While these two deserts both experience an arid climate, they also have many differences.. Area. The Sonoran Desert has an area of about 311,000 square kilometers (120,000 sq mi). The Chihuahuan Desert has an area of about 362,000 square kilometers (139,769 sq mi).. Elevation. The Sonoran Desert is lower in elevation that the Chihuahuan Desert, with some parts (in the USA) lying below sea level. The Chihuahuan Desert varies in elevation from 600-1675 m (1969-5495 ft).. Summer temperatures. The Sonoran Desert tends to have higher summer temperatures than the Chihuahuan Desert, though even in the Chihuahuan Desert, daytime temperatures in summer are usually between 35 and 40̊C (95-104̊F).. Seasonal rainfall patterns. The ratio of winter to summer rainfall decreases from west to east. Most of the Sonoran Desert (to the west) has a bimodal rainfall regime with spring and summer peaks. On the other hand, most of the limited rain that falls in the Chihuahuan Desert comes in late summer.. The ...
Desert - Environment: Deserts are varied and variable environments, and it is impossible to arrive at a concise definition that satisfies every case. However, their most fundamental characteristic is a shortage of available moisture for plants, resulting from an imbalance between precipitation and evapotranspiration. This situation is exacerbated by considerable variability in the timing of rainfall, low atmospheric humidity, high daytime temperatures, and winds. Average annual precipitation ranges from almost zero in some South American coastal deserts and Libyan deserts to about 600 millimetres (24 inches) in deserts in Madagascar, although most recognized deserts have an annual rainfall below 400 millimetres. Some authorities
SOE have released a new Building Blocks video, rounding up the foundations of their construct-em-up MMO alpha. This time, its to introduce the desert environment; environment being the oldey-timey word we used to use before biomes. As you can see from the video, deserts are big fans of cacti and weird looking trees. Im sure it wont take long for players to put their own spin on the theme.
U.S. Fish & Wildlife ServiceDesert TortoiseGopherus agassizii Desert tortoises, also known as desert turtles or gopher tortoises, currently are found in Arizona, California, Nevada and Utah, as well as parts of Mexico, and in the Mojave, Colorado, Sonoran and Sinaloan deserts. As the result of various human activities over the past 150 years, tortoises have been eliminated or reduced in large portions of their range in California and in areas near Las Vegas and St. George, Utah.Desert tortoise population densities range from just a few per square mile to more than 200 per square mile. Although the number of desert tortoises in the world is unknown, biologists have used estimates of between 500,000 and 2 million.To survive the harsh environment of the hot, dry desert, desert tortoises spend much of the year in burrows dug under shrubs or in caves which provide protection from extreme heat. They emerge in late winter and early spring to feed and reproduce. Desert tortoises eat a variety of native ...
U.S. Fish & Wildlife ServiceDesert TortoiseGopherus agassizii Desert tortoises, also known as desert turtles or gopher tortoises, currently are found in Arizona, California, Nevada and Utah, as well as parts of Mexico, and in the Mojave, Colorado, Sonoran and Sinaloan deserts. As the result of various human activities over the past 150 years, tortoises have been eliminated or reduced in large portions of their range in California and in areas near Las Vegas and St. George, Utah.Desert tortoise population densities range from just a few per square mile to more than 200 per square mile. Although the number of desert tortoises in the world is unknown, biologists have used estimates of between 500,000 and 2 million.To survive the harsh environment of the hot, dry desert, desert tortoises spend much of the year in burrows dug under shrubs or in caves which provide protection from extreme heat. They emerge in late winter and early spring to feed and reproduce. Desert tortoises eat a variety of native ...
