Articles tagged with Mountains
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A new study in Systematic Entomology reveals that evasive butterfly mimicry in the genus Adelpha may be a rare and overlooked type of mimicry. The researchers found that Adelpha butterflies use speed and unpredictability as a defense mechanism, making them difficult to catch for birds and other predators.
Researchers used big-data approach to discover climate change and mantle processes had limited influence on Central Asian landscape. Instead, dynamics of distant Tethys Ocean directly correlate with short-lived mountain building in Central Asia.
A new study found that 63% of bird species in four large European mountain ranges have shifted uphill in the past two decades, with an average movement of half a metre per year. This trend is driven by broader climatic trends and is observed in regions such as Scandinavia and the Alps.
A new study by Montana State University scientists explores elevation-dependent changes in climate, including variations in precipitation, surface albedo, and air temperature trends across mountain ranges globally. The findings have direct implications for water availability and use in regions like Montana.
A major global review reveals alarming trends in mountain regions, including faster warming, more unpredictable rainfall, and significant changes from snow to rain. The findings highlight the devastating consequences for people dependent on mountain snow and glaciers for water, particularly in China and India.
Researchers studying Tajikistan's Kyzylsu Glacier found that the glacier likely reached its tipping point in 2018, with decreasing snowfall causing it to melt. The study uses computational models driven by new local observations and demonstrates the importance of densifying observational data in understanding anomalous glacier behavior.
Researchers found that the sediment surge after the Wenchuan Earthquake led to a significant increase in bedload flux, accounting for 65% of the overall sediment flowing through the river. The elevated flux persisted for at least ten years, with no evidence of declining back to background levels.
A global analysis using machine learning predicts glacial erosion rates for 180,000 glaciers worldwide, with most experiencing erosion between 0.02-2.68 millimeters per year. The study identifies complex factors influencing erosion, including temperature, water under the glacier and rock type.
In a groundbreaking discovery, researchers have identified three new species of frogs in the Cordillera de Huancabamba highlands. The study reveals that these secretive creatures possess unique characteristics, such as prominent tubercles on their bodies and adaptations to the harsh environment.
A new study compares tropical mountain ice cores to climate model simulations, revealing discrepancies in Earth's average temperature trends. Researchers found that ice core data and computer models match for polar regions like Greenland and Antarctica, but not for tropical mountains.
Researchers used satellite data to analyze the impact of dust on snowmelt in the Colorado River Basin. The study found that dust-driven melting tends to peak earliest and be most intense in central-southern Rocky Mountains, accelerating spring melt rates by up to 1 mm water-equivalent per hour.
Researchers at West Virginia University found that babies born to teen mothers weigh less and are smaller for their gestational age. The study highlights the role of social, geographical, and educational factors in teen pregnancy prevention.
Farmers in African mountains reported increased temperatures, reduced fog, and changes in rainfall patterns, leading to lower crop yields, livestock production, and human health concerns.
A collaborative effort investigates the Sikkim Himalaya flood, exploring its drivers, causes, and downstream impacts. The research aims to inform disaster risk reduction and build resilience in vulnerable regions.
Scientists studied ancient whitebark pine forest on Beartooth Plateau, finding the tree line was 600 feet higher during a moderate climate period. The discovery sheds light on how dynamic ecosystems respond to temperature warming and offers insights into future changes for alpine environments.
Researchers at University of Maryland have discovered that the South Pole-Aitken basin, the moon's oldest and largest visible crater, is more circular than previously believed. The team used high-resolution data to analyze mountain formations around the basin, revealing a rounder shape indicating a more vertical impact angle.
Researchers at Curtin University found that the Ninetyeast Ridge, the Earth's longest straight underwater mountain chain, formed as a massive volcanic chain between 83 and 43 million years ago. High-precision dating revealed that the hotspot responsible for the ridge moved by several hundred kilometres within the mantle over time.
A new study from the University of Colorado at Boulder has uncovered strong evidence for a global 'Snowball Earth' event, where massive glaciers covered the entire planet down to the equator hundreds of millions of years ago. The findings provide critical insights into the planet's geologic history and the emergence of life on Earth.
Researchers discovered that highland deer mice have evolved distinct ways to acclimate to low oxygen conditions, surpassing their lowland counterparts. The study also showed that the highland mice possess a genetic advantage that helps suppress pulmonary hypertension.
An international team of researchers has discovered seven new species of tree frogs in Madagascar, characterized by their high-pitched whistling calls. The unique vocalizations are believed to serve as self-promotional advertisement calls to convey information about the male frog's suitability as a mate.
