{"refrec":{"BRefID":65551,"RR":"<b>Provoost, S.</b> (2004). Het kustecosysteem, <b><i>in</i></b>: Provoost, S. <i>et al.</i> (Ed.) <i>Levende duinen: een overzicht van de biodiversiteit aan de Vlaamse kust. Mededelingen van het Instituut voor Natuurbehoud,</i> 22: pp. 10-45, ill.","BEntID":62016,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Provoost, S. <i>et al.</i> <i>Levende duinen: een overzicht van de biodiversiteit aan de Vlaamse kust. Mededelingen van het Instituut voor Natuurbehoud,</i> 22: pp. 10-45, ill.","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Provoost, S.","OrigTitleTranslFlag":1,"Authorstringtrunc":"Provoost, S.","Englishabstract":"The main contributors to the ecological specificity of the coastal ecosystem are the characteristic climate and geomorphological dynamics of the land-sea contact zone. Quantitatively however, ecological differentiation is mainly caused by soil moisture, which in turn is determined by topography and hydrology. Ecotope types are further determined by the complex of soil and vegetation development and several biotic interactions. Human impact on the coastal ecosystem is substantial. Over the past 150 years nearly half of the initial dune area has been urbanised, while the remaining sites have been subject to drastic changes.A conceptual ecosystem model is based on two major mechanisms: top down regulation and bottom up organisation. The relative contribution of these mechanisms to the ecological dynamics determines three landscape types. In the 'dynamic', 'stressed' and 'unconstrained' landscape, bottom up organisation and top down regulation are gradually of increasing and decreasing importance respectively. Additionally, we consider an anthropogenic landscape type. These landscape types are used as a framework for ecotope classification in which species and ecosystem are llnked. We describe 8 ecotope-groups: saline environment, mobile dune, wet dune slack with herbaceous vegetation, moss dune and dry dune grassland, scrub, woodland, some regression phases and anthropogenic ecotopes.Finally, nature valuation and its use in conservation are discussed. In many countries, biodiversity is most frequently used as a valuation criterion. Species descriptions in this book focus on [very] rare species in Flanders which appear significantly more at the coast compared to the rest of the area or species that are endangered in Flanders.","AbstractOtherLang":"De ecologische specificiteit van het kustecosysteem schuilt vooral in het kenmerkend klimaat en de geomorfologische dynamiek van de contactzone tussen land en zee. Maar kwantitatief wordt de ecologische diversiteit in hoofdzaak bepaald door de bodemvochtigheid, op haar beurt bepaald door het duinreliëf in combinatie met de hydrologie. Het complex van bodem- en vegetatieontwikkeling en tal van biotische interacties veroorzaken een verdere differentiatie in ecotopen. De invloed van de mens op het kustecosysteem is substantieel. Ongeveer de helft van het duinenareaal is in de voorbije 150 jaar georbaniseerd en de resterende gebieden kenden ingrijpende landschappelijke veranderingen.In een conceptueel model van het ecosysteem gaan we uit van twee elementaire mechanismen: top down regulatie en bottom up organisatie. Naar gelang hun impact op de ecologische dynamiek, onderscheiden we het 'dynamisch' [voornamelijk top down], het 'gestresseerd' [beide mechanismen van belang] en het 'ongedwongen' [voornamelijk bottom up] duinlandschap. Los hiervan beschouwen we ook een antropogeen landschapstype. Deze landschapsindeling vormt een kader voor de afbakening van ecotopen en creëert een link tussen soort en ecosysteem. We beschrijven 8 ecotoopgroepen: zilt milieu, stuivend duin, vochtige duinvallei met lage begroeiing, mosduin en droog duingrasland, opgaand struweel [met ruigten en zomen], bos, enkele regressiefasen en antropogene ecotopen.Ten slotte wordt stil gestaan bij het begrip natuurwaarde en de vertaling hiervan naar het natuurbeleid. Biodiversiteit wordt zowel in binnen- als buitenland het meest gebruikt als waarderingscriterium. Ook in dit boek wordt de soortenbespreking hierop toegespitst: aandachtssoorten ziin in vlaanderen [zeer] zeldzame soorten die beduidend meer voorkomen aan de kust dan in het binnenland of in vlaanderen bedreigde soorten.","BibLvlCode":"AMS","StandardTitle":"Het kustecosysteem","OrigTitleLangCode":"nl","OrigTitleLangCodeExtended":"dut","OrigTitleLangID":41,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2004,"MonPub":null,"DateUpdate":"2012-09-11","DateCreate":"2004-08-31","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":65551,"PubliDate":2004,"Pagination":"10-45, ill.","XtraPublOfAnaID":null,"ISBN":"90-403-0205-7","Volume":"22","Issue":null,"BRefMon":65548,"BRefMonRR":"<b>Provoost, S.; Bonte, D. (Ed.)</b> (2004). Levende duinen: een overzicht van de biodiversiteit aan de Vlaamse kust. <i>Mededelingen van het Instituut voor Natuurbehoud</i>, 22. Instituut voor Natuurbehoud: Brussel. ISBN 90-403-0205-7. 416, ill., appendices pp.","BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45488,"SerRR":"Mededelingen van het Instituut voor Natuurbehoud. Instituut voor Natuurbehoud: Brussel. ","StandardTitleSer":"Mededelingen van het Instituut voor Natuurbehoud","ISSN":null,"AbbrevSer":"Mededelingen IN","StandardTitleMon":"Levende duinen: een overzicht van de biodiversiteit aan de Vlaamse kust","StartPage":10,"Pages":36,"ToPubliDate":null,"BRefBibLvlCode":"MS","SerNotes":null,"AutString":"Provoost, S.; Bonte, D. 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