Leuschner, Christoph

[["dc.bibliographiccitation.firstpage","7996"],["dc.bibliographiccitation.issue","14"],["dc.bibliographiccitation.journal","Sustainability"],["dc.bibliographiccitation.volume","13"],["dc.contributor.author","Heinrichs, Steffi"],["dc.contributor.author","Öder, Veronika"],["dc.contributor.author","Indreica, Adrian"],["dc.contributor.author","Bergmeier, Erwin"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Walentowski, Helge"],["dc.date.accessioned","2021-09-01T06:43:02Z"],["dc.date.available","2021-09-01T06:43:02Z"],["dc.date.issued","2021"],["dc.description.abstract","Climate change challenges important native timber species in Central Europe. The introduction of non-native tree species originating from warmer climates is one option to make Central European forests compatible to global warming. This, however, requires an assessment of the species’ growth requirements, and of its impact on biodiversity in its native ranges. Silver lime (Tilia tomentosa), a moderately drought-tolerant, thermophilous tree species of South-eastern Europe is considered suitable for the future. Along three elevational transects in western Romania, we assessed the impact of changing climate and local site conditions on the abundance of this tree species and contrasted plant species diversity and composition of lime-dominated forests with mesophytic oak and beech forests. Local site conditions and disturbance histories shaped the distribution pattern of silver lime. When dominant, it reduced plant species diversity within stands due to its dense canopy. For shade-tolerant, mesophytic species, though, lime forests provided an additional habitat and extended their range into warmer environments. Thus, silver lime may have the potential as an admixed tree species forming a transitory meso-thermophilous habitat in the future. At the same time, silver lime may be limited under increasing drought frequency."],["dc.description.abstract","Climate change challenges important native timber species in Central Europe. The introduction of non-native tree species originating from warmer climates is one option to make Central European forests compatible to global warming. This, however, requires an assessment of the species’ growth requirements, and of its impact on biodiversity in its native ranges. Silver lime (Tilia tomentosa), a moderately drought-tolerant, thermophilous tree species of South-eastern Europe is considered suitable for the future. Along three elevational transects in western Romania, we assessed the impact of changing climate and local site conditions on the abundance of this tree species and contrasted plant species diversity and composition of lime-dominated forests with mesophytic oak and beech forests. Local site conditions and disturbance histories shaped the distribution pattern of silver lime. When dominant, it reduced plant species diversity within stands due to its dense canopy. For shade-tolerant, mesophytic species, though, lime forests provided an additional habitat and extended their range into warmer environments. Thus, silver lime may have the potential as an admixed tree species forming a transitory meso-thermophilous habitat in the future. At the same time, silver lime may be limited under increasing drought frequency."],["dc.description.sponsorship","Bundesministerium für Umwelt, Naturschutz und nukleare Sicherheit"],["dc.identifier.doi","10.3390/su13147996"],["dc.identifier.pii","su13147996"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/89205"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-455"],["dc.publisher","MDPI"],["dc.relation.eissn","2071-1050"],["dc.rights","https://creativecommons.org/licenses/by/4.0/"],["dc.title","The Influence of Tilia tomentosa Moench on Plant Species Diversity and Composition in Mesophilic Forests of Western Romania–A Potential Tree Species for Warming Forests in Central Europe?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e47128"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","PLoS ONE"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Homeier, Jürgen"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Camenzind, Tessa"],["dc.contributor.author","Cumbicus, Nixon L."],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Martinson, Guntars O."],["dc.contributor.author","Poma, L. Nohemy"],["dc.contributor.author","Rillig, Matthias C."],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Scheu, Stefan"],["dc.contributor.author","Veldkamp, Edzo"],["dc.contributor.author","Wilcke, Wolfgang"],["dc.contributor.author","Wullaert, Hans"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.editor","Chen, Han Y. H."],["dc.date.accessioned","2017-09-07T11:54:53Z"],["dc.date.available","2017-09-07T11:54:53Z"],["dc.date.issued","2012"],["dc.description.abstract","Tropical regions are facing increasing atmospheric inputs of nutrients, which will have unknown consequences for the structure and functioning of these systems. Here, we show that Neotropical montane rainforests respond rapidly to moderate additions of N (50 kg ha(-1) yr(-1)) and P (10 kg ha(-1) yr(-1)). Monitoring of nutrient fluxes demonstrated that