oklahoma – Shamskm: A site to exchange knowledge and solutions

Black Bears Return to Missouri Indicates Healthy Forests, say MU Biologists

By Guest PostJuly 22, 2013Naturearkansas, bear population, black bears, genetic diversity, genetic fingerprints, genetic signatures, healthy forests, interior highlands, kaitlyn faires, lori eggert, minnesota, mississippi state university, missouri, missouri bears, North America, oklahoma, ozark forest, university of missouri

Outdoor recreationists should take precautions to avoid problems with bears in southern Missouri

COLUMBIA, Mo. — For nearly a century, the only bears known to reside in Missouri were on the state flag or in captivity. Unregulated hunting and habitat loss had wiped out most black bears in Missouri, Arkansas and Oklahoma by the 1920s. Now, thanks to a reintroduction program in Arkansas during the 50s and 60s, hundreds of bears amble through the forests of southern Missouri, according to a joint study by University of Missouri, Mississippi State University, and Missouri Department of Conservation biologists, who warn that although the bear population is still small, outdoor recreationists and homeowners should take precautions in the Ozark forest to avoid attracting bears.

“Black bears normally do not attack humans, but they will ransack picnic baskets, tear through garbage bags or even enter buildings looking for food,” said Lori Eggert, associate professor of biological sciences in MU’s College of Arts and Science. “Although some Missourians may be concerned, the return of black bears to Missouri is actually a good sign. It means parts of the state’s forests are returning to a healthy biological balance after nearly two centuries of intensive logging and exploitation.” (more…)

Biologically Best

By Guest PostJanuary 28, 2012Educationalex walter, article, bacterial protein, baylor university, becky maki, biologist, blood, cairo, cincinnati, egypt, evolutionary biology, florida, foundations of biology, fungal lineage, gretchen floan, iraqi war veteran, jonathan christenson, lisa hirsch, mark decker, mcgill university, mysterious, natural selection, nature of life, oklahoma, practicing biologists, robin wright, student, toxic metal, university of minnesota

*The U’s active learning biology courses garner attention*

What if you could remove lead from a person’s blood with a bacterial protein that snags the toxic metal?

Or treat spinal cord injury by shutting off a gene that prevents nerve regrowth?

Ideas like these used to be the exclusive province of practicing biologists. But they are among 14 ideas conceived and presented recently by students in the University of Minnesota’s introductory biology course. (more…)

Today’s Severe Drought, Tomorrow’s Normal

By Guest PostDecember 7, 2011Environmentatmospheric greenhouse gases, balance, benjamin santer, berkeley lab, canada, century, climate models, david easterling, drought, dust bowl, evapotranspiration, global climate, jay lawrimore, Mexico, michael wehner, noaa, normal occurrence, North America, oklahoma, precipitation, richard heim, russell vose, severe drought conditions, simulations, state-of-the-art, texas, united states, warming planet

*Berkeley Lab scientists part of team that analyzed 19 state-of-the-art climate models.*

While the worst drought since the Dust Bowl of the 1930s grips Oklahoma and Texas, scientists are warning that what we consider severe drought conditions in North America today may be normal for the continent by the mid-21^st century, due to a warming planet.

A team of scientists from the Lawrence Berkeley National Laboratory (Berkeley Lab), Lawrence Livermore National Laboratory (LLNL), and the National Oceanic and Atmospheric Administration (NOAA) came to this conclusion after analyzing 19 different state-of-the-art climate models. Looking at the balance between precipitation and evapotranspiration—the movement of water from soil to air—they found that no matter how rainfall patterns change over the next 100 years, a warming planet leads to drought. Their results were published in the December 2011 issue of the American Meteorological Society’s Journal of Hydrometerology. (more…)

Rising Air Pollution Worsens Drought, Flooding UMD-Led Study Shows

By Guest PostNovember 14, 2011Environmentaerosols, air pollution, air pollution and climate change, beijing normal university, climate change, climate scientist, cloud development, cloud drops, daniel rosenfeld, dust, economic gains, global satellite products, greenhouse gases and aerosol particles, hazardous to both human health and the environment, ice crystals, impact of aerosols on cloud height and thickness, intensity of severe storms, management and use of water resources, NASA, oklahoma, particulate matter in the atmosphere, polluted deep clouds, precipitation in dry regions or seasons, probability of heavy rain, rain, russell dickerson, small particles, snowfall, soot, stephen e schwartz, steve ghan, sulfate particles, tiny solid particles or liquid particles suspended in air, tony busalacchi, university of maryland, urbanization, us southern great plains, weather and climate, zhanqing li

COLLEGE PARK, Md. – Increases in air pollution and other particulate matter in the atmosphere can strongly affect cloud development in ways that reduce precipitation in dry regions or seasons, while increasing rain, snowfall and the intensity of severe storms in wet regions or seasons, says a new study by a University of Maryland-led team of researchers.

The research provides the first clear evidence of how aerosols — soot, dust and other small particles in the atmosphere — can affect weather and climate; and the findings have important implications for the availability, management and use of water resources in regions across the United States and around the world, say the researchers and other scientists. (more…)

Caltech-led Researchers Measure Body Temperatures of Dinosaurs for the First Time

By Guest PostJune 30, 2011Sciencealligators, apatosaurus, aradhna tripati, body temperatures of dinosaurs, brachiosaurus brancai, brontosaurus, california institute of technology, caltech, camarasaurus, dinosaur tracks, dinosaurs, enamel, environments, extinct crocodiles, Germany, gigantotherms, henry fricke, isotopic concentrations, john eiler, jurassic park, long necked dinosaurs, movie, oklahoma, paleontologists, robert eagle, sauropods, t rex, Tanzania, taylor martin, teeth, thermodynamics, thomas tütken, university of bonn, velociraptors, warm blooded, wyoming

*Some Dinosaurs Were as Warm as Most Modern Mammals*

PASADENA, Calif.—Were dinosaurs slow and lumbering, or quick and agile? It depends largely on whether they were cold or warm blooded. When dinosaurs were first discovered in the mid-19th century, paleontologists thought the y were plodding beasts that had to rely on their environments to keep warm, like modern-day reptiles. But research during the last few decades suggests that they were faster creatures, nimble like the velociraptors or T. rex depicted in the movie Jurassic Park, requiring warmer, regulated body temperatures like in mammals.

Now, a team of researchers led by the California Institute of Technology (Caltech) has developed a new approach to take body temperatures of dinosaurs for the first time, providing new insights into whether dinosaurs were cold or warm blooded. By analyzing isotopic concentrations in teeth of sauropods, the long-tailed, long-necked dinosaurs that were the biggest land animals to have ever lived—think Apatosaurus (also known as Brontosaurus)—the team found that the dinosaurs were about as warm as most modern mammals. (more…)

Tag Archives: oklahoma

Black Bears Return to Missouri Indicates Healthy Forests, say MU Biologists

Biologically Best

Today’s Severe Drought, Tomorrow’s Normal

Rising Air Pollution Worsens Drought, Flooding UMD-Led Study Shows

Caltech-led Researchers Measure Body Temperatures of Dinosaurs for the First Time