Articles tagged with Deserts
A recent study found that organophosphate pesticides used to control desert locusts in Eastern Africa had devastating impacts on honey production, pollinators, and ecosystems. The campaign led to a 78% decline in honey production and an estimated loss of US$500 million in revenue.
A new review reveals that environments beyond greenspaces and bluespaces, such as caves, deserts, and glaciers, have potential health benefits. Short-term exposure to solid-state water landscapes showed little evidence of benefits, while longer-term exposure led to improved emotional states, medical treatments for allergies, and physic...
Researchers have discovered that convection of saline water beneath the surface is responsible for the formation of hexagonal honeycomb patterns in salt deserts. The consistent size and shape of these patterns can be attributed to the unique combination of temperature, salinity, and groundwater flow.
Virginia Tech researchers Traci DuBose and Meryl Mims studied 90 species of frogs and toads using publicly available data from the Global Biodiversity Information Facility. They found that approximately 11% of anuran species are sensitive to climate change but not currently listed as at-risk.
A new study by University of California, Berkeley researchers suggests that iconic desert plants came preadapted to stresses of arid living. The rock daisy study found these pioneers developed adaptations on dry, exposed rock outcrops within older areas, making it easier for them to thrive in expanding deserts.
A new study finds that global atmospheric dust has a slight overall cooling effect on the planet, hiding the full amount of warming caused by greenhouse gases. The UCLA research found that desert dust levels have grown 55% since the mid-1800s, counteracting warming effects.
Researchers mapped strategies to minimize impact of mining on rare plants, finding that protecting 30% of threatened species can ensure long-term survival. The model optimizes energy project placement to balance space use and minimize harm.
Researchers have developed an algorithm to detect pressure activity indicative of dust devils in the Mojave Desert, which can inform their formation and life cycles on Mars. The study aims to improve Martian weather models and enhance robotic missions.
Climate change poses a significant threat to southwestern US reptile and amphibian populations, with limited-dispersal species facing the greatest vulnerability. The study suggests that prioritizing conservation efforts for these species may be crucial to mitigating habitat loss.
The Devils Hole pupfish has the lowest genetic diversity among known vertebrates, with 58% of its genomes identical. This lack of diversity may doom the species to extinction as climate change and human impacts increase.
A study found that living in a food desert increases the risk of heart attack, stroke, and early death for people with PAD. People with PAD living in food deserts were 17% more likely to experience a major cardiac event compared to those with better nutrition access.
A new study reveals the Atacama desert's 'blooming desert' phenomenon is characterized by a high level of variability in flower colors and patterns, which are invisible to human eyes. However, pollinators such as bees and wasps perceive this diversity due to their unique color sensitivity.
Researchers from University of Göttingen found that plant water stress, not termites, causes Namibia's fairy circles. The grasses within the circles died immediately after rainfall due to strong depletion of water, while surrounding grasses thrived.
A team of researchers, working with Traditional Owners in the Tanami desert, discovered 12 boab trees with carvings that tell the stories of Indigenous Australians. The ancient art is equally significant as rock art and is now in danger of being lost due to the tree's soft inner wood.
A new study has identified 195 previously unknown nectar plants for the painted lady butterfly, providing a source of food in Southern California. The research suggests that droughts may impact the butterflies' ability to reproduce, but the discovery of these nectar plants offers hope for their survival.
Researchers at KAUST have identified thermophilic bacteria with potential to degrade oil contamination. The study reveals that certain bacteria can secrete surfactants and absorb emulsified petroleum into their cells for degradation via enzymatic activity.
Researchers found the moths originated from the Baja Peninsula and Arizona, with a new subspecies discovered in western North America. The study recommends using synthetic pheromones to control the invasive pest.
A recent study reveals that anthropogenic air pollution contributes significantly to poor air quality and climate change in the Middle East. The research found that hazardous fine particulate matter from human activities accounts for around 53% of aerosol visible optical depth, posing a significant health risk.
A Hebrew University study reveals that desert isopods, when predators like scorpions are nearby, prefer larger females but settle for smaller ones instead. Males also adjust their behavior, with smaller males opting for second-best females closer to the predator.
A comprehensive study reveals that nitrogen-fixers are most diverse in arid regions of the US, contrary to expectations. Plants have evolved creative ways to acquire nitrogen, and their diversity increases in these environments due to adaptations such as thicker cuticles.
Two new-to-science scorpions, Paruroctonus soda and P. conclusus, are described by Bay Area high school students Harper Forbes and Prakrit Jain in collaboration with the California Academy of Sciences. The species are alkali sink specialists found only in playas from Central and Southern California.
