Leuschner, Christoph

[["dc.bibliographiccitation.firstpage","563"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Acta Oecologica"],["dc.bibliographiccitation.lastpage","572"],["dc.bibliographiccitation.volume","35"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Nyambayar, Suran"],["dc.contributor.author","Osokhjargal, Dalaikhuu"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-11-07T11:24:27Z"],["dc.date.available","2018-11-07T11:24:27Z"],["dc.date.issued","2009"],["dc.description.abstract","The potential of Siberian elm (Ulmus pumila) to regenerate from seeds was experimentally studied on south-facing slopes in the northern Mongolian mountain taiga. These slopes are covered with a vegetation mosaic of different steppe Communities and small, savanna-like, U. pumila open woodlands. The hypothesis is tested that the xeric microclimate and high herbivore densities limit the success of seedling establishment in U. pumila and thereby prevent elm from complete encroachment of the grassland-dominated slopes. Seeds were sown and 2-yr-old seedlings were planted prior to the growing season. The water Supply was manipulated by irrigation, as was the feeding pressure by caterpillars with an insecticide. Large herbivores were excluded by fencing. Seeds germinated throughout the summer, but the emerged seedlings did not survive for more than 2 or 3 weeks. Germination rates increased with increasing soil water content and decreasing soil temperatures. Many seeds were consumed by granivores. Most planted 2-yr-old seedlings survived the two growing seasons covered by the study. However, the seedlings suffered from feeding damage by insects (gypsy moth, grasshoppers) and small mammals, from nitrogen deficiency and, to a lesser degree, from drought. The results suggest that high susceptibility of newly emerged seedlings to environmental stresses is a serious bottle neck for U. pumila that prevents them from the formation of closed forests on northern Mongolia's steppe slopes, whereas the probability for seedling survival after this early stage is high. (C) 2009 Elsevier Masson SAS. All rights reserved."],["dc.identifier.doi","10.1016/j.actao.2009.05.002"],["dc.identifier.isi","000270748300001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/56408"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Gauthier-villars/editions Elsevier"],["dc.relation.issn","1146-609X"],["dc.title","Establishment of Ulmus pumila seedlings on steppe slopes of the northern Mongolian mountain taiga"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","136"],["dc.bibliographiccitation.journal","Biological Conservation"],["dc.bibliographiccitation.lastpage","145"],["dc.bibliographiccitation.volume","157"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","de Bruyn, Uwe"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-08-13T17:13:02Z"],["dc.date.available","2018-08-13T17:13:02Z"],["dc.date.issued","2013"],["dc.description.abstract","Comparing data of epiphytic lichen diversity in semi-natural broad-leaved forests in north-western Germany from the 19th to early 20th centuries with recent inventories revealed strong changes, even though forest structure and tree species composition had changed only little. In three study areas, between 55% and 70% of the species became rarer during the 100–150-year long observation period. In the spatially extended study areas Weser-Ems Lowlands and Solling Mountains, 36% or 39% of the species, respectively, could not be rediscovered in the recent survey. Considering that species might have been overlooked during revisitation, the extinction rate was estimated to be 28% in the Weser-Ems Lowlands and 30% in the Solling Mountains based on a estimated probability for recovering the species of 75% in crustose lichens and 90% in foliose and fruticose lichens. The main causes of the species decline are thought to be forest management (especially the reduction of overmature and decaying trees), the reduction of soil moisture and, with it, air humidity due to drainage as well as the deposition of acidifying and fertilizing substances from the atmosphere. Lichens specialized on rain-sheltered bark furrows and cavities of old trees or smooth, shady bark or moist thick-stemmed deadwood in the forest interior have suffered the strongest declines, including the epiphyte flora of Fagus sylvatica, Central Europe’s most abundant native forest tree species. Only few lichens which benefit from nitrogen deposition, global warming or the acidification of bark due to sulphur dioxide pollution have spread."],["dc.identifier.doi","10.1016/j.biocon.2012.06.015"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15271"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Dramatic diversity losses in epiphytic lichens in temperate broad-leaved forests during the last 150 years"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","309"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Environmental and Experimental Botany"],["dc.bibliographiccitation.lastpage","313"],["dc.bibliographiccitation.volume","68"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Juergens, Sascha-Rene"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-11-07T08:43:30Z"],["dc.date.available","2018-11-07T08:43:30Z"],["dc.date.issued","2010"],["dc.description.abstract","The depsidone norstictic acid is a widespread secondary metabolite produced by lichen-forming fungi. Like other lichen substances, most of the norstictic acid is deposited as crystals in the apoplast of lichens, whereas only a small proportion is soluble in water. Since recent studies suggested a role of lichen substances in shaping the preferences of lichens for specific pH conditions and metal availabilities in their environment, we studied physico-chemical properties of norstictic acid to test the hypothesis that the dissociation and metal-binding behavior of this substance could explain the ecological characteristics of norstictic acid-producing lichens with respect to pH and metal availability. UV spectroscopy was used to study the dissociation and the pH dependence of the metal-binding behavior of isolated norstictic acid in methanol. Metals applied were selected macro- and micro-nutrients (Ce2+, Fe2+, Fe3+, Mg2+, Mn2+, Zn2+). The first dissociation constant (pK(a1)) of norstictic acid amounts to 4.0. It is higher than that of other lichen substances produced by lichens at strongly acidic sites but equals that of the dibenzofuran usnic acid. In solutions containing norstictic acid and Cu2+, Mn2+ or Zn2+ increasing absorbance was observed at pH > 7.5 indicating increasing affinity of the metal ions for the norstictic acid along with pH. Fe2+ and Mg2+ do not form complexes with norstictic acid. The relative high pK(a1) value of norstictic acid is probably responsible for the lack of norstictic acid-producing lichens on strongly acidic substrata. At pH << 4, norstictic acid is thought to damage lichens by shuttling protons into the cytoplasm. Moderate affinity of norstictic acid to Cu2+, Fe3+, Mn2+ and Zn2+ suggests a potential role at controlling the uptake of these ions at slightly alkaline conditions. (C) 2010 Elsevier B.V. All rights reserved."