In 2017 conservation scientist Aerin Jacob was invited to join an expert team charged with advising the Canadian government on ways to meet its conservation targets. The team was asked to identify areas that provide important ecosystem services — such as landscape-based carbon storage, flood prevention, fresh water and food resources and outdoor recreation — so they could be taken into account when deciding where to put new protected areas.
But there was just one problem: that information didn’t exist.
“We were astonished to find that Canada has no maps of ecosystem services at national levels,” says Jacob, who works with the Yellowstone to Yukon Initiative in Canmore, Alta. “As scientists who care about environmental decisions, we don’t think the government should be guessing.”
So Jacob and several other members of the expert team decided to create those maps themselves. They chose to focus on three ecosystem services in particular: carbon storage for climate regulation, fresh water and nature-based recreation — selected because they are some of the key benefits that people get from nature, but also because there is robust, national, publicly available data available for those services.
“There are so many benefits people get from nature, but some are relatively easier to map than others,” Jacob says. “You can get global-scale information about carbon, you can’t get national-scale information about pollination.”
The scientists mapped carbon storage using data on forests and soil across the country, and water with hydrological databases. Recreation was mapped using data from existing surveys that have identified the kinds of places people like to visit — areas featuring forests, mountains and, especially, water.
The team also took the map one step further. They didn’t just identify areas where nature has the capacity to provide these services, but looked for the places where the demand for and ability to access these services by people was highest and where nature was able to meet that demand.
They also highlighted the places that store the most carbon, the watersheds that provide the most water to the largest number of people, and wild natural places that the most people can access and enjoy for recreation.
The resulting maps, published Tuesday in the journal Environmental Research Letters, have several striking features.
- Only about one-third of places with the capacity to produce a benefit overlap with places that actually provide people with benefits, and the overlap between multiple ecosystem services is even smaller.
- Hotspots that include all three services (carbon storage, fresh water, recreation) cover just 56,000 square kilometres, or 0.6 per cent, of Canada’s land surface area.
- Between one-half and two-thirds of the hotspots overlap with current and planned resource extraction activities.
- Existing parks aren’t great at protecting the places where people actually get benefits from nature: they cover about 15 per cent of the places with the greatest potential to provide ecosystem services, but just 11 per cent of the ones that provide the most benefits to people.
“Our existing protected area network focuses more on capacity, and doesn’t capture as well the places that are actually providing benefits,” says Matthew Mitchell, a research associate studying ecosystem services at the University of British Columbia who led the work on the map project.
“With water, for example, you can have a lot of it but if there is no one downstream then they’re not getting that benefit.”
People always tell us they love our newsletter. Find out yourself with a weekly dose of our ad‑free, independent journalism
Similarly, for a natural area to be useful for recreation it needs to be reasonably close to where people live, and accessible by road. “Places with greater demand, and access, might be more important to protect than others,” says Mitchell.
This new mapping project could help shift that balance, says Tim Patterson, a member of the Nłeʔkepmxc Nation and a hiking guide in Calgary who was involved in the creation of Castle Provincial Park in southwestern Alberta.
“The thing that frustrates planning for both natural resources and conservation is fragmented information,” he says. “There are lots of people doing good work, but they’re from diverse fields, and we don’t always have all of the information that is out there.”
Canada committed to protecting 17 per cent of the country’s land and fresh water by the end of 2020 — a target that has expanded to 25 per cent by 2025 and 30 per cent by 2030.
The latest figures show that as of December 2019, just over 12 per cent had been protected (the COVID-19 pandemic has delayed the publication of updated numbers). But Grant Hogg, executive director of conservation partnerships at Environment and Climate Change Canada, told The Narwhal in November the government was on track to meet the 17 per cent goal by the end of 2020.
There are around 80 different types of protected areas that can contribute to those targets, ranging from a national park to a sustainably managed ranch. Choosing a type depends on factors such as the conservation objective, the social, economic and cultural interests of the area, the cost and the desire of local communities, Hogg says. They are selected based on criteria like size, connectivity and ecological integrity, as well as their ability to protect ecosystem services and preserve biodiversity. Better information about where the most important ecosystem services are can help conservation managers choose the best places to protect.
“All of us interested in protected and conservation areas want to ensure that they provide measurable benefits,” Hogg says. “This kind of map could help in that conversation.”
Having a good understanding of the ecosystem services provided by a protected area can also help generate funding to support its long-term management, Hogg says. Darkwoods conservation area and the Great Bear Rainforest in British Columbia generate income from their carbon stores on the carbon market, he says.
Hotspots for protection include eastern slopes of Rocky Mountains, north shore of Lake Superior and Hudson Bay lowlands
The map has identified several areas that are important hotspots for ecosystem services that are not currently protected. The eastern slopes of the Rocky Mountains in Alberta, for example, are one of the most important places in the entire country for fresh water, providing water to people across the Prairies from Alberta to Manitoba, while also being a major hotspot for nature-based recreation. The Alberta government recently rescinded a decades-old policy that opened up more than one million hectares of the eastern slopes to mountaintop-removal mining for coal.
Alison Woodley, senior strategic advisor at the Canadian Parks and Wilderness Society, says efforts to protect the headwaters of the North Saskatchewan River in that area, including the longstanding campaign to have the Bighorn Country region designated as a wildland provincial park, could get a boost from having access to solid information about the benefits the area provides.
“If we’re going to achieve the goal of conserving biodiversity and the benefits it supplies to people, then we need to guide our planning for those areas through science and Indigenous knowledge,” she says.
Other important hotspots identified include the north shore of Lake Superior for fresh water and recreation, an area that Jacob says is not currently on anyone’s radar for conservation in Canada or internationally, and the massive carbon storage hotspot of the Hudson Bay lowlands, which outstrips all other carbon sinks in Canada and is at risk from road building and proposed mining projects. A group of Indigenous Peoples is working to protect an undeveloped part of this area in northern Manitoba by preserving the Seal River watershed as an Indigenous Protected Area.
Jacob says while the map highlights how many ecosystem services hotspots overlap with planned or existing resource development, she stresses that many human activities may be compatible with greater protections.
“Natural resources extraction is not incompatible, but this map should give us pause about how and where we do it,” she says. “Especially in the hotspots we want to tread very carefully.”
And since you’re here, we have a favour to ask. Our independent, ad-free journalism is made possible because the people who value our work also support it (did we mention our stories are free for all to read, not just those who can afford to pay?).
As a non-profit, reader-funded news organization, our goal isn’t to sell advertising or to please corporate bigwigs — it’s to bring evidence-based news and analysis to the surface for all Canadians. And at a time when most news organizations have been laying off reporters, we’ve hired eight journalists over the past year.
Not only are we filling a void in environment coverage, but we’re also telling stories differently — by centring Indigenous voices, by building community and by doing it all as a people-powered, non-profit outlet supported by more than 2,900 members.
The truth is we wouldn’t be here without you. Every single one of you who reads and shares our articles is a crucial part of building a new model for Canadian journalism that puts people before profit.
We know that these days the world’s problems can feel a *touch* overwhelming. It’s easy to feel like what we do doesn’t make any difference, but becoming a member of The Narwhal is one small way you truly can make a difference.
We’ve drafted a plan to make 2021 our biggest year yet, but we need your support to make it all happen.
If you believe news organizations should report to their readers, not advertisers or shareholders, please become a monthly member of The Narwhal today for any amount you can afford.