Research suggests that climate change is causing dryland mechanisms to affect temperate regions, leading to changes in vegetation distribution and ecosystem processes. The study predicts that by the end of the century, an estimated 17 million km2 of non-dryland areas will experience average topsoil temperatures above 40°C.
A recent study found that the desert climate has extended 60 miles northward in Central Asia since the 1980s due to rising temperatures and dwindling precipitation. The region's high-altitude areas have seen an increase in precipitation, but this is largely in the form of rain rather than snow.
A global survey of biodiversity experts finds that more species are threatened with extinction than previously thought, with estimates suggesting 30% of species have been lost since 1500. The study identifies climate change, pollution, and land-use changes as key drivers of biodiversity loss.
A study of 155,000 adults found that those with limited income, lower educational attainment, or living in rural areas were more likely to have a poor diet. Researchers from the American Cancer Society analyzed data to identify the association between socioeconomic and geographic factors and diet quality.
Scientists at the University of Texas at Austin have developed a low-cost gel film that can pull water from the air in dry climates, producing up to 6 liters of water per day. The film uses renewable cellulose and konjac gum, making it an affordable solution for communities struggling with water shortages.
Researchers have discovered that sand dunes in deserts can 'breathe' humid air, allowing microbes to persist deep inside hyper-arid sand dunes. This finding has significant applications in fields such as agriculture, food processing, and pharmaceutical research.
Researchers at MIT have developed a new system that can automatically clean solar panels without using water, reducing dust accumulation's impact on efficiency. The system uses electrostatic repulsion to detach dust particles, improving overall power output and potentially saving $200,000 in annual revenue.
Researchers found that desert microbes produce nitrous oxide (N2O) emissions in arid soils after rain, contradicting the long-held assumption that it comes from fertilized agricultural fields. The study reveals a new source of nitrogen pollution in deserts, driven by fossil fuel combustion and industrial processes.
Researchers discovered adaptations allowing desert fish to thrive in harsh conditions by maintaining genetic diversity and adapting genes for aridity. This finding challenges the idea that small populations are evolutionary dead ends.
Researchers discover Amazon basin as main mechanism for precipitation in Atacama Desert, accounting for 40-80% of total precipitation. The findings reveal a new pathway of water supply for the driest region on Earth, aside from summer rain, through moist easterly winds and winter storms.
A new CU Boulder study reveals that iodine from desert dust can decrease ozone air pollution but prolong greenhouse gas lifetimes. The finding has significant implications for air quality and climate, forcing researchers to re-evaluate how particles from land impact the atmosphere's chemistry.
In a new study, desert shrubs in the Southwest have increased their water use efficiency at unprecedented rates to survive a decades-long megadrought. The study found that despite this heroic increase, shrubs may not be adapting quickly enough to long-term drying trends in the West.
Researchers found that bacteria living inside plant roots trigger sulfur metabolism to produce antioxidants that detoxify the plant from salt-induced damage. This discovery could lead to breakthrough technologies for saline agriculture and improve food production in arid lands.
Researchers develop efficient fog filter design using structured nylon nets to capture fog droplets, offering alternative source of fresh water in drought-stricken regions. The design is inspired by the unique abilities of Namib desert beetles and textile-based face masks.
An international team of researchers identified genes associated with plant survival in the Atacama Desert, a harsh environment in Chile. These findings may help scientists breed crops that can thrive in increasingly dry climates and mitigate the effects of climate change.
Airborne pollen concentrations in Betula microphylla-dominated wetland of Ebinur Lake, Xinjiang, are influenced by meteorological factors such as temperature, precipitation, wind speed, and direction. The study found that airborne pollen composition corresponds to local vegetation and reflects long-distance transported pollen taxa.
Researchers developed a new model to predict how sand dunes move through landscapes, revealing conditions that determine whether they pass or stop at hurdles. The model shows large obstacles are most effective at halting dune migration, especially ridge-shaped ones like walls.
Large-scale solar farms have a cooling effect on surrounding land, reducing temperature by up to 2.3°C at 100m away from the park boundaries. The study highlights the need for consideration in solar park design and location to minimize negative impacts.
A groundwater market in California's Mojave desert stabilizes resources and increases property values by 200%, generating a net benefit of at least $400 million. The cap-and-trade system enables water to be used more productively while compensating original owners.