The SUPERSLUG initiative aims to forecast the impact of sediment slugs on river catchments and communities. The project will use a range of sensors and numerical models to provide comprehensive predictions of where and how long-term effects might be felt, up to decades or centuries after an event.
A new study finds that slow-moving landslides are frequently excluded from estimates of landslide risk, threatening people living on unstable slopes. Urban growth, climate change, and flood risk drive population shifts to safer areas, yet poorer populations may have limited options.
Researchers from University of Utah introduced Simulating Travel Rates in Diverse Environments (STRIDE) model to predict walking travel times with unprecedented accuracy. The model considers slope steepness, vegetation density, and ground surface roughness for efficient routes.
A new study reveals that the Sierra Nevadas are a significant source of groundwater for California's Central Valley aquifer, with some areas relying almost entirely on it. The research found that the groundwater is mixed in age, with some water being as young as 4 years old and others dating back over 40,000 years.
Researchers have found a vast number and variety of day-flying insects migrating through the Pass of Bujaruelo in the Pyrenees, with flies making up 90% of the total. The insects begin their journeys further north in Europe and continue south into Spain.
A new study by University of Colorado Boulder primatologist Michelle Sauther found that smaller animals like the lesser galago face extra challenges adapting to climate change. The research highlights the importance of protecting these small and nocturnal species, which are often overlooked in conservation efforts.
A new study establishes official climate divisions in Hawaii, improving climate research and forecasting. Chronic pain sufferers who spend time outdoors experience stronger weather-based effects, while lightning-initiated wildfires are responsible for more than half the acres burned in the contiguous United States.
A new study finds that warming climate is causing a doubling of copper, zinc, and sulfate concentrations in metal sulfide-rich watersheds in Colorado's mountains. The greatest increases are seen at high altitudes, where natural chemical weathering of bedrock is the source of rising acidity and metals.
Researchers at the University of Texas at Austin propose a new step in the tectonic process that raises seafloors into mountains, involving oceanic crust influencing magma chamber formation. This discovery has implications for understanding back arc basins and their role in regulating the planet's climate.
A PSU study analyzed the meteorology behind the September 2020 Western United States extreme weather event, which caused record-breaking cold temperatures and early-season snowfall in the Rocky Mountains. The research found that a highly amplified wave pattern persisted for several days, fueled by dry air from western Canada.
A new study reveals that even small incremental increases in tree cover on agricultural land in mountain regions can provide significant climate change mitigation benefits within a decade. Agroforestry practices can help conserve irrecoverable carbon, improve biodiversity, and enhance ecosystem services in mountain systems.
A new study reveals that mountains amplify and obstruct winter precipitation during El Niño events, with increased rainfall on the western side of mountains. This analysis enables more accurate water predictions for the Colorado River in western North America, helping cities, farmers, and water managers prepare for droughts.
Researchers discovered that rising temperatures trigger katabatic winds in Himalayan glaciers, cooling the air and preserving surrounding ecosystems. The team used climate models to demonstrate this phenomenon across the Himalayan range, suggesting that some glaciers may have a chance to 'save' themselves by reacting to global warming.
A new method calculates rockfall risk over large areas of very high mountains, considering both earthquake-induced and erosion-driven risks. The study found that nearly 60% of total rockfall hazard in the Andean zone is attributable to seismic activity.
Researchers analyzed whiteschist from the Dora Maira Massif to study rapid upward movements, revealing a sharp decrease in pressure or decompression. This suggests that UHP rocks may not have reached a depth of 120 kilometers before returning to the surface.
Researchers found 13 mummified leaf-eared mouse cadavers atop 4-mile-high volcanoes, with DNA analysis revealing a distinct population from lower-altitude mice. The discovery suggests the rodents ascended without human assistance and have adapted to extreme conditions.
A new computer model reconstructs the evolution of Alpine ice cover with unprecedented precision, allowing scientists to understand past climate interaction with glaciers. The simulation provides a direct visualization of phenomena, making them accessible to a wide audience.
Researchers have identified that ancient quakes occurred in shallow faults on the Puget Lowlands in western Washington, which could lead to another devastating event. The study used tree rings to pinpoint the dates of these quakes and found a link between them, suggesting regional hazard models may need to be updated.
Scientists have identified two new mole species in eastern Turkey, belonging to the Talpa genus, which has been living undiscovered for up to 3 million years. The study, using cutting-edge DNA technology, confirms their biological distinctness from other moles in the group.