The desert climate (in the Köppen climate classification BWh and BWk), is a climate in which there is an excess of evaporation over precipitation. The typically bald, rocky, or sandy surfaces in desert climates hold little moisture and evaporate the little rainfall they receive. Covering 14.2% of earths land area, hot deserts may be the most common type of climate on earth,[1] after polar climate. Although no part of Earth is known for certain to be absolutely rainless, in the Atacama Desert in northern Chile, the average annual rainfall over a period of 17 years was only 5 millimetres (0.20 in). Some locations in the Sahara Desert such as Kufra, Libya record only 0.86 mm (0.034 in) of rainfall annually. The official weather station in Death Valley, United States reports 60 mm (2.4 in), but in a 40-month period between 1931 and 1934 a total of 16 mm (0.63 in) of rainfall was measured. There are two variations of a desert climate: a hot desert climate (BWh), and a cold desert climate (BWk). To ...
Arid environments cover almost half the earths land surface and embrace a considerable range of environmental conditions. Terms such as arid, desert, and dryland are commonly used interchangeably and without strict scientific usage, though "arid" is also used as a formal division of drylands within the widely used classification scheme in UN Environment Programme 1997 (cited under Defining Arid Areas). Arid environments are characterized by an overall moisture deficit, often expressed as annual precipitation being less, often significantly less, than potential evapotranspiration. Consequently, soil moisture levels are low, which has impacts for plant and animal life and for the geomorphic processes that shape arid regions. Systematic scientific study of arid environments grew throughout the 20th century, prompted by the realization of a lack of robust scientific knowledge of these regions, and, from the 1950s and particularly 1970s onward, by concerns surrounding human usage, the occurrence of ...
Discover wild and wonderful foods from the deserts bounty There are hundreds of edible plants in the Sonoran Desert and Native cultures have been harvesting them for food and medicinal purposes for centuries. In fact, cactus fruits in general are known for being high in vitamins A and C, while other parts of desert plants provide good sources of protein.. The best way to identify and experience edible desert plants is with a well-trained guide showing you the way (do not attempt to eat any desert plants unless you are 100 percent certain the plant is edible and that you are preparing it correctly). Most professional Hummer and Jeep tours have guides who are well versed and can show you exactly which plants are safe to eat. Here is a quick look at some of the most recognizable edible desert plants.. ...
The defining precipitation rate for desert is ten inches. Much of the Colorado Desert of southeastern California averages less than four inches of rain in a year.. Plants must find ways to cope with the same daunting conditions that animals face in trying to survive in a desert environment - searing temperatures, desiccating winds, and most important of all - scarcity of lifes elixir - water. The challenge is even greater for plants as they are literally rooted to the ground and unable to move in search of more favorable locations when times get tough. Whether its scorching summer days, freezing winter nights, foraging herbivores or months or even years of rainless drought, desert plants have adapted multiple strategies for existing and even thriving in an arid land.. Water Storage. Some desert plants are adept at efficiently absorbing water during even light rainfalls and storing the water in specialized cells in their stems, leaves or roots. This succulent, water-holding tissue provides the ...
Best stories, art and poetry about sonoran desert. Authors who write about sonoran desert. Other Red Fez members intersted in sonoran desert.
Increased Cattle Grazing in Desert Tortoise Habitat. BARSTOW, Calif.- A judge agreed with conservation groups October 1 and ordered the Bureau of Land Management to hold off on its decision to increase cattle grazing on 136,167 acres of public land. This desert region, known as the Ord Mountain Allotment, includes 101,033 acres of federally protected critical habitat for the desert tortoise, within a Desert Wildlife Management Area that the Bureau is supposed to manage to protect threatened desert tortoises and other imperiled animals and plants.. In his decision, Administrative Law Judge Harvey C. Sweitzer agreed with the conservation groups that the Bureau of Land Managements decision to increase the number of cattle authorized was invalid. The agency had failed to provide a rational basis for an increase in grazing above its own estimates of the carrying capacity of the allotment.. "The Bureau of Land Management cannot continue to make decisions regarding grazing that fail to take into ...
