When it rains for instance the pesticides are washed into rivers and lakes where in higher concentrations they can result in effects on aquatic organisms.
In gallery forests near rivers ring-tailed lemurs regularly sleep high in the canopies of tall trees.
and the amount of sediment entering the area's rivers and streams--and ultimately the Gulf of mexico.
The Lower Mississippi Alluvial Valley located in the historic floodplain of the Mississippi river stretches from Cairo Illinois south to the Gulf of mexico.
One of the largest coastal and river basins in the world the area is also one of the most affected by floods erosion and sediment deposition as a result of more than a century of converting bottomland hardwood forests to agricultural lands.
in the Lower Mississippi Alluvial Valley the frequently flooded agricultural land in the batture (land that lies between a river
The researchers chose two Lower Mississippi river Alluvial Valley watersheds--the large Lower Yazoo River Watershed
or near the battures on water outflow and sediment load (the amount of solid material carried by a river or stream).
For the Lower Yazoo River watershed a twofold increase in forest land area would result in approximately a twofold reduction in the annual volume of water outflow
and the mass of sediment load moving into the river. Story Source: The above story is provided based on materials by USDA Forest Service#Southern Research Station.
Applications extend to terrestrial data from less accessible sites such as deep lake basins or undisturbed river bed sediments.
and little light seeps in among the understory of the Cedar River Municipal Watershed about 30 miles east of Seattle.
and healthy river flows for fish said Rolf Gersonde who designs and implements forest restoration projects in the Cedar River Watershed.
Reservoirs in the western Cascades hold approximately a year's supply of water. That means when our snowpack is gone--usually by the summer solstice--our water supply depends on often meager summer rainfall to get us through until fall he said.
Biophysical and Social Barriers Restrict Water Quality Improvements in the Mississippi river Basin was published in the Nov 5 issue of Environmental science and Technology.
David said that the Gulf of mexico hypoxic zone that was measured in July 2013 was 5800 square miles (nearly the size of Connecticut) the result of riverine losses of nitrate and total phosphorus from the Mississippi river Basin.
This leads to an ever-widening trust gap that is a major barrier to effective collaboration and policy development for water-quality improvement in the Mississippi river Basin and beyond.
because it's long been assumed that nitrogen crucial to plant growth mainly arrived with floods of river water each spring according to Thomas Deluca a University of Washington professor of environmental
It also might lead to more accurate models of nitrogen in river systems because none of the prominent models consider nitrogen being fixed in floodplains Deluca said.
Scientists model nitrogen loading of rivers especially where industrial fertilizers and effluent from wastewater-treatment plants cause dead zones and other problems in the lower reaches
and mouths of rivers. Ten rivers and 71 flood plains were studied in northern Fennoscandia a region that includes parts of Scandinavia and Finland.
The rivers were chosen because their upper reaches are pristine haven't been dammed and are not subject to sources of human-caused nitrogen enrichment--much like river systems humans encountered there hundreds of years ago as agriculture emerged in such boreal habitats.
Boreal habitat--found at 60 degrees latitude and north all the way into the Arctic circle where it meets tundra habitat--is the second largest biome
or habitat type on Earth. In the northern regions of the boreal the surrounding hillsides have thin infertile soils and lack shrubs or herbs that can fix nitrogen.
but also contributed to global warming and the pollution of aquifers rivers lakes and coastal ecosystems.
or purify the rivers. To achieve lasting food and environmental security we need an agricultural soil ecosystem that more closely approximates the close and efficient cycling in natural ecosystems
and rivers to avoid detection. The field and CAO data confirmed up to 94%of the CLASLITE mine detections.
In addition to wreaking direct havoc on tropical forests gold mining releases sediment into rivers with severe effects on aquatic life.
That's according to a new report detailing the scientific findings of an experiment that planted fish in harvested rice fields earlier this year resulting in the fattest fastest-growing salmon on record in the state's rivers.
#Hypoxia Issues in the Gulf of Mexicothe Mississippi river Basin is home to much of the United states'fertile crop land.
Increasing nutrient levels affects our rivers lakes and oceans. Single cell plants called phytoplankton feed off the increased nutrients
The dead zone in the Gulf of mexico where the Mississippi meets the ocean has received much attention in the last decade and led to the creation of the Mississippi river/Gulf of mexico Watershed Nutrient Task force.
and there are fish consumption advisories for this contaminant in many Illinois rivers. DDT was banned in the U s. in the early 1970s after decades of widespread use.
