Amphibians and reptiles of Jornada Experimental Range, New Mexico

TitleAmphibians and reptiles of Jornada Experimental Range, New Mexico
Publication TypeJournal Article
Year of Publication1937
AuthorsLittle, Jr. E.L, Keller J.G.
Date Published1937
Keywordsamphibians, Jornada Experimental Range, reptiles, specimen collections, study
AbstractThis report with respect to 27 species of amphibians and reptiles on the Jornada Experimental Range and 7 additional species in Mesilla Valley, Dona Ana County, New Mexico, is based on collections and notes made by the authors as a spare-time project during 1934 and 1935. From 1931 to 1933, the junior author studied individuals of several species. Fourteen of these species have not been reported previously from this county. Thus, the Dona Ana County list is increased to 9 species of amphibians and 34 of reptiles, more than are known in any other county in New Mexico. The authors' specimen collections of Amyda emoryi and Rana tarahumarae in Mesilla Valley, a part of Rio Grande Valley, are probably the first and second records, respectively, of these two species in this state.The Jornada Experimental Range, where nearly all the authors' collections were made, has its headquarters 23 miles north of Las Cruces. It is an area of 302 square miles at the southern end of Jornada del' Muerto, a plain which extends northward for more than 100 miles. Most of the Jornada range is a plain in the Lower Sonoran life zone, varying in elevation from 4,000 to 4,600 feet and without permanent water, except wells and artificial tanks. San Andres Mountains and foothills along the eastern boundary rise in the Upper Sonoran life zone to 8,000 feet and have a few permanent springs, of which Ropes Spring is best known.