Cold deserts, sometimes known as temperate deserts, occur at higher latitudes than hot deserts, and the aridity is caused by the dryness of the air. Some cold deserts are far from the ocean and others are separated by mountain ranges from the sea and in both cases there is insufficient moisture in the air to cause much precipitation. The largest of these deserts are found in Central Asia. Others occur on the eastern side of the Rocky Mountains, the eastern side of the southern Andes and in southern Australia.[10] Polar deserts are a particular class of cold desert. The air is very cold and carries little moisture so little precipitation occurs and what does fall, usually as snow, is carried along in the often strong wind and may form blizzards, drifts and dunes similar to those caused by dust and sand in other desert regions. In Antarctica, for example, the annual precipitation is about 50 mm (2 in) on the central plateau and some ten times that amount on some major peninsulas.[20]. Based on ...
Borax-rich soil. View over saline (salt-containing) soil containing a high proportion of borax at a salt pan in the Mojave Desert, USA. Borax is a white, monoclinic crystalline mineral composed of hydrated sodium borate. It forms during solar evaporation of saline water bodies, such as lakes and desert salt pans (as seen here). It is the main source of boric acid, which is used as a cleaning product. Photographed near Shoshone, Mojave Desert, California, USA. - Stock Image C014/1584
Modern English usage differentiates a wadi from another canyon or wash by the action and prevalence of water. Wadis, as drainage courses, are formed by water, but are distinguished from river valleys or gullies in that surface water is intermittent or ephemeral. Wadis are generally dry year round, except after a rain. The desert environment is characterized by sudden but infrequent heavy rainfall, often resulting in flash floods. Crossing wadis at certain times of the year can be dangerous as a result.. Wadis tend to be associated with centers of human population because sub-surface water is sometimes available in them. Nomadic and pastoral desert peoples will rely on seasonal vegetation found in wadis, even in regions as dry as the Sahara, as they travel in complex transhumance routes.. The centrality of wadis to water - and human life - in desert environments gave birth to the distinct sub-field of wadi hydrology in the 1990s.[2]. ...
Get information, facts, and pictures about Desert tortoise at Encyclopedia.com. Make research projects and school reports about Desert tortoise easy with credible articles from our FREE, online encyclopedia and dictionary.
Coleonyx v. variegatus is adapted to feed voraciously after deprivation of food and to withstand long periods without food. In 4 days specimens converted enough food into reserves to increase their weight by about 50 percent. Total deprivation of food resulted in very gradual loss of weight, which, if maintained, would result in 4 days of feeding being sufficient to sustain the animal for periods of 6 to 9 months. ...
The poorer the peoples and the less developed the countries involved, the more profound will be the future effects of desertification, and the greater the potential for tragedy when natural conditions, especially climatic, become difficult.. Desertification should be viewed as a breakdown of the fragile balance that allowed plant, human and animal life to develop in arid, semi-arid and dry subhumid zones. This breakdown of the equilibrium and of the physical, chemical and biological processes that sustain it, represents the start of a process of self-destruction for all elements of the life system. Thus soil vulnerability to wind and water erosion, the lowering of the water-table, the impairment of the natural regeneration of vegetation, the chemical degeneration of soils - themselves all immediate results of desertification - worsen the situation. Desertification feeds on itself.. Consequently, the effects of desertification are extremely serious and often dramatic for the poor populations of ...
A desert ecosystem is made up of the non-living elements affected by, and the living organisms adapted to, a climate where less than 10 inches of rain fall a year. These are harsh ecosystems with...
During the late Pleistocene, emergent groundwater supported persistent and long-lived desert wetlands in many broad valleys and basins in the American Southwest. When active, these systems provided important food and water sources for local fauna, supported hydrophilic and phreatophytic vegetation, and acted as catchments for eolian and alluvial sediments. Desert wetlands are represented in the geologic record by groundwater discharge deposits, which are also called spring or wetland deposits. Groundwater discharge deposits contain information on the timing and magnitude of past changes in water-table levels and, thus, are a source of paleohydrologic and paleoclimatic information. Here, we present the results of an investigation of extensive groundwater discharge deposits in the central Mojave Desert at Valley Wells, California. We used geologic mapping and stratigraphic relations to identify two distinct wetland sequences at Valley Wells, which we dated using radiocarbon, luminescence, and ...
