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‘Mountain Pine Beetle Activity May Impact Snow Accumulation And Melt’

By Guest PostJune 10, 2011Environmentalbedo, atmosphere, british columbia, bryant kealey, colorado, colorado river, ecohydrology, eric small, evan pugh, gas, grand lake, gray phase, hydrologic models, jon hammond, leslie baehr, lodgepole pine trees, meltwater, mountain pine beetles, pyranometers, river basins, rocky mountain national park, salt lake city, ski resort, snow surface albedo, snowmelt, southern wyoming, tevis blom, transmission of sunlight, university of colorado boulder

A new University of Colorado Boulder study indicates the infestation of trees by mountain pine beetles in the high country across the West could potentially trigger earlier snowmelt and increase water yields from snowpack that accumulates beneath affected trees.

Led by CU-Boulder geological sciences department doctoral student Evan Pugh, the study was undertaken near Grand Lake, Colo., adjacent to Rocky Mountain National Park, an area that has been devastated by mountain pine beetle attacks in recent years. Mountain pine beetles have killed more than 4 million acres of lodgepole pine trees in Colorado and southern Wyoming since 1996, the most severe outbreak on record. (more…)

‘Ancient Hominid Males Stayed Home While Females Roamed’

By Guest PostJune 7, 2011Scienceantelope, australopithecus africanus, baboons, basalt, bipedal hominid species, bipedalism, darryl de ruiter, early hominids, ethiopian fossil, female teeth, fossilized teeth, gadabout gals, geological substrates, Germany, granite, high tech analysis, hominid family tree, hyraxes, julia lee thorp, laser ablation, leipzig, local geology, lucy, male hominid teeth, mammal teeth, matt sponheimer, max plank institute for evolutionary anthropology, paranthropus boisei, paranthropus robustus, quartzite, sandi copeland, sandstone, South Africa, south african savannah, sterkfontein and swartkans cave systems, strontium isotope, strontium isotope signatures, university of colorado boulder

The males of two bipedal hominid species that roamed the South African savannah more than a million years ago were stay-at-home kind of guys when compared to the gadabout gals, says a new high-tech study led by the University of Colorado Boulder.

The team, which studied teeth from a group of extinct Australopithecus africanus and Paranthropus robustus individuals from two adjacent cave systems in South Africa, found more than half of the female teeth were from outside the local area, said CU-Boulder adjunct professor and lead study author Sandi Copeland. In contrast, only about 10 percent of the male hominid teeth were from elsewhere, suggesting they likely grew up and died in the same area. (more…)

Study Shows Interactive Teaching Methods Double Learning in Physics Classroom

By Guest PostMay 15, 20111 commentEducationbose einstein condensate, carl wieman, carl wieman science education initiative, cognitive psychology, cu sei, cwsei, ellen schelew, eric cornell, interactive teaching methods, louis deslauriers, nobel prize, pedagogy, physics, physics class, university of colorado boulder

Interactive teaching methods significantly improved attendance and doubled both engagement and learning in a large physics class, according to a University of British Columbia study involving University of Colorado Boulder Distinguished Professor Carl Wieman that is being published today in Science.

Led by Louis Deslauriers, a post-doctoral researcher at UBC’s Carl Wieman Science Education Initiative, or CWSEI, the study compared the amount of learning students experienced when taught by traditional lecture and by using interactive activities based on research in cognitive psychology and physics education. The teaching took place for three hours over one week. (more…)

‘Ancient Bipedal Hominid Dubbed ‘Nutcracker Man’ Preferred Grass to Nuts’

By Guest PostMay 3, 2011Scienceafrican landscape, ancestors of humans, bipedal hominid, c3 photosynthetic, c4 photosynthetic pathway, carbon isotopes, emma mbua, hard fruit, hominid, huge molars, matt sponheimer, meave leakey, northern kenya, nutcracker man, nuts, paranthropus, paranthropus boisei, powerful jaws, savannah grasses, seeds, teeth, thure cerling, tropical environments, university of colorado boulder, zebras

An ancient, bipedal hominid sporting a set of powerful jaws and huge molars that earned it the nickname “Nutcracker Man” likely didn’t crack nuts at all, preferring instead to slurp up vast quantities of grasses and sedges, says a new study.

The hominid, known as Paranthropus boisei, ranged across the African landscape more than 1 million years ago and lived side-by-side with direct ancestors of humans, said University of Colorado Boulder anthropology Professor Matt Sponheimer, a study co-author. It was long assumed Paranthropus boisei favored nuts, seeds and hard fruit because of its huge jaws, powerful jaw muscles and the biggest and flattest molars of any known hominid in the anthropological record, he said. (more…)

Evolution of Human ‘Super-Brain’ Tied To Development of Bipedalism, Tool-Making

By Guest PostApril 22, 2011Scienceafrica, ants, archaeological evidence, archaeologist, Arctic, bees, bipedalism, don river, Europe, evolution of human mind, fossil, france, Germany, honeybees, human ancestors, human brain, human mind, john hoffecker, kostenk, lucy, modern mind, moscow, russia, social insects, stone tools, super brain, university of colorado boulder, waggle dance

Scientists seeking to understand the origin of the human mind may want to look to honeybees — not ancestral apes — for at least some of the answers, according to a University of Colorado Boulder archaeologist.

CU-Boulder Research Associate John Hoffecker said there is abundant fossil and archaeological evidence for the evolution of the human mind, including its unique power to create a potentially infinite variety of thoughts expressed in the form of sentences, art and technologies. He attributes the evolving power of the mind to the formation of what he calls the “super-brain,” or collective mind, an event that took place in Africa no later than 75,000 years ago. (more…)

Gulf Oil Spill Study Sheds Light On Urban Air Pollution

By Guest PostMarch 12, 20111 commentEnvironmentbp deepwater horizon, gouw, gulf oil spill, microscopic particles, noaa, organic aerosols, university of california, university of colorado boulder, university of miami, urban air pollution, urban environments, volatile components

When a team of researchers from the National Oceanic and Atmospheric Administration and the University of Colorado Boulder’s Cooperative Institute for Research in Environmental Sciences raced to the scene of the BP Deepwater Horizon oil spill to assess the disaster’s impact on air quality last year, they found more than they expected. (more…)

Stresses of Unemployed Spouse Can Hurt Job Performance of Other Spouse, Study Finds

By Guest PostFebruary 21, 20112 commentsCulture, Economyemployee's productivity, interpersonal relationships, journal of applied psychology, maw-der foo, national university of singapore, stresses of an unemployed spouse's job, unemployment situation, university of colorado boulder

Ignoring the stresses of an unemployed spouse’s job search does not bode well for the employed spouse’s job productivity or home life, says a University of Colorado Boulder professor.

Associate Professor Maw-Der Foo of CU-Boulder’s Leeds School of Business studies employee workplace issues, including those related to interpersonal relationships. (more…)

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