Sentences with phrase «ecosystem changes at»

Juday made his remarks at a workshop here sponsored by the National Academy of Sciences» Polar Research Board on climate and ecosystem changes at both poles.

Not exact matches

Highlights five trends that are changing payments, looking at how disparate factors, such as surprise elections and fraud surges, are sparking change across the ecosystem.

Finally, it highlights five trends that are changing payments, looking at how disparate factors, such as surprise elections and fraud surges, are sparking change across the ecosystem.

In the past few years, a new technological ecosystem built around Google's dominance in Web search and its decision to offer powerful software tools at no charge, has changed the economics of doing business on the internet.

Web denizens are a savvy bunch, and memes have a way of evolving around regulations (just look at how the infamous This Is Fine Dog continued to morph to meet the demands of a changing political ecosystem here in the U.S.).

The topics were informed by interviews with both industry and research, with some being primarily driven by advances and investment in science and technology while others require broader operational changes at the business and ecosystem level.

Climate change has certainly been good for the health of at least one ecosystem, judging from a piece that appeared in National Journal's Under the Influence blog this week:

His research group at Purdue examines how ecosystems and plant communities, in particular invasive species, interact with changes in the climate and atmosphere.

This blog appears in the In - Depth Report Science at the Sochi Olympics Climate change poses a well - documented threat to ecosystems and human populations worldwide.

At the same time, altered water availability and enhanced photosynthesis can change the amount of leaf, root and below ground microbial biomass, resulting in changes to ecosystem functioning.

He'd also looked at how climate change would affect the structure and function of desert landscapes and ecosystems.

By, for example, examining what people in the area use different trees and shrubs for and look at how the landscape changes, we can better understand how land use, social change, climate and ecosystems interact, even in ways that can be unexpected,» says Lowe Börjeson, Associate Professor at the Department of Human Geography, Stockholm University.

Future field experiments that can manipulate all three conditions at once will lead to better models of how long - term climate changes will affect ecosystems worldwide.

«It makes it harder to get at how things are changing in response to an ecosystem if you have this outlier.

As Germán Orizaola, co-author of the study published in the journal Ecology and a researcher at the Swedish university states «Among the many challenges climate change poses to natural ecosystems, the effect it can have on the dietary preferences of living organisms is a field of study that has been attracting researchers» attention in recent years.»

«It requires a little bit more work,» said Steve Crooks, climate change services director at the ecosystem consulting firm ESA PWA, who also sits as a member of two international blue carbon working groups.

We are driving massive long - term changes in the ecology of our planet, one ecosystem, one community, one species at a time.

First, they help determine the resilience of ecosystems on land and at sea, which in turn impact whether larger boundaries, such as climate change, are transgressed.

«The crane fly link was made as part of several longer - term studies — funded by The Natural Environment Research Council and Defra — investigating blanket bog ecosystems across several UK upland sites, including the Yorkshire Dales, Peak District and North York Moors.Dr Heinemeyer, who is currently leading a # 1m Defra - funded SEI project to further study the impacts of climate change and management on blanket bogs, said it wasn't only rare birds that were at risk from climate change.

Several rare upland bird species are being put at risk together with other ecosystem functions by the effects of climate change on the UK's blanket bogs, ecologists at the University of York have discovered.

From overfishing and pollution to coastal development and climate change, fragile coral ecosystems are disappearing at unprecedented rates around the world.

Co-author Matthew Spencer, who conducted the study while a sabbatical visitor at NIMBioS, said that the findings are not only important for predicting reef futures under climate change but could also be applied to other ecosystems.

New research using ancient animal depictions tracks the collapse of Egypt's ecological networks one extinction at a time, offering a glimpse into how climate change and human impacts have altered the structure and stability of ecosystems over millennia.

«Understanding climate change impacts is vital to help protect marine ecosystem services that humans rely on so heavily such as fisheries, aquaculture and tourism» said Dr. Rob Ellis, an ecological physiologist also based at Exeter University.

«This suggests that predicted ecosystem changes — including continuing advances in the start of spring across much of the globe — may be far greater than current estimates based on data from experiments,» said Elizabeth Wolkovich, a postdoctoral fellow at the University of California, San Diego, who led the study.

«The observed climate changes we report are not opinions, they are facts,» said report co-chair Jerry M. Melillo, director of the Ecosystems Center at the Marine Biological Laboratory in Woods Hole, Massachusetts.

In their article, «Quantifying causal mechanisms to determine how protected areas affect poverty through changes in ecosystem services and infrastructure,» Ferraro and Georgia State alumnus Merlin Hanauer, now on the Economics faculty at Sonoma State University, examine three potential causes of poverty reduction linked to the establishment of protected areas:

Humans depend on high levels of ecosystem biodiversity, but due to climate change and changes in land use, biodiversity loss is now greater than at any time in human history.

