Are female monarch butterflies declining in eastern North America? Evidence of a 30-year change in sex ratios at Mexican overwintering sites

First Author: 

  • Davis

Type: 

  • Article

Year: 

2010

Source: 

  • Biology Letters

Category: 

  • Monarch research, Population dynamics

Full Reference: 

Davis AK, Rendon-Salinas E. 2010. Are female monarch butterflies declining in eastern North America? Evidence of a 30-year change in sex ratios at Mexican overwintering sites. Biology Letters 6: 45-47.

Online citation: 

http://scholar.google.com/scholar?cluster=8972050953488056877&hl=en&as_sdt=0%2C2…

Study Setting: 

  • Field

Geographic Focus: 

  • Mexican Overwintering

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