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Latest Systems ecology Stories

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...

Health Of Marine Ecosystems Associated With Health Of Manatees
2012-10-03 12:40:10

April Flowers for redOrbit.com - Your Universe Online A team of scientists, led by George Mason University, have conducted a long-term study of manatees which may be a benchmark in determining health threats to marine mammals. The study, which ran over ten years in Belize, examined the behavioral ecology, life history and health of manatees in an area relatively undisturbed by humans. “Manatees are the proverbial ℠canaries in the mineshaft,´ as they serve as indicators...

Wildfires - Economic And Social Impacts
2012-09-16 05:57:54

April Flowers for redOrbit.com - Your Universe Online By the middle of August, nearly 7 million acres have burned in wildfires in the U.S. making this a record-breaking year for wildfire destruction. As of yesterday, the National Interagency Fire Center puts that number at 8,392,209 acres since January 1, 2012. This acreage comes from 712 large fires that have been contained so far this year. How does this kind of natural disaster affect the surrounding communities? Large wildfires,...

shutterstock_100054214
2012-09-09 11:35:57

Brett Smith for redOrbit.com — Your Universe Online Human activities and disturbances can put a significant amount of stress on local environments and a new research review has shown that the functional diversity in arid, desert environments can be affected by the hand of man. According the report published in the Journal of Arid Environments, mammalian communities living in dry ecosystems are "drastically changing" as a result of human activities. "We report for the first...


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
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.