{"refrec":{"BRefID":234474,"RR":"<b>Reynolds, A.M.</b> (2014). Mussels realize Weierstrassian Lévy walks as composite correlated random walks. <i>NPG Scientific Reports 4(4409)</i>: 5 pp. <a href=\"http://dx.doi.org/10.1038/srep04409\" target=\"_blank\">http://dx.doi.org/10.1038/srep04409</a>","BEntID":226158,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 4(4409)</i>: 5 pp. <a href=\"http://dx.doi.org/10.1038/srep04409\" target=\"_blank\">http://dx.doi.org/10.1038/srep04409</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Reynolds, A.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Reynolds, A.M.","Englishabstract":"Composite correlated random walks (CCRW) have been posited as a potential replacement for Lévy walks and it has also been suggested that CCRWs have been mistaken for Lévy walks. Here I test an alternative, emerging hypothesis: namely that some organisms approximate Lévy walks as an innate CCRW. It is shown that the tri-modal CCRW found to describe accurately the movement patterns of mussels (Mytilus edulis) during spatial pattern formation in mussel beds can be regarded as being the first three levels in a hierarchy of nested movement patterns which if extended indefinitely would correspond to a Lévy walk whose characteristic (power-law) exponent is tuned to nearly minimize the time required to form patterned beds. The mussels realise this Lévy walk to good approximation across a biologically meaningful range of scales. This demonstrates that the CCRW not only describes mussel movement patterns, it explains them. 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