the majority of added nutrients remained in the system, in either soil or vegetation. N and P additions led to not only an increase in foliar N and P concentrations, but also altered soil microbial biomass, standing fine root biomass, stem growth, and litterfall. The different effects suggest that trees are primarily limited by P, whereas some processes-notably aboveground productivity--are limited by both N and P. Highly variable and partly contrasting responses of different tree species suggest marked changes in species composition and diversity of these forests by nutrient inputs in the long term. The unexpectedly fast response of the ecosystem to moderate nutrient additions suggests high vulnerability of tropical montane forests to the expected increase in nutrient inputs."],["dc.identifier.doi","10.1371/journal.pone.0047128"],["dc.identifier.gro","3150124"],["dc.identifier.pmid","23071734"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8325"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6854"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.relation.issn","1932-6203"],["dc.rights","CC BY 2.5"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.5"],["dc.title","Tropical Andean Forests Are Highly Susceptible to Nutrient Inputs—Rapid Effects of Experimental N and P Addition to an Ecuadorian Montane Forest"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","163"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Plant Ecology"],["dc.bibliographiccitation.lastpage","173"],["dc.bibliographiccitation.volume","199"],["dc.contributor.author","Köhler, Lars"],["dc.contributor.author","Hölscher, Dirk"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2017-09-07T11:45:46Z"],["dc.date.available","2017-09-07T11:45:46Z"],["dc.date.issued","2008"],["dc.description.abstract","Tropical upper montane forests usually comprise trees of small stature with a relatively low aboveground productivity. In contrast to this rule, in the Cordillera de Talamanca (Costa Rica), tall trees (>35 m in height and more than 60 cm in diameter) are characteristic for the upper montane old-growth oak forests which are growing at an altitude of almost 3,000 m close to the alpine timberline. For these exceptional forests, productivity data are not yet available. In this study, we analyzed litterfall and its components (tree leaves, litter of epiphytic vascular and non-vascular plants, mistletoes, twigs and other canopy debris) in three forest stands belonging to different successional stages and related seasonal changes in litterfall to micrometeorological variables. The studied stands were early-successional forest (10–15-year-old), mid-successional forest (40-year-old), and old-growth forest. The stands are dominated by Quercus copeyensis and are located at 2,900-m altitude. Total litterfall was highest in the mid-successional forest (1,720 g m−2 y−1), and reached 1,288 g m−2 y−1 in the old-growth forest and 934 g m−2 y−1 in the early-successional forest. Litter mass was dominated by leaves in all stages (56–84% of total litterfall). In the old-growth forest, however, twigs and small canopy debris particles (33%), epiphytes (6%), and mistletoes (5%) also contributed substantially to litter mass. Leaf litterfall showed a clear seasonal pattern with a negative correlation to monthly precipitation and highest values in the dry season (January–April). However, the strongest correlation existed with minimum air temperature (negative), probably because temperatures already dropped at the end of the rainy season, when precipitation had not yet declined and leaf shedding already increased. In contrast, litterfall of epiphyte mass, and twigs and other debris was mostly dependent on occasional strong winds. We conclude that the upper montane oak forests of the Cordillera de Talamanca are exceptional with respect to the large tree size and the relatively high productivity as indicated by litterfall. Litter mass was especially high in the mid-successional and old-growth forests, where the observed annual totals are among the highest recorded for tropical forests so far."],["dc.format.mimetype","application/pdf"],["dc.identifier.doi","10.1007/s11258-008-9421-2"],["dc.identifier.gro","3149094"],["dc.identifier.ppn","589171305"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/3125"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5741"],["dc.language.iso","en"],["dc.notes.intern","Hoelscher Crossref import"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.publisher","Springer"],["dc.relation.issn","1385-0237"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject","Epiphytes; Forest succession; Litter production; Quercus; Seasonality"],["dc.subject.ddc","577"],["dc.title","High litterfall in old-growth and secondary upper montane forest of Costa Rica"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Biogeography"],["dc.bibliographiccitation.lastpage","16"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Brambach, Fabian"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Tjoa, Aiyen"],["dc.contributor.author","Culmsee, Heike"],["dc.date.accessioned","2019-12-16T15:20:07Z"],["dc.date.accessioned","2021-10-27T13:11:31Z"],["dc.date.available","2019-12-16T15:20:07Z"],["dc.date.available","2021-10-27T13:11:31Z"],["dc.date.issued","2019"],["dc.description.abstract","Abstract