1. Barrett, C. J., M. L. Johnson & S. L. Hull, 2014. The mechanisms of intertidal fish coexistence: a model. PeerJ PrePrints 2: e660v1.
2. Case, T. J., 1983. Niche overlap and the assembly of island lizard communities. Oikos 41: 427–433.
3. Clarke, K. R. & R. N. Gorley, 2001. PRIMER v5: User manual/tutorial. PRIMER-E, Plymouth.
4. Clarke, K. R. & R. M. Warwlck, 1994. Changes in marine communities: an approach to statistical analysis and interpretation. Natural Environmental Research Council, Plymouth.
5. Crisp, D. J., 1964. The effects of the severe winter of 1962-1963 on marine life in Britain. The Journal of Animal Ecology 33: 165–210.