@inbook {51132,
	title = {The Chihuahuan Desert Ecosystem},
	booktitle = {Ensuring Sustainable Development of Arid Lands Through Time},
	volume = {39},
	year = {1999},
	month = {1999},
	pages = {45-85},
	publisher = {New Mexico Journal of Science},
	organization = {New Mexico Journal of Science},
	abstract = {The Chihuahuan Desert is the least known of all the deserts in North America.  It is the largest of the deserts and lies east of the continental divide between two mountain ranges in Mexico, Sierra Madre Occidental on the west and Sierra Madre Oriental on the east.  On the south it borders mountains in Zacatecas and San Luis Potosi and to the north it opens onto  broad valleys, basins, and high plains in New Mexico and west Texas. Because of its high elevation, averaging 1400 m above sea level, it is cooler than the other hot deserts in North America.  Average precipitation is 235 mm/year and annual average temperature is over 18 deg C.  Freezing temperatures in winter characterize the northern part of the desert, but are infrequent in the central and southern regions.  A great variety of animals and plants live in the desert and characterize the wide variety of habitats resulting from the physiographic and climatic conditions found  there.  Much of the vegetation is characterized by desert scrub with grasslands and woodlands in more mesic areas, usually in uplands associated with the small mountains that dot the landscape.  Large numbers of people live in and near the Chihuahuan Desert.  As the human population continues to expand, more and more demands will be placed upon the limited resources of the Chihuahuan Desert.  In this chapter we hope to present the wide variety of life and conditions that make the Chihuahuan Desert.},
	url = {/files/bibliography/558.pdf},
	author = {Reldon F. Beck and Gibbens, Robert P.},
	editor = {Herrera, E.A. and Mexal, J.}
}
@proceedings {51131,
	title = {Mesquite-grassland ecotones in the Chihuahuan Desert},
	volume = {RMRS-P-11},
	year = {1999},
	month = {August 12-14, 19},
	pages = {84-87},
	publisher = {U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station},
	address = {Ogden, UT},
	abstract = {Many plains and uplands of the Chihuahuan Desert in southern New Mexico are in transition from perennial desert grassland to a mesquite <i>(Prosopis glandulosa)- </i>dominated shrubland.  On the Chihuahuan Desert Rangeland Research Center north of Las Cruces, from 1982 to 1996, mesquite aerial cover increased from 1.9 to 4.5\% and density increased from 123 to 176 plants ha<sup>-1</sup>, with recruitment averaging 3.5 plants ha<sup>-1</sup>yr<sup>-1</sup>.  Shrubs encroach into grasslands by individual plants becoming established and, over time, creating patches of mesquite.  These patches expand into islands of mesquite with a greater biodiversity than the surrounding grasslands.  The mesquite islands eventually coalesce into the mesquite "front" and biodiversity decreases.  Thus, the current grass-shrublands may best be considered as ecotones, both spatially and temporally.},
	url = {/files/bibliography/99-001.pdf},
	author = {Reldon F. Beck and R.P. McNeely and Gibbens, Robert P.},
	editor = {McArthur, E. Durant and Ostler, W. Kent and Wambolt, Carl L.}
}
@conference {51814,
	title = {Vegetation changes following 20 years of protection on black grama sites originally grazed at four intensities},
	booktitle = {39th Annual Meeting, Society for Range Management},
	year = {1986},
	month = {1986},
	pages = {110},
	keywords = {black grama sites, changes, vegetation},
	author = {Reldon F. Beck and T.L. Atwood and Gibbens, Robert P.}
}
@proceedings {52143,
	title = {A grazing system for semiarid lands},
	volume = {Vol. 1},
	year = {1978},
	note = {//NMSU//NONE//ProCite field[6]: In},
	month = {1978},
	publisher = {Society of Range Management},
	abstract = {A seasonal suitability grazing system was started on semiarid grassland in 1967.  Ten years of data have not shown it to be superior to yearlong grazing with which it was compared.  Livestock performance was similar on the two systems.  Drought and conservative stocking rates were primarily responsible for the lack of differences between the systems.  Flexibility, a primary component of the seasonal suitability system, allows for specific management of perennial grasses.  Sampling of vegetaion was not intensive enough to detect the observable improvement on the seasonal suitability pastures.},
	keywords = {abstract, abstracts, cattle grazing,management, conference, conference proceedings, conferences, grass, Aristida, grass, Bouteloua, grass, Erioneuron, grass, Sporobolus, grassland, grazing system, grazing system, management,grazing system, proceeding, proceedings, shrub, Xanthocephalum, snakeweed, SEE Xanthocephalum, Gutierrezia},
	author = {Reldon F. Beck},
	editor = {D. H. (ed.) Hyder}
}
