Library

Welcome to the monarch library! Our goal is to include all peer-reviewed articles on monarch biology with links to sites that will give you the easiest direct access to each article. Please contact leslie.ries@georgetown.edu if you 1) know of an article not included, 2) find a mistake in any of the listed articles, 3) know of a better link to access an article. Thanks! With your help we can provide the most complete, informative access to all papers on monarch biology.

Field Definitions

First author: Last name of the first author
Type: Article or book chapter
Year: Publication year
Source: Journal or book
Category*: Broad scope of the publication.
Research topic (monarch & supporting research only)*: Specific topic.
Geographic focus*: Geographic setting for field studies.
Monitoring data used: Data from monitoring or public data efforts.
* Full list

12 result(s)
Category: Commentary or review
Type: Article
Year: 2021
Crone EE, Schultz CB. Resilience or Catastrophe? A possible state change for monarch butterflies in western North America. Ecology Letters. 2021;24:1533–1538. https://doi.org/10.1111/ele.13816

Category: Resource use, Environmental performance, Evolution/range, Migration, Population dynamics, Hostplant dynamics
Type: Article
Year: 2019
Dilts TE, Steele MO, Engler JD, Pelton EM, Jepsen SJ, McKnight SJ, Taylor AR, Fallon CE, Black SH, Cruz EE, Craver DR, and ML Forister. 2019. Host Plants and Climate Structure Habitat Associations of the Western Monarch Butterfly. Frontiers in Ecology and Evolution 29 May 2019 | https://doi.org/10.3389/fevo.2019.00188

Category: Commentary or review, Overwinter dynamics, GMO/toxins, Monarch research
Type: Article
Year: 2019
Pelton EM, Schultz CB, Jepsen SJ, Black SH, and EE Crone. 2019. Western Monarch Population Plummets: Status, Probable Causes, and Recommended Conservation Actions. Frontiers in Ecology and Evolution 03 July 2019 | https://doi.org/10.3389/fevo.2019.00258

Category: Evolution/range, Orientation, Migration
Type: Article
Year: 2019
Billings, J. 2019. Opening a window on southwestern Monarchs: fall migrant Monarch butterflies, Danaus plexippus (L.), tagged synchronously in southeastern Arizona migrate to overwintering regions in either southern California or central Mexico. Journal of the Lepidopterists' Society 73(4):257-267.

Category: Population dynamics
Type: Article
Year: 2017
Schultz CB, Brown LM, Pelton E, Crone EE. Citizen science monitoring demonstrates dramatic declines of monarch butterflies in western North America. Biological Conservation. 2017 Oct 1;214:343-6.

Category: Migration
Type: Article
Year: 2017
James, DG. 2017. Two Monarchs: two amazing journeys! News of the Lepidopterists' Society 59(2):84-87

Category: Population dynamics
Type: Article
Year: 2016
Espeset AE, Harrison JG, Shapiro AM, Nice CC, Thorne JH, Waetjen DP, Fordyce JA, Forister ML. Understanding a migratory species in a changing world: climatic effects and demographic declines in the western monarch revealed by four decades of intensive monitoring. Oecologia. 2016 Mar 21:1-2.

Category: Monarch research, Population dynamics
Type: Book Chapter
Year: 2015
Jepsen S, Black SH. 2015. Understanding and conserving the western North American monarch population in Oberhauser KS, Nail KR, Altizer SM, eds. Monarchs in a Changing World: Biology and Conservation of an Iconic Insect. Ithaca, USA: Cornell University Press.

Category: Population dynamics
Type: Article
Year: 2014
Monroe M, Frey D, Stevens S. 2014. Western Monarch Thanksgiving Count Data from 1997-2012. URL: http://www.westernmonarchcount.org/data/(accessed 11 Aug 2015)

Category: Monarch research, Population dynamics
Type: Article
Year: 2010
Stevens SR, Frey DF. 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.

Category: Monarch research, Population dynamics
Type: Article
Year: 2007
Vandenbosch R. 2007. What do monarch population time series tell us about eastern and western population mixing? Journal of the Lepidopterists Society 61: 28.

Category: Monarch research, Population dynamics
Type: Book Chapter
Year: 2004
Frey D, Schaffner A. 2004. Spatial and Temporal Pattern of Monarch Overwintering Abundance in Western North America. Pages 167-176 in Oberhauser KS, Solensky MJ, eds. The Monarch Butterfly: Biology and Conservation. Ithaca: Cornell University Press.



This database is a work in progress and is likely to contain several omissions and mistakes.
Please contact leslie.ries@georgetown.edu with any additions or corrections.