Wiegand, Kerstin

[["dc.bibliographiccitation.firstpage","149"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Ecology"],["dc.bibliographiccitation.lastpage","160"],["dc.bibliographiccitation.volume","101"],["dc.contributor.author","Punchi-Manage, Ruwan"],["dc.contributor.author","Getzin, Stephan"],["dc.contributor.author","Wiegand, Thorsten"],["dc.contributor.author","Kanagaraj, Rajapandian"],["dc.contributor.author","Savitri Gunatilleke, C. V."],["dc.contributor.author","Nimal Gunatilleke, I. A. U."],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Huth, Andreas"],["dc.date.accessioned","2017-09-07T11:52:22Z"],["dc.date.available","2017-09-07T11:52:22Z"],["dc.date.issued","2013"],["dc.description.abstract","One of the primary goals in community ecology is to determine the relative importance of processes and mechanisms that control biodiversity. Here, we examined habitat-driven species assemblages and species distribution patterns as well as their temporal variations for three life stages of two censuses of a 25-ha mixed dipterocarp forest at Sinharaja (Sri Lanka). Our general objective was to find out whether the species assemblages and associated habitat types changed with life stage, spatial scale and species attributes. We also analyse whether the habitat types were related to certain indicator species. Habitat types were determined with multivariate regression tree analyses driven by topographic variables. We found species assemblages associated with five distinct habitat types that appeared consistently for all life stages of the two censuses. These habitats were related to ridge-valley gradients and a pronounced contrast in south-west versus north-east aspect. Habitat-driven structuring was weak at the recruit stage but strong in the juvenile and adult stages. The species assemblage variance explained by topographic variables for different life stages ranged between 10{\\%} for recruits and 23{\\%} for juveniles. The species assemblages determined for different spatial scales (10, 20, 50 m) showed similar habitat partitioning, but the variance explained by the topographic variables increased in all life stages with spatial scale. This could be due to the homogenizing effect of topographic variables at the larger scales and unaccounted environmental variation at the smaller scales. The number of indicator species identified in the two censuses was higher in the juvenile stage than in the adult stage, and nearly all indicator species in the adult stage were also indicator species in the juvenile stage. Synthesis. Our study showed that approximately 75{\\%} of the variance in local species composition is unexplained. This may be due to spatially structured processes such as dispersal limitation, unaccounted biotic and abiotic environmental variables, and stochastic effects, but only 25{\\%} were due to topographic habitat association. Although the pronounced ridge-valley gradient and contrast of south-west versus north-east aspect created consistent habitats, our results suggest that local species assemblages at Sinharaja forest are jointly shaped by neutral and niche processes."],["dc.identifier.doi","10.1111/1365-2745.12017"],["dc.identifier.gro","3148900"],["dc.identifier.pmid","24669731"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5537"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0022-0477"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.subject.gro","Determinants of plant community diversity and stru"],["dc.subject.gro","Dispersal limitation"],["dc.subject.gro","Habitat association"],["dc.subject.gro","Indicator species"],["dc.subject.gro","Multivariate regression tree"],["dc.subject.gro","Neutral theory"],["dc.subject.gro","Sinharaja forest"],["dc.subject.gro","Spatial scale"],["dc.subject.gro","Topography"],["dc.title","Effects of topography on structuring local species assemblages in a Sri Lankan mixed dipterocarp forest"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","93"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Basic and Applied Ecology"],["dc.bibliographiccitation.lastpage","101"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Jeltsch, Florian"],["dc.contributor.author","Blaum, Niels"],["dc.contributor.author","Brose, Ulrich"],["dc.contributor.author","Chipperfield, Joseph D."],["dc.contributor.author","Clough, Yann"],["dc.contributor.author","Farwig, Nina"],["dc.contributor.author","Geissler, Katja"],["dc.contributor.author","Graham, Catherine H."],["dc.contributor.author","Grimm, Volker"],["dc.contributor.author","Hickler, Thomas"],["dc.contributor.author","Huth, Andreas"],["dc.contributor.author","May, Felix"],["dc.contributor.author","Meyer, Katrin M."],["dc.contributor.author","Pagel, Jörn"],["dc.contributor.author","Reineking, Björn"],["dc.contributor.author","Rillig, Matthias C."],["dc.contributor.author","Shea, Katriona"],["dc.contributor.author","Schurr, Frank