Quantcast
Last updated on April 18, 2014 at 17:24 EDT

Latest Vegetation Stories

4d4caf614938a171dccea9ed4ae42aca1
2011-03-29 13:31:58

A new study funded by NASA has found that Amazon forests are losing their greenness due to last year's record-breaking drought. "The greenness levels of Amazonian vegetation -- a measure of its health -- decreased dramatically over an area more than three and one-half times the size of Texas and did not recover to normal levels, even after the drought ended in late October 2010," Liang Xu of Boston University and the study's lead author said in a statement. Researchers used computer models...

2011-03-15 13:27:26

A team of scientists from the Carnegie Institution for Science's Department of Global Ecology and the USDA Forest Service's Pacific Southwest Research Station (PSW) has developed new, more accurate methods for mapping carbon in Hawaii's forests. Their research appears in an online issue of the journal Frontiers in Ecology and the Environment. The growing market for private and public entities to purchase carbon offsets has led to a need to find better monitoring techniques to accurately...

2011-02-21 14:42:14

Led by scientists at Woods Hole Research Center A new study released today in the EarlyView of Ecology Letters addresses forest productivity trends in Alaska, highlighting a shift in biomes caused by a warming climate. The findings, conducted by scientists at the Woods Hole Research Center and three other institutions based in Alaska and France, linked satellite observations with an extensive and unique tree-ring data set. Patterns observed support current hypotheses regarding increased...

4c8b3e46cd8c2173f101982009a4cf6f1
2010-12-08 11:20:00

Climate forecasts for the region predict an advance of the desert about 300 kilometers to the north The fire disaster in the Carmel Mountains near Haifa is a typical example of climate change effect and a taste of the future, says Dr. Guy Pe'er, one of the authors of Israel's first report to the UN on climate change. Ten years ago, Dr. Pe'er and other Israeli scientists collated knowledge about the effects of climate change for Israel. They warned already in the year 2000 of expected climatic...

2010-12-06 23:19:20

Unique open-air laboratory enables study of a complete ecosystem in the making How do ecosystems develop? No one really knows, yet. There is however one project, unique in the world, seeking to answer this question. In a former open-pit coal mining area in Brandenburg, Germany, a surface of six hectares was partitioned off and then left to its own resources. Scientists from the Technische Universitaet Muenchen (TUM), in collaboration with researchers from other institutions, are studying the...

7b978f04498a21ffc8d568d0053a58bc1
2010-11-09 12:04:32

Swiss researchers studying the projected effects of climate change on alpine plant species have discovered that mountain ranges may represent a 'safer' place to live during changing climate conditions. The research, published in the Journal of Biogeography, finds that the habitat diversity of mountain ranges offer species 'refuge habitats' which may be important for conservation. The research, led by Daniel Scherrer and Christian Körner from the University of Basel, Switzerland, was...

6f8244106bfee94b8b171a216d05a547
2010-09-07 12:11:10

Using sophisticated airborne imaging and structural analysis, scientists at the Carnegie Institution's Department of Global Ecology mapped more than 40,000 termite mounds over 192 square miles in the African savanna. They found that their size and distribution is linked to vegetation and landscape patterns associated with annual rainfall. The results reveal how the savanna terrain has evolved and show how termite mounds can be used to predict ecological shifts from climate change. The...

2010-08-03 13:29:24

Recent research surrounding the impact of drought in the Amazon has provided contradictory findings as to how tropical forests react to a drier and warmer climate. A new study published in the August 2 Early Edition of the Proceedings of the National Academy of Sciences (PNAS) examines the response of Amazon forests to variations in climate conditions, specifically considering how those changes may influence forest productivity. These findings provide possible context for why previous studies...

5ab36bf3f7f35904ce68e98aeeabb4a91
2010-07-21 09:30:00

Using NASA satellite data, scientists have produced a first-of-its kind map that details the height of the world's forests. Although there are other local- and regional-scale forest canopy maps, the new map is the first that spans the entire globe based on one uniform method. The work -- based on data collected by NASA's ICESat, Terra, and Aqua satellites -- should help scientists build an inventory of how much carbon the world's forests store and how fast that carbon cycles through...

fbb65325c5c68c1a17ab8c0ec53b100a1
2010-06-15 07:48:18

Will Help Determine Places with Habitat to Support Wildlife The most detailed national vegetation U.S. land-cover map to date was released yesterday by the U.S. Geological Survey (USGS). The map will enable conservation professionals to identify places in the country with sufficient habitat to support wildlife. The map, produced by the USGS Gap Analysis Program (GAP), can be viewed online and downloaded for free. "These data are critical for determining the status of biodiversity, as...