Data Contributors

Species Occurrences Database

Data for the Western Monarch and Milkweed Occurrences Database upon which this website is built were gathered from a wide variety of individuals, agencies, herbaria, online databases and reports, including the following:

  • Arizona Bureau of Land Management
  • Participants of the Biodiversity Information Serving our Nation (BISON) (Arizona State University: Arizona State University Vascular Plant Herbarium, BLM – NISIMS Plants, BLM –Landscape Monitoring Framework – Plant Occurrence Records, Colorado State University: Colorado State University Herbarium, Denver Botanic Gardens: Kathryn Kalmbach Herbarium, Emporia State University (KSTC): Emporia State Herbarium/H.A. Stephens Herbarium, Harvard University: Harvard University Herbaria, Louisiana State University: Shirley C. Tucker Herbarium, Lund University (Sweden): Lund Botanical Museum, Missouri Botanical Garden (MO), Naturalis Biodiversity Center: The National Herbarium of the Netherlands (NHN), naturgucker.de: naturgucker.de, New Mexico Biodiversity Collections Consortium, NPS – Inventory and Monitoring Program, New York Botanic Garden: William and Linda Steere Herbarium, Oregon State University: Oregon State University Herbarium, Real Jardín Botánico (MA): Real Jardín Botánico, Royal Belgian Institute of Natural Sciences, Smithsonian Institution: National Museum of Natural History, Staatliche Naturwissenschaftliche Sammlungen Bayer: State Natural Science Collections in Bavaria, University of Alberta: Vascular Plant Herbarium, University of Arizona: University of Arizona Herbarium, University of British Columbia: UBC Herbarium, University of California, Berkley: University Herbarium, University of California, Davis: Bohart Museum of Entomology, University of Colorado: University of Colorado Museum of Natural History, University of Connecticut: George Safford Torrey Herbarium, University of Illinois, Urbana-Champaign: Illinois Natural History Survey, University of Kansas: University of Kansas Biodiversity Institute, University of Washington: Burke Museum Herbarium, Utah State University: Intermountain Herbarium, Utah Valley University: Utah Valley University Herbarium, Yale University: Peabody Museum)
  • Cal Flora
  • California Academy of Sciences
  • Davenport, K. 2012. Butterflies ten years after the McNally Fire. Unpublished report.
  • Global Biodiversity Information Facility (GBIF) (Arizona State University, California Academy of Sciences, Intermountain Herbarium, Missouri Botanical Garden, Utah State University)
  • Horning et al unpublished data
  • Intermountain Flora
  • James, D.G. 2016. Population biology of monarch butterflies at a milkweed-rich summer breeding site in central Washington. Journal of the Lepidopterists Society 70 (3): 182-193.
  • Journey North
  • Idaho Department of Fish and Game
  • iNaturalist
  • The Nature Conservancy
  • Members of the D-PLEX listserv
  • Members of the Western Monarchs listserv
  • Missouri Botanic Garden
  • Monarch Larva Monitoring Project (University of Minnesota Monarch Lab)
  • Oregon Flora
  • Oregon State University
  • Participants of the Consortium of California Herbaria (Cal State Northridge, California Academy of Sciences, California Polytechnic State University, Carl W. Sharsmith Herbarium, Catalina Island Conservancy, Chico State Herbarium, Dudley Herbarium, Humboldt State University Herbarium, Jasper Ridge Biological Preserve, Joshua Tree National Park Herbarium, Pasadena City College, Pomona Herbarium, Rancho Santa Ana Botanic Garden, Riverside Metropolitan Museum, San Diego Natural History Museum, Santa Barbara Botanic Garden, Sweeney Granite Mountains Research Center, UC Berkeley Jepson Herbarium, UC Berkeley University Herbarium, UC Davis, UCLA Herbarium, UC Riverside, UC Santa Barbara, Victor Valley College, Yosemite N.P. Herbarium; http://ucjeps.berkeley.edu/consortium/)
  • Participants of the Consortium of Pacific Northwest Herbaria (Eastern Washington University, Montana State University, Oregon State University Herbarium, Reed College, University of British Columbia, University of Idaho Stillinger Herbarium, University of Puget Sound, University of Washington Burke Museum, University of Washington Herbarium, University of Wyoming Rocky Mountain Herbarium, Washington State University Marion Ownbey Herbarium, Western Washington University Pacific Northwest Herbarium; www.pnwherbaria.org)
  • Participants of the Xerces Online Milkweed Survey (http://www.xerces.org/milkweedsurvey/)
  • Participants of the Southwest Environmental Information Network, SEINet (Appalachian State University I.W. Carpenter, Jr. Herbarium, Arizona State University, Brigham Young University, Chicago Botanic Garden, Clemson University Herbarium, Cochise County Herbarium, Coconino National Forest Herbarium, Colorado State University Herbarium, Desert Botanical Garden, Eastern Nevada Landscape Coalition, Fort Lewis College Herbarium, Gila Center for Natural History Herbarium, Gila National Forest Herbarium, Grand Canyon National Park, Herbario de la Universidad de Sonora, Huntington Botanical Gardens Herbarium, Illinois Natural History Survey, Jemez Mountain Herbarium, Kathryn Kalmbach Herbarium, Madrean Archipelago Biodiversity Assessment, Mississippi State University, Museum of Northern Arizona, National Park Service, Navajo Nation Herbarium, New Mexico State University Herbarium, New Mexico State University Center for Natural History Collections Range Science Herbarium, New York Botanic Garden, Northern Arizona University, Northern Arizona University Deaver Herbarium, R.M. Myers Herbarium, Rocky Mountain Biological Laboratory, Rocky Mountain Herbarium, Sagehen Herbarium, San Diego State University, San Juan College Herbarium, Shirley C. Tucker Herbarium at Louisiana State University, Snow College Herbarium, Sonoran Atlas, Southern Utah University, Southwestern Research Station, University of Arizona, University of California Riverside, University of Nevada Herbarium, University of New Mexico, University of South Carolina A. C. Moore Herbarium, USFS SW Region, Utah State University, Utah State University Intermountain Herbarium, Utah State University Uintah Basin, Utah Valley State College; http//:swbiodiversity.org/seinet
  • Participants of the 2015 USFWS Excel Survey
  • Pyle, R. M. 1999. Chasing Monarchs: Migrating with the Butterflies of Passage. Houghton Mifflin Company, New York.
  • Southwest Monarch Study
  • University of Alabama Biodiversity and Systematics
  • University of Alberta Museums
  • University of Arizona Herbarium
  • University of British Columbia Herbarium (UBC)
  • University of Connecticut
  • University of Kansas Biodiversity Institute & Natural History Museum
  • University of Nevada Herbarium
  • USDA Plants
  • US Fish and Wildlife Service (Regions 1, 2, and 8)
  • US Forest Service (Regions 3 and 6)
  • Utah State University
  • Washington Department of Fish and Wildlife
  • The Xerces Society for Invertebrate Conservation