Articles tagged with Mountains
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A new study finds that earlier snowmelt periods associated with a warming climate may hinder subalpine forest regulation of atmospheric carbon dioxide. The findings predict a 45% reduction in snowmelt period forest carbon uptake by mid-century.
Researchers propose a new method to model how fast and where organisms will need to move in response to climate change. They find that even short movements in mountainous areas expose organisms to large climate differences, preventing them from maintaining suitable climates.
A study found that mountain lion females hunt on average less than a mile from human development, while males prey on deer in riparian woodlands. The choice of hunting grounds may reflect areas with abundant prey, such as mule deer attracted to water sources and lush vegetation.
Researchers found a two-million-year delay between tectonic uplift and maximum erosion rates in the Argentine Precordillera mountains. This time-lag is attributed to the slow propagation of erosion waves through the fluvial network under semi-arid conditions.
A 15-year study reveals that Luzon Island, in the Philippines, is home to 56 non-flying mammal species, 52 of which are unique to the island. The research team discovered 28 new species, including four tree-mice with extremely long whiskers and five shrew-like mice that feed on earthworms.
A recent study published in Science reveals that populations in the ancient Fertile Crescent are the ancestors of modern-day South Asians, but not of Europeans. The earliest farmers from the Zagros mountains in Iran showed a genetically distinct group that only very distantly related to the first farmers of western Anatolia and Europe.
Typhoon Nepartak's cloud top temperatures were as cold as minus 63 degrees Fahrenheit, indicating strong storms. Rainfall totals compiled by Taiwan's Central Weather Bureau confirmed high amounts, with some areas receiving over 500 mm of rain.
Scientists discover that chewed plants by mountain gorillas can be used to test for viruses, providing a simple way to monitor the health of endangered apes. The new non-invasive method is effective for detecting both RNA and DNA viruses and has implications for conservation management.
A UCI study reveals that climate change is altering the growth patterns of male and female Valeriana edulis over elevation in the Colorado Rockies. The shift in sex ratios allows female plants to successfully produce more seeds, while males become more common at higher elevations.
Researchers used a new mapping technique called Fodar to settle the debate on the highest peak in the US Arctic. The study found Mt Isto to be the tallest at 2735m, surpassing previously disputed peaks Mt Chamberlin and Mt Hubley.
The Bavarian Alps have seen a 14% decline in topsoil organic matter over the past three decades, primarily caused by climate warming. Implementing humus-promoting forest management can help mitigate floods and preserve soil fertility, water balance, and nutrient supply.
A study by Colorado State University researchers reveals that tropical mayflies have a higher number of distinct species than their temperate-zone counterparts. The distinctions between these species consist of subtle, genetic differences that aren't readily visible to the naked eye.
Scientists have dated the opening of an ice-free corridor in the Rocky Mountains, which allowed for later human and animal migrations between North America's far north and rest. The research used bison fossils to track the movement of animals into the corridor, showing it was open by around 13,000 years ago.
A study by researchers at Duke University found that coal from the Appalachian Mountains contains the highest amounts of rare earth elements. The team identified ash from this region as a potential source for extracting these critical materials, which are essential for clean energy and emerging technologies.
A computer model simulates the formation of Io's mountains through the compression of rocks due to volcanic activity. The study suggests that this mechanism could have operated on early Earth, explaining why mountains like those on Io might have emerged first as land.
Dr. Michael Skvarla's Ph.D. research at the University of Arkansas has discovered 30 previously unknown sawfly species in the state. The study highlights the vast natural history still to be explored about insects, with many species having large range extensions across hundreds of miles.
A study on mountain gorillas reveals that their dietary habits contribute to dental wear, which adapts to the available food in their habitat. The analysis of tooth morphology provides valuable information for identifying and age-estimating gorillas, highlighting the importance of conserving their habitat.
In a groundbreaking discovery, Czech researchers found the first case of ovoviviparity in long-horned beetles from Borneo, resulting in three new genera and four species descriptions. The study reveals high morphological diversity in this lineage, challenging current knowledge on beetle reproduction.
Scientists analyze sedimentary archives in Alberta Foreland Basin, revealing cyclic changes in sediment source areas consistent with magmatic flare-ups. In another study, researchers uncover pre-Cenozoic geologic history of the central and northern Tibetan Plateau, tying Wilson cycles to constructing the Tethyan orogenic system.
