@article{ernest2009,
  author  = {Ernest, S. K. Morgan and Valone, Thomas J. and Brown, James H.},
  title   = {Long-term monitoring and experimental manipulation of a {Chihuahuan Desert} ecosystem near {Portal}, {Arizona}, {USA}},
  journal = {Ecology},
  year    = {2009},
  volume  = {90},
  number  = {6},
  pages   = {1708},
  doi     = {10.1890/08-1222.1}
}

@misc{portaldata,
  author = {{Weecology}},
  title  = {{PortalData}: Long-term monitoring and experimental manipulation of a {Chihuahuan Desert} ecosystem},
  year   = {2026},
  url    = {https://github.com/weecology/PortalData},
  note   = {Revision 2bfb1fb182bacda91cffb469472ab510a118cc26; teaching extract for 1988--2014 prepared for EE BIOL C177/C234 on 2026-10-22}
}