Sharon Writes

November 12, 2009

Boreal forests ignored in climate change fight

Filed under: CBC.CA, Magazines and newspapers, Online media — Sharon @ 12:43 pm

 

Carbon-rich wetlands in the Northwest Territories.  (Chad Delany, Ducks Unlimited)

Carbon-rich wetlands in the Northwest Territories. (Chad Delany, Ducks Unlimited)

CBC.CA

November 11, 2009

by Sharon Oosthoek

Boreal forests store more than double the carbon originally thought, yet policy-makers overlook their role in fighting climate change, says a report released Thursday by an international conservation group.

“For reasons that are unclear, boreal forests seem to be the carbon the world forgot,” write the authors of a report published by the Seattle-based International Boreal Conservation Campaign (IBCC).

When climate change negotiators consider forests’ carbon storage potential, they usually look at tropical forests because they are being logged at a faster rate than the northern boreal, said ecologist and report co-author Jeff Wells.

But soil in boreal forests — like those found in Canada’s north — is much deeper than in tropical forests and hence stores much more carbon, said Wells, a visiting fellow at Cornell University.

Yet scientists have only recently taken into account the boreal’s deeper soils and slower rate of decay of leaf litter, which also stores carbon.

Full article

November 10, 2009

Unwelcome visitors

Filed under: Magazines and newspapers, ON Nature — Sharon @ 5:52 pm

ON Nature, Winter 2009/2010

by Sharon Oosthoek

Round gobies were first discovered in the St. Clair River in 1990, likely arriving through ballast water from ocean-going ships.

Round gobies were first discovered in the St. Clair River in 1990, likely arriving through ballast water from ocean-going ships.

Fisheries biologists have unexpectedly discovered round gobies in the Thames, Sydenham, Ausable and Grand rivers and are now sounding the alarm over how this invasive fish may affect endangered species.

The Great Lakes tributaries were long thought to be immune to such an invasion thanks to their status as Canada’s most diverse aquatic ecosystem. It was thought that since each ecological niche was taken up, invaders could not gain a foothold.

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