Aim: Massive biota mixing due to plate‐tectonic movement has shaped the biogeography of Malesia and during the colonization process, Asian plant lineages have presumably been more successful than their Australian counterparts. We aim to gain a deeper understanding of this colonization asymmetry and its underlying mechanisms by analysing how species richness and abundance of Asian versus Australian tree lineages in three Malesian subregions change along environmental gradients. We hypothesize that differing environmental histories of Asia and Australia, and their relation to habitats in Malesia, have been important factors driving assembly patterns of the Malesian flora. Location: Malesia, particularly Sundaland, the Philippines and Wallacea. Taxon: Seed plants (trees). Methods: We compiled plot‐level data of environmental variables and tree abundances from three Malesian subregions. For each species, we inferred its geographical ancestry (Asian or Australian) based on published phylogenetic studies and the fossil record. We used proportions of Australian versus Asian species and individuals per plot to test how they are related to environmental parameters and geographical position using logistic regression models. Results: Proportionally more Australian (and fewer Asian) tree species and individuals occurred (a) at higher elevations, (b) on sites over ultramafic parent material and (c) closer to their source region Australia with a significant increase of Australian elements east of Wallace's line. The trend was stronger for individuals than for species. Main conclusions: Long‐term environmental similarities between source and sink habitats have shaped the assembly of the Malesian flora: Tree lineages from tropical Southeast Asia predominantly colonized the Malesian lowlands and rich soils, whereas trees from montane refuges in Australia were more successful in the newly emerging Malesian mountains and on poorer soils. The biogeographical patterns caused by the Malesian Floristic Interchange point to the importance of phylogenetic biome conservatism in biotic interchanges and resemble"],["dc.identifier.doi","10.1111/jbi.13747"],["dc.identifier.eissn","1365-2699"],["dc.identifier.issn","0305-0270"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16965"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91602"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.relation.eissn","1365-2699"],["dc.relation.issn","1365-2699"],["dc.relation.issn","0305-0270"],["dc.relation.orgunit","Fakultät für Biologie und Psychologie"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","570"],["dc.title","Predominant colonization of Malesian mountains by Australian tree lineages"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.contributor.author","Wissemann, Volker"],["dc.contributor.author","Jahn, Denise"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2022-04-05T08:56:52Z"],["dc.date.available","2022-04-05T08:56:52Z"],["dc.date.issued","2018"],["dc.description.abstract","Die vorliegende Arbeit beschäftigt sich mit der Katalogisierung der Holzsammlung des Albrecht-von-Haller-Instituts für Pflanzenwissenschaften der Universität Göttingen, die heute in der Abteilung für Ökologie und Ökosystemforschung aufbewahrt wird. Über einen langen Zeitraum hinweg wurden Gehölzproben verschiedenster Herkunft gesammelt. Da dies jedoch ohne eine bestimmte Ordnung geschah, kann zum Zeitpunkt vor der Katalogisierung eher von einer Holzansammlung gesprochen werden. Ziel der Arbeit war es, den Bestand der gesammelten Objekte zu erfassen und zu erschließen, um diese effektiv für weitere Studien nutzen zu können. Die Arbeit beinhaltet die Daten der gesamten Holzsammlung. Vertiefend werden Belege des Sammlers Georg Schweinfurth, die in der Sammlung enthalten sind, genauer beschrieben. An ihnen wird deutlich, welche hohe Aussagekraft alte Gehölzproben in der heutigen Zeit für die historische Biodiversitätsforschung haben. Prof. Dr. Volker Wissemann ist Professor für Spezielle Botanik an der Justus-Liebig-Universität Gießen, Direktor des Instituts für Botanik incl. Herbarium, Kondirektor der Hermann-Hoffmann-Akademie und wissenschaftlicher Leiter des botanischen Gartens Gießen. Er ist Mitglied der Akademie der Wissenschaften zu Göttingen und Alumnus der Georgia Augusta. Denise Jahn ist Lehrerin am Markland College in den Niederlanden. Sie hat ihren Masterabschluss an der Friedrich-Schiller-Universität in Jena in den Fächern Geographie und Biologie erworben, und sich im Rahmen ihrer Masterarbeit mit der Holzsammlung am Albrecht-von-Haller Institut der Georgia Augusta befasst. Prof. Dr. Christoph Leuschner ist Professor für Pflanzenökologie und Ökosystemforschung am Albrecht-von-Haller Institut der Georg-August Universität Göttingen, sowie Direktor des Botanischen Gartens der Georgia Augusta, Sektion Experimentelle Ökologie (Neuer Botanischer Garten). Er ist Mitglied der Akademie der Wissenschaften zu