rocky mountains – Shamskm: A site to exchange knowledge and solutions

Kosmische Kollision in den Rocky Mountains

By Guest PostSeptember 29, 2018Sciencekosmische kollision, kraterforschung, rocky mountains, streufeld von kratern, thomas kenkmann

Geologen entdecken das größte und älteste Streufeld von Kratern auf der Erde, das vor 280 Millionen Jahren entstand

Wenn kleine Asteroiden mit einem Durchmesser von wenigen Metern die Erdatmosphäre durchdringen, werden sie durch Reibungskräfte zerrissen und abgebremst. Wenn es sich um feste Eisen-Meteoroide handelt, kann jedes dieser Gebilde einen kleinen Krater in die Erdoberfläche reißen. In enger Nachbarschaft entsteht so ein Streufeld von Kratern – jeder von ihnen kann eine Größe von bis zu 100 Metern besitzen. (more…)

Small Alpine Insects are Big Messengers of Climate Change

By Guest PostNovember 26, 2016Environmentalpine insects, climate change, clint muhlfeld, glacier national park, global warming, joe giersch, meltwater stonefly, messenger, rocky mountains

West Glacier, Mont. – Two rare alpine insects – native to the northern Rocky Mountains and dependent on cold waters of glacier and snowmelt-fed alpine streams – are imperiled due to climate warming induced glacier and snow loss according to a study by the U.S. Geological Survey and its partners. (more…)

Alpine Bumblebees’ Rapid Adaptation to Climate Change Offers Glimmer of Hope to Declining Bee Population

By Guest PostDecember 30, 2015Environment, Naturealpine bumblebees, bee population, candace galen, climate change, ricardo holdo, rocky mountains

COLUMBIA, Mo. – Rising temperatures in alpine habitats worldwide have resulted in declines in flowering among indigenous plants and contributed to dramatic declines in populations of several bumblebee species prevalent in those regions. Now, researchers at the University of Missouri in a study published in Science, have found that two alpine bumblebee species have responded to this decline in flowering due to warming temperatures by evolving shorter tongues. The results suggest that some bumblebee species may be able to adapt to environmental challenges caused by climate change. (more…)

A better view of the Rockies, thanks to a geological feature in Peru

By Guest PostSeptember 5, 2015Scienceflat slab subduction, geological process, how mountains develop, peru lithosphere, rocky mountains

Scientists are getting an unprecedented look at a geological process in South America that mirrors the formation of America’s Rocky Mountains. (more…)

Rocky Mountains bewahrten Nordamerikas Tierwelt vor dem Aussterben

By Guest PostAugust 19, 2015Natureaussterben, daya bay experiment, eozaen, gen li, geologe, grande coupure, klimaveraenderung, longmen mountains, nienhagen sunflower, rocky mountains, topographic stress modeling

Wissenschaftler des Senckenberg Biodiversität und Klima Forschungszentrums haben die „Grande Coupure“ untersucht – während dieses Aussterbeereignis vor etwa 33 Millionen Jahren verschwanden rund 60 Prozent aller europäischen Säugetiere in Folge veränderter Klimabedingungen. In ihrer kürzlich im Fachjournal „Proceedings of the Royal Society B“ veröffentlichten Studie zeigt das deutsch-amerikanische Forscherteam, dass der Aufstieg der Rocky Mountains weite Teile der Säugetierwelt Nordamerikas auf die veränderten Umweltbedingungen vorbereitete und so vor dem Verschwinden bewahrte. (more…)

Statistical Analysis Projects Future Temperatures in North America

By Guest PostMay 20, 2012Environmentbayesian statistics, change, climate models, climate projection, emily kang, emissions scenario, great lakes, hudson bay, midwest, narccap, noel cressie, North America, ohio state university, pam frost gorder, projection, rocky mountains, seasonal temperature, spatial statistics, statistical analysis, temperature

COLUMBUS, Ohio – For the first time, researchers have been able to combine different climate models using spatial statistics – to project future seasonal temperature changes in regions across North America.

They performed advanced statistical analysis on two different North American regional climate models and were able to estimate projections of temperature changes for the years 2041 to 2070, as well as the certainty of those projections.

The analysis, developed by statisticians at Ohio State University, examines groups of regional climate models, finds the commonalities between them, and determines how much weight each individual climate projection should get in a consensus climate estimate. (more…)

Study Indicates Hail May Disappear From Colorado’s Front Range by 2070

By Guest PostJanuary 12, 2012Environmentclimate change, climate models, climate warming, colorado, colorado springs, continental divide, decision-makers, denver, downscaled, downscaling technique, eastern flank, flash floods, foothill communities, fort collins, global climate models, greenhouse gases, hail, hail damage, hailstones, james scott, joseph barsugli, kelly mahoney, michael alexander, nature climate change, precipitation, rain, regional scale models, regional topography, risk of flooding, rocky mountains, runoff, thunderstorms, weather scale

Summertime hail could all but disappear from the eastern flank of Colorado’s Rocky Mountains by 2070, says a new study by the National Oceanic and Atmospheric Administration, the University of Colorado Boulder’s Cooperative Institute for Research in Environmental Sciences and the National Center for Atmospheric Research.

Less hail damage could be good news for gardeners and farmers, said lead author Kelly Mahoney, a research scientist at CIRES, but a shift from hail to rain can also mean more runoff, which could raise the risk of flash floods. “In this region of elevated terrain, hail may lessen the risk of flooding because it takes awhile to melt,” Mahoney said. “Decision makers may not want to count on that in the future.” (more…)

Where Have All the Flowers Gone?

By Guest PostJune 18, 2011Nature, Scienceabraham miller rushing, animal pollinated plants, bees, bumblebees, climate change, colorado mountain meadows, david inouye, davis, elk mountains of colorado, flower species, george aldridge, high mountain wildflower season, hummingbirds, jessica forrest, national science foundation, nectar, petals, pollen, pollinators, rocky mountain biological laboratory, rocky mountains, sub alpine meadows, summer wildflower, tucson, university of california, university of maryland, usa national phenology network, wildflowers, william barr

*High-mountain wildflower season reduced, affecting pollinators like bees, hummingbirds*

It’s summer wildflower season in the Rocky Mountains, a time when high-peaks meadows are dotted with riotous color.

But for how long?

Once, wildflower season in montane meadow ecosystems extended throughout the summer months. But now scientists have found a fall-off in wildflowers at mid-season. (more…)

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