Blue crab Callinectes sapidus and soft-shell clam Mya arenaria index of abundance time series 1958-1992

This time series was used in a Lotka-Volterra predator-prey model to predict prey densities and predation rates in a natural environment. Agreement between model predictions and field data in this crab-clam predator-prey system indicates that relatively simple models can be used to predict phase shifts and identify alternative stable states. The approach described here can be adapted to a variety of predator-prey systems to predict the impact of phase shifts on ecological communities. The code for all modeling is also included in this data package. Please cite the following manuscript: Glaspie, C. N., R. D. Seitz, and R. N. Lipcius. Empirical test of crab-clam predator-prey model predictions: storm-driven phase shift to a low-density stable state. Submitted to Proceedings of the National Academy of Sciences. Manuscript archived at https://doi.org/10.1101/224097.