Göttingen."],["dc.format.extent","81"],["dc.identifier.doi","10.17875/gup2018-1104"],["dc.identifier.isbn","978-3-86395-375-1"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?univerlag-isbn-978-3-86395-375-1"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/106307"],["dc.identifier.urn","urn:nbn:de:gbv:7-isbn-978-3-86395-375-1-6"],["dc.language.iso","de"],["dc.notes.intern","Import GROB-550"],["dc.publisher","Universitätsverlag Göttingen"],["dc.publisher.place","Göttingen"],["dc.rights.uri","http://creativecommons.org/licenses/by-sa/4.0/deed.de"],["dc.title","Katalog der Holzsammlung am Albrecht-von-Haller-Institut für Pflanzenwissenschaften der Georgia Augusta"],["dc.title.subtitle","Mit einem Beitrag zur ersten Ägyptenreise 1864 von Georg Schweinfurth (1836-1925)"],["dc.type","book"],["dc.type.subtype","exhibitioncatalogue_book"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e0149949"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","PLoS One"],["dc.bibliographiccitation.lastpage","22"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Abou Rajab, Yasmin"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Barus, Henry"],["dc.contributor.author","Tjoa, Aiyen"],["dc.contributor.author","Hertel, Dietrich"],["dc.date.accessioned","2017-11-28T10:03:31Z"],["dc.date.available","2017-11-28T10:03:31Z"],["dc.date.issued","2016"],["dc.description.abstract","One of the main drivers of tropical forest loss is their conversion to oil palm, soy or cacao plantations with low biodiversity and greatly reduced carbon storage. Southeast Asian cacao plantations are often established under shade tree cover, but are later converted to non-shaded monocultures to avoid resource competition. We compared three co-occurring cacao cultivation systems (3 replicate stands each) with different shade intensity (non-shaded monoculture, cacao with the legume Gliricidia sepium shade trees, and cacao with several shade tree species) in Sulawesi (Indonesia) with respect to above- and belowground biomass and productivity, and cacao bean yield. Total biomass C stocks (above- and belowground) increased fivefold from the monoculture to the multi-shade tree system (from 11 to 57 Mg ha-1), total net primary production rose twofold (from 9 to 18 Mg C ha-1 yr-1). This increase was associated with a 6fold increase in aboveground biomass, but only a 3.5fold increase in root biomass, indicating a clear shift in C allocation to aboveground tree organs with increasing shade for both cacao and shade trees. Despite a canopy cover increase from 50 to 93%, cacao bean yield remained invariant across the systems (variation: 1.1–1.2 Mg C ha-1 yr-1). The monocultures had a twice as rapid leaf turnover suggesting that shading reduces the exposure of cacao to atmospheric drought, probably resulting in greater leaf longevity. Thus, contrary to general belief, cacao bean yield does not necessarily decrease under shading which seems to reduce physical stress. If planned properly, cacao plantations under a shade tree cover allow combining high yield with benefits for carbon sequestration and storage, production system stability under stress, and higher levels of animal and plant diversity."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2016"],["dc.identifier.doi","10.1371/journal.pone.0149949"],["dc.identifier.fs","619834"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13130"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/10611"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.relation","SFB 990: Ökologische und sozioökonomische Funktionen tropischer Tieflandregenwald-Transformationssysteme (Sumatra, Indonesien)"],["dc.relation","SFB 990 | B | B04: Pflanzenproduktivität und Ressourcenaufteilung im Wurzelraum entlang von Gradienten tropischer Landnutzungsintensität und Baumartenvielfalt"],["dc.relation.eissn","1932-6203"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Cacao Cultivation under Diverse Shade Tree Cover Allows High Carbon Storage and Sequestration without Yield Losses"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","unknown"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Forest Ecosystems"],["dc.bibliographiccitation.lastpage","10"],["dc.bibliographiccitation.volume","4"],["dc.contributor.author","Homeier, Jürgen"],["dc.contributor.author","Kurzatkowski, Dariusz"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-02-26T10:18:43Z"],["dc.date.available","2018-02-26T10:18:43Z"],["dc.date.issued","2017"],["dc.description.abstract","Background The floodplain forests of Araguaia River, a clear-water river in the southeastern Amazon (Tocantins State, Brazil), are characterized by seasonal flooding up to 3.5 m height, low nutrient levels in the water, and seasonal drought periods of 4–5 months. Methods We studied the forest dynamics (tree diameter growth, tree mortality and recruitment) of this unique forest ecosystem over a 5-year period by repeated censuses in 12 permanent plots established along a flooding gradient. Results The cumulative basal area in the plots increased by 0.84 (±0.45) m2∙ha–1∙yr–1 (mean ±SD) in the annually-flooded (AF) plots in lower terrain and by 0.69 (±1.00) m2∙ha–1∙yr–1 in