The CU-Boulder study area included sites in the White river Routt Arapaho Roosevelt and Grand mesa national forests as well as in Rocky mountain national park.
Blue water is found in lakes rivers reservoirs or aquifers. It is used for many purposes such as drinking water water for homes and businesses and irrigation water for agriculture.
and could one day be used to prevent the transmission of deadly vector-borne diseases such as malaria dengue West Nile virus and yellow fever.
and excess fertilizer can find its way into rivers and streams damaging the delicate water systems.
The researchers validated the lab results with two experiments in the field--one with water culled from the Iowa River in Iowa City Iowa
or washing application equipment in rivers also contributes to contamination downstream. The team collected blood samples from 14 adult caiman and analyzed them for traces of 70 types of pesticide.
Traditionally however sewage treatment plants simply discharge the water into rivers or streams. The effluent still may contain traces of impurities including the remains of ingredients in prescription drugs antibacterial soaps cosmetics shampoos
For instance there are some areas along the river that contribute too much fertilizer runoff. An unexpected consequence of the payouts was that some farmers flush with cash over-fertilized their fields to boost crop yields.
The program is now using RIOS software developed at Stanford by the Natural Capital Project to pinpoint high-risk areas.
Another way of envisioning the volume of the resource potentially available worldwide each year is to imagine 14 months watching the outflow from the Mississippi river into the Gulf of mexico.
More than half was used for environmental purposes such as landscape irrigation recreation and river maintenance. Wastewater use in agriculture and industry is not substantial accounting only for 7%and 1%of the treated wastewater respectively.
The region is downwind of the Ohio river Valley coal power plants and experienced high amounts of acidic pollution--caused by sulfur dioxide emissions--in the 20th century.
Researchers analyzed tree rings back to the early 1900s when sulfur dioxide deposition throughout the Ohio river Valley began to increase.
and the Ohio river Valley had reduced fossil fuel emissions. Similar to the post-1980 data data from the 1930s showed improved tree growth and physiology.
Dr. Beth Middleton of the U s. Geological Survey National Wetlands Research center and Evelyn Anemaet of Five Rivers Services Inc. discovered a way to simplify the construction of dendrometer bands.
#Changing river chemistry affects Eastern US water suppliesuman activities are changing the basic chemistry of many rivers in the Eastern U s. with potentially major consequences for urban water supplies
In the first survey of its kind researchers looked at long-term records of alkalinity trends in 97 streams and rivers from Florida to New hampshire.
Over time spans of 25 to 60 years two-thirds of the rivers had become significantly more alkaline
Paradoxically higher acid levels in rain soil and water caused by human activity are major triggers for these changes in river chemistry said associate professor Sujay Kaushalof the University of Maryland.
and even concrete sidewalks dissolving alkaline particles that wash off into streams and rivers. Scientists have studied the effects of increased chemical weathering in small mountain streams tainted by acid runoff where the process can actually help rebalance streams'ph levels.
But researchers have not looked at the accumulating levels of alkalinity in downstream reaches of numerous major rivers
It's like rivers on Rolaids Kaushal said. We have some natural antacid in watersheds.
Alkalinity has risen over the past several decades in rivers that provide water for Washington D c. Philadelphia Baltimore Atlanta and other major cities the researchers reported.
Also affected are rivers that flow into water bodies already harmed by excess algae growth such as the Chesapeake bay.
But meanwhile there are these lagging effects of river alkalinization showing up across a major region of the U s. How many decades will river alkalinization persist?
The team focused on Eastern rivers which are often important drinking water sources for densely populated areas
The researchers also found that the chemical weathering of these carbonate rocks adds to the carbon burden in rivers
and rivers leading to aquatic'dead zones.''This is a whole new approach to plant nutrition says Dr Peter Leggo of the Department of Earth sciences who developed the material.
And when these dead massive trees topple into adjacent streams they disrupt water flow forcing the gushing river around over and under these new obstacles.
Moreover conservation of Primorye's forests and rivers sustains habitat for many other species: including eight salmon and trout species that spawn there;
Blakiston's fish owl is a clear indicator of the health of the forests rivers
#Geochemical fingerprints leave evidence that megafloods eroded steep gorgethe Yarlung-Tsangpo River in southern Asia drops rapidly through The himalaya Mountains on its way to the Bay of bengal losing about 7000 feet of elevation
Lang found that normal annual river flow carries about 40 percent of the grains from the Tsangpo Gorge downstream.
