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Buckland ST, Magurran AE, Green RE, Fewster RM.Buckland ST, et al.Philos Trans R Soc Lond B Biol Sci. 2005 Feb 28;360(1454):243-54. doi: 10.1098/rstb.2004.1589.Philos Trans R Soc Lond B Biol Sci. 2005.PMID: 15814343Free PMC article.