Sentences with phrase «research plant ecologist»

The findings track with the growing body of research on the impact of insects on forest fire severity, said Carolyn Sieg, a research plant ecologist with the U.S. Forest Service.

Not exact matches

Laborious research in the 1960s by the late pioneering U.S. ecologist Eugene Odum seemed to indicate that forests achieve a balance between the amount of carbon dioxide (CO2) absorbed by growing trees and plants and the amount of CO2 released back into the atmosphere by the decomposition of dead plant matter.

The easiest way to keep cheatgrass from out - competing the native plants after a fire, says Dave Pyke, a rangeland research ecologist for the U.S. Geological Service, is to spread sugar on the charred ground.

That's a little worrisome, says Milena Holmgren, a plant ecologist at Wageningen University and Research Centre in the Netherlands, who was not involved in the rResearch Centre in the Netherlands, who was not involved in the researchresearch.

Dean Pearson, a research ecologist with the U.S. Forest Service, helped untangle the mess with his discovery that dear mice were feeding on the gall fly larvae in the seed heads of the plants.

The paper is «solid, exciting research,» says ecologist Chris Field of Carnegie Institution for Science in Palo Alto, California, who notes that various models have looked at ways different factors might affect future plant growth.

«Alien plants often gain advantages in their new environment because they lack natural enemies, and in this case the lack of strong competitors amongst alpine plants may be the key to success for generalist native species,» says ecologist Ann Milbau, assistant professor at the research station Climate Impacts Research Centre in Abisko,research station Climate Impacts Research Centre in Abisko,Research Centre in Abisko, Sweden.

Diverse plant communities are more successful and enable higher crop yields than pure monocultures, a European research team headed by ecologists from the University of Zurich has discovered.

For cattle, 22 years and more than 36,000 fecal measurements suggest that plants on U.S. grazing lands have grown poorer in protein, ecologist Joseph Craine of Jonah Ventures, in Boulder, Colo., and colleagues reported April 10 in Environmental Research Letters.

Applying this hypothesis to 122 forest plots catalogued by the Smithsonian Tropical Research Institute in Panama — ranging from the drier Pacific side of the isthmus to the wetter Caribbean side — plant ecologist Bettina Engelbrecht and her colleagues demonstrated that drought controls plant distribution.

«Previous studies at a few sites had shown that large trees suffer more than small trees during and after droughts, and our theory suggested this should be a globally consistent pattern, but this project was the first to test this hypothesis globally,» said Los Alamos National Laboratory's Nate McDowell, a renowned forest ecologist and plant physiologist who coauthored a paper in the journal Nature Plants highlighting this research.

Bruce Kendall is a quantitative ecologist whose research in population dynamics involves modeling and analysis of abundance (the number of individuals in a plant or animal population) and demographic (birth and death rate) data.

Dr. Skip Walker, a plant ecologist at the Institute of Arctic and Alpine Research at the University of Colorado in Boulder, said the study was «the first real evidence that this kind of movement may occur,» adding, «People have been suspecting it's been happening without being able to show it.»