A lesser-known South African mountain endemic, Macowania revoluta, has been rediscovered and found to be an exceptionally important keystone species. Its ecological role in wetland functioning and soil protection is crucial for the ecosystem's balance.
A rare South African plant, Mrs Barber's Beauty, was rediscovered in the Great Winterberg mountains after 147 years. The plant is now recognized as Critically Endangered due to limited ecological conditions.
Research by University of Arizona geoscientists finds post-wildfire erosion dominates landscape transformation in the US Intermountain West. Erosion rates increased 1,000 to 10,000 times in burned watersheds compared to unburned areas after severe wildfires.
A newly discovered insect, Asiagomphus reinhardti, has been found in remote mountainous regions of Cambodia and Laos. The dragonfly, named after TU Dresden researcher Klaus Reinhardt, is characterized by a black body with yellow spots and green eyes.
A new study simulates climate change effects on Rocky Mountain stream systems, finding that warmer temperatures have a greater impact on streamflow than changes in precipitation type. This can lead to reduced streamflow and altered groundwater recharge patterns.
Researchers propose an algorithm to retrieve four-dimensional surface deformation field using space-borne SAR data, crucial for interpreting complex geological phenomena. The method demonstrates its validity in areas where large and/or rapid surface deformation occurs, such as the Afar depression system.
A new study finds that cold-water species are more resilient to climate change than previously thought, with many populations expected to persist this century. Mountain landscapes play a crucial role in preserving biodiversity, giving conservationists time to complete extensive surveys and develop effective conservation strategies.
The Deutsche Forschungsgemeinschaft (DFG) is establishing four new Research Units, focusing on climate-related extinction events, individual risk perception, human impact on high-altitude ecosystems, and resilience in pre-modern societies. The units will receive approximately €7 million in funding for the first period.
Researchers found two new species of dung beetles in montane forests and cattle grazing sites across the Mexican mountains. The discovery highlights the importance of preserving disturbed ecosystems for species conservation.
A recent study has identified nearly 2,000 species of looper moths in the Andes mountains. The researchers used DNA barcodes to categorize and identify the species, revealing a higher diversity than previously estimated.
Researchers have uncovered evidence of 12 massive explosive eruptions in the Cassia Hills of southern Idaho, which left behind glassy deposits and a deep volcanic basin. These eruptions were hotter and more frequent than those at Yellowstone, and provide insights into ancient volcanic activity west of the famous park.
A University of California, Irvine study found that global warming affects the soil fungi that support plant life in tropical mountain cloud forests. The impact on these ecosystems could be significant, with changes to fungal community composition and increased carbon dioxide emissions.
A team of scientists collected over 70 fertile/flowering orchid specimens from the field during the 6-week Lengguru 2014 expedition. Four new orchid species were identified among them, all collected in high-altitude forests above 1000 meters above sea level.
Climate models predict wet regions will become wetter and dry regions drier; western US aquifers expected to see slight-to-significant decreases in recharge as climate warms. The team's research integrates scientists' knowledge with scientific models to predict groundwater changes.
Pollinator preferences favor orchids with stronger scents in the Swiss lowlands, but not in mountain regions. Key differences were found in floral scent molecules and pollinator communities between the two areas.
A new caddisfly species, Drusus sharrensis, has been discovered in Kosovo's Sharr National Park. The discovery highlights the country's unique biodiversity hotspot and raises concerns about the impact of human activities on aquatic ecosystems.
Researchers evaluated the performance of Riegl Z620i and LPM-800HA terrestrial laser scanners on characterizing natural surfaces. They established a procedure to test componential uncertainty budgets and demonstrated the relationship between reference network uncertainty and imaged surface repeatability.
A new study highlights how topography influences biodiversity in mountains. Mid-altitudes host the most species due to the size and connectivity of similar habitats. Biodiversity peaks at these elevations, not at high altitudes or lower levels, according to researchers from EPFL.
A new iguana species, L. uniformis, has been discovered in the Andean highlands of Central Chile with consistently colored bodies across males and females. The species' unique coloration is consistent even among individuals from different sexes.
A CU-Boulder study reveals an ongoing loss of ice on Niwot Ridge and the Green Lakes Valley in the Rocky Mountains, likely to progress as climate warms. The decline is associated with rising temperatures each summer and autumn, causing glaciers, rock glaciers, and permafrost to thin.
Two new species of frogs, Rombophryne ornata and Rombophryne tany, are discovered in the forest floor of Madagascar's remote Tsaratanana Massif. The scientists found unique features such as spines over their eye sockets and distinctive colors like reddish and brownish hues.
