner,J.S.Wilson and A.M. Shapiro. 2011. The race is not to the swift: long-term data reveal pervasive declines in California's low-elevation butterfly fauna. Ecology 92: 2222-2235.
  • O'Brien, J.M., J.H. Thorne, M.L.Forister and A.M.Shapiro.2011. Once-yearly sampling for the detection of trends in biodiversity: the case of Willow Slough, California. Biological Conservation 144: 2012-2019.
  • Forister,M.L.,J.A.Fordyce,A.C.McCall and A.M. Shapiro. 2011. A complete record from colonization to extinction reveals density-dependence and the importance of winter conditions for a population of Silvery Blues, Glaucopsyche lygdamus. Journal of Insect Science 11, article 130: 1-9.
  • Jahner,J.P.,M.M.Bonilla,K.J.Badik,A.M.Shapiro and M.L.Forister.2011. Use of exotic hosts by Lepidoptera: widespread species colonize more novel hosts. Evolution 65: 2719-2724.
  • Jahner,J.P.,A.M.Shapiro and M.L.Forister.2012. Drivers of hybridization in a 66-generation record of Colias butterflies. Evolution 66: 818-830.