The scope of this page is to provide links to information and images of most or all of the plant species native to the Sonoran Desert of southwestern Arizona. Currently, not all the species in this region are on the list, but more will be added from time to time. Information and images for species already on the list are continually being added and updated. Because of this, be sure to check back occasionally.. The plant identification page and the plant images are meant to be only a first step in the identification process. In spite of our best efforts, it is not possible to insure that 100% accuracy in identifying unknown plants can be obtained by using search keys and photographs. When it is of critical importance to be absolutely sure of the identification of a plant, a specimen must be examined by a professional botanist and verified at a recognized herbarium.. * Specie page has photos.. Questions and comments are encouraged. If you have any of these or are in disagreement with any ...
The scope of this page is to provide links to information and images of most or all of the plant species native to the Sonoran Desert of southwestern Arizona. Currently, not all the species in this region are on the list, but more will be added from time to time. Information and images for species already on the list are continually being added and updated. Because of this, be sure to check back occasionally.. The plant identification page and the plant images are meant to be only a first step in the identification process. In spite of our best efforts, it is not possible to insure that 100% accuracy in identifying unknown plants can be obtained by using search keys and photographs. When it is of critical importance to be absolutely sure of the identification of a plant, a specimen must be examined by a professional botanist and verified at a recognized herbarium.. * Specie page has photos.. Questions and comments are encouraged. If you have any of these or are in disagreement with any ...
Uncurated}} [[Image: Soil_crust_5yr.jpg‎ , thumb , 300px , right , Five year old cyanobacteria dominated soil crust by Langhans, T., Storm, C., & Schwabe, A.]] ==Introduction== Biological soil crusts (BSC) are large complex communities of cyanobacteria, algae, bryophytes, [[http://microbewiki.kenyon.edu/index.php/Lichens lichens]], mosses, [[http://microbewiki.kenyon.edu/index.php/Bacteria bacteria]], and fungi. These diverse collections of microbes occur all over the world in arid and semi-arid regions, which comprise more than 35% of all terrestrial land. The microbial community that inhabits the upper and bottom few millimeters of soil can comprise up to 70% of the living cover in arid regions. BSC can play an important role in desert environments as they increase the nutrient content of soils, stabilizing soil surfaces, as well as prevent soil erosion. BSC are also known as cryptogamic, microbiotic, cryptobiotic, and microphitic crust. It is important to distinguish BSC as a formation of ...
In this article I detail how listening to a landscape, and speaking for a landscape, can be achieved in creative geographical practice. In the penultimate section of the article, readers get a chance to listen to the Mojave Desert answer a question about death. This is an experiment in the process of personifying a cultural geographical concept-landscape-such that the desert itself, in all of its micro-detail, becomes woven together into a character with something to say. How does a landscape talk? It talks through human voices, and human thoughts and emotions and perspectives. A human author must put pen to paper, something that the abstract, culturally constructed category "landscape" cannot do. As a concept, landscape relies on the admission that it objectifies a swath of territory and separates it from a seeing, analytic human, a point refreshed by the native Pueblo writer Leslie Marmon Silko. When Silko talks about the relationship between Pueblo cultures and the land, the landscape is ...
Roughly 22 million years ago, at the onset of the Miocene, the Tibetan Plateau started to lift upward. The rising land curbed the flow of moist air from the south, sparking the onset of central Asian desertification. Or, perhaps, the supposedly arid region to the northeast of the Tibetan Plateau harbored shallow lakes or wetlands until as recently as 8 million years ago, at which point the historical desertification was initiated by some other mechanism. The current debate between these two proposals, of either a 22- or 8-million-year-old onset of desertification, hinges, to a sizeable degree, on the history of the fine sediments of the Tianshui Basin in central China. One line of research, which looked at grain sizes, rock magnetic properties, and bulk geochemistry, among other factors, suggested that the early Miocene sediments were transported to the Tianshui Basin by the wind. The existence of wind-borne sediment, known as loess, would support the 22- million-year desertification hypothesis. ...
