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2013. Vegetation index differencing for broad-scale assessment of productivity under prolonged drought and sequential high rainfall conditions. Remote Sensing. 5(5):327-341. Abstract
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2009. Vegetation controls on small-scale runoff and erosion dynamics in a degrading dryland environment. Hydrological Processes. 23:1617-1630. Abstract
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1986. Vegetation changes on arid rangelands of the southwestern United States. Proceedings of the Second International Rangeland Congress, Rangelands: A Resource Under Siege. :8-10.
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1985. Vegetation changes on arid rangelands of the Southwest. Rangelands. 7:19-21.
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2005. Vegetation changes in the Jornada Basin from 1858 to 1998. Journal of Arid Environments. 61:651-668. Abstract
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1983. Vegetation changes from 1935 to 1980 in mesquite dunelands and former grasslands of southern New Mexico. Journal of Range Management. 36:370-374.
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1986. Vegetation changes following 20 years of protection on black grama sites originally grazed at four intensities. 39th Annual Meeting, Society for Range Management. :110.
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2008. Vegetation canopy structure from NASA EOS multiangle imaging. AGU 2008 Fall meeting. :B33D-04. Abstract
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1979. Vegetation and soil patterns on a Chihuahuan Desert bajada. The American Midland Naturalist. 101:28-37. Abstract
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1983. Vegetation and edaphic influences on infiltration rates in arid and semiarid rangelands. American Society of Agricultural Engineers, Conference on Advances in Infiltration. :385.
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1986. Vegetation and community types of the Chihuahuan Desert. Second Symposium on Resources of the Chihuahuan Desert Region: United States and Mexico. :20-39. Abstract
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2002. Vegetation and climate characteristics of arid and semi-arid grasslands in North America and their biome transition zone. Journal of Arid Environments. 51:55-78. Abstract
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2005. Variation of soil chemical properties in irrigated and non-irrigated areas of the Laguna region of Mexico. Terra Latinoamericana. 23:429-436. Abstract
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1987. Variation of soil and vegetation with distance along a transect in the Chihuahuan Desert. Journal of Arid Environments. 13:53-63. Abstract
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1994. Variation of clonal, mesquite-associated rhizobial and bradyrhizobial populations from surface and deep soils by symbiotic gene region restriction fragment length polymorphism and plasmid profile analysis. Applied and Environmental Microbiology. 60:1146-1153. Abstract
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1987. Variation in insect densities on desert creosotebush: is nitrogen a factor? Ecology. 68:547-557. Abstract
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2008. Variation in ecological resilience: a fundamental concept for rangeland ecology. Society for Range Management. :1480. Abstract
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1997. Variation in Creosotebush (Larrea tridentata) canopy morphology in relation to habitat, soil fertility and associated annual plant communities. American Midland Naturalist. 137:13-26. Abstract
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2000. Variation in body temperature and thermoregulatory behavior between two populations of the lesser earless lizard, Holbrookia maculata. Contemporary Herpetology. 2000 Abstract
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1995. Variability in soils and vegetation associated with harvester ant (Pogonomyrmex rugosus) nests on a Chihuahuan Desert watershed. Biology and Fertility of Soils. 20:169-173.
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2003. Variability in soil redistribution in the northern Chihuahuan Desert based on Cesium-137 measurements. Journal of Arid Environments. 55:737-746. Abstract
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2000. Variability in soil heat flux from a mesquite dune site. Agricultural and Forest Meteorology. 103:249-264. Abstract
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1933. Values and limitations of clipped quadrats. Ecology. 14:35-39.
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1933. Values and limitations of clipped quadrats. Ecology. 14:35-39. Abstract
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2005. Validation of surface temperature determination with aster thermal infrared data. European Geophysical Society; American Geophysical Union; European Union of Geosciences. Abstract
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1981. Validation of primary production model of the desert shrub Larrea tridentata using soil-moisture augmentation experiments. Oecologia. 51:357-363.. Abstract
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1998. Validation of indicators. Ecosystem Health. :205-209.
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2003. Validation of bidirectional reflectance models using the first scene acquired by the CHRIS sensor over the Jornada Experimental Range. International Geoscience and Remote Sensing Symposium. VII:4425-4427. Abstract
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2003. Validation of an LCTA-compatible approach to military land monitoring. 12th Annual ITAM Workshop. :72. Abstract
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2000. UV-induced fluorescence for the discernment of plant types from pre-and post-digested plant material. 27th Annual Meeting, Federation of Analytical Chemistry and Spectroscopy Societies. :Abstractp.267. Abstract
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1977. UV-B radiation effects on photosynthesis and plant growth. Research Symposium, UV-B Radiation: Biological and Climatic Effects Workshop.
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1974. Utilizing tobosa (Hilaria mutica [Buckl.] Benth.) during the winter and spring. Proceedings of the XII International Grassland Congress. :184-190. Abstract
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2011. Utilizing the tropic interactions of nematodes as indicators of change in soil biota associated with the loss of bouteloua eiopda grasslands. 96th Ecological Society of America Meeting. Abstract
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1983. Utilization of tobosa standing crop by cattle under seasonal-rotation and seasonal-continuous grazing on a semidesert rangeland. 36th Annual Meeting, Society for Range Management. :287. Abstract
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1990. Utilization of linear, prediction procedures to evaluate animal response to grazing systems. Journal of Range Management. 43:396-400.
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2011. The utilization of historical data and geospatial technology advances at the Jornada Experimental Range to support western America ranching culture. Remote Sensing. 3(9):2089-2109. Abstract
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2002. Utilization of historic aerial photography to track long-term vegetation response to rangeland treatments. 87th Annual Meeting, Ecological Society of America. :243. Abstract
