<affiliation wicri:level="2"><nlm:affiliation>Jornada Experimental Range, United States Department of Agriculture-Agricultural Research Service (USDA-ARS), P.O. Box 30003, MSC 3JER, Las Cruces, NM 88003-8003, USA. mduniway@usgs.gov</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Jornada Experimental Range, United States Department of Agriculture-Agricultural Research Service (USDA-ARS), P.O. Box 30003, MSC 3JER, Las Cruces, NM 88003-8003</wicri:regionArea>
<placeName><region type="state">Nouveau-Mexique</region>
</placeName>
</affiliation>