{"datasetrec":{"DasID":1723,"Acronym":null,"StandardTitle":"Numer of bird days per month in the Beneden Zeeschelde from October '82 till December '97","OrigTitle":"Aantal vogeldagen per maand in de Beneden Zeeschelde van oktober '82 tot december '97","OrigTitleLangID":41,"OrigTitleLangCode":"nl","OrigTitleLang":"Dutch","OrigTitleLangNL":"Nederlands","VersionName":"1.0","ContactEmail":null,"VersionDate":null,"VersionDay":3,"VersionMonth":10,"VersionYear":2008,"SizeReference":null,"EngAbstract":null,"EngDescr":null,"OrigAbstract":"Het aantal vogeldagen tussen twee opeenvolgende tellingen is berekend als (n1+n2)(d2-d1)/2.  Hierbij is (n1+n2) de som van het aantal vogels voor de twee tellingen en (d2-d1) het aantal dagen tussen de twee tellingen.  Kwantitatief komt het aantal vogeldagen overeen met de oppervlakte onder de curve in een lijngrafiek van het aantal vogeld t.o.v de tijd.  Deze oppervlakte werd per maand berekend.","OrigDescr":null,"Comments":null,"ReleaseDate":null,"ReleaseDate0":null,"OrigDescrLang":"Dutch","EmbargoDate":null,"OrigDescrLangNL":"Nederlands","OrigLangCode":"nl","OrigLangCodeExtended":"dut","OrigLangID":41,"DescrCompFlag":0,"DescrTransFlag":0,"Citation":null,"AccessConstraints":null,"UDate":"2008-10-03","CDate":"2008-10-03","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2026-05-14 01:44:00.153333","timezone_type":1,"timezone":"+02:00"},"CheckedFlag":0,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":0,"FreshFlag":1,"BrackishFlag":1,"TerrestrialFlag":0,"StatusID":1,"DasType":"Static graphs","DasTypeID":18,"DasOrigin":null,"Progress":null,"AccessConstraint":null,"AccConstrEN":null,"AccConstrDisplay":null,"License":null,"AccConstrDescription":null,"Lineage":null,"AccConID":null},"dois":null,"spcols":[{"SpColID":27,"SpName":"ScheldeMonitor"}],"keywords":null,"parents":null,"children":null,"othrel":null,"othrelrev":null,"ownerships":null,"taxterms":null,"frameworks":null,"otherterms":null,"temporal":[{"DasDateID":1649,"StartYear":1982,"EndYear":1997,"StartDay":null,"EndDay":null,"StartDate":"1982-10-01","EndDate":"1997-12-01","DasDate":null,"Resolution":null,"ResolutionNL":null,"Notes":null,"StartMonth0":10,"StartMonth":"October","StartMonthNL":"Oktober","EndMonth0":12,"EndMonth":"December","EndMonthNL":"December","Progress":null,"ProgressNL":null}],"geographical":[{"GeoTerm":"Lower Sea Scheldt","DasGeoID":3951,"DasGeoTerm":null,"DasID":1723,"GeotID":7016,"X":null,"Y":null,"MaxX":null,"MaxY":null,"StationName":null,"Precision":null,"CoordSystID":null,"GeoDatumID":null,"OrigCoordMinX":null,"OrigCoordMinY":null,"OrigCoordMaxX":null,"OrigCoordMaxY":null,"OrderNr":null,"Projection":null,"GeoDatum":null,"GeoObjectID":7134,"OrigGeoTerm":"Lower Sea Scheldt","DutchTerm":"Beneden Zeeschelde"}],"meastypes":[{"MethID":null,"DasMeasTypID":6648,"DasMeasType":null,"Matrix":"Atmosphere/Air","MatrixNL":"Atmosfeer/Lucht","Parameter":"Count of bird days","ParameterNL":"Aantal vogeldagen","Description":null,"Unit":null,"Methodology":null,"Protocol":null,"QualityControl":null,"Precision":null,"Detectionlimit":null,"Instrument":null,"InstrumentUrl":null,"MethFull":"","ParaCategoryTitle":null,"ParaCatCode":null}],"dasthemes":[{"DasThemeID":69,"DasTheme":"Biology > Birds","DasTheme0":"Birds","DutchTerm":"Vogels"}],"projects":null,"refs":[{"0":10418,"BRefID":10418,"1":"Describing this dataset","Relation":"Describing this dataset","2":3,"RelationID":3,"3":"<b>Van den Bergh, E. <i>et al.</i></b> (1998). Watervogels in de internationaal beschermde gebieden van de beneden Zeeschelde: trends van 1980 tot 1997. <i>Rapport Instituut voor Natuurbehoud</i>, 98.18. Instituut voor Natuurbehoud: Brussel. 162 pp.","RR":"<b>Van den Bergh, E. <i>et al.</i></b> (1998). Watervogels in de internationaal beschermde gebieden van de beneden Zeeschelde: trends van 1980 tot 1997. <i>Rapport Instituut voor Natuurbehoud</i>, 98.18. Instituut voor Natuurbehoud: Brussel. 162 pp.","4":"Watervogels in de internationaal beschermde gebieden van de beneden Zeeschelde: trends van 1980 tot 1997","StT":"Watervogels in de internationaal beschermde gebieden van de beneden Zeeschelde: trends van 1980 tot 1997","5":"Van den Bergh, E.; Ysebaert, T.J.; Meire, P.; Kuijken, E.","RSA":"Van den Bergh, E.; Ysebaert, T.J.; Meire, P.; Kuijken, E.","6":"Beschrijft deze dataset","DutchTerm":"Beschrijft deze dataset","7":null,"AnaDate":null,"8":1998,"MonDate":1998,"9":". <i>Rapport Instituut van het Instituut voor Natuurbehoud</i>, 98.18. Instituut voor Natuurbehoud: Brussel.  162 pp.","":". <i>Rapport Instituut van het Instituut voor Natuurbehoud</i>, 98.18. Instituut voor Natuurbehoud: Brussel.  162 pp.","10":null,"doi":null}],"urls":null,"pictures":null,"urlmaps":null,"spatreps":null,"fileformats":null,"resmessage":"","complete":1}