Sentences with phrase «on grassland»

«We can identify the impacts of climate extremes on these grassland ecosystems by comparing ecosystem performance in each year to the perfect curve,» said Yi.

Wildfires that break out during fire deficits can be unnaturally large and severe.10 - 12 In addition, the introduction of non-native species, especially invasive grasses, can have significant impacts on grassland wildfires as these plants can provide fuel for fires.13

«Although birds in this study were shown to compensate by switching to other seed types, the findings suggest that the capacity of grazed lands to support similar numbers of birds as ungrazed lands may be compromised,» according to the Vermont Center for Ecostudies» Rosalind Renfrew, an expert on grassland bird conservation who was not involved in the study.

In this new study, the researchers therefore used data from 46 experiments on grassland plant diversity in order to test the hypothesis of a positive effect of biodiversity on the resistance and resilience of ecosystems to various climate events, from drought to extreme rainfall.

Zelikova et al. studied the effects of elevated CO2 on grassland in in Wyoming over 8 years and found that the plant productivity stabilized over time.

In some regions, greening could be caused by species change, with greener invasive plants replacing indigenous ones or bushes encroaching on grasslands that are used to graze cattle, Wang said.

On a larger scale, communities and even corporations are doing their part to create areas of restored prairies which in turn will store organic carbon in the soil and help maintain the biodiversity of 3000 plus species that count on the grasslands for food and shelter.

«Grasses don't fare as well as shrubs, which is really important to know because cattle ranchers depend on grasslands to graze their herds.

Researchers measured the rate at which soil absorbed water on grasslands with active pika colonies and in places where pikas had been exterminated for more than 2 years.

In realistic terms, any major effort to supply additional plant protein for human consumption in the U.S. would require dismantling the nation's agricultural system, since most of American agriculture is directly or indirectly involved in producing livestock either through direct grazing on grasslands or by growing feed on cultivated land.

For millennia they have lived on the steppes, grazing their livestock on the grasslands.

European dogs weren't cut out for the special challenges of life on the grasslands, or veld, the Afrikaans word for «field,» where the Europeans established their farms and plantations.

Siberia being seasonally cold with wholly Mammoths grazing on the grasslands.

The group wanted her to study the land they were ranching to see if putting compost on grasslands might stimulate the landscape to siphon carbon out of the atmosphere and incorporate it into the soil.

«All these ecosystem services add up to societal relevance in the region, where around half a million farmers rely on these grasslands for their main activity: cattle and sheep production.»

Regional climate modelling indicates that CO2 - fertilisation effects on grasslands may scale - up to affect regional climate (Eastman et al., 2001).

This common plant is found on grasslands, especially on neutral soils.

Not exact matches

(Incidentally, we don't know how many people died in the Great Leap Forward, piled up in village ditches or abandoned on empty grasslands: the 16.5 million once given in official tolls or the 45 million estimated by some historians.)

A pilot program on offsetting for native grassland perennials was established in southeastern Alberta.

Indeed, language may be THE most important ingredient in why and how we changed from just another band of hominids on the African grasslands to a truly global species that has dominated the environment, for good and ill, like no other species in history.

The three - hour drive on excellent highways took us through rolling grassland, patches of forests, lakes with trout in them, and mountain passes — but no jungles.

«Australia's grasslands are good and its environment is good and so Australia produces quality products,» the company's chairman Liu Yonghao said on Thursday.

Milk suppliers in Kerry and Limerick facilitated on farm visits which provided the students with an excellent overview of grassland management techniques and training on grass measurement.

Lambs are set to pasture on vast, natural grasslands and treated humanely to honor the animals.

Daterra was kind enough to send me a short list of more typical grassland species found on their protected areas.

On the lee slope of Mauna Kea, where the grasslands burnished by the sun are interspersed with brush and clumps of mamani trees, public hunting grounds stretch from 6,000 feet elevation up over the volcanic rubble that caps Mauna Kea at 13,800 feet.

It's also a chance to explore the shores of the Fox River and grassland and woodland on a mix of paved and unpaved trails and boardwalk.