The 2011 flood caused by Tropical Storm Lee had a significant impact on the geomorphology of several large watersheds in north-central Pennsylvania. Channel widening and bank erosion were common, and huge volumes of gravel were transported during the flood. The study suggests that part of the reason for these changes was related to the...
The discovery of ancient tortoise and turtle fossils in the Andes Mountains suggests that the region was less than a kilometer above sea level 13 million years ago. The findings support alternative estimates to a recent study and provide insights into climate change caused by rising mountains.
New mapping and dating reveal timing of past earthquakes and tectonic deformation distribution across the western U.S. Death Valley's faulted alluvial fans help determine seismic hazard mitigation and understand great landscapes' evolution over recent geologic time.
Scientists have used subterranean rock samples to help fill a gap in the history of Earth's magnetic field, shedding light on North America's position 400 million years ago. The study provides new insights into Paleomagnetism and its relevance to understanding the continent's geological past.
A new study examines the spatial distribution of conservation lands in the Appalachian Mountains. The research found that social factors play a more significant role in the distribution of conservation easements than environmental factors.
San Francisco State University researchers developed a new method to analyze river rocks, revealing the impact of climate on sediment size. The study found that larger sediment sizes are produced on steeper, colder mountains, controlling canyon formation.
Researchers found that cold, steep slopes produce coarser sediment than gentle slopes, suggesting variations in climate, topography, and weathering rates shape mountain landscapes. This discovery quantifies the relationship between sediment size and erosion rates, providing new insights into the interplay of climate and tectonics.
Scientists estimate volume of open pore space in subsurface using geophysical surveys and computer models, revealing new theoretical framework for understanding watershed porosity. The study predicts distribution of pore space based on stress in the earth's crust, with implications for streamflow, aquifer systems, and landscape evolution.
A new study from the US Centers for Disease Control and Prevention finds that the expanding range of the Lone star tick is causing reports of Rocky Mountain spotted fever infections to rise, but fatalities have not. The mild disease spread by the aggressive tick is being mistaken for the more serious disease due to similarities in bloo...
A Baylor University study projects significant impacts of climate change on the Himalayan mountain basins, including reduced water availability and exacerbated food insecurity. The research highlights the importance of land use practices in conserving water resources, particularly in regions like Nepal.
Ramanujan's original taxi-cab number, 1729, contains hidden meanings that relate to elliptic curves and K3 surfaces. Mathematicians have found a 'magic key' in his formula that can reveal secrets of these objects.
A new study presents a method using GIS and National Geothermal Data System data to evaluate regions for geothermal energy exploration. The Denver-Julesberg Basin is identified as the highest capacity for large-scale, economically feasible geothermal power production.
A new study reveals that Southern California wildfires have two distinct personalities, with Santa Ana winds-driven fires being more damaging due to faster spread, urban burns, and higher economic losses. Climate change is expected to fan flames for the region, increasing fire risk from hot summers.
Researchers examine differences between Southern California's summer and Santa Ana fires, which exhibit split personalities due to climate-driven conditions. Climate change increases the risk of both fire types, with non-Santa-Ana summer fires becoming more prevalent.
Researchers used seismometers to study Peruvian flat slab subduction, revealing its structure and evolution over time. The team found the angle of subduction is shallowest near the Nazca Ridge, where the plate sinks 90 km down before flattening out.
Research on Mount Kinabalu in Malaysian Borneo found that most endemic species are younger than the mountain itself and have evolved to adapt to cooler conditions. The study revealed two groups of unique species, with some originating from far-away areas and others evolving from local species.
A new study has found that inbreeding is not the primary cause of Colorado's declining bighorn sheep population. Genetic analysis suggests that high ram migration and gene flow between herds have maintained healthy levels of genetic variation, rescuing the population from a genetic bottleneck. However, other factors such as nutritional...
A new database of submarine landslides has been developed to better understand these events and their effects. The database, which includes over 332 points of study, aims to improve the development of geo-models for forecasting future submarine slides.
Researchers found that people with a small opening in the heart (PFO) were more susceptible to acute mountain sickness and had impaired lung function at high altitudes. The study suggests PFOs may impair performance at high altitude due to inefficient blood oxygenation.
Two new studies shed light on the Himalayan tectonic system, confirming a strike-slip dominated fault in western Nepal and highlighting topographic and tectonic discontinuities. The findings also support the initiation of mountain belt-parallel extension in the mid-Miocene epoch.