The Yarlung-Tsangpo is the highest major river in the world. It begins on the Tibetan Plateau at about 14500 feet or more than 2. 5 miles above sea level.
and plunging through The himalayas before reaching India's Assam Valley where it becomes the Brahmaputra river.
From there it continues its course to the Ganges river delta and the Bay of bengal. At the head of the Tsangpo Gorge the river makes a sharp bend around Namche Barwa a 25500-foot peak that is the eastern anchor of The himalayas.
Evidence indicates that giant lakes were impounded behind glacial dams farther inland from Namche Barwa at various times during the last 2. 5 million years ago.
and those signature zircons turned up in the flood deposits at a much greater proportion than they would in sediments from normal river flows.
Lang noted that a huge landslide in early 2000 created a giant dam on the Yiggong River a tributary of the main river just upstream from the Gorge.
Evidence suggests that Lake Missoula's ice dam failed numerous times unleashing a torrent equal to half the volume of Lake michigan across eastern Washington where it carved the Channeled Scablands before continuing down the Columbia river basin.
and food productiona new study released today finds that so much water may be lost in the Volta River basin due to climate change that planned hydroelectric projects to boost energy
Some 24 million people in Ghana Burkina faso and four other neighboring countries depend on the Volta River and its tributaries as their principal source of water.
Mccartney served as lead author for the study The Water Resource Implications of Changing Climate in the Volta River basin along with colleagues from Ghana's Council for Scientific and Industrial Research and Germany's Potsdam Institute for Climate
The Volta River basin encompasses 402000 square kilometers. Most of this area is in Ghana and Burkina faso with the remainder in Benin CÃ'te d'Ivoire Mali and Togo.
For farmers Mccartney said the solutions could include improving groundwater supplies available to rural areas by recharging local aquifers with water taken from rivers or reservoirs.
and technologically disadvantaged farmers living in remote villages who depend on contaminated ground water or local rivers for their daily water needs.
when African cultivated rice (O. glaberrima) was bred from the African wild species O. barthii in the Niger river delta.
The new species was collected in a narrow river valley dominated by mountain sainfoin (Onobrychis cornuta) wild almond (Prunus amygdalus) scoparia) and downy brome (Bromus tectorum.
#Snakes devour more mosquito-eating birds as climate change heats forestsmany birds feed on mosquitoes that spread the West Nile virus a disease that killed 286 people in the United states in 2012 according to the Centers
The researchers used next generation sequencing technology RNA sequencing to reveal in exquisite detail the blueprint for making milk in the human mammary gland according to Laurie Nommsen-Rivers Phd RD IBCLC a scientist
Nommsen-Rivers'previous research had shown that for mothers with markers of sub-optimal glucose metabolism such as being overweight being advanced at an maternal age
and carbohydrates for nourishing the newborn baby says Dr. Nommsen-Rivers. Considering that 20 percent of women between 20 and 44 are prediabetic it's conceivable that up to 20 percent of new mothers in the United states are at risk for low milk supply due to insulin dysregulation.
Dr. Nommsen-Rivers and her colleagues were able to use a noninvasive method to capture mammary gland RNA--a chain of molecules that are blueprints for making specified proteins--in samples of human breast milk.
While a drug is not an ideal way to solve the problem of sub-optimal glucose metabolism impairing breastfeeding according to Dr. Nommsen-Rivers it is excellent for establishing proof-of-concept through the use of a placebo controlled randomized clinical trial.
Dr. Nommsen-Rivers began her quest to understand why so many U s. mothers today struggle with low milk supply
The researchers used next generation sequencing technology RNA sequencing to reveal in exquisite detail the blueprint for making milk in the human mammary gland according to Laurie Nommsen-Rivers Phd RD IBCLC a scientist
Nommsen-Rivers'previous research had shown that for mothers with markers of sub-optimal glucose metabolism such as being overweight being advanced at an maternal age
and carbohydrates for nourishing the newborn baby says Dr. Nommsen-Rivers. Considering that 20 percent of women between 20 and 44 are prediabetic it's conceivable that up to 20 percent of new mothers in the United states are at risk for low milk supply due to insulin dysregulation.
Dr. Nommsen-Rivers and her colleagues were able to use a noninvasive method to capture mammary gland RNA--a chain of molecules that are blueprints for making specified proteins--in samples of human breast milk.
While a drug is not an ideal way to solve the problem of sub-optimal glucose metabolism impairing breastfeeding according to Dr. Nommsen-Rivers it is excellent for establishing proof-of-concept through the use of a placebo controlled randomized clinical trial.
