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Latest Systems ecology 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...

2012-11-20 22:51:03

Understanding warming requires long term studies that account for real-life complexity In the northern hardwood forest, climate change is poised to reduce the viability of the maple syrup industry, spread wildlife diseases and tree pests, and change timber resources. And, according to a new BioScience paper just released by twenty-one scientists, without long-term studies at the local scale–we will be ill-prepared to predict and manage these effects. Following an exhaustive review...

2012-11-20 11:49:20

Report finds that disturbances are shifting within beargrass habitat Beargrass is an ecologically, culturally, and economically important plant in the Western United States and, for the first time, landowners, managers, and harvesters now have a comprehensive report about the species. The report, Natural and Cultural History of Beargrass (Xerophyllum tenax), published by the U.S. Forest Service's Pacific Northwest Research Station, identifies critical knowledge gaps and areas for future...

Method To Predict Environmental Collapse Created By Scientists
2012-11-19 13:55:37

University of Southampton Scientists at the University of Southampton are pioneering a technique to predict when an ecosystem is likely to collapse, which may also have potential for foretelling crises in agriculture, fisheries or even social systems. The researchers have applied a mathematical model to a real world situation, the environmental collapse of a lake in China, to help prove a theory which suggests an ecosystem 'flickers', or fluctuates dramatically between healthy and...

How Nutrients Affect Plant Productivity Mapped By NASA
2012-11-02 06:46:06

NASA Jet Propulsion Laboratory A new analysis led by NASA's Jet Propulsion Laboratory, Pasadena, Calif., has estimated how much the growth of plants worldwide is limited by the amount of nutrients available in their soil. The maps produced from the research will be particularly useful in evaluating how much carbon dioxide Earth's ecosystems may be able to soak up as greenhouse gas levels increase. A research team led by JPL research scientist Josh Fisher used 19 years of data from NASA,...

Ecological Tipping Points Examined In Hopes Of Preventing Them
2012-10-31 09:26:37

University of California - Santa Barbara Predation by otters keeps urchin populations in check, allowing kelp —— a favorite food of urchins —— to flourish. But what if otters were harvested to near extinction for their fur? The resulting overabundance of urchins would decimate the kelp forest, leaving little food or shelter for fish and invertebrates. And so it may go, as declines in these species are likely to affect others. Such is the potential trickle-down...

Story Of Survival For Blown-Down Forests
2012-10-18 11:40:52

To preserve forest health, the best management decision may be to do nothing In newscasts after intense wind and ice storms, damaged trees stand out: snapped limbs, uprooted trunks, entire forests blown nearly flat. In a storm's wake, landowners, municipalities and state agencies are faced with important financial and environmental decisions. A study by Harvard University researchers, supported by the National Science Foundation (NSF) and published in the journal Ecology, yields a...

Pronghorn Use Newly Constructed Overpasses To Cross Highway
2012-10-17 15:25:47

The locations of the structures completed this fall were informed by data collected by WCS, the Wyoming Cooperative Fish and Wildlife Research Unit, and the Wyoming Game and Fish Department, and identified the pronghorn's preferred migration routes and highway crossing points. WCS has long studied an approximately 93-mile (150 km) migration of pronghorn between wintering grounds in the Upper Green River Basin and summering grounds in Grand Teton National Park (GTNP)–a migration...

2012-10-13 04:03:30

The 2012 wildfire season could soon be one of the worst on record. Family forest owners need all the conservation tools they can get, and yet resources for private forest owners have diminished steadily over the last decade. That's one reason why the American Forest Foundation launched MyLandPlan.org. Washington, DC (PRWEB) October 11, 2012 The 2012 wildfire season could soon be one of the worst on record. With more than 8 million acres burned by wildfire as I write this, forest...


Latest Systems ecology Reference Libraries

Rainforests
2013-04-19 19:33:20

Rainforests are forests that are characterized by high levels of rainfall, with definitions based on a minimum usual annual rainfall of about 68 to 78 inches. The monsoon trough, or otherwise known as the intertropical convergence zone, holds an important role in producing the climatic conditions that are essential for the Earth’s tropical rainforests. About 40 to 75 percent of all biotic species are native to the rainforests. It’s been estimated that there might be many millions of...

Taiga
2013-04-19 18:21:46

Taiga, or otherwise known as boreal forest, is a biome that is characterized by coniferous forests made up mostly of spruces, larches, and pines. The taiga is the world’s largest terrestrial biome. In North America, it covers most of inland Canada and Alaska as well as portions of the extreme northern continental United States and is known as the Northwoods. It covers most of Sweden, Finland, much of Norway, lowland/coastal areas of Iceland, much of Russia, northern Kazakhstan, northern...

Environmental Science
2014-01-12 00:00:00

Environmental science is a science that contains a wide range of scientific disciplines. These disciplines are grouped together based on the natural environment which they encompass and interact with. These sciences include physical, chemical, and biological components. Environmental science provides an interdisciplinary approach to the study of the environmental systems. The most common way environmental science is studied is through the work of one individual or small team drawing on the...

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Word of the Day
barghest
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).
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