Sentences with phrase «what ecologists»

The drought and climate change have allowed bark beetles to get the upper hand in swathes of forest in the Sierra Nevada, creating what ecologists call «pulses» of tree mortality.

This time the test was what ecologists term «beta» diversity: how species demographics vary across a landscape.

For decades the world's oldest national park suffered from managerial missteps that altered what ecologists call trophic relationships — those of soil to plant, plant to plant eater, and plant eater to carnivore.

They are an example of what ecologists consider infrequent, large - scale disturbances.

The ultimate goal is to restore what ecologists called the fire regime, a cycle of fire that aids in the dispersal of seeds and the renewal of soil and makes other important contributions to the health of forests.

In other words, plants are at the base of nearly all food chains, or what ecologists call the first trophic level.

Bertness likened the green crabs to scarecrows, which model what ecologists have recently begun to account for as «non-consumptive effects.»

Not exact matches

The modified flow at Weir 32 is a great example of what can be achieved when river operators, fish ecologists, and environmental water holders come together.

That we really need to step up in our fight and our knowledge in what we can do to help them,» said Cornell University Wildlife Disease Ecologist Dr. Krysten Schuler.

In what will look to many like a not - so - coded reference to the Tory mayoral candidate's privileged background, the new ad highlights the fact that Goldsmith's only job before entering politics was editing the Ecologist, a magazine owned by his late uncle Edward Goldsmith.

However, when word spread through the department that the federal register was open, all of us filled out the paperwork to have our names put on the federal civil service register as plant physiologists and plant ecologists, without knowing what that accomplished.

Australian microbial ecologist Jenny Skerrat writes about what it takes to do research in Antarctica — from personal traits to research project design — and the beneficial effect of the experience on her career.

The results may not seem surprising, but they shed light on how the avoidance of parasites can shape an entire ecosystem through what some call an «ecology of fear,» says Vanessa Ezenwa, a disease ecologist at the University of Georgia in Athens who was not involved in the research.

Ghazoul, the ETH Zurich forest ecologist, says what is even more exceptional than Białowiez˙a's biodiversity is that much of the forest remains wild.

A study by Isabel Schmidt, for instance, an ecologist at the University of Brasília, examined what time of year different species release their nearly microscopic seeds in order to identify which species are most impacted by harvesting.

«Nobody's ever just taken a bunch of soils and said, «Let's see what we have,»» says Noah Fierer, a microbial ecologist at the University of Colorado.

When he talked about his idea with environmentalists, ecologists, aboriginal groups and Boy Scout troops, every group asked the same question: What if one of your carp got loose in Europe?

The Duke medical researchers and ecologists who have joined that project hope to identify which species flourish in early stages of the human microbiome, how they are influenced by the consumption of breast milk, and what role they play in critical diseases affecting infants as well as in chronic diseases that occur later in life.

Few westerners have visited the world's most secretive state, but when an ecologist was invited in to help restore its environment, he was shocked by what he saw

For that reason, says Travis Longcore, an urban ecologist at the University of Southern California Dornsife who was not involved in the study, the new atlas only provides a minimal baseline for what are likely much larger levels of light pollution.

We did this by considering not only the hypothetical reduction that would occur if everyone undertook each action but by looking at what is behaviorally realistic,» explains ecologist and sociologist Thomas Dietz of Michigan State University, one of the authors of the study laying out the possibilities in this week's Proceedings of the National Academy of Sciences.

«What's problematic is that when it grows aggressively, it dramatically changes the landscape in ways that negatively affect native fauna and flora,» says University of Denver ecologist Anna Sher, who studies tamarisk and riparian restoration.

This is what makes the next step «so logical,» according to Maria Gloria Dominguez - Bello, a microbial ecologist at New York University School of Medicine in New York City: seeing whether the microbiome of a baby born by C - section could be shifted immediately after birth.

To find out what eats what in this ecosystem, fisheries ecologists Jason Turner and Jay Rooker of Texas A&M University in Galveston first analyzed the composition of fatty acids in Sargassum, a green algae that grows on seaweed fronds, and phytoplankton — microscopic organisms that photosynthesize like plants.

«She's a scientist who knows better than anyone in Brazil what's going on with measuring deforestation in the Amazon,» says Paulo Moutinho, an ecologist at the Amazon Environmental Research Institute in Brasília.

