{"refrec":{"BRefID":247064,"RR":"<b>Leblans, N.I.W.; Sigurdsson, D; Roefs, P.; Thuys, R.; Magnusson, B; Janssens, I.A.</b> (2014). Effects of seabird nitrogen input on biomass and carbon accumulation after 50 years of primary succession on a young volcanic island, Surtsey. <i>Biogeosciences 11(22)</i>: 6237-6250. <a href=\"http://dx.doi.org/10.5194/bg-11-6237-2014\" target=\"_blank\">dx.doi.org/10.5194/bg-11-6237-2014</a>","BEntID":238764,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Biogeosciences 11(22)</i>: 6237-6250. <a href=\"https://dx.doi.org/10.5194/bg-11-6237-2014\" target=\"_blank\">https://dx.doi.org/10.5194/bg-11-6237-2014</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Leblans, N.I.W.; Sigurdsson, D; Roefs, P.; Thuys, R.; Magnusson, B; Janssens, I.A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Leblans, N.I.W. <i>et al.</i>","Englishabstract":"What happens during primary succession after the first colonizers have occupied a pristine surface largely depends on how they ameliorate living conditions for other species. For vascular plants the onset of soil development and associated increase in nutrient (mainly nitrogen; N) and water availability is especially important. Here, we report the relationship between N accumulation and biomass and ecosystem carbon (C) stocks in a 50-year-old volcanic island, Surtsey, Iceland, where N stocks are still exceptionally low. However, a 28-year-old seagull colony on the island provided nutrient-enriched areas, which enabled us to assess the relationship between N stock and biomass and ecosystem C stocks across a much larger range in N stock. Further, we compared areas on shallow and deep tephra sands as we expected that deep-rooted systems would be more efficient in retaining N. The sparsely vegetated area outside the colony had accumulated 0.7 kg N ha<sup>-1</sup> yr<sup>-1</sup>, which was ca. 50–60% of the estimated N input rate from wet deposition. This approximates values for systems under low N input and bare dune habitats. The seagulls have added, on average, 47 kg N ha<sup>-1</sup> yr<sup>-1</sup>, which induced a shift from belowground to aboveground in ecosystem N and C stocks and doubled the ecosystem N-use efficiency, determined as the ratio of biomass and C storage per unit N input. Soil depth did not significantly affect total N stocks, which suggests a high N retention potential. Both total ecosystem biomass and C stocks were strongly correlated with N stock inside the colony, which indicated the important role of N during the first steps of primary succession. Inside the colony, the ecosystem biomass C stocks (17–27 ton C ha<sup>-1</sup>) had reached normal values for grasslands, while the soil organic carbon (SOC) stocks (4–10 ton C ha<sup>-1</sup> were only a fraction of normal grassland values. Thus, it will take a long time until the SOC stock reaches equilibrium with the current primary production, during which conditions for new colonists may change.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Effects of seabird nitrogen input on biomass and carbon accumulation after 50 years of primary succession on a young volcanic island, Surtsey","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":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2014,"MonPub":null,"DateUpdate":"2015-06-01","DateCreate":"2015-05-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000346356800004","VABBcode":null,"OpenAcc":1,"DOI":"10.5194/bg-11-6237-2014"},"refs":null,"anarec":{"AnaID":247064,"PubliDate":2014,"Pagination":"6237-6250","XtraPublOfAnaID":null,"ISBN":null,"Volume":"11","Issue":"22","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":68092,"SerRR":"<b>Gattuso, J.P.; Kesselmeier, J. (Ed.)</b> Biogeosciences. Copernicus Publications: Göttingen.  ISSN 1726-4170; e-ISSN 1726-4189","StandardTitleSer":"Biogeosciences","ISSN":"1726-4170","AbbrevSer":"Biogeosciences","StandardTitleMon":null,"StartPage":6237,"Pages":14,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Leblans","Firstname":null,"Initials":"N.I.W.","Affiliation":"Univ. of Antwerp, Dept. of Biology","Discriminator":null,"CorporateFlag":0,"BEntID":238764,"AutID":196541,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Universiteit Antwerpen; Faculteit Wetenschappen; Departement Biologie","ORCID":null,"PersID":31407,"InsID":401},{"AutName":"Sigurdsson","Firstname":"B","Initials":"D","Affiliation":"Agr Univ Iceland, IS-311 Hvanneyri, Borgarnes, Iceland.","Discriminator":null,"CorporateFlag":0,"BEntID":238764,"AutID":196543,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Roefs","Firstname":null,"Initials":"P.","Affiliation":"Univ. of Antwerp, Dept. of Biology","Discriminator":null,"CorporateFlag":0,"BEntID":238764,"AutID":196544,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Universiteit Antwerpen; 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