An ecological invasion mimics a drunken walk

A theory that uses the mathematics of a drunken walk describes ecological invasions better than waves, according to Tim Reluga, associate professor of mathematics and biology, Penn State.

Climate change and farming: let's be part of the solution!

What with rising rainfall in the west, and hotter, drier summers in the east, British farmers place plenty of challenges from global warming, writes Anna Bowen. But there are also positive opportunities for agricultural innovators to adapt their farming systems to changing conditions, make their operations more resilient and sustainable, and make themselves part of the solution.

Rocky mountain haze

Many people head to the mountains in the summer to get above the haze of the cities and valleys. A new study finds that the haze could be catching up.

Great Barrier Reef almost drowned

A unique analysis of the famous reef during rapid sea-level rise at the beginning of the Last Interglacial found it almost died. The PhD research shows the reef is resilient but questions remain about cumulative impacts.

Climate change could trigger strong sea level rise

About 15,000 years ago, the ocean around Antarctica has seen an abrupt sea level rise of several meters. It could happen again. An international team of scientists with the participation of the University of Bonn is now reporting its findings in the magazine Nature Scientific Reports.

China Announces End to Ivory Trade in 2017

In an announcement that could prove to be extremely good news for elephants in the wild, the Chinese government has promised to end its domestic ivory market by the end of this year.

Every year, thousands of elephants are killed for their tusks by poachers. Between 2011 and 2014, more than 100,000 elephants were slaughtered. The African elephant population dropped 30 percent from 2007 to 2014. More elephants are being killed than are being born.

Traffic noise reduces birds' response to alarm calls

Pollution can take many forms--including noise. Excess noise in the environment from sources such as traffic can have negative effects on animals that rely on sound to communicate and get information about their surroundings. A new study from The Condor: Ornithological Applications shows that traffic noise makes birds less responsive to alarm calls that would otherwise alert them to dangers such as predators.

What Satellites Can Tell Us About How Animals Will Fare in a Changing Climate

From the Arctic to the Mojave Desert, terrestrial and marine habitats are rapidly changing. These changes impact animals that are adapted to specific ecological niches, sometimes displacing them or reducing their numbers. From their privileged vantage point, satellites are particularly well-suited to observe habitat transformation and help scientists forecast impacts on the distribution, abundance and migration of animals.

Could Rudolph and friends help to slow down our warming climate?

Reindeer may be best known for pulling Santa’s sleigh, but a new study suggests they may have a part to play in slowing down climate change too.

A team of researchers, writing in the journal Environmental Research Letters, found that when reindeer reduce the height and abundance of shrubs on the Arctic tundra through grazing, the level of surface albedo – the amount of solar energy (shortwave radiation) reflected by the Earth back into space – is increased.

High-Severity Wildfires Complicate Natural Regeneration for California Conifers

A study spanning 10 national forests and 14 burned areas in California found that conifer seedlings were found in less than 60 percent of the study areas five to seven years after fire. Of the nearly 1,500 plots surveyed, 43 percent showed no natural conifer regeneration at all.