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Thursday, November 15, 2018
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Alberta’s natural ecosystems shrinking faster than Amazon rain forest: report

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EDMONTON, A.B. – Alberta’s ecosystems and the natural beauty they create are still largely intact but parts are disappearing at rates that exceed deforestation in the Amazon rainforest.

“We continue to lose ecosystems,” said researcher Jahan Kariyeva. “That we can definitely see.”

Kariyeva, a University of Alberta geographer, is the lead author on the latest report from the Alberta Biodiversity Monitoring Institute, an arms-length research body overseen by industry, government and non-governmental organizations.

Its most complete study on the human footprint across Alberta has found that 70 percent of the province is still untouched. Most of that is in the north.

At the turn of the century, just over one-quarter of Alberta was disturbed by agriculture, communities, forestry, energy and other developments. Now, the total is almost 30 percent.

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That’s an area equal to 3 1/2 times the size of Banff National Park. Most of that disturbance comes from logging.

Changes are coming most quickly in the foothills, a vast area along the eastern slopes of the Rocky Mountains subject to pressures from forestry, energy, residential development and recreation.

The study says disturbance in the foothills has gone from less than one-fifth in 1999 to 29 percent in 2015, most from forestry. That’s about a 60 percent increase in disturbance _ almost twice the rate in the Amazon over the same time span.

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In Alberta’s oilsands, developed land has increased by 75 percent. The report points out that’s still only 8.4 percent of the entire forest ecosystem in the area.

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Kariyeva said the study should help politicians and land-use planners make better decisions.

“We need to understand the human footprint dynamic and the trends, so we can reduce the effect of human activity.”

The first casualty of spreading development is often biodiversity, said Kariyeva.

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“More human footprint, less biodiversity.”

Her results correspond with previous research.

A 2014 study concluded that Alberta had the most forest disturbance of any large province in Canada. Global Forest Watch also found the highest rates of new disturbance in the foothills and the oilsands region.

The rate of new development in the foothills is concerning, said Simon Dyer of the clean-energy think-tank Pembina Institute, who also sits on the board of the biodiversity monitoring agency.

“What you’re seeing is a very significant rate of change in the foothills,” said Dyer, who pointed out that less than two percent of that region is in a conservation area.

An Alberta government spokesperson was not available to comment.

Dyer said having so much untouched land left in the province means conservation still has a chance.

“We have a lot of relatively untouched ecosystems here,” said Dyer. “And we have substantive land-use change taking place.”

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