Ecosystems

North America's freshwater lakes are getting saltier
April 10, 2017 03:57 PM - Cary Institute of Ecosystem Studies

North America's freshwater lakes are getting saltier due to development and exposure to road salt. A study of 371 lakes published today in the Proceedings of the National Academy of Sciences reports that many Midwestern and Northeastern lakes are experiencing increasing chloride trends, with some 44% of lakes sampled in these regions undergoing long-term salinization.

Turtles Die in Southern California Lake Following Drought and Fire
April 10, 2017 01:57 PM - USGS

Almost all of the turtles living in a southern California lake died following a large fire and years of drought, according to a new U.S. Geological Survey report published in the journal Knowledge and Management of Aquatic Ecosystems.

Catastrophic 'anti-infestation' logging threatens US National Forests
April 10, 2017 01:50 PM - Brett Haverstick, The Ecologist

A fresh wave of logging is hitting America's national forests, writes Brett Haverstick. But this time it's all for the sake of 'forest health' and 'fire prevention'. It might look like industrial clear-cutting to you and me, but really, it's in a good cause. And if the forests and precious ecosystems they harbor just happen to perish in the process ... well ain't that just too bad?

Catastrophic 'anti-infestation' logging threatens US National Forests
April 10, 2017 01:50 PM - Brett Haverstick, The Ecologist

A fresh wave of logging is hitting America's national forests, writes Brett Haverstick. But this time it's all for the sake of 'forest health' and 'fire prevention'. It might look like industrial clear-cutting to you and me, but really, it's in a good cause. And if the forests and precious ecosystems they harbor just happen to perish in the process ... well ain't that just too bad?

Hybridization between Native and Invasive Trout is Increasing in the West
April 6, 2017 08:25 AM - United States Geological Survey (USGS)

Hybridization, or the interbreeding of species, is increasing between native and invasive trout across the northern Rocky Mountains, according to a study released Tuesday by the U.S. Geological Survey and partners.

Melting sea ice may lead to more life in the sea
March 30, 2017 05:26 PM - Birgitte Svennevig via University of Southern Denmark

When spring arrives in the Arctic, both snow and sea ice melt, forming melt ponds on the surface of the sea ice. Every year, as global warming increases, there are more and larger melt ponds.

Melting sea ice may lead to more life in the sea
March 30, 2017 05:26 PM - Birgitte Svennevig via University of Southern Denmark

When spring arrives in the Arctic, both snow and sea ice melt, forming melt ponds on the surface of the sea ice. Every year, as global warming increases, there are more and larger melt ponds.

Emissions from the edge of the forest
March 30, 2017 04:08 PM - Helmholtz Centre For Environmental Research - UFZ

When talk is of important ecosystems, tropical forests are top of the list. After all, half of the carbon stored in all of the Earth's vegetation is contained in these ecosystems. Deforestation has a correspondingly fatal effect. Scientists estimate that this releases 1000 million tonnes of carbon every year, which, in the form of greenhouse gasses, drives up global temperatures. That is not all, however, reveals a new study by the Helmholtz Centre for Environmental Research (UFZ) and the University of Maryland. A team of scientists has discovered that fragmentation of formerly contiguous areas of forest leads to carbon emissions rising by another third. Researchers emphasise in the scientific journal Nature Communications that this previously neglected effect should be taken into account in future IPCC (Intergovernmental Panel on Climate Change) reports.

Emissions from the edge of the forest
March 30, 2017 04:08 PM - Helmholtz Centre For Environmental Research - UFZ

When talk is of important ecosystems, tropical forests are top of the list. After all, half of the carbon stored in all of the Earth's vegetation is contained in these ecosystems. Deforestation has a correspondingly fatal effect. Scientists estimate that this releases 1000 million tonnes of carbon every year, which, in the form of greenhouse gasses, drives up global temperatures. That is not all, however, reveals a new study by the Helmholtz Centre for Environmental Research (UFZ) and the University of Maryland. A team of scientists has discovered that fragmentation of formerly contiguous areas of forest leads to carbon emissions rising by another third. Researchers emphasise in the scientific journal Nature Communications that this previously neglected effect should be taken into account in future IPCC (Intergovernmental Panel on Climate Change) reports.

USGS and Partners Team Up to Track Down Nonnative and Invasive Fishes in South Florida
March 30, 2017 08:22 AM - United States Geological Survey (USGS)

U.S. Geological Survey scientists teamed up with government, nonprofit, and university partners in South Florida's Big Cypress National Preserve to hold a scientific scavenger hunt for nonnative and invasive freshwater fish species.

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