But what's true for a stand of saplings may not be true for a forest, says physiological ecologist Rich Norby of Oak Ridge National Laboratory in Oak Ridge, Tennessee.

At least, that's what a new study led by an Iowa State University ecologist suggests.

The study did not check the health of wolves or elk, however, and Joshua Millspaugh, a wildlife ecologist at the University of Missouri, Columbia, notes that it's not clear what glucocorticoid levels indicate potential harm to an animal.

This mismatch between these numbers and 1880 estimates of at least three billion suggests that the passenger pigeon may have been what is known to ecologists as an «outbreak» species, like locusts, that boom and bust with changes in conditions, rather than a species that experiences a singular population explosion, as Homo sapiens has in the last 200 years.

What we can hope to do is to set up these pockets of reproductive colonies,» says marine ecologist Diego Lirman at the University of Miami.

Ecologists can examine fossil remains to determine what really belongs in a given habitat.

By discovering what kind of life inhabits Antarctic lakes, John Priscu — a microbial ecologist at Montana State University in Bozeman who is analyzing samples from Lake Whillans — hopes to understand what sort of technology will be needed when probes are eventually sent to those frozen moons.

Plant ecologist Gian - Reto Walther of the University of Bayreuth in Germany says it is unclear what this finding bodes for the broader ecosystem.

Ecologist Maira Nurkisheva is driving over what was once the northern shore of the Aral Sea, a vast inland lake straddling the border between Kazakhstan and Uzbekistan.

Having spent five months in Antarctica working on the field team of ecologist and penguin expert, Bill Fraser, what most impressed me was the elegantly instinctive behavior of these knee - high penguins.

Ecologist Emilio Bruna, (pictured left) who knows what it's like to work in one of these environments, gives Science's Next Wave a peek into his life as a researcher in the Amazon.

Ecologists and engineers from Iraq and abroad launched efforts to not only preserve what was left of the wetlands but also restore them.

Now, ecologist Bradley Cardinale of the University of Michigan in Ann Arbor would like to know what makes the wild insects so efficient.

In Beyond Words: What Animals Think and Feel (Henry Holt, 2015; 480 pages), ecologist Carl Safina explores these intriguing questions.

«We need to be less sure about what land ecosystems will do and what we expect in the future,» says ecosystem ecologist Peter Reich of the University of Minnesota in St. Paul, who led the study.

«What we've found is so amazing, even I have a hard time believing it is true,» says Walt Koenig, a behavioral ecologist at Cornell University and the lead author of the paper.

The results show that murres «are really at the edge of what a bird can do,» says University of Missouri, St. Louis, seabird ecologist Robert Ricklefs, an author of the paper.

It's very hard to figure out what is happening to species as the climate warms, says Koos Biesmeijer, an ecologist at the Naturalis Biodiversity Center in Leiden, the Netherlands.

«There's a high degree of random effects» in what comes back, says Jefferson Hall, a forest ecologist at the Smithsonian Tropical Research Institute in Panama who was not involved with the work.

These birds may just be doing what their ancestors have been doing for millions of years, says Paul Haemig, an animal ecologist at the Governing Board of Jönköping province in Sweden.

Instead of focusing on those edges of a species range, Jonathan Lenoir, a plant ecologist at the Paris Institute of Technology in France, and colleagues decided to examine what climate change was doing to optimum ranges — the zones where most of a population lived — for plants in the mountain forests of western France.

«After we tagged the turtles, we had an informal bet about what they'd do,» says Graeme Hays, an ecologist at Deakin University, Warrnambool, in Australia and a co-author on the study.

«Ecosystems don't collapse; they shift from one steady state to another, and that's simply what happened here on Rapa Nui,» says Jut Wynne, an ecologist at Northern Arizona University's Merriam - Powell Center for Environmental Research.

It turns out, however, that what's bad for the wildebeest is good for the ecosystem, say Amanda Subalusky and Emma Rosi, ecologists at the Cary Institute of Ecosystem Studies in Millbrook, New York.

«People thought they knew what Asian elephants were doing [socially] based on what they saw them doing in captivity,» says Shermin de Silva, a behavioral ecologist with the Elephant, Forest and Environment Conservation Trust in Colombo, Sri Lanka, and the lead author of the new study.