{"refrec":{"BRefID":288790,"RR":"<b>Zhang, J.</b> (2012). A high-performance web-based information system for publishing large-scale species range maps in support of biodiversity studies. <i>Ecological Informatics 8</i>: 68-77. <a href=\"https://dx.doi.org/10.1016/j.ecoinf.2012.01.004\" target=\"_blank\">https://dx.doi.org/10.1016/j.ecoinf.2012.01.004</a>","BEntID":280826,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Ecological Informatics 8</i>: 68-77. <a href=\"https://dx.doi.org/10.1016/j.ecoinf.2012.01.004\" target=\"_blank\">https://dx.doi.org/10.1016/j.ecoinf.2012.01.004</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Zhang, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Zhang, J.","Englishabstract":"Functionality, performance and scalability are critical to Web-based information systems for publishing and disseminating large-scale species distribution data. Existing systems do not support dynamic spatial window queries on large-scale species range maps that are important to compute alpha and beta diversities for biodiversity analysis and modeling. In this study, we have developed a main-memory based novel quadtree data structure to represent large-scale species range maps and support dynamic spatial window queries to retrieve a list of species and their area sizes within a query window efficiently. Using the NatureServe's 4000 + bird species range maps, experiment results have shown that the memory footprint of the proposed quadtree data structure representing the range maps of all the species is about 1/6 of the quadtree derived by combining individual quadtrees each representing a species range map. The experiment results have also demonstrated that the query response times of our main-memory spatial database are well below a fraction of a second for query windows as large as 10 × 10°, which are 2–3 orders better than using a typical disk-resident spatial database system.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"A high-performance web-based information system for publishing large-scale species range maps in support of biodiversity studies","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:01.897972","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"High-performance, Species range map, Quadtree, Web-based, Spatial databases, GIS","OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2017-08-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000302049900009","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.ecoinf.2012.01.004"},"refs":null,"anarec":{"AnaID":288790,"PubliDate":2012,"Pagination":"68-77","XtraPublOfAnaID":null,"ISBN":null,"Volume":"8","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":195051,"SerRR":"Ecological Informatics. 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