Stenglein, J.L., M. De Barba, D.E. Ausband, and L.P. Waits. 2010. Impacts of sampling location within a faeces on DNA quality in two carnivore species. Molecular Ecology Resources. 10:109-114. https://doi.org/10.1111/j.1755-0998.2009.02670.x
This link will direct you to a non-government website that may have different privacy
policies from those of the U.S. Geological Survey.