This dataset contains confirmed observations of amphibian species at
the Hubbard Brook Experimental Forest and adjacent Mirror Lake. The
original is was published as Holmes, R. T. and G. E. Likens. 1999.
Organisms of the Hubbard Brook Valley, New Hampshire. USDA Forest
Service, Northeastern Research Station, General Tech. Report NE-257.
32 pp. The list is updated here (January 2021) to include additional
species observed since the original publication, update taxonomic
classifications, and provide annotations on distribution.