Jeffrey E. Herrick,^* B. T. Bestelmeyer,^* Keith Crossland<sup>*


*</sup>Authors are Research Soil Scientist, jherrick@nmsu.edu (Herrick), and Research Ecologist (Bestelmeyer), USDA-ARS Jornada Experimental Range, MSC 3JER, New Mexico State University, Box 30003, Las Cruces, NM 88003, USA; and Graduate Student, Dept of Plant and Environmental Science, MSC 3Q, Box 30003, New Mexico State University, Las Cruces, NM 88003, USA (Crossland). This work was supported by the NSF Jornada LTER (DEB 0080412) and the USDA-ARS Jornada Experimental Range. Mention of trade names or commercial products in this article is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the US Department of Agriculture.