the higher non-annually flooded (NAF) plots, corresponding to an aboveground biomass increase of 0.81 (±0.57) and 0.69 (±1.58) Mg∙ha–1∙yr–1 in the AF and NAF plots, indicating a recent carbon sink in the biomass. Mean diameter growth rate was 1.8 (±0.44) mm∙yr–1 in the AF and 2.0 (±0.56) mm∙yr–1 in the NAF plots (corresponding to a coarse wood production of 1.53 (±1.29) and 2.02 (±0.52) Mg∙ha–1∙yr–1), indicating no flooding effect on radial growth. Mean mortality rates in the 5-year period were 1.9 (±0.37)%∙yr–1 in the AF plots and 1.8 (±0.87)%∙yr–1 in the NAF plots with no differences along the flooding gradient. Highest mortalities were registered in the AF plots for the 10–20 cm dbh class (2.4%∙yr–1), likely as a consequence of flooding, and in the NAF plots for the 40–50 cm dbh class (3.0%∙yr–1), probably mainly caused by ENSO-related droughts. Conclusions We conclude that these drought-affected tropical floodplain forests have a lower standing biomass and aboveground productivity than central Amazonian floodplain forests in more humid climates, and the imprint of the flooding gradient on stand dynamics is relatively weak, which may result from the lower flooding height and the interaction of flooding with low nutrient supply and periodic drought."],["dc.identifier.doi","10.1186/s40663-017-0097-8"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14759"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12584"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Stand dynamics of the drought-affected floodplain forests of Araguaia River, Brazilian Amazon"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","47"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","BMC Ecology"],["dc.bibliographiccitation.volume","18"],["dc.contributor.author","Glatthorn, Jonas"],["dc.contributor.author","Feldmann, Eike"],["dc.contributor.author","Tabaku, Vath"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Meyer, Peter"],["dc.date.accessioned","2019-07-09T11:49:34Z"],["dc.date.available","2019-07-09T11:49:34Z"],["dc.date.issued","2018"],["dc.description.abstract","Abstract Background Old-growth and primeval forests are passing through a natural development cycle with recurring stages of forest development. Several methods for assigning patches of different structure and size to forest development stages or phases do exist. All currently existing classification methods have in common that a priori assumptions about the characteristics of certain stand structural attributes such as deadwood amount are made. We tested the hypothesis that multivariate datasets of primeval beech forest stand structure possess an inherent, aggregated configuration of data points with individual clusters representing forest development stages. From two completely mapped primeval beech forests in Albania, seven ecologically important stand structural attributes characterizing stand density, regeneration, stem diameter variation and amount of deadwood are derived at 8216 and 9666 virtual sampling points (moving window, focal filtering). K-means clustering is used to detect clusters in the datasets (number of clusters (k) between 2 and 5). The quality of the single clustering solutions is analyzed with average silhouette width as a measure for clustering quality. In a sensitivity analysis, clustering is done with datasets of four different spatial scales of observation (200, 500, 1000 and 1500 m2, circular virtual plot area around sampling points) and with two different kernels (equal weighting of all objects within a plot vs. weighting by distance to the virtual plot center). Results The clustering solutions succeeded in detecting and mapping areas with homogeneous stand structure. The areas had extensions of more than 200 m2, but differences between clusters were very small with average silhouette widths of less than 0.28. The obtained datasets had a homogeneous configuration with only very weak trends for clustering. Conclusions Our results imply that forest development takes place on a continuous scale and that discrimination between development stages in primeval beech forests is splitting continuous datasets at selected thresholds. For the analysis of the forest development cycle, direct quantification of relevant structural features or processes might be more appropriate than classification. If, however, the study design demands classification, our results can justify the application of conventional forest development stage classification schemes rather than clustering."],["dc.identifier.doi","10.1186/s12898-018-0203-y"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15712"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59581"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","BioMed Central"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Classifying development stages of primeval European beech forests: is clustering a useful tool?