Land degradation and desertification has been ranked as a major environmental and social issue for the coming decades. Thus, the observation and early detection of degradation is a primary objective for a number of scientific and policy organisations, with remote sensing methods being a candidate choice for the development of monitoring systems. This paper reviews the statistical and ecological frameworks of assessing land degradation and desertification using vegetation index data. The development of multi-temporal analysis as a desertification assessment technique is reviewed, with a focus on how current practice has been shaped by controversy and dispute within the literature. The statistical techniques commonly employed are examined from both a statistical as well as ecological point of view, and recommendations are made for future research directions. The scientific requirements for degradation and desertification monitoring systems identified here are: (I) the validation of methodologies in a
Phospholipid molecular species and headgroup compositions were determined for sarcoplasmic reticular and microsomal membranes in two species of Sonoran desert cyprinid fish (Agosia chrysogaster Girard and Notropis lutrensis Girard) trapped in an isolated pool of a desert stream. Fish populations were sampled in the cool of the morning (water temperature 21-21.9°C for Agosia and 22-26°C for Notropis) and 7-11 h later in the heat of the afternoon (water temperature 34.2°C) to determine whether membrane lipid composition varied with sampling time and thermal exposure. The composition of sarcoplasmic reticular membranes did not vary significantly through the day. In contrast, the molecular species composition of muscle microsomes (a mixture of endoplasmic reticulum and plasma membranes) changed markedly from the cool of the morning to the heat of the afternoon in both species. Adjustments were particularly striking in phosphatidylcholine (PC). For example, in Agosia, the ratio of ...
Description:This field course explores the plants, animals, and landforms of the Mojave Desert and demonstrates wildlife surveying techniques. Accommodations are in a combination of outdoor tent camping for two nights and dorm-style housing for four nights at the Desert Studies Center (DSC) and one night at the Sierra Nevada Aquatic Research Lab (SNARL). Students will need to provide their own tents and bedding materials as well as meals when not at the DSC. At the DSC and SNARL students will need their own bedding materials. The course involves strenuous hikes in rocky desert environment conditions in temperatures above 100 degrees during the day. A field station expense cost of $325.00 is due three weeks prior to the first day of class to cover the price of accommodations at DSC and SNARL, meals at the DSC, campsite reservations, entrance costs to parks, and transport to the Center and field sites. An application packet must be completed for this class prior to receiving a permission number to ...
The harvester termite, Anacanthotermes ubachi Navas (Hodotermitidea) occurs throughout the desert regions of Israel. This species nests in subsurface galleries where dead plant material, the termites main food source, and feces are stored. We measured potential net nitrogen (N) mineralization and nitrification and soil respiration in 7-day laboratory incubations of plant litter at different stages of termite processing, termite feces and termite gallery soil (carton) following wetting. Our objectives were (1) to characterize the amount of potential N release from termite-affected plant and soil materials, (2) to evaluate the potential for leaching of N from the galleries and (3) to make a preliminary evaluation of the importance of termites to the carbon (C) and N cycles of the Negev desert. Two distinct phases were seen in the dynamics of inorganic N during the 7 day incubations: (1) release of N following wetting and (2) immobilization of N from day 1 to day 7 of the incubation. The percent ...
Flowering Yucca Plant, Mojave Desert, Southern California Photographic Print by Sam Abell. Find art you love and shop high-quality art prints, photographs, framed artworks and posters at Art.com. 100% satisfaction guaranteed.
Fort Irwin is a U.S. army base nearly the size of Rhode Island, located in the Mojave Desert about an hours drive northeast of Barstow, California. There you will find the National Training Center , or ...
In all deserts there is very little water for plants to use. But not all deserts are dry. In the Far North there are deserts even where there is much water in the soil. But a few inches below the top of the ground the water is always frozen. There are other deserts that have water, but it is too salty for plants to use..One such desert is near Great Salt Lake in Utah. But most people think of hot, dry deserts when they hear the word "desert." The Sahara in Africa is the worlds largest hot, dry desert. The Gobi Desert in Asia is another very large one ...
