Caribbean Lizards Evolve Independently
...imbs to move with greater efficiency on the narrow vegetation in their newhabitat. Examination of the populations 15 years after their establishmentconfirmed this prediction. "This finding is very exciting because it allows us to understand howspecies adapt to their environment at two very dif...... years ago the climate got progressively drier and vegetation became more and more sparse. So maybe what happened was the australopithecines couldn't get enough food and they died out." Gerald Eck, a University of Washington paleoanthropologist who participated in several expeditions with Johanson in Ethiopia,...Purdue Herbarium -- A Noah's Ark For Egyptian Plants
...y is irrigated, researchers will again analyze the vegetation to see how things have changed. "Purdue's Herbarium will be the only repository in the Western Hemisphere for this collection," Swinehart says. "It's a valuable research tool for this project and for scientists in the United States who want to study ...Bison Grazing Increases Biodiversity In Grasslands
...torically by these herbivores, diversity in native vegetation can be retained under conditions that would otherwise lead to a decline in species richness."..."A Little Bit Here" And "A Little Bit There" Can Add Up To A Big Problem
.... Landscape management and restoration, including vegetation buffersalong waterways and wetlands restoration, can greatly decrease the flow ofpollution into waterways. Additionally, the report recommends reducingfertilizer applications to better match crop needs, thereby reducing the amountof excess nutrients...UF Researcher's Innovative Fence Helps Control Sand Flies
... banned," Day said. "Besides, if you spray all the vegetation on theedge of the marsh with insecticide, you kill every insect that lands onthat vegetation, not just sand flies. "What we have essentially done is remove insecticide from the marsh. Webring the sand flies to the trap and catch them," Day said. "So ...USGS Scientists Find New Invasive Fish Species In Florida
... night. In the day, the fish hide in thick aquatic vegetation or in small burrows and crevices along the water's edge. In many populations, all young are hatched as females. Then, after spending part of their life as females, the eels transform into large males. Swamp eels belong to the family Synbranchidae, a...Banking On Safer Drinking Water
...tion by-products, a source of growing alarm. After vegetation decays,tiny bits of surviving plant material make their way into a watersource. In its natural state, this organic matter may affect howwater tastes or smells, but it poses no health risks. However,when treatment plants add a disinfectant to kill pat......p] obtained highest abundancesin submerged aquatic vegetation (SAV), oyster reefs, and abundant woody debris. With loss of marshes, removal of woody debris, decline of SAV, and demise ofoyster reefs, these organisms shifted to primarily shallow nearshore water." In the future, Dr. Brush may expand her sedimenta...Study 'Gone With The Wind' Provides Stellar Ecological Example
... Spiders and lizards werecompletely wiped out and vegetation greatly damaged on the 11 southwest, orcatastrophically hit, islands, whereas populations of lizards were reducedapproximately by one-third and those of spiders nearly 80 percent on thenortheast, or moderately damaged, islands. Vegetation was affect...Putting A Price Tag On Pollution
...toxic waste that seeps through the soil, affecting vegetation andwater supplies. It ismuch harder to measure and predict the corresponding levels of contamination,but it must bedone to justify the collection of fees. "Right now," says Ghanem, "predictions about the spread of groundpollutants are notvery re...Turtle Population Apparently Threatened By Urban Sprawl, Traffic
...s has a turtle story for me." The turtles live in vegetation near freshwater lakes, ponds and marshes. Theyare found in small numbers near the GreatLakes, west to Nebraska, Iowa and northeastern Missouri. Others are found inMaine, Massachusetts, New Hampshire,New York and Nova Scotia. Rubin's findings suggest ......ly more commonin areas covered primarily by native vegetation than in areas covered primarilyby exotic vegetation that have also experienced various levels of grazing. In 1990, researchers began monitoring 450 samp...Zinc In Sludge From Spanish Reservoir Break Equals Mine's Annual Output, Researchers Find
...om Doana National Park, a nearby wildlife reserve, vegetation andwildlife in other areas were exposed to the pollution, he said. Dr. van Geen plans to compare the nearby Tinto-Odiel watershed, ahistorically polluted area, to the two rivers contaminated by the mine spill. The Tinto and Odiel rivers are ...New Research Shows Loggerhead Sea Turtles Sustain Delicate Dunes
...ddition, insects and other herbivoresthat eat dune vegetation would suffer. Without the turtles, Bjorndal said, dunes receive nourishment from rainwater, algae tossed up by waves and terrestrial animals from behind thedune system that wander across the sand. But sea turtles provide a muchgreater quantit...History Of The Rainforest Told In Song
...uggests that birdsong may be useful in documenting vegetation changes onshort to medium time scales, or in documenting the impact of change on birdpopulations." Birdsong is adding to information gathered by other rainforest researchers aboutthe way the forest has ebbed and flowed since the last ice age, spreadi...Genetic Uniqueness Threatens Florida Manatee's Future
... watersand rivers, where seagrasses or fresh water vegetation are abundant, saidBowen, who is supervising Garcia's research. "It's very much against their well-being to travel across open water."Bowen said. "Out there, they are big, slow and tasty. We think they arejust a big shark egg roll, and that's one of t...Chinese And US Scientists Identify The World's Oldest Flowering Plant
... retrieved the fossilized remains of that scrap of vegetation and given it a label sure to get the attention of botanists and plant lovers everywhere. "This is the world's oldest flowering plant," said David Dilcher, a graduate research professor at the University of Florida. In a paper to be published Frid......search has demonstrated that landscape changes and vegetation dynamics have an influence on weather and climate that is at least as significant as what would be caused by a doubling of greenhouse gases. Dr. Roger Pielke of the National Center for Atmospheric Research and his panel will report on a range of rece......blished. Researchers are monitoring the effects on vegetation through direct fall and spring measurement of selected subplots supplemented by aerial photography of whole plots. ("The Effect of Nutria (Myocastor Coypus) on Marsh Loss in the Lower Eastern Shore of Maryland: Exclosure Study," by Michael Haramis, ...