Nitrite-oxidising bacteria play a major role in the Earth’s natural nitrogen cycle and man-made wastewater treatment plants. For many years, it was believed that these nitrite-oxidising bacteria use only nitrite as their main source of energy. Now, researchers at the University of Vienna have demonstrated that these specialist bacteria may also use an alternative source of energy, such as hydrogen.
Water scarcity is a major issue across the globe. According to scientists from Utrecht and McGill University, water scarcity can be reduced by the year 2050.
A new study reports that an expansion of marine protected areas is needed to protect fish species that perform key ecological functions. According to investigators from the Wildlife Conservation Society and other organizations, previous efforts at protecting fish have focused on saving the largest numbers of species, often at the expense of those species that provide key and difficult-to-replace ecological functions.
New questions about geology, oceanography and seafloor ecosystems are being raised because of research by a Mississippi State University geologist.
Wind turbines are responsible for the death of numerous bats. In a recent study, scientists determined the origin of these animals: they do not only come from local areas but many had been already on a long migratory journey. Germany therefore bears responsibility not only for the protection of native bat populations, but also for the populations from other countries.
Climate change is having a direct negative effect on the Great Lakes, including impacts to recreational value, drinking water potential, and becoming more suited to invasive species and infectious pathogens, according to a Grand Valley State University researcher.
A drug that is commonly used to treat anxiety in humans and which regularly finds its way into surface waters through wastewater effluence has been shown to reduce mortality rates in fish.
Humans are known to alter the planet. One efficient way is by adding new species to ecosystems. People accidentally (and oftentimes deliberately) transport species from place to place in airplanes, boats and cars. Humans are known, too, to even remove a species entirely from its ecosystem by overhunting or by destroying the species’ habitat. What, if any, are the consequences of such actions? How do they impact ecosystems?
As production of shale gas soars, the industry's effects on nature and wildlife remain largely unexplored, according to a study by a group of conservation biologists published in Frontiers in Ecology and the Environment on August 1.
In the United States, natural-gas production from shale rock has increased by more than 700 percent since 2007. Yet scientists still do not fully understand the industry's effects on nature and wildlife, according to a report in the journal Frontiers in Ecology and the Environment.
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