@misc{indiciae05ff8d356685,
  title = {Population trends of the mantled howler monkey groups of La Pacifica, Guanacaste, Costa Rica},
  author = {M. R. Clarke and E. L. Zucker and N.J. Scott},
  year = {2005},
  doi = {10.1002/ajp.1350110108},
  url = {https://pubs.usgs.gov/publication/1007560},
  note = {Source identifier: 1007560}
}