Sentences with word «phragmites»

University of Rhode Island ecologist Laura Meyerson and colleague Jim Cronin from Louisiana State University conducted an ambitious large - scale National Science Foundation funded study on native and invasive Phragmites australis (common reed) in North America and Europe.

They conducted similar surveys of 21 patches of Phragmites in Europe from Norway to southern Portugal.

Danger in the Reeds is a series of documentary videos developed to educate the public about an aggressive invading plant, Phragmites australis, which is pushing out the natural diversity with dense, monoculture stands of tall reeds with deeply penetrating roots.

«Because we found that all of the insects perform better on the native than on the invasive type, it suggests to us that if a biocontrol is released in North America, it's going to harm the native Phragmites more than the invasive,» they said.

Getting rid of phragmites without resorting to hazardous chemicals that will kill other plants and poison the surrounding environment takes persistence, patience and proper timing

Tidal restrictions, or constrictions, which alter the flow of salt and fresh water have a major effect on the conditions which can favor the growth of the invasive reed Phragmites.

As part of Mass Audubon's Salt Marsh Science Project, scientists and students have been measuring the salinity (salt content) of water at different depths to learn whether Phragmites distribution within the salt marsh is controlled by ground water (water deep below the ground surface that is the source of well and spring water) or interstitial salinity (water just below the ground surface from the tide).

He never misses a chance to visit a certain clump of reeds called phragmites in a pond in Central Park; he stops there when he's in New York City the way some people make a point of popping into Zabar's.

The model also suggests focusing efforts to control invasive vegetation — particularly for phragmites, a widespread invasive grass — in late summer rather than early fall.

We are pleased to offer you these tried and true methods for studying Phragmites, vegetation, fish and salinity in salt marshes.

Changes in Salt Marsh Vegetation, Phragmites Australis, and Nekton in Response to Increased Tidal Flushing in a New England Salt Marsh

Civic association president John Betsch said residents living near the pond noticed phragmites started to crowd the pond about a year ago.

As phragmites plants continue to spread throughout Great Pond in Southold, the Kenney's - McCabe's Beach Civic Association is seeking help from the town to address the problem before the invasive species overtakes the pond.

Mowing phragmites, a tall and sturdy invasive grass, also dispersed a host of bird species that liked to roost in the grass, Allan said.

«Our data suggests that it would be ill advised to release a biocontrol agent against Phragmites.»

At each site Meyerson and Cronin measured plant biomass and defenses against herbivores and quantified insect damage by galling, chewing and sucking (aphids) insects to measure the effects of herbivory on Phragmites fitness.

The project area is overcome with the invasive weed Phragmites, or common reed, making natural regeneration impossible.

Since 1996, students in grades 5 through 12 on the North Shore have been working with Mass Audubon scientists to learn about salt marshes and common reed (Phragmites australis), an invasive plant that grows in salt marshes.

The threat of brush fires is low for most of the city except Staten Island — which has had several large blazes in recent years linked to the prevalence of invasive reeds called phragmites that can quickly fuel the flames, the New York Times reported.

Group for the East End vice president Aaron Virgin also addressed the Town Board on the issue Tuesday, saying he believes an increased density of phragmites could turn the freshwater pond into more of a wetlands area that can't sustain creatures such as fish.

Based on their results, Meyerson and Cronin believe that efforts to identify an insect that could be used as an agent of biocontrol for the invasive Phragmites may do more damage to the native species than to the invasive variety.

One of our objectives with prescribed burns is to eradicate invasive non-native species such as cattails, phragmites and purpleloose strife which diminish the ecosystem and its value for wildlife.

We are investigating whether Phragmites are spreading in the salt marsh, how fast Phragmites are spreading, and whether the height and spread rate is impacted by different salinity (salt content) levels.

Mass Audubon scientists are leading efforts to monitor the vegetation of salt marshes over time, particularly where the Phragmites are growing.

Depending on the wind speed, phragmites can burn between the size of one to three football fields per minute, the Times reported, and elected officials have worked to develop a plan to decrease the risk of fires in the borough.

«We had observed that these phragmites - invaded basins would become colonized by large communal roosts of birds,» he said.

The team, led by University of Illinois postdoctoral researcher Andrew Mackay, found that mowing down cattails and phragmites, two invasive plants that tend to permeate stormwater basins, adds a lot of plant debris to the water.

In their study of native and non-native sub-species of P. australis on both continents, they also found that herbivores feed upon the native Phragmites in North America at a much greater rate than on the invasive Phragmites.

In their study of native and non-native sub-species of P. australis on both continents, researchers found that herbivores feed upon the native Phragmites in North America at a much greater rate than on the invasive Phragmites.

To determine whether differences occurred in resistance to herbivory, Meyerson and Cronin surveyed 13 patches of native Phragmites and 17 patches of non-native Phragmites along the East Coast from Canada to Florida.

The once dense and ubiquitous common reed (Phragmites australis) served as raw material for homes, handicrafts, tools, and animal fodder for thousands of years.

«Our native Phragmites in North America is getting hammered by both native and introduced insects, whereas the invasive Phragmites in North America suffers far less herbivory than it does in its native Europe,» she said.

«This means that the invasive plants suffer less herbivory at lower latitudes than the native plants, giving the invasive Phragmites a greater opportunity to invade.

«People love that phragmites,» he says.

Michael Singer: First Gate Ritual Series 10/78, 1978; stones, wood, and phragmites; 9» x 13» x 15»; lent by Sperone Westwater Fischer, Inc., New York.

Working on a piece of acrylic gessoed hardboard with acrylic paints, and with his two references visible — the heron on his tablet and the phragmites on the main screen — he began by blocking in some directional lines to indicate the reeds.