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2020-02-20Zeitschriftenartikel DOI: 10.18452/24999
Species–area relationships on small islands differ among plant growth forms
dc.contributor.authorSchrader, Julian
dc.contributor.authorKönig, Christian
dc.contributor.authorTriantis, Kostas
dc.contributor.authorTrigas, Panayiotis
dc.contributor.authorKreft, Holger
dc.contributor.authorWeigelt, Patrick
dc.contributor.editorSandel, Brody
dc.date.accessioned2022-07-12T12:45:50Z
dc.date.available2022-07-12T12:45:50Z
dc.date.issued2020-02-20none
dc.date.updated2020-10-19T19:20:12Z
dc.identifier.urihttp://edoc.hu-berlin.de/18452/25681
dc.description.abstractAim: We tested whether species–area relationships of small islands differ among plant growth forms and whether this influences the prevalence of the small-island effect (SIE). The SIE states that species richness on small islands is independent of island area or relates to area in a different way compared with larger islands. We investigated whether island isolation affects the limits of the SIE and which environmental factors drive species richness on small islands. Location: Seven hundred islands (< 100 km2) worldwide belonging to 17 archipelagos. Major taxa studied: Angiosperms. Methods: We applied linear and breakpoint species–area models for angiosperm species richness and for herb, shrub and tree species richness per archipelago separately, to test for the existence of SIEs. For archipelagos featuring the SIE, we calculated the island area at which the breakpoints occurred (breakpoint area) and used linear models to test whether the breakpoint areas varied with isolation. We used linear mixed-effect models to discern the effects of seven environmental variables related to island area, isolation and other environmental factors on the species richness of each growth form for islands smaller than the breakpoint area. Results: For 71% of all archipelagos, we found an SIE for total and herb species richness, and for 59% for shrub species richness and 53% for tree species richness. Shrub and tree species richness showed larger breakpoint areas than total and herb species richness. The breakpoint area was significantly positively affected by the isolation of islands within an archipelago for total and shrub species richness. Species richness on islands within the range of the SIE was differentially affected by environmental factors across growth forms. Main conclusion: The SIE is a widespread phenomenon that is more complex than generally described. Different functional groups have different environmental requirements that shape their biogeographical patterns and affect species–area and, more generally, richness–environment relationships. The complexity of these patterns cannot be revealed when measuring overall plant species richness.eng
dc.description.sponsorshipDeutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659
dc.description.sponsorshipStudienstiftung des Deutschen Volkes http://dx.doi.org/10.13039/501100004350
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY 4.0) Attribution 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectbreakpointeng
dc.subjectenvironmental factorseng
dc.subjectfunctional island biogeographyeng
dc.subjectgrowth formeng
dc.subjectisolationeng
dc.subjectplant functional typeseng
dc.subjectsmall-island effecteng
dc.subjectspecies–area relationshipeng
dc.subject.ddc550 Geowissenschaftennone
dc.subject.ddc570 Biologienone
dc.titleSpecies–area relationships on small islands differ among plant growth formsnone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/25681-3
dc.identifier.doihttp://dx.doi.org/10.18452/24999
dc.type.versionpublishedVersionnone
local.edoc.pages16none
local.edoc.type-nameZeitschriftenartikel
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
dc.description.versionPeer Reviewednone
dcterms.bibliographicCitation.doi10.1111/geb.13056none
dcterms.bibliographicCitation.journaltitleGlobal Ecology and Biogeographynone
dcterms.bibliographicCitation.volume29none
dcterms.bibliographicCitation.issue5none
dcterms.bibliographicCitation.originalpublishernameWiley-Blackwellnone
dcterms.bibliographicCitation.originalpublisherplaceOxford [u.a.]none
dcterms.bibliographicCitation.pagestart814none
dcterms.bibliographicCitation.pageend829none
bua.departmentMathematisch-Naturwissenschaftliche Fakultätnone

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