. Brigham Young University science bulletin. Biology -- Periodicals. Bricham Young Universiti' Science Bulletin . â â A â <Â¥. "^K,. i^'f ' Kij^. 2. A view looking north from tlie nortliwfst cornrr ol the stniK plot. The L'.S. weather tower is seen in the haeki'rounil. Photo hv R. L. Colyer. (JuuL' tliroiigli Dcft'inhcr). This is considerably more than reported by Allred and indicates the great variability of the climate in this area (Fig. 3). Allred et al. ( U)63) reported that 136 percent of the precipitation occurred during the summer months (April through September). Available data
. Brigham Young University science bulletin. Biology -- Periodicals. Bricham Young Universiti' Science Bulletin . â â A â <Â¥. "^K,. i^'f ' Kij^. 2. A view looking north from tlie nortliwfst cornrr ol the stniK plot. The L'.S. weather tower is seen in the haeki'rounil. Photo hv R. L. Colyer. (JuuL' tliroiigli Dcft'inhcr). This is considerably more than reported by Allred and indicates the great variability of the climate in this area (Fig. 3). Allred et al. ( U)63) reported that 136 percent of the precipitation occurred during the summer months (April through September). Available data for 1965-1967 averages per- cent. There may be heavy precipitation occa- sionally during a given month; however, the most consistently moist period .seems to be July and August (Fig. 4). An average of the precipi- tation lor these months for the years is inches per month. The greatest amoimt recorded for one month is inches in Novem- ber 1985. October and June have been the driest months, with an average of onlv inches each month. Temperatures are moderate, rarely exceeding (85° F in summer and reaching 0° upon occasion during the winter. On 1 June U)67, temperatures were below free/.ing and a skiff of snow fell. A freezing storm also occurred on 16 September 1965. Rainier Mesa is therefore subject to the cold fronts which descend across the desert from the northwest and also to the influences in the summer of the hot desert valleys which nearlv surround it. BiOTic Envibonment The following study covering nearlv five years of field work should add to our under- standing of the life history, food habits, home range, behavior, and general ecology of this common western lizard as it occurs in a pinyon- juniper commimity on a high mesa in southern Nevada. The plant eanopv cover on the studv plot at Rainier Mesa (Nevada Test Site) is approxi- mately 60 percent, with Pintts inottojiliijlhi the dominant plant. Other woodv plants such as Artemi
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