Dr. Nommsen-Rivers began her quest to understand why so many U s. mothers today struggle with low milk supply
They focused on the Yahara River watershed which covers much of central portion of Dane County
and Management was done in a portion of the Metolius River watershed in the eastern Cascade range of Oregon
#Aerial mosquito spraying study finds no immediate public health risksin what researchers say is the first public health study of the aerial mosquito spraying method to prevent West Nile virus a UC Davis study analyzed emergency
which will likely magnify the incidence West Nile virus and the risks of human transmission.
Unfortunately West Nile virus is endemic in California and the United states and the controversy of mosquito management will likely arise every summer said Estella Geraghty associate professor of clinical internal medicine at UC Davis
West Nile virus has become an increasingly serious problem throughout the United states and may become more of a threat as the climate warms.
According to the Centers for Disease Control and Prevention West Nile virus is the leading cause of viral encephalitis in the United states. The virus is transmitted to humans and animals through the bite of an infected mosquito.
In California around the time of the study#2004 and 2005#hundreds of people were sickened by West Nile virus
and the killing of larval and adult mosquitoes#are used all in California to control the spread of mosquito-borne diseases such as West Nile virus
The article is titled Correlation between aerial insecticide spraying to interrupt West Nile virus transmission and emergency department visits in Sacramento County California.
The new species was collected in a wide river valley near mountain mixed forests dominated by various conifer trees bushes and rhododendron.
We also took into consideration major natural barriers such as the Great lakes in North america and the Amazon river in South america.
and Australia are responsible for reducing the regional diversity of invertebrates in streams and rivers by up to 42 percent researchers report in the Proceedings of the National Academy of Sciences (PNAS).
Illinois has a lot of land that is subpar for corn and soybeans such as the southern part of state and northern parts of the state along rivers.
From a base in Fairbanks Alaska the C-23 flies up to eight hours a day to sites on Alaska's North Slope interior and Yukon river Valley over tundra permafrost boreal
By 3000 BCE the Nile Delta was being planted with vines by Canaanite viniculturalists. As the earliest merchant seafarers the Canaanites were also able to take the wine culture out across the Mediterranean sea.
Rivers of wildebeests zebra and Thompson's gazelles--more than 2 million all told--cross the landscape in one of the largest animal migrations on the planet.
Current archaeological thinking is that it was the advent of rice cultivation along the Lower Yangtze river that marked the beginning of agriculture in southern China.
These buyers insist that swathes of bare ground wider than a football field is long separate the leafy greens from rivers wetlands and other wildlife habitat.
Fallow strips along streams and rivers provide corridors for migrating animals and birds. This is an area that is already 95 percent altered--the habitat that remains is said critical Gennet.
The Salinas River and its tributaries are an important rest stop on the Pacific Flyway a major migration route for neotropical songbirds and home to raptors and shorebirds.
An overabundance of fertilizer has created problems for domestic drinking water as well as the ecosystems of the Salinas River watershed and its outlet Monterey Bay.
In areas with similar climate and soils then there is potential for reducing the likelihood of flood generation based on increased soil water storage within a river's catchment.
#Deep, permeable soils buffer impacts of crop fertilizer on Amazon streamsthe often damaging impacts of intensive agriculture on nearby streams rivers
and rivers leading to over-fertilization and low-oxygen conditions that endanger fish and other aquatic life.
But in the bigger rivers we see a cumulative impact of all the extra water from those small streams piling up
When larger rivers have to handle that extra water caused by deforestation they change geomorphically;
Those are also rivers that people use for water supplies fishing and transportation. Finally the study showed that the agricultural streams were warmer than the forested streams caused both by a reduction in bordering forest
#oethe oxygen disappears as a result of fertilizer that washes off farm fields in the Midwest into the Mississippi river.
and phosphorous fertilizers that wash down the Mississippi river and the Atchafalaya River today than it was in the past.
Concentrations of fertilizer that caused a relatively small amount of oxygen depletion now are having a more profound effect.
Each year I bring my intent to continue to work for water quality in the Mississippi river watershed and its coastal ocean.
but surprisingly short for a drop of water from the Gulf of mexico to be transported inland and then flow with other droplets down the river to the ocean.
This paper also describes research at Clear Creek watershed (270 km2) a tributary of the Iowa River in eastern Iowa to create an environmental observing facility
of wetlands across the greater Amazon river basin including Pacaya-Samiria National park in Peru. Pacaya-Samiria contains large expanses of flooded palm swamps Mcdonald said.
