Results 121 to 130 of about 1,382 (179)
Some of the next articles are maybe not open access.
Life Spans of Dipodomys and Perognathus in the Mojave Desert
Journal of Mammalogy, 1967Rodent populations were studied by live-trapping in four 20-acre plots for a 2½-year period. Three of the plots were fenced to prevent dispersal. One of the fenced areas was irradiated at a low level; the rodents received an average of 1 r/day. The life span of a rodent was defined as the time between the first and last appearance in the trapping ...
N R, French, B G, Maza, A P, Aschwanden
openaire +2 more sources
Nitrogen allocation in Mojave Desert winter annuals
Oecologia, 1981Nitrogen contents and allocation were examined in winter annuals at two Mojave Desert sites near Boulder City, Nevada. Application of 10 g N m-2 as NH4NO3 increased production 0- to 7-fold in species growing on a sandy soil (an Entisol) but fertilizer had no effect on plants on an alluvium (an Aridisol).
Roberta B, Williams, Katherine L, Bell
openaire +2 more sources
Regression-Tree Modeling of Desert Tortoise Habitat in the Central Mojave Desert
Ecological Applications, 2000This paper describes an interdisciplinary study of the habitat requirements of threatened desert tortoises (Gopherus agassizii) on eight 225-ha study plots in a 14 000 ha study area near the southern boundary of the U.S. Army's National Training Center at Fort Irwin in the central Mojave Desert of southern California.
Mark C. Andersen +6 more
openaire +1 more source
Luminescence dating of mojave desert sands
Quaternary Science Reviews, 1995Abstract Infra-red stimulated luminescence has been used to date periods of sand deposition in the Mojave Desert, California. Dates from the Cronese Basins, Kelso Dunes and Silver Lake are compared with published IRSL ages to provide evidence for discrete pulses of sand accretion during the late Pleistocene and Holocene, linked to both arid and ...
M.L. Clarke +2 more
openaire +1 more source
GEOMORPHOLOGY OF CIMA DOME, MOJAVE DESERT, CALIFORNIA
Geological Society of America Bulletin, 1957Cima Dome, a remarkably smooth symmetrical alluvium-fringed rock dome in the desert of southeastern California, is the prototype of Davis' granitic desert dome, supposedly convex and presumably developed by backwearing of a granitic fault block. Transit-stadia profiles across Cima Dome show concave or essentially straight slopes and demonstrate that it
openaire +1 more source
Soil Temperature Regimes of the Mojave Desert
Soil Science, 2010Abstract: Soil temperature is an important attribute of classifying andassessingsoilresources.Itisakeyenvironmentalfactortodeterminesoilformation and natural distribution of plants. The spatial distribution ofsoil temperature regimes is essential for accurate identification of soilsand inventory of natural resources.
Yanying Bai +6 more
openaire +1 more source
Soil resource heterogeneity in the Mojave Desert
Journal of Arid Environments, 2002Heterogeneity of soil resources was investigated in the Mojave Desert to better understand spatial variability of soil attributes in a Larrea tridentata– Ambrosia dumosa community. Six soil samples were collected at each of eight microsites, with this sampling scheme replicated for three sites that were 0?7 km apart on a 10-km long bajada.
Titus, J. H. +2 more
openaire +2 more sources
Clay Minerals in Playas of the Mojave Desert, California
Science, 1959Montmorillonite, illite, chlorite, and kaolinite in the playas of southern California are traceable directly to the source areas surrounding the basins. No evidence found in this investigation suggests that these clay minerals are unstable in the sodic or calcic saline lake environment, but this conclusion may not be directly applied to marine ...
openaire +2 more sources
Survival of Winter Annuals in the Northern Mojave Desert
Ecology, 1967Following early autumn germination in Mojave Desert winter annual populations (53 taxa) sampled on 13 plots (total sample size, 16.4 m2) in three drainage basins in southern Nevada, 1963—64, there was 38% survival to maturity (plot range 10—63%). Death occurred in early spring, at the time of shift from the slow vegetative growth of winter to the ...
openaire +2 more sources
NITRATE DISTRIBUTION IN MOJAVE DESERT SOILS
Soil Science, 1982Extensive sampling shows high variability in nitrate concentration within profiles of Mojave Desert soils. This high variability greatly complicates studies of desert soil N and its ecological role. Patterns in nitrate distribution suggest effects of litter decomposition under shrubs, surface leaching in bare areas, and plant uptake in the root zone ...
RICHARD B. HUNTER +2 more
openaire +1 more source