M."],["dc.contributor.author","Schröder, Boris"],["dc.contributor.author","Tielbörger, Katja"],["dc.contributor.author","Weiss, Lina"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Wiegand, Thorsten"],["dc.contributor.author","Wirth, Christian"],["dc.contributor.author","Zurell, Damaris"],["dc.date.accessioned","2017-09-07T11:52:18Z"],["dc.date.available","2017-09-07T11:52:18Z"],["dc.date.issued","2013"],["dc.description.abstract","Improving our understanding of biodiversity and ecosystem functioning and our capacity to inform ecosystem management requires an integrated framework for functional biodiversity research (FBR). However, adequate integration among empirical approaches (monitoring and experimental) and modelling has rarely been achieved in FBR. We offer an appraisal of the issues involved and chart a course towards enhanced integration. A major element of this path is the joint orientation towards the continuous refinement of a theoretical framework for FBR that links theory testing and generalization with applied research oriented towards the conservation of biodiversity and ecosystem functioning. We further emphasize existing decision-making frameworks as suitable instruments to practically merge these different aims of FBR and bring them into application. This integrated framework requires joint research planning, and should improve communication and stimulate collaboration between modellers and empiricists, thereby overcoming existing reservations and prejudices. The implementation of this integrative research agenda for FBR requires an adaptation in most national and international funding schemes in order to accommodate such joint teams and their more complex structures and data needs. {\\textcopyright} 2013 Gesellschaft f{\\\"{u}}r {\\\"{O}}kologie."],["dc.identifier.doi","10.1016/j.baae.2013.01.001"],["dc.identifier.gro","3148895"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5533"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","1439-1791"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.subject.gro","Biodiversity experiments"],["dc.subject.gro","Biodiversity theory"],["dc.subject.gro","Conservation management"],["dc.subject.gro","Decision-making"],["dc.subject.gro","Ecosystem functions and services"],["dc.subject.gro","Forecasting"],["dc.subject.gro","Functional traits"],["dc.subject.gro","Global change"],["dc.subject.gro","Interdisciplinarity"],["dc.subject.gro","Monitoring programmes"],["dc.title","How can we bring together empiricists and modellers in functional biodiversity research?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1823"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Ecology"],["dc.bibliographiccitation.lastpage","1834"],["dc.bibliographiccitation.volume","96"],["dc.contributor.author","Punchi-Manage, Ruwan"],["dc.contributor.author","Wiegand, Thorsten"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Getzin, Stephan"],["dc.contributor.author","Huth, Andreas"],["dc.contributor.author","Gunatilleke, C. V. Savitri"],["dc.contributor.author","Gunatilleke, I. A. U. Nimal"],["dc.date.accessioned","2017-09-07T11:52:23Z"],["dc.date.available","2017-09-07T11:52:23Z"],["dc.date.issued","2015"],["dc.description.abstract","Interactions among neighbors influence plant performance and should create spatial patterns in local community structure. In order to assess the role of large trees in generating spatial patterns in local species richness we used the individual species-area relationship (ISAR) to evaluate the species richness of trees of different size classes (and dead trees) in neighborhoods with varying size around large trees of different focal species. To reveal signals of species interactions we compared the ISAR function of the individuals of focal species with that of randomly selected nearby locations. We expected that large trees should strongly affect the community structure of smaller trees in their neighborhood, but that these effects should fade away with increasing size class. Unexpectedly we found that only few focal species showed signals of species interactions with trees of the different size classes and that this was less likely for less abundant focal species. However, the few and relatively weak depa..."],["dc.identifier.doi","10.1890/14-1477.1"],["dc.identifier.gro","3148901"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5538"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","0012-9658"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.subject.gro","Independence null model"],["dc.subject.gro","Individual species-area relationship"],["dc.subject.gro","Neighborhood diversity"],["dc.subject.gro","Point pattern analysis"],["dc.subject.gro","Sinharaja tropical forest"],["dc.subject.gro","Spatial scale"],["dc.subject.gro","Stochastic dilution"],["dc.title","Neighborhood diversity of large trees shows independent species patterns in a mixed dipterocarp forest in Sri Lanka"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]