Biogeosciences

How certain plants survive mass extinction events: study

Conor Purcell October 11, 2017

How do plants survive mass extinctions? . Credit: Marta Galvagno (distributed via imaggeo.egu.eu).

We often read about Earth’s mass extinction events and how they wiped out vast numbers of animal species, leaving survivors to evolve and repopulate the planet. But it’s rarer to hear about how plants managed these catastrophes. A new study published last month by a team at University College Dublin, Ireland, in the journal Nature Plants shows how plants with thicker, heavier leaves we ...[Read More]

Imaggeo on Mondays: The unique bogs of Patagonia

Klaus-Holger Knorr October 9, 2017

Oceanic ombrotrophic peatland at the Seno Skyring Fjord, Patagonia, Chile . Credit: Klaus-Holger Knorr (distributed via imaggeo.egu.eu).

Patagonia, the region in southernmost tip of South America, is as diverse as it is vast. Divided by the Andes, the arid steppes, grasslands and deserts of Argentina give way to the temperate rainforests, fjords and glaciers of Chile. Also on the Chilean side are rolling hills and valleys of marshy topography: Patagonia’s bogs. Today, Klaus-Holger Knorr, a researcher at the University of Münster’s ...[Read More]

Imaggeo on Mondays: Measuring the wind direction

Laura Roberts-Artal October 2, 2017

Measuring the wind direction. Credit: Andrew Moss (distributed via imaggeo.egu.eu).

Remote, rugged, raw and beautiful beyond measure, the island of South Georgia rises from the wild waters of the South Atlantic, 1300 km south east of the Falkland Islands. The Allardyce Range rises imposingly, south of Cumberland Bay, dominating the central part of the island. At its highest, it towers 2935 m (Mount Paget) above the surrounding landscape. In the region of 150 glaciers carve their ...[Read More]

Record-setting forest fires in 2017 – what is to blame?

Robert Emberson September 28, 2017

Styggkärret reserve burning fire . Credit: Ylvers , distributed via Pixabay .

Forest fires have once again seized the public consciousness in both Europe and North America. Extreme drought and temperatures contributed to a tinderbox in many forests, and have led to deadly fires across Europe and record-breaking, highly disruptive fires in the USA and Canada, from where I’m currently writing. A simple way to understand fire is by thinking about the fire triangle – the three ...[Read More]