1. Saltmarsh Ecology;Adam,1990
2. Saltmarsh Management Manual;Adnitt,2007
3. Survey of Redshank and Other Breeding Birds on Saltmarshes in Britain, 1985;Allport,1986
4. PERMANOVA, a FORTRAN computer program for Permutation Multifactor Analysis of Variance;Anderson,2005
5. Multivariate dispersion as a measure of beta diversity;Anderson;Ecol. Lett.,2006