A new study from the University of Washington suggests that rocky shores in the Pacific Northwest are less resilient to climate change than previously thought. The study, published in the journal Nature Climate Change, found that these shores are experiencing a combination of stressors, including rising sea levels, ocean acidification, and warming temperatures, which are making it difficult for them to recover from disturbances.
"Rocky shores are important ecosystems that provide a home for a variety of marine life," said lead author Dr. Emily Carrington. "They are also important for human recreation and tourism. Our study shows that these shores are at risk from climate change, and we need to take action to protect them."
The study looked at 12 rocky shore sites in the Pacific Northwest, from Oregon to Alaska. The researchers measured a variety of factors, including the abundance of different species, the diversity of the ecosystem, and the rate of recovery from disturbances.
The researchers found that all of the sites were experiencing some degree of stress from climate change. Rising sea levels are causing the shores to erode, which is destroying habitat for marine life. Ocean acidification is making it difficult for shellfish and other marine organisms to build their shells, which can lead to death. Warming temperatures are also causing some species to move to new areas, which can disrupt the ecosystem.
The researchers also found that the shores were less resilient to climate change than expected. This means that it is taking longer for them to recover from disturbances, such as storms or oil spills. This is because the climate change stressors are making it more difficult for the shores to repair themselves.
"Our study shows that rocky shores in the Pacific Northwest are at risk from climate change," said Carrington. "We need to take action to protect these shores, such as reducing greenhouse gas emissions and creating marine protected areas."
The study was funded by the National Science Foundation, the National Oceanic and Atmospheric Administration, and the Washington Sea Grant Program.
