Tracking trends in monarch abundance over the 20th century is currently impossible using museum records

First Author: 

  • Ries

Type: 

  • Article

Year: 

2019

Source: 

  • PNAS

Category: 

  • Commentary or review

Full Reference: 

Ries L, Zipkin EF, and RP Guralnick. 2019. Tracking trends in monarch abundance over the 20th century is currently impossible using museum records. PNAS 116(28):13745-13748. https://doi.org/10.1073/pnas.1904807116

Online citation: 

https://doi.org/10.1073/pnas.1904807116

Study Setting: 

  • Model

Geographic Focus: 

  • Eastern Breeding
Public data were used.

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