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News articles about "Ecosystems"

Global warming: Four degree rise will end vegetation 'carbon sink', research suggests

carbon, Global warming, Global warming, Carbon
Latest climate and biosphere modelling suggests that the length of time carbon remains in vegetation during the global carbon cycle known as 'residence time' is the key uncertainty in predicting how Earth's terrestrial plant life ... - Read More

Risk assessment for pesticides in EU unsuitable for use in field

Risk assessment
The method used to approve pesticides in the EU needs to be revised This was confirmed by a recent study by the Institute for Environmental Sciences Landau According to the study the level of fungicides ... - Read More

Living desert underground: In perpetual darkness of limestone cave, surprisingly diverse ecosystem of microbes

Ecosystem, Ecosystem
Hidden underneath the hilly grasslands studded with ocotillos and mesquite trees in southeastern Arizona lies a world shrouded in perpetual darkness Kartchner Caverns a limestone cave system renowned for its untouched cave formations sculpted over ... - Read More

How scavenging fungi became a plant's best friend

Fungi
Glomeromycota is an ancient lineage of fungi that has a symbiotic relationship with roots that goes back nearly 420 million years to the earliest plants More than two thirds of the world's plants depend on ... - Read More

Impacts of plant invasions become less robust over time: Invasive plants are more likely to be replaced by other 'invasives'

Time
Among the most impressive ecological findings of the past 25 years is the ability of invasive plants to radically change ecosystem function Yet few if any studies have examined whether ecosystem impacts of invasions persist ... - Read More

New generation of micro sensors for monitoring ocean acidification

Ocean, Ocean
The first step in developing a cost effective micro sensor for long term monitoring of ocean acidification has been achieved by a team of scientists and engineers The new technology that will measure pH levels ... - Read More

Evidence of 3.5-billion-year-old bacterial ecosystems found in Australia

Ecosystems
Reconstructing the rise of life during the period of Earth's history when it first evolved is challenging Earth's oldest sedimentary rocks are not only rare but also almost always altered by hydrothermal and tectonic activity ... - Read More

Methane-munching microorganisms meddle with metals

Metals, Microorganisms
On the continental margins where the seafloor drops hundreds of meters below the water's surface low temperatures and high pressure lock methane inside ice crystals Called methane hydrates these crystals are a potential energy source ... - Read More

Clean Air Act has led to improved water quality in the Chesapeake Bay watershed

Water, Water, Water
A new study shows that the reduction of pollution emissions from power plants in the mid Atlantic is making an impact on the quality of the water that ends up in the Chesapeake Bay The ... - Read More

Warming will disturb balance of soil nutrients in drylands, make drylands less productive

Phosphorus, Nitrogen, nitrogen, phosphorus
An increase in aridity due to global warming will disturb the balance of nutrients in the soil and reduce productivity of the world's drylands which support millions of people a landmark study predicts The research ... - Read More

Earthworms invade New England

Carbon, carbon
Beavers reshape landscapes with their dams Wolves control elk populations Sea otters protect kelp forests by eating sea urchins These are what ecologists call keystone species critters that control an ecosystem and have a disproportionate ... - Read More

Breathing underwater: Evidence of microscopic life in oceanic crust

Crust
Although long thought to be devoid of life the bottom of the deep ocean is now known to harbor entire ecosystems teeming with microbes Scientists have recently documented that oxygen is disappearing from seawater circulating ... - Read More

Microbes facilitate the persistence, spread of invasive plant species by changing soil chemistry

Soil chemistry
Invasive species are among the world's greatest threats to native species and biodiversity Once invasive plants become established they can alter soil chemistry and shift nutrient cycling in an ecosystem This can have important impacts ... - Read More

Can bacteria combat oil spill disasters?

Bacteria, bacteria
Teams of international scientists have decrypted the effectiveness of two types of bacteria which could be used in the future to help combat oil spill disasters According to a report written by scientists from the ... - Read More

Concepts for Houston, Texas flood barrier

Ecosystems, Gas
This month it will be exactly five years ago that Hurricane Ike caused enormous damage in and around Houston and Galveston in the US state of Texas With more than $38 billion in damage and ... - Read More

Tiny plankton could have big impact on climate: CO2-hungry microbes might short-circuit the marine foodweb

marine, Marine, Climate, climate
As the climate changes and oceans' acidity increases tiny plankton seem set to succeed An international team of marine scientists has found that the smallest plankton groups thrive under elevated carbon dioxide CO2 levels This ... - Read More

Carbon farming schemes should consider multiple cobenefits

Carbon markets and related international schemes that allow payments to landholders for planting trees sometimes called carbon farming are intended to support sequestration of carbon from the atmosphere But they will have harmful effects such ... - Read More

Rare earth metal essential element for methane-munching acid-volcano microbe

Acid
Nijmegen microbiologists have shown that the rare earth metal Cerium is essential for the methane oxidizing bacteria which they discovered in 2007 in an Italian hot acid volcanic mudpot It is the first time that ... - Read More

Hydraulic fracturing in Michigan investigated

Gas
University of Michigan researchers today released seven technical reports that together form the most comprehensive Michigan focused resource on hydraulic fracturing the controversial natural gas and oil extraction process commonly known as fracking The studies ... - Read More

Deep-ocean carbon sinks: Basic research on dark ocean microorganisms

Ocean, Ocean
Although microbes that live in the so called dark ocean below a depth of some 600 feet where light doesn't penetrate may not absorb enough carbon to curtail global warming they do absorb considerable amounts ... - Read More
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