A new study from the Kalahari Desert finds that teamwork allows birds to cope with brutally unpredictable environments. The research team at the University of Exeter shows that families with more helpers successfully raise more chicks in dry conditions, reducing weather-driven variation in breeding success.
The project aims to digitize three million plant specimens from US herbaria and combine with data from Asia and Europe, accelerating research on endangered species and plant biodiversity. The Harvard University Herbarium will lead the effort, connecting institutions in the US, Europe, and Asia.
A University of Arizona-led study found that drought and seasonal fluctuations in rainfall are larger drivers of evolutionary diversity than warm temperatures. The research team created maps of evolutionary diversity across North, Central and South America, revealing that deserts have more plant species compared to forests due to drought.
Research in Saudi Arabia reveals multiple pulses of increased rainfall transformed the arid region into a hospitable route for human population movements. The discovery of thousands of stone tools shows changing human culture over time, documenting transition from Lower Palaeolithic Acheulean to Middle Palaeolithic technologies.
Researchers sequenced DNA from plant specimens collected nearly 50 years ago to analyze genetic diversity and its response to climate change. The study found that several species restricted to the Guadalupe Mountains had surprisingly high amounts of genetic diversity, which could help them adapt to changing conditions.
The study suggests that green habitat corridors connected eastern Africa to the Levant across the present-day Judean Desert, facilitating the dispersal of crested rats and humans. This correlation dates back to a brief period during the Last Interglacial.
Researchers have solved a long-standing debate about the origin of rock varnish in deserts by attributing its formation to microbial communities that use manganese to combat the desert sun. The study used advanced techniques such as X-ray spectroscopy and DNA sequencing to understand how these ecosystems interact with rock varnish.
Scientists investigate volcanic deposits and flows in the Mojave and Sonoran deserts to better understand pyroclastic surge movement across complex terrain. The research aims to improve knowledge of volcanic hazards and inform hazard assessments.
Researchers successfully germinated and grew Podaxis specimens collected in the 1770s, showing they can remain viable for centuries. The study found that these fungi can adapt to extreme environments and survive under relaxed selection pressure.
Researchers have developed a method for breaking camouflage that allows civilians and military personnel to identify hidden targets with high accuracy, even in complex scenes. The technique has been shown to be effective even when participants are given only a short viewing time.
Using satellite data, researchers identified suitable foraging habitats and found areas of low resource availability that were rarely used by Aboriginal peoples. The study provides new information on the complex socioeconomic strategies employed by the indigenous population to adapt to environmental challenges.
A new study has identified opioid treatment deserts in Ohio, where distances to recovery services exceed a mile or 30 minutes by public transit. These areas pose significant barriers to care, with shorter travel times found for white adults compared to Black adults.
Great reed warblers climb to record-breaking daytime cruising altitudes of up to 6,200 meters when crossing the Mediterranean Sea and Sahara Desert. This previously unknown behavior may help explain the evolution of nocturnal migration in migratory birds.
A new study found that the tiny desert-living dinosaur Shuvuuia had extraordinary vision and owl-like hearing for nocturnal life in the Mongolian desert. The team measured the size of the eyes and inner ears of over 100 bird and dinosaur species, revealing that Shuvuuia's lagena was almost identical in relative size to today's barn owl.
A recent study found that more than 470 bee species inhabit a 16 km2 area of protected Chihuahuan Desert, representing 14% of the known United States bee fauna. This biodiversity hotspot provides valuable insights into native bee diversity and highlights the need for baseline information to assess human impact on bee faunas.
A USC study reveals that 1 in 3 neighborhoods in the largest US cities have limited pharmacy access, disproportionately affecting Black and Latino residents. This 'pharmacy desert' phenomenon may contribute to persistent racial and ethnic health disparities.
A new study by the University of California - Davis suggests that rapid solar development may harm rare desert plant species more than common ones. The research found that weather and landscape features influenced how plants respond to solar panels, with rare species facing potential threats from panel shade.
Horses and donkeys dig wells in dryland ecosystems, increasing water availability for a variety of plant and animal species. This overlooked form of ecosystem engineering shows that equids can buffer water availability in dryland environments, providing a service crucial to desert resilience.
A new study from the Journal of Near Eastern Studies presents evidence of Roman-era emerald mining in Wadi Sikait, Egyptian Eastern Desert. The excavation revealed religious artifacts and structures, highlighting the importance of cult spaces in mining settlements.
A recent study found that North American deserts are home to a high array of butterfly species due to the desert's changing conditions and mobile nature. This diversity is attributed to the butterflies' generalist behavior and lack of host plant specificity, making them less likely to cluster together.