Salmon are an icon of coastal BC and considered a foundation species. A ‘foundation’ species is different from the more familiar term keystone species. A keystone species has an influence on its environment that is disproportionate to its abundance. Like the keystone in a masonry arch, its removal can have a strong effect on the surrounding community. In the Pacific northwest, species like sea stars, sea otters, and wolves are considered keystone species.
A foundation species, on the other hand, is important because of the role it plays due to its sheer biomass in the ecosystem, and the strong influence this has on structuring a community. Foundation species support ecosystem structure, process and organisms from the bottom up. Foundation species can be plants or animals with many species relying on them, but not disproportionately to their abundance, it’s because of their abundance. On the Pacific Northwest coast, the collective group of salmon species (chum, pink, etc), herring, and giant kelp would be examples of foundation species.
Join us on this week’s Coastal Insights as we take a look at the pivotal role salmon play in our world while considering the challenges to the long-term resilience of salmon populations.
Become a Raincoaster
Giving to Raincoast enables you to protect what you love most.
For 25 years, Raincoast has been furthering biodiversity conservation in BC. Thanks to your generous donations, among many other accomplishments, we have been able to end commercial trophy hunting of large carnivores in over 38,000 square kilometers of the Great Bear Rainforest, begin acquiring forest land in order to protect threatened Coastal Douglas-fir ecosystems, aid recovery of endangered Southern Resident killer whales by restoring Chinook salmon habitat, and establish a university research lab dedicated to applied conservation science. Strong partnerships are integral to our success.
Our efforts need to be maintained and advanced, now more than ever. As the biodiversity and climate crises collide, your support allows us to continue to make tangible conservation gains.
Biodiversity protection is the most important gift we can give the next generation. Join us as a Raincoaster today!