Ive been enjoying reading the various posts and leads as to the desert diet of John the Baptist. I especially enjoyed reading about the desert monks and their complete dependence on desert grasses and flowers. There is very little literature that I know of as to the Jewish/Torah counterpart in the early first century as to the eating of locusts and grasshoppers. There seems to be much more literature from Gentile Christian sources in the use of available desert plants ...
Photographic images and information about Long-tailed Brush Lizard, Urosaurus graciosus, in the Sonoran Desert in Arizona and Sonora.
The summer rains of 2008 were quite generous across much of the Sonoran Desert. As a result plants and the insects that feed upon them have grown and reproduced in abundance. Even species that are rather scarce in most years are showing up in numbers. This grasshopper feeds on members of the Asteraceae. ...
The taxonomic position of a Streptomyces strain isolated from a hyper-arid desert soil was established using a polyphasic approach. The organism had chemical and morphological properties typical of th
Let me show some interesting floras which can live in the dry environment on Facts about Desert Plants. The arid environment is characterized with the presence
2. Lack of experience.. Having been in, or close to deserts operationally for most of a decade in the Oman Army and having owned my own camel company I think I have a reasonable idea of what the topic involves. I also have 10 years experience in The Royal Marines. Much of that was spent in another type of desert environment; The Arctic. I have the utmost respect for the desert and for the plant and animal life that clings to it. To this end I would ask everyone to take care with its finite resources and to leave it in as good a condition as when you entered it. Please take all rubbish with you and any that you see if thats possible. Al Ain is on the edge of a huge and dangerous desert; The Empty Quarter or Rub Al Qali. In summer temperatures reach a brain fuddling, searing, 55 plus, though it can get cold at night in winter. The desert however is a beautiful place in which to drive, camp and explore provided you take some basic precautions. There must be at least two 4x4 fully equipped ...
An explosion of wildflowers in Californias desert sands is drawing record crowds to see the rare abundance of color called a super bloom.
Geography. The geographic limits of ironwood distribution are closely matched with the boundaries of the Sonoran Desert. Ironwood barely reaches into adjacent Mohave desertscrub, coastal thornscrub south of Guaymas, Sonora, and foothills thornscrub east of Hermosillo, Sonora. It occurs in five states and territories within the Sonoran Desert region: southwestern Arizona, southeastern California, eastern Baja California, Baja California Sur, and Sonora, Mexico. Populations occur from sea level to 1100 m (3280 ft) in elevation, where low winter temperatures and catastrophic freezes limit its distribution. Near its northern limit ironwood grows best on rocky benches and slopes, above the valley bottoms that characteristically have cold air pockets at night that would damage leaves and young branches (Turner et al. 1995). While ironwood occurs in all six subdivisions of the Sonoran Desert, it varies greatly in its density and relative dominance among these regions. In the U.S., the highest ironwood ...
The dunefield with the tallest dunes in North America spreads across 30 square miles (78 sq. km), a unique high-altitude desert environment surrounded by the other ecosystems listed on this page. These dunes are a place of extremes: the sand surface can reach 150 degrees F (65 degrees C) on a summer afternoon, or drop to minus 20 degrees F (minus 29 degrees C) on a winter night. While the top few inches are often dry, these dunes are moist year-round, kept wet by ongoing precipitation. This 7% moisture content by weight allows species such as Ords kangaroo rat, Great Sand Dunes Tiger Beetle, scurfpea, and blowout grass to survive here. Many animals visit the dunes from other habitats, including elk, pronghorn, bison, coyotes, bobcats, and raptors. Find out more about the geology of Great Sand Dunes. ...
Some of the puzzles that people list for the public get indexed by the search engines (like Google). Some people find those puzzles and cannot figure out how to make a puzzle of their own. So this page now has the navigation sidebar. There are now buttons on the puzzle so that you can get a clean page, in either HTML or PDF, that you can use your browsers print button to print. The PDF format allows the web site to know how large a printer page is, and the fonts are scaled to fill the page. The PDF takes awhile to generate. Dont panic! ...
