Close

Invasive species – the target for Biodiversity Day

Today Tides Canada celebrates the International Day for Biological Diversity, whose theme this year is alien invasive species — one of the greatest threats to biodiversity, and to the ecological and economic well-being of the planet.

We asked Gregg Howald, one of the world’s foremost experts on island restoration and Project Director of Island Conservation Canada, a Tides Canada project, to write about their work to prevent extinctions by removing rats and other invasive species from islands in the North Pacific, including Rat Island itself.

Gregg Howald, Project Director, Island Conservation Canada

Gregg Howald, Project Director, Island Conservation Canada

“We are losing the earth’s biodiversity at an alarming rate. Data from birds, our best studied group, show that ancient extinction rates were about 1 species in every 100 years. This is just about the rate at which new species evolve. However, recent extinction rates are about 1 species every year. Data on endangered birds predict that future rates will be about 10 species per year if we don’t act now to protect them.

Much of that biodiversity is found on islands which are hotspots for endemic species and critical habitat for marine vertebrates.

Though islands make up only about 3% of the earth’s land area, they host about 20% of all species and 50% of endangered species. Sadly, extinction rates are also exponentially greater on islands: globally, 50-90% of recorded animal extinctions have occurred on islands, with most of these extinctions caused by invasive species.

Island Conservation Canada’s mission is to prevent extinctions by removing alien invasive species from islands. We prevent extinctions by working where the concentration of both biodiversity and species extinction is greatest – islands – and by removing one of the greatest threats to the continued existence of plant and animal species there – introduced invasive vertebrates.

Once damaging invasive species are removed from islands, native species and island ecosystems can recover with little or no additional intervention, making islands an exceptional conservation opportunity.

To date, Island Conservation has restored 32 islands, protecting 125 species and subspecies from the threat of extinction.”

Support Island Conservation Canada by donating to their project at Tides Canada. Visit their website to follow their progress around the globe.

Island Conservation is currently working with Tides Canada to restore islands in the Scott Islands (Northern Vancouver Island) with Parks Canada, and in Haida Gwaii, also known as the Queen Charlottle Islands. The objective of these projects is to remove the threats of introduced predators to seabird breeding, and restore habitat for recolonization, or enhance the breeding of seabirds.

Learn more about the work of Island Conservation on Rat Island in this National Geographic article.

Comments are closed.

Interview with Tara Marsden, Gitanyow Hereditary Chiefs Office

Gitanyow is a community nestled along the Kitwanga River in Northwestern BC. They are represented by the Gitanyow Hereditary Chiefs to establish modern treaties and implement First Nations conservation practices and land use planning for their territory. We interviewed Wilp Sustainability Director for the Gitanyow Hereditary Chiefs Tara Marsden and learned more about the Gitanyow model of long-term conservation planning, the significance of observing and adopting First Nations values and methods in conservation, and the importance of flexible, multi-year granting.

Community stories share local food successes in northern Manitoba

928 kilometres north of Winnipeg, Manitoba lies Barren Lands First Nation and Brochet. Facing high food costs, the community of just over 600 people expanded on an already existing interest in gardening by building a 14 x 20-foot greenhouse in 2013 in coordination with their local health centre and the Northern Manitoba Food, Culture, and Community Collaborative (NMFCCC). This is only one of many inspiring examples from the NMFCCC 2016 Community Stories booklet, which shares learnings from 18 communities.