Water Stewardship Information Sources

Citation Hocking, MD and Reynolds, JD. 2011. Impacts of salmon on riparian plant diversity. Science 331:1609-1612.
Organization SFU
URL http://johnreynolds.org/wp-content/uploads/2012/07/hocking-and-reynolds-2011-science.pdf
Abstract/Description or Keywords The study of natural gradients in nutrient subsidies between ecosystems allows for predictions
of how changes in one system can affect biodiversity in another. We performed a large-scale
empirical test of the role of Pacific salmon (Oncorhynchus spp.) in structuring riparian plant
communities. A comparison of 50 watersheds in the remote Great Bear Rainforest of British
Columbia’s central coast in Canada shows that salmon influence nutrient loading to plants,
shifting plant communities toward nutrient-rich species, which in turn decreases plant diversity.
These effects are mediated by interactions between salmon density and the physical characteristics
of watersheds. Predicting how salmon affect terrestrial ecosystems is central to conservation
plans that aim to better integrate ecosystem values into resource management.
Information Type Article
Regional Watershed Central Coast
Sub-watershed if known
Aquifer #
Project status complete
Contact Name John Reynolds
Contact Email [email protected]