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Latest Jornada Basin LTER Stories

2012-12-03 13:48:40

Around the world, the effects of global climate change are increasingly evident and difficult to ignore. However, evaluations of the local effects of climate change are often confounded by natural and human induced factors that overshadow the effects of changes in climate on ecosystems. In the December issue of the journal BioScience, a group of scientists writing on long-term studies of watershed and natural elevation gradients at the Hubbard Brook Experimental Forest in New Hampshire and in...

Plant Diversity Key To Maintaining Productive Vegetation
2012-05-04 04:01:35

Long-term study finds that each species plays a role in maintaining a productive ecosystem Vegetation, such as a patch of prairie or a forest stand, is more productive in the long run when more plant species are present, results of a new study show. The long-term study of plant biodiversity found that each species plays a role in maintaining a productive ecosystem, especially when a long time horizon is considered. The research found that every additional species in a plot...

Image 1 - Time Of Year Important In Projections Of Climate Change Effects On Ecosystems
2012-02-15 03:40:30

Results of study on prairie grasslands show differences across the months Does it matter whether long periods of hot weather, such as last year's heat wave that gripped the U.S. Midwest, happen in June or July, August or September? Scientists studying the subtle effects of heat waves and droughts say that when such events happen makes a big difference. Based on more than 25 years of data from the National Science Foundation (NSF) Konza Prairie Long-Term Ecological Research (LTER)...

2012-02-09 04:10:16

Scientists address sustainability of agriculture; urban water systems; indigenous villages; marine environments From Canada to Chile, from Kazakhstan to Kansas, we are witnessing a fast-changing planet. What will it look like in the years, decades and centuries to come? How far, and in what ways, can Earth's systems be stressed before they undergo transitions to new states--with unforeseen consequences? For most of its history, Earth experienced vast alterations in response to...

2011-09-21 06:59:14

National Science Foundation Grants Awarded for Research on Coupled Natural and Human Systems Water quality and environmental health in Botswana; wetlands in a working landscape; the collapse of the ancient Maya and what that has to tell us about society and environmental change today. These and other projects that address how humans and the environment interact are the focus of $21 million in National Science Foundation (NSF) grants to scientists, engineers and educators across the...

2011-02-11 07:49:36

Scientists address climate change effects on ecosystems from grasslands to forests to open ocean Human activities such as burning of fossil fuels and land use change have increased atmospheric carbon dioxide by 40 percent since the start of the industrial revolution, researchers have found. The result is a hotter Earth, with warmer average temperatures around the globe and a future climate system that will be more variable, and with more extreme events, says Scott Collins, a scientist at the...

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2010-02-23 09:40:00

Results from Long-Term Ecological Research show importance of resources and processes supplied by ecosystems Humans are sustained by a multitude of processes and resources in the environment around us. These benefits are called "ecosystem services," and include products like clean drinking water and the provision of foods such as crops and spices. On Thursday, March 4, the National Science Foundation (NSF) will host a symposium titled, "Ecosystem Services in a Changing World: Perspectives...

2009-11-18 15:25:06

Nine research challenges and four research initiatives that are poised to advance the study of how Earth's landscapes change were unveiled today in a new report by the National Research Council. These challenges and initiatives could open the path to resolving environmental issues, from coastal erosion to landslides, by helping predict how processes such as wind, ice, water, tectonics, and living organisms drive changes in the Earth's surface. The development of new analytic and computing...

2005-07-08 19:00:00

In their article in the July 2005 issue of The American Naturalist, Yssa D. DeWoody, Zhilan Feng, and Robert K. Swihart (Purdue University) model species' occupancy within a patchy dynamic landscape. They derive deterministic persistence thresholds which depend jointly upon the spatial and temporal structure of the landscape, reinforcing the importance of spatio-temporal connectivity. This model has the potential to predict various consequences of different land-use strategies and thus serve...


Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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