@misc{indiciae9d70ff5c0c4a,
  title = {Interpreting surveys to estimate the size of the monarch butterfly population: Pitfalls and prospects},
  author = {John M. Pleasants and Myron P. Zalucki and Karen S. Oberhauser and Lincoln P. Brower and Orley R. Taylor and Wayne E. Thogmartin},
  year = {2017},
  doi = {10.1371/journal.pone.0181245},
  url = {https://pubs.usgs.gov/publication/70190008},
  note = {Source identifier: 70190008}
}