. Bio-ecology. Plant ecology; Animal ecology; Botany; Ecology; Zoology. DESERT PLAINS 281 tacts in Mexico are little understood, but it once occupied large areas of the central plateau, and a considerable number of its dominants extend into Central and South America. The desert plains extend along the southern line of the mixed prairie in the central regions of New Mexico and Arizona, though direct contact is prevented for long distances by mountain ranges in western New IVIexico and the Mogollon Rim in Arizona. Where bar- riers do not intervene, the two grasslands combine in a wide
. Bio-ecology. Plant ecology; Animal ecology; Botany; Ecology; Zoology. DESERT PLAINS 281 tacts in Mexico are little understood, but it once occupied large areas of the central plateau, and a considerable number of its dominants extend into Central and South America. The desert plains extend along the southern line of the mixed prairie in the central regions of New Mexico and Arizona, though direct contact is prevented for long distances by mountain ranges in western New IVIexico and the Mogollon Rim in Arizona. Where bar- riers do not intervene, the two grasslands combine in a wide Fig. 65.—Desert plains dominated by Bouteloua eriupuda; southwestern Texas. (Photo by Edith Clements.) and a similar condition obtains where the desert plains swing around the western flank of the mixed prairie at the edge of the Colorado valley. From northern Mexico to northern Arizona it faces the desert climax of Larrea and its associates. Climate. High temperatures during the summer and mild to warm winters in the western portion are responsible for the impression of a desert climate, together with the low humidity and the correspond- ing high evaporation. But the annual rainfall confirms the evidence drawn from the climax vegetation to the effect that the climate is that of xeric grassland, unmatched in this respect elsewhere in the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Clements, Frederic E. (Frederic Edward), 1874-1945; Shelford, Victor E. (Victor Ernest), b. 1877. New York, J. Wiley & Sons, inc. ; London, Chapman & Hall, limited
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Keywords: ., bookcentury1900, booksubje, booksubjectbotany, booksubjectzoology