Previous surveys have identified other biocrusts in the Atacama. But the new crust samples werent like those - analyses revealed lichens, fungi, algae and cyanobacteria enveloping tiny, 6-millimeter pebbles and keeping the pebbles stuck together atop the soil, like a rock-based peanut brittle. Unlike other biocrusts, which form on soil surfaces, grit-crust is "something different that weve not seen before," says Matthew Bowker, an ecologist at Northern Arizona University in Flagstaff not involved in the study. In lab experiments, the team measured the rate at which the crust collectives consumed carbon dioxide with varying amounts of moisture. Photosynthetic activity peaked when a sample had just 0.25 millimeters of water - equivalent to 250 milliliters of water for one square meter of grit-crust - which is within the range expected for deposits from daily fog banks near the coast. By comparison, biocrusts in the Sonoran Desert in Mexico and the U.S. Southwest are most photosynthetically ...
Plants must find ways to cope with the same daunting conditions that animals face in trying to survive in a desert environment.. ...
Action Against Desertification is a new €41 million programme launched in 2014 by the European Union (EU) and FAO in collaboration with the African, Caribbean and Pacific Group of States (ACP) and other partners to tackle the detrimental social, economic and environmental impact of land degradation and desertification. The programme builds on the Great Green Wall for the Sahara and the Sahel Initiative, established in 2007, which has become Africas flagship initiative to combat the effects of climate change and desertification and brings together more than 20 African countries, international organizations, research institutes, civil society and grassroots organizations.. ...
TY - JOUR. T1 - Draft genome sequence of Bacillus sp. strain BSC154, isolated from biological soil crust of Moab, Utah. AU - Bailey, Alexis C.. AU - Kellom, Matthew. AU - Poret-Peterson, Amisha T.. AU - Noonan, Kathryn. AU - Hartnettc, Hilairy E.. AU - Raymond, Jason. PY - 2014. Y1 - 2014. N2 - Bacillus sp. BSC154 was isolated from a biological soil crust near Moab, Utah. The strain appears to be capable of chemotaxis and biofilm production. The BSC154 genome contains iron siderophore production, nitrate reduction, mixed acid-butanediol fermentation, and assimilatory and dissimilatory sulfate metabolism pathways.. AB - Bacillus sp. BSC154 was isolated from a biological soil crust near Moab, Utah. The strain appears to be capable of chemotaxis and biofilm production. The BSC154 genome contains iron siderophore production, nitrate reduction, mixed acid-butanediol fermentation, and assimilatory and dissimilatory sulfate metabolism pathways.. UR - ...
Buy California Desert Flowers (9780520240032) (9780520240025): An Introduction to Families, Genera, and Species: NHBS - Sia Morhardt, J Emil Morhardt, University of California Press
The Atacama Desert is one of the driest and probably oldest deserts on Earth where only a few extremophile organisms are able to survive. This study investigated two terricolous and two epiphytic lichens from the fog oasis
NASA study predicts devastating droughts during the last half of the century http://www.gizmag.com/nasa-drought-study-united-states/36128/ https://www.youtube.com/watch?v=ToY4eeWsdLc WHAT CAUSES DESERTIFICATION? * Overgrazing is the major cause of desertification worldwide. Plants of semi-arid areas are adapted to being eaten by sparsely scattered, large, grazing mammals which move in
Desert plants have adapted to the extremes of heat and aridity by using both physical and behavioral mechanisms, much like desert animals.
One of the most important themes in geography is the relationship between the natural environment and human beings. Land, natural resources, climate, and vegetation are basic tools necessary to human life. The environment in which people live impacts the way they live and the ways they make a living. So, to give a simple, if extreme, example, people who live in deserts develop societies and ways of making a living that fit with the realities of the desert environment.. However, it is also most important to remember that human-environmental interaction is not a one-way affair. The histories of human societies in Africa, as in all other areas of the world, are in part the story of our use and exploitation of resources in our environment, land, minerals, water, plants, animals, and air. The use of the natural environment through cultivation, hunting, grazing, mining, building villages, cities, roads, and through countless forms of pollution can permanently impact the environment. This important ...