Data from: Sudden collapse of a mesopredator reveals its complementary role in mediating rocky reef regime shifts

Jenn M. Burt, Tim M. Tinker, Daniel K. Okamoto, Kyle W. Demes, Keith Holmes & Anne K. Salomon
While changes in the abundance of keystone predators can have cascading effects resulting in regime shifts, the role of mesopredators in these processes remains underexplored. We conducted annual surveys of rocky reef communities that varied in the recovery of a keystone predator (sea otters Enhydra lutris) and the mass mortality of a mesopredator (sunflower sea star Pycnopodia helianthoides) due to an infectious wasting disease. By fitting a population model to empirical data, we show that...
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