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","49"],["dc.bibliographiccitation.issue","1-2"],["dc.bibliographiccitation.journal","Plant and Soil"],["dc.bibliographiccitation.lastpage","56"],["dc.bibliographiccitation.volume","319"],["dc.contributor.author","Paul, Alexander"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-11-07T08:29:35Z"],["dc.date.available","2018-11-07T08:29:35Z"],["dc.date.issued","2009"],["dc.description.abstract","Mechanisms causing the calcifuge-calcicole behavior of lichens are largely unexplored. Studying the case examples of two closely related terricolous lichens, the calcifuge Cladonia furcata subsp. furcata and the calcicole C. rangiformis, we found that preference for acidic or calcareous soils in these lichens is related to iron and phosphate uptake as in vascular plants. In laboratory studies, the calcicole species was more efficient in the intracellular uptake of Fe(3+) and phosphate at pH 8 than the calcifuge species. At pH 3, intracellular uptake of Fe(2+) in the calcicole species significantly exceeded that in the calcifuge species suggesting that calcicole lichens suffer from toxicity symptoms by excess Fe(2+) at acidic sites. Though these observations parallel findings from calcifuge and calcicole vascular plants, mechanisms leading to the different iron and phosphate uptake characteristics in the studied calcifuge and calcicole lichens may differ from those in vascular plants and should be the topic of future research. A role of the depside atranorin in facilitating iron uptake by reducing Fe(3+) in the apoplast is hypothesized."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft [1544/1-1]"],["dc.identifier.doi","10.1007/s11104-008-9848-1"],["dc.identifier.isi","000266143400005"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/3601"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16687"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0032-079X"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Iron and phosphate uptake explains the calcifuge-calcicole behavior of the terricolous lichens Cladonia furcata subsp furcata and C-rangiformis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e47192"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","PloS one"],["dc.bibliographiccitation.lastpage","7"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Kessler, Michael"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Jungkunst, Hermann F."],["dc.contributor.author","Kluge, Jürgen"],["dc.contributor.author","Abrahamczyk, Stefan"],["dc.contributor.author","Bos, Merijn Marinus"],["dc.contributor.author","Buchori, Damayanti"],["dc.contributor.author","Gerold, Gerhard"],["dc.contributor.author","Gradstein, S. Robbert"],["dc.contributor.author","Köhler, Stefan"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Moser, Gerald"],["dc.contributor.author","Pitopang, Ramadhanil"],["dc.contributor.author","Saleh, Shahabuddin"],["dc.contributor.author","Schulze, Christian Hansjoachim"],["dc.contributor.author","Sporn, Simone Goda"],["dc.contributor.author","Steffan-Dewenter, Ingolf"],["dc.contributor.author","Tjitrosoedirdjo, Sri Sudarmiyati"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.editor","Bond-Lamberty, Ben"],["dc.date.accessioned","2018-07-05T16:08:40Z"],["dc.date.available","2018-07-05T16:08:40Z"],["dc.date.issued","2012"],["dc.description.abstract","Managing ecosystems for carbon storage may also benefit biodiversity conservation, but such a potential ‘win-win’ scenario has not yet been assessed for tropical agroforestry landscapes. We measured above- and below-ground carbon stocks as well as the species richness of four groups of plants and eight of animals on 14 representative plots in Sulawesi, Indonesia, ranging from natural rainforest to cacao agroforests that have replaced former natural forest. The conversion of natural forests with carbon stocks of 227–362 Mg C ha−1 to agroforests with 82–211 Mg C ha−1 showed no relationships to overall biodiversity but led to a significant loss of forest-related species richness. We conclude that the conservation of the forest-related biodiversity, and to a lesser degree of carbon stocks, mainly depends on the preservation of natural forest habitats. In the three most carbon-rich agroforestry systems, carbon stocks were about 60% of those of natural forest, suggesting that 1.6 ha of optimally managed agroforest can contribute to the conservation of carbon stocks as much as 1 ha of natural forest. However, agroforestry systems had comparatively low biodiversity, and we found no evidence for a tight link between carbon storage and biodiversity. Yet, potential win-win agroforestry management solutions include combining high shade-tree quality which favours biodiversity with cacao-yield adapted shade levels."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2012"],["dc.identifier.doi","10.1371/journal.pone.0047192"],["dc.identifier.gro","3150069"],["dc.identifier.pmid","23077569"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8161"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15169"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.relation.issn","1932-6203"],["dc.rights","CC BY 2.5"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.5"],["dc.title","Can Joint Carbon and Biodiversity Management in Tropical Agroforestry Landscapes Be Optimized?"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]