The effects of acid rain can propagate through aquatic ecosystems such as lakes rivers and wetlands and terrestrial ecosystems including forests
and Puerto rico underscores the value of long-term data in understanding the patterns and causes of water quality changes in streams and rivers.
and Egypt's Nile Delta are danger zones where bird flu could combine with human flu to create a virulent kind of super-flu.
The study sites are located in the traditional homeland of the Tolowa people in the Smith River basin and vicinity of northwestern California.
Farmers use various water sources in the production of fresh fruits and vegetables including well water and different types of surface water such as river water or lake water--sources
The specific name of the species refers to the type locality the town Kei Mouth located at the estuary of the Great Kei River in the Eastern cape Province.
Although willow is a familiar inhabitant of wet soil it was not among the trees studied in the Sebangau River catchment in Borneo.
His study of the Haihe River in China funded by the Chinese government and published last year found tetracycline resistance genes are common in the environment there as well.
We tested water and river sediment and couldn't find a sample that didn't have said them he Our philosophy in environmental engineering is that an ounce of prevention is worth more than a pound of remediation Alvarez said.
Dr Helen Wickstead spotted an opportunity to delve below the surface of an area of land at the University's Seething Wells hall of residence after looking at historic maps and images of the area alongside the River Thames.
I expect it came from the river at some point and was caught up in the gravel used in the filter beds.
Astonishing ten new species of semiaquatic freshwater earthworms revealedthe semiaquatic earthworms in the genus Glyphidrilus are somewhat unfamiliar species that live between the terrestrial and freshwater ecosystems of rivers streams canals
In Thailand the species demonstrate astonishing biodiversity due to the monsoon climate contributing to drastic river system changes and a large variety of microhabitats.
River lake and wetland ecosystems--encompassing approximately one-fifth of the Amazon basin area--are being degraded increasingly by deforestation pollution construction of dams
The Madeira river basin for example is threatened by oil exploration deforestation and dams in its headwaters even though protected areas cover 26%of the catchment area.
By building upon existing protected areas it is possible to develop a river catchment-based conservation framework that protects both aquatic
and terrestrial ecosystems effectively protecting the Amazon river-forest system. The Amazon watershed spans six countries with Brazil Bolivia and Peru accounting for most of the area.
#West Nile virus spreading due to mosquitoes in orchards and vineyards, experts warnwashington State university researchers have linked orchards
and vineyards with a greater prevalence of West Nile virus in mosquitoes and the insects'ability to spread the virus to birds horses and people.
Since it was seen first in New york in 1999 West Nile virus has reached across the country and shown few signs of abating.
Crowder working with fellow entomologist Jeb Owen other WSU colleagues and the State department of Health merged data from a variety of sources including West Nile infections in humans horses
and American robins abundance of mosquitoes and the actual prevalence of West Nile in mosquitoes--are increasing in landscapes with a higher proportion of land in orchard habitats.
Runoff to the Colorado river increases by 28 percent and the Four Corners region experiences a 56 percent boost in runoff.
If we stop irrigating in the Valley we'll see a decrease in stream flow in the Colorado river basin said climate hydrologist Jay Famiglietti senior author on the paper which will be published online Jan 29 in the journal Geophysical Research Letters.
or river flow but lack investments in agricultural technologies that would enhance productivity. For this reason he said foreign corporations see in them strong potential for high-profit investments
At one site sampled over time the Tuichi River camera trapping has revealed that lowland tapir populations have been recovering following the creation of Madidi National park in 1995.
Leopard range has extended historically through most of Sub-saharan africa along parts of the North African coast through central south and Southeast asia and north to the Amur river valley in Russia.
In waterways adjacent to healthy pine forests concentrations of nitrate is generally far lower than in rivers on the plains in the West like the South platte said Lewis. Nitrate pollution is caused by agricultural runoff from populated areas and by permitted
The native Carolina Willow is also starting to strangle portions of the St johns river. Biologists at the University of Central Florida recently completed a study that shows this slender tree once used by Native americans for medicinal purposes may be thriving because of water-management projects initiated in the 1950s.
and Dianne Hall scientists from the St johns river Water Management District to run experiments that found ways to control the willow
which is taking over marshes in the upper St johns river basin UCF students helped plant hundreds of willow seedlings
and saplings onto small islands built for the project by the St johns river Water Management District's staff.
and continue enjoying recreational activities in the river Fauth said. The study may also aid other countries fighting the Carolina willow including Australia
former UCF biology student Luz M. Castro Morales and Ken Snyder of the St johns river Water Management District.
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