Plentiful fossils of dinosaur contemporary allow population study
...location was a rift basin lake, one of a series of lakes from South Carolina to New Jersey that formed inland when the European continent pulled away from the American continent, forming the Atlantic Ocean. "Working with Tanys is cool because you find a lot of them still articulated the pieces of bone are...What have scientists learned since Mount St. Helens erupted?
...nic material. Within 6 years of the eruption, most lakes had returned to conditions typical of the undisturbed Cascade lakes. Whereas, by 2004, terrestrial systems had increased productivity, but remained far below that of a mature forest. "Even in areas where all life had perished, small-oasis habitats ...U. of Colorado research team discovers life in Rock Glacier
..., is similar to that found recently in semi-frozen lakes in the Dry Valleys of Antarctica. The unexpected ...ocean vents, clinging to ice in subterranean polar lakes and living in rocks two miles underground. Such microbes, known popularly as "extremophiles," also ...Study in Royal Society journal on first evidence for magnetic field detection in sharks
...tive radiation of freshwater gastropods in ancient lakes on Sulawesi, Indonesia by Dr T von Rintelen, Dr M ...olecular genetic analysis of the 33 species in the lakes has revealed four independent colonizations of the lakes, followed in each case by a radiation and c...Research team discovers first evidence of microbes living in a rock glacier
..., is similar to that found recently in semi-frozen lakes in the Dry Valleys of Antarctica. The unexpected ...ocean vents, clinging to ice in subterranean polar lakes and living in rocks two miles underground. Such microbes, known popularly as "extremophiles," also ...Queen's biologist awarded Canada's top science prize
...rom the impact of sewage and fertilizer run-off on lakes and rivers to the impact of increased ultraviolet radiation on freshwater life, and climate change. "I am of course tremendously honoured to receive the Gerhard Herzberg Canada Gold Medal," says Dr. Smol, who is Canada Research Chair in Environmenta...Urban ecology study witnessing the birth of a 'designer ecosystem'
... plant biomass, a lot more trees. There are little lakes scattered all over the place. Scottsdale since 1940 has gone from zero to 167 little lakes." However, the larger populations of birds that thrive in the city's oasis are not the same as those in the desert, but are less diverse in species, with "gen...Backcountry water quality tests are good news for campers
...at except for some heavily used areas, streams and lakes in the high country of the Sierra Nevada are gener...se two studies, we looked at nearly100 streams and lakes over the 400-mile long mountain range," observed Derlet, who has given presentations to wilderness r...WSU geologist uses satellite imagery to study surface water quality within Ohio River watershed
...rful tool to examine the water quality in streams, lakes and rivers because the area involved totals more than 200,000 square miles. "This would take hundreds of people and cost millions of dollars without the use of this space-age technology," he said. The Wright State geologist said the goal of the rese...Scientists discover unique microbe in California's largest lake
... gradually becoming one of the largest hypersaline lakes in the United States. Because it also receives the agricultural runoff of the Imperial Valley and municipal runoff from Mexicali, Mexico, considerable attention has focused on the fate of the now highly polluted water body. After massive fish kills a...Ecologists see the primeval wood for the trees
...llen, several thousands of years old, preserved in lakes and peat bogs to reconstruct primeval forest. But the analysis is open to interpretation, as Dr Mitchell explains: "As every hay fever sufferer knows, pollen blows about in the wind and this mixing of pollen from different sources places some impreci...Family trees of ancient bacteria reveal evolutionary moves
...ng that Cyanobacteria emerged first in fresh water lakes or streams is counterintuitive. "Most people have the assumption that Cyanobacteria came out of a marine environment after all, they are still important to marine environments today, so they must always have been," Blank said. "When Cyanobacteria...Scientists find both damage and promise for renewal in devastated Iraqi marshlands
... water, low salinity and the presence of permanent lakes and dense vegetation" in surviving parts of Al-Hawizeh "give hope that this area can function both as a refugium and native repopulation center for the region," the authors concluded. But their hopes for Al-Hawizeh were tempered by the possible impac...Internet viruses help ecologists control invasive species
...ing network theory, they built up a picture of the lakes as nodes in a network connected by human traffic, ...on hubs. According to Muirhead and MacIsaac: "Some lakes invaded by the spiny water flea may serve as invasion hubs if departing boaters and anglers travel t...Researchers investigate 'whole farm' approach to reduce dairy pollution
... streams and rivers by heavy rains.Once it reaches lakes and reservoirs, phosphorus itself never reaches toxic levels. At elevated levels, however, it can result in rapid algae growth. Runaway algae growth can result in fish kills through oxygen depletion and the production of phytotoxins. In light of the...Man-made wetland's effectiveness similar to natural marsh
... Each spring, the rush of chemicals that runs into lakes and streams in the Mississippi watershed an area encompassing about 40 percent of the United States ultimately turn more than 7,000 square miles of the Gulf of Mexico into a "dead zone," a condition known as hypoxia. Hypoxia happens when excess nut...Aggressive aquatic species invading Great Lakes
...d about the effects on native species in the other lakes that gobies have now spread to," says Balshine....Researchers trace evolution to relatively simple genetic changes
...sticklebacks. Marine fish colonized new freshwater lakes and streams when the last ice age ended 10,000 to ...mored and fast," Kingsley said. "Now, in countless lakes and streams around the world these low-armored types have evolved over and over again. It's one of t...Same mutation aided evolution in many fish species, Stanford study finds
...nct populations when they colonized new freshwater lakes and streams, they are an ideal model for understanding how animals adapt to their unique environments. The recent work carries a few surprises. Kingsley said that the gene in question, called Eda, is an old friend to laboratory researchers who have f...U. of Colorado study shows early Earth atmosphere hydrogen-rich, favorable to life
...ent may have accumulated in the oceans or in bays, lakes and swamps, enhancing potential birthplaces for life, the team reported. The new study indicates the escape of hydrogen from Earth's early atmosphere was probably two orders of magnitude slower than scientists previously believed, said Tian. The lo...