{"refrec":{"BRefID":292119,"RR":"<b>Hamylton, S.M.; Barnes, R.S.K.</b> (2018). The effect of sampling effort on spatial autocorrelation in macrobenthic intertidal invertebrates. <i>Hydrobiologia 811(1)</i>: 239-250. <a href=\"https://dx.doi.org/10.1007/s10750-017-3491-x\" target=\"_blank\">https://dx.doi.org/10.1007/s10750-017-3491-x</a>","BEntID":284170,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Hydrobiologia 811(1)</i>: 239-250. <a href=\"https://dx.doi.org/10.1007/s10750-017-3491-x\" target=\"_blank\">https://dx.doi.org/10.1007/s10750-017-3491-x</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hamylton, S.M.; Barnes, R.S.K.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hamylton, S.M.; Barnes, R.S.K.","Englishabstract":"The importance of sampling effort in the statistical exploration of spatial autocorrelation is demonstrated for benthic macroinvertebrate assemblages within the intertidal warm-temperate Knysna estuary, South Africa. While the role of spatial scale in determining autocorrelation patterns in ecological populations has been noted, the effects of changing sampling effort (e.g., sample size) have rarely been explored; neither have the <i>nature</i> of any changes with sample size. Invertebrate assemblages were sampled from a single grid lattice comprised of 48 sampling stations at four sample sizes (0.0015, 0.0026, 0.0054 and 0.01 m<sup>2</sup>). Four metrics were investigated: assemblage abundance, frequency (species density), and numbers of the two most abundant species in the area <i>Simplisetia erythraeensis</i> and <i>Prionospio sexoculata</i>. Spatial autocorrelation was estimated for each sample size from the global Moran’s <i>I</i>. For a range of distance classes, Moran’s <i>I</i> correlograms were constructed, these plotted autocorrelation estimates as a function of the separation distance between point samples. Spatial autocorrelation was present in three of the metrics (assemblage abundance frequency and <i>Prionospio</i> abundance), but not for <i>Simplisetia</i> abundance. The estimated magnitude of spatial autocorrelation varied across sampling units for all four assemblage and species metrics (global Moran’s <i>I</i> ranged from 0.5 to − 0.07). Correlograms indicated that optimal sampling interval distances fell in the region of 8 m for <i>Simplisetia</i> and 19 m for the remaining three metrics. These distances indicate the dimensions of the processes (both biotic and abiotic) that determine spatial patterning in the microbenthic intertidal invertebrates sampled.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The effect of sampling effort on spatial autocorrelation in macrobenthic intertidal invertebrates","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Sampling effort, Sample size, Moran’s I correlogram, Moran’s I ","OtherDescriptors":null,"Notes":null,"AnaPub":2018,"MonPub":null,"DateUpdate":"2018-03-26","DateCreate":"2018-01-22","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000427080900018","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s10750-017-3491-x"},"refs":null,"anarec":{"AnaID":292119,"PubliDate":2018,"Pagination":"239-250","XtraPublOfAnaID":null,"ISBN":null,"Volume":"811","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42943,"SerRR":"Hydrobiologia. Springer: The Hague.  ISSN 0018-8158; e-ISSN 1573-5117","StandardTitleSer":"Hydrobiologia","ISSN":"0018-8158","AbbrevSer":"Hydrobiologia","StandardTitleMon":null,"StartPage":1,"Pages":12,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Hamylton","Firstname":null,"Initials":"S.M.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":284170,"AutID":289924,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Barnes","Firstname":null,"Initials":"R.S.K.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":284170,"AutID":215286,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":null,"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Springer","City":"The Hague"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":[{"Collection":"VLIZ Acknowledged Publications","ShortName":"VLIZ ackn"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"941":{"SpName":"LifeWatch Species Information Backbone","SpColID":941,"ParSpColID":39,"TopParID":39,"ShortName":"LifeWatch Species Information Backbone","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":39,"SpColPath":"VLIZ ackn/LifeWatch Species Information Backbone"},"39":{"SpName":"VLIZ Acknowledged Publications","SpColID":39,"ParSpColID":null,"TopParID":null,"ShortName":"VLIZ ackn","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"VLIZ ackn"},"507":{"SpName":"World Register of Marine Species","SpColID":507,"ParSpColID":null,"TopParID":null,"ShortName":"WoRMS website","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"WoRMS website"},"915":{"SpName":"World Register of Marine Species (WoRMS) acknowledged","SpColID":915,"ParSpColID":941,"TopParID":39,"ShortName":"WoRMS ackn","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":39,"SpColPath":"VLIZ ackn/LifeWatch Species Information Backbone/WoRMS ackn"},"947":{"SpName":"WoRMS ackn - direct reference","SpColID":947,"ParSpColID":915,"TopParID":39,"ShortName":"WoRMS ackn - direct","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":39,"SpColPath":"VLIZ ackn/LifeWatch Species Information Backbone/WoRMS ackn/WoRMS ackn - direct"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":284170,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":284170,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.1007/s10750-017-3491-x","externalID":"10.1007/s10750-017-3491-x","URLTypeCode":"DOI","URLID":60292,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":null,"taxterms":null,"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":null,"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Bouchti, Zohra, Z.","newSesDate":{"date":"2018-01-22 08:44:39.630000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2018-03-26 09:10:54.610000","timezone_type":3,"timezone":"Europe/Brussels"}}}