@misc{indiciaefcfce4547357,
  title = {Short-term monitoring of aridland lichen cover and biomass using photography and fatty acids},
  author = {M. A. Bowker and N.C. Johnson and J. Belnap and G.W. Koch},
  year = {2008},
  doi = {10.1016/j.jaridenv.2007.11.006},
  url = {https://pubs.usgs.gov/publication/70031827},
  note = {Source identifier: 70031827}
}