Researchers highlight the importance of tropical montane ecosystems and their limited data availability. The study proposes refining models to include socio-ecological diversity, emphasizing the need for a transdisciplinary network to quantify ecosystem services.
A new study found that the 2022 snow season had the highest snowpack dust concentrations of any year since observations began in 2009, accelerating snowmelt by 17 days. The dry lakebed of the Great Salt Lake contributed the highest dust emissions per surface area, threatening Utah's water supply.
Researchers at Colorado State University have made a groundbreaking discovery in understanding how mountains form, revealing that deep Earth processes are the primary drivers of mountain building in subduction zones. By combining novel data sets and techniques with traditional geomorphology measurements, the team generated a long-term ...
A study suggests that river erosion can drive biodiversity in geologically quiet environments, such as the Appalachian Mountains. The research found that changing landscapes pushed a species of fish into different tributaries, leading to distinct genetic lineages.
A study found that the coqui frog's calls have changed over a 23-year period due to rising temperatures, with higher-pitched calls at higher elevations. This shift may indicate a mini-migration of frogs up the mountain as temperatures increase, posing a threat to their survival.
A team of researchers from UNLV has named a previously unexplored 500 million-year-old Grand Canyon formation, the Frenchman Mountain Dolostone. The new formation was identified through scientific detective work and is now understood to have been deposited over an interval of 7.3 million years during the Cambrian Period.
A new study has found that increasing woodland cover in UK uplands will not deter tourists from visiting. The research, conducted by Aarhus University, involved over 500 tourists and showed that most would still visit even with 75% or 100% forest cover. However, the majority preferred a view from the mountain top.
Researchers found Mountain Quail were more common than thought, with positive associations to high-severity fires. They were most positively associated with areas that had burned in the past 6-10 years, but also showed positive relationships ranging from 1 to 35 years after fires.
Researchers report that more than 85% of world's bird, mammal, and amphibian species live in mountains, but these forests are vanishing at a faster pace. Globally, we've lost 78.1 million hectares of mountain forest since 2000, mainly in tropical biodiversity hotspots.
Scientists used rare isotopes to study erosion rates in the Andes Mountains, finding that sediments eroded from high mountain watersheds were shielded from cosmic rays for at least 7-15 thousand years. This helps predict where future landslides might occur and understand landslide risks.
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...
A global assessment identifies areas most vulnerable to Glacial Lake Outburst Floods, highlighting the need for targeted risk management actions. The study reveals 9.3 million people in High Mountain Asia are at highest risk, with India and Pakistan accounting for nearly half of the global total.
Researchers have documented cases of Japanese macaques hunting and eating fish in the Kamikochi region of Japan, suggesting an evolutionary adaptation to harsh winter conditions. The behavior appears to be an extension of existing feeding habits on vegetation and aquatic plants, with potential implications for future generations.
The Aztecs tracked seasonal variations in weather by watching the sunrise against the peaks of the Sierra Nevada mountains. Their agricultural system accurately fed a population of up to 3 million people before the Spanish arrival.
Researchers have detected five emerging tick-borne pathogens in Central Canada, including those causing Lyme disease and babesiosis. Climate change and habitat fragmentation contribute to the spread of these pathogens, highlighting the need for increased awareness and protection measures.
A new study reveals huge gaps in data on how communities use mountain water sources, complicating efforts to model future scenarios. The researchers emphasize the need for improved data and process understanding to guide effective climate change adaptation.
A new study warns that climate change will negatively impact mountain landscapes and human activity, increasing risks of natural hazards like avalanches and river floods. Mountain communities are also affected, with traditional practices like transhumance and agriculture dying out due to changing weather patterns and water scarcity.
Two billion people globally rely on mountain water for drinking and irrigation, which is under threat due to global heating. Researchers propose integrated water strategies that include scientists working directly with communities to drive climate adaptation and boost water security.
Research finds LA mountain lions are avoiding burned areas but crossing roads and traveling longer distances to find resources. The population is increasingly at risk due to habitat loss and human-wildlife conflict.
A new study by Eurac Research confirms negative global trends in mountain areas, with an average decline of 15 days of snow on the ground over 38 years. Snow cover has decreased by 4% globally, with peaks of 20 or more fewer days in Canada's western provinces.
Researchers conducted the Earth Summit Mission 2022 to investigate the interaction mechanisms between westerlies and monsoonal flow near Mt. Qomolangma. They discovered strong glacial wind and vertical momentum exchange between large-scale westerlies and boundary layer in the region.