@misc{indiciae6e16b9baf306,
  title = {Monitoring populations of plants and animals},
  author = {J.P. Gibbs and Sam Droege and P. Eagle},
  year = {1998},
  doi = {10.2307/1313297},
  url = {https://pubs.usgs.gov/publication/5223396},
  note = {Source identifier: 5223396}
}