At the close of the Fourth International Polar Year, we take stock of the ecological consequences of recent climate change in the Arctic, focusing on effects at population, community, and ecosystem scaleAt the close of the Fourth International Polar Year, we take stock of the ecological consequences of recent climate change in the Arctic, focusing on effects at population, community, and ecosystem scaleat population, community, and ecosystem scales.

According to Fotini Koutroumpa, lead author of the study and researcher at the UvA's Institute for Biodiversity and Ecosystem Dynamics (IBED), the results point to future research on the tiny but complex moth brain, which will shed light on how the diverse pheromone systems of the thousands of moth species has changed throughout evolution.

In response, the U.S. Geological Survey began a study on changing Arctic ecosystems to better understand the consequences of lost permafrost and sea ice habitats, and the Interior Department established a Climate Science Center at the University of Alaska to specifically address Arctic issues.

The findings raise important questions about the relationship between atmospheric change and soil ecosystems, says Michael Miller, a soil ecologist at Argonne National Laboratory near Chicago.

Williams and his team also predict big changes in the Sahara — but because the desert is already the hottest biome on Earth's surface, there is no existing ecosystem to provide a guess at what an even hotter Sahara might look like.

Lead author Hilary Dugan, a limnologist at the University of Wisconsin - Madison and former Cary Institute of Ecosystem Studies Postdoctoral Fellow, explains, «We compiled long - term data, and compared chloride concentrations in North American lakes and reservoirs to climate and land use patterns, with the goal of revealing whether, how, and why salinization is changing across broad geographic scales.

Jef Huisman, an aquatic microbiology professor and theoretical ecologist at the University of Amsterdam in the Netherlands, said that the Princeton research shows that recently proposed early - warning signals for the desertification of arid ecosystems can be too simple, and possibly result in projections of future climate change that do not account for the complexity of nature.

«There is at present too little known about how marine ecosystems function in the Arctic, let alone how they will respond to the dramatic changes in progress, to prescribe safe harvest levels for living marine resources in the U.S. Arctic,» 43 marine scientists said in a letter to the Council chair.

The new study «represents our best understanding of how tropical secondary forests change over time,» says Jennifer Powers, an ecosystems ecologist at the University of Minnesota, Twin Cities.

Glen Hood, a Ph.D. student at Notre Dame and lead author of the paper, said, «Our study has impacted our understanding of evolution by suggesting that change in individual lineages can reverberate through different trophic levels of an ecosystem and increase community - level biodiversity.»

Alex said: «For years ecologists have struggled to test or extend models of ecosystem - level change because the data were too expensive to collect at the required scales.

The co-authors were «amazed» at this anatomy of the giant sequoia leaf that «indicates an ability to respond to local environmental signals» and furthers inquiry into the effects of climate change on forest ecosystems.

At a time when global warming is creating an imbalance in communities and when numerous species are invading ecosystems to which they were previously alien, these conclusions need to be taken into account if it is wished to predict the new interactions that will result from such changes.

Although the panel released few details, the statement said that those lower priorities include climate change and ecosystem research programs at USGS, which would see its budget drop by $ 101 million to $ 967 million; the Obama administration's request was $ 1.2 billion.

The Ramsar Convention, drawn up in 1971, requires signatory nations to register at least one wetland site and inform the Ramsar bureau of any possible changes to the ecosystem at that site.

«We'd like to find out how the marine ecosystem of the Antarctic Ocean is actually shifting or changing and not just look at whales but [also at] krill and the oceanographic situation,» Morishita said.

«While the changing seascape has dramatically altered and increased the diversity and number of small creatures at the base of the marine food web, we still don't know how these changes in the ecosystem will propagate through the entire chain.

«Secretary Zinke is giving Trump truly awful advice,» asserts John Hocevar, director of oceans campaigns at Greenpeace in Washington, D.C. «The science is clearer than ever that climate change is killing our coral reefs and that industrial fishing has had a huge impact on marine ecosystems that extends far beyond the fish they target.»

«Environmental changes would have produced a lot more fragmented, mosaic - type ecosystems, where populations of horses with similar demands and adaptations could have evolved isolated from one another, resulting in different species but with a similar appearance,» points Manuel Hernández Fernández at the Complutense Univerity in Madrid.

She is on leave from a position as a research scientist at the University of Wyoming where she researches the effects of climate change on plants and ecosystems.

«EbA is the use of biodiversity and ecosystem services as part of an overall adaptation to help people and communities adapt to the negative effects of climate change at local, regional, and global levels.»

Unfortunately, ecologists can't do much better at forecasting when an ecosystem is about to collapse or change dramatically.