Our habitat restoration work includes unique experience creating grassland bird habitat on recently closed landfills.

Woods, prairies, wetlands and grasslands offer district residents opportunities to view wildlife and reflect on nature right in our community.

Results led directly to control activities focusing on protection of habitat for grassland nesting birds.

With the restoration nearly complete, Mass Audubon has the opportunity to establish a wildlife sanctuary on 479 acres of wetlands, woods, and grasslands and to partner with the Town of Plymouth to protect an additional 139 acres, for a total of 618 acres conserved.

Grasslands mixed with south coastal shrublands and forests dominate Ghana, with forest extending northward from the south - west coast of Ghana on the Gulf of Guinea in the Atlantic Ocean 320 kilometres (200 miles) and eastward for a maximum of about 270 kilometres (170 miles) with the Kingdom of Ashanti or the southern part of Ghana being a primary location for mining of industrial minerals and timber.

North Hempstead's Town Council is proposing a ban on all - terrain vehicles in response to residents» concerns and to protect park grasslands.

One was surplus marginal grassland on the school site, the sale of which allowed investment in the school library and sports changing facilities.

She uses this knowledge of plants, and specifically their leaf waxes, to document past changes in plant life and rainfall patterns, including studies on the expansion of grasslands in Africa and the revegetation of Antarctica during a prior warming event.

GREENHOUSE GASSED In a long - running field experiment in Minnesota, scientists are studying the effects of rising atmospheric carbon dioxide levels on plots of grassland.

In a provocative appearance on the video blog Ted Talks, biologist Allan Savory said desertification of the world's grasslands may be releasing more carbon into the atmosphere than burning fossil fuels.

If we can conserve that forest or wetlands or grasslands that are being lost and emitting CO2 into the atmosphere, we are also conserving habitat for the wildlife of the Earth; so Congo basin, Amazon rainforest, the wetlands of Southeast Asia, the peat forests of Southeast Asia and on and on — and also the Alaskan frontier.

In a project she is coordinating, farmers are experimenting with grassland restoration on fields they have been forced to retire because of groundwater depletions.

Just 2 months after the Aru disaster, Chinese scientists were on hand when a surge from an adjacent glacier engulfed another swath of grassland.

«Previous studies of the impacts of drought on flowers and bees have looked at individual species, often in the laboratory, but we used an experiment with rain shelters to examine the effects on real communities of plant species living in chalk grassland,» said Dr Ellen Fry from the University of Manchester, who set up the experiment.

By looking at 25 years of data on the Konza Prairie Biological Station, Allison Veach, doctoral student in biology, Muncie, Indiana, and Walter Dodds, university distinguished professor of biology, are researching grassland streams and the expansion of nearby woody vegetation, such as trees and shrubs.

Like his father and grandfather, Trampe, 68, harvests alfalfa on what is now 6,000 acres of picturesque rolling hay crops and grassland 30 minutes outside the town of Crested Butte.

The researchers — led by Brett Sandercock, professor of biology — discovered that wind turbines have little effect on greater prairie chickens, and that these grassland birds are more affected by rangeland management practices and by the availability of native prairie and vegetation cover at nest sites.

The researchers focused on three factors that affect grassland streams: burn intervals; grazers, such as bison; and the historical presence of woody vegetation.

Severe droughts are on the rise in many regions worldwide and are increasingly affecting a wide range of ecosystems — including marshes, mangroves, temperate and tropical forests, grasslands and coral reefs — that provide essential services to humans and the environment alike, Silliman said.

For decades anthropologists have argued the «savanna hypothesis»: that bipedalism evolved on the savannas of Africa as spreading grasslands forced our ancestors to walk increasing distances across open territory.

The University of Guam research focused on the established use of non-native Acacia trees to re-vegetate barren scars in savanna grasslands.

One of the most important exoplanetary biosignatures is a specific reflection pattern on the land surface named «red - edge», which is caused by vegetation such as forests and grasslands.

Here, in preparation for cattle grazing every spring, dried grass on the caldera is burnt, maintaining the area as a grassland.