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft [Ha 3152/8-1]"],["dc.identifier.doi","10.1016/j.envexpbot.2010.01.003"],["dc.identifier.isi","000276741400010"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19979"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0098-8472"],["dc.title","Norstictic acid: Correlations between its physico-chemical characteristics and ecological preferences of lichens producing this depsidone"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","359"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Annals of Botany"],["dc.bibliographiccitation.lastpage","366"],["dc.bibliographiccitation.volume","108"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Otto, Philipp I."],["dc.contributor.author","Dittrich, Sebastian"],["dc.contributor.author","Jacob, Mascha"],["dc.contributor.author","Bade, Claudia"],["dc.contributor.author","Doerfler, Inken"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-11-07T08:53:44Z"],["dc.date.available","2018-11-07T08:53:44Z"],["dc.date.issued","2011"],["dc.description.abstract","Backgrounds and Aims Lecanora conizaeoides was until recently western and central Europe's most abundant epiphytic lichen species or at least one of the most common epiphytes. The species is adapted to very acidic conditions at pH values around 3 and high concentrations of SO(2) and its derivatives formed in aqueous solution, and thus spread with increasing SO(2) deposition during the 19th and 20th centuries. With the recent decrease of SO(2) emissions to nearly pre-industrial levels within 20 years, L. conizaeoides declined from most of its former range. If still present, the species is no longer the dominant epiphyte, but is occurring in small densities only. The rapid spread of the L. conizaeoides in Europe from an extremely rare species to the probably most frequent epiphytic lichen and the subsequent rapid dieback are unprecedented by any other organism. The present study aimed at identifying the magnitude of deacidification needed to cause the dieback of the lichen. Methods The epiphytic lichen diversity and bark chemistry of montane spruce forests in the Harz Mountains, northern Germany, were studied and the results were compared with data recorded with the same methods 13-15 years ago. Key Results Lecanora conizaeoides, which was the dominant epiphyte of the study area until 15 years ago, is still found on most trees, but only with small cover values of <= 1%. The bark pH increased by only 0.4 pH units. Conclusions The data suggest that only slight deacidification of the substratum causes the breakdown of the L. conizaeoides populations. Neither competitors nor parasites of L. conizaeoides that may have profited from reduced SO(2) concentrations are likely causes of the rapid dieback of the species."],["dc.description.sponsorship","Stemmler Foundation"],["dc.identifier.doi","10.1093/aob/mcr136"],["dc.identifier.isi","000293300500012"],["dc.identifier.pmid","21788378"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22492"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","0305-7364"],["dc.title","Small increase in sub-stratum pH causes the dieback of one of Europe's most common lichens, Lecanora conizaeoides"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","75"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Forstarchiv"],["dc.bibliographiccitation.lastpage","80"],["dc.bibliographiccitation.volume","84"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Jacob, Mascha"],["dc.contributor.author","Dittrich, Sebastian"],["dc.contributor.author","Bade, Claudia"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2017-09-07T11:50:52Z"],["dc.date.available","2017-09-07T11:50:52Z"],["dc.date.issued","2013"],["dc.description.abstract","Kurzfassung: Wirtschaftswälder unterscheiden sich grundlegend von Naturwäldern durch die Seltenheit von Bäumen jenseits des Umtriebsalters in der Alters- und Zerfallsphase sowie durch einen radikaleren Bruch der Bestandeskontinuität zwischen den aufeinanderfolgenden Waldgenerationen. Die natürliche Bestandesdynamik infolge altersbedingter Mortalität und externerr Störungen in vom Menschen nicht genutzten Wäldern führt zu einem heterogenen Muster von unterschiedlich großen Teilflächen unterschiedlicher Waldentwicklungsstadien und zur Bildung von Bestandeslücken. In Mitteleuropa sind Waldbestände, die zumindest seit mehreren Jahrhunderten einer natürlichen Bestandesdynamik ausgesetzt sind, äußerst selten. In einer Fallstudie im Harz (Deutschland) hatten wir die Gelegenheit, einen solchen Bestand zu untersuchen (Brockenurwald). Ziel der Untersuchung war die vergleichende Analyse der pflanzlichen Diversität (Bodenvegetation, Epiphyten) sowie ausgewählter Ökosystemeigenschaften (oberirdische Biomasse, ökosystemarer Kohlenstoffvorrat) in fünf altersabhängigen Waldentwicklungsphasen (Verjüngungs-, Aufwuchs-, Optimum-, Alters- und Zerfallsphase). Während sich die Bodenvegetation kaum zwischen den Entwicklungsstadien unterschied, war der Artenreichtum epiphytischer Moose und Flechten auf den stehenden Bäumen in der Alters- und insbesondere der Zerfallsphase signifikant größer als in den jüngeren Entwicklungsstadien, die auch im Wirtschaftswald vorkommen. Der Artenreichtum auf liegendem (aus der vorangegangenen Waldgeneration stammendem) Totholz war am höchsten in der Verjüngungs- und der Aufwuchsphase. Die oberirdische Biomasse und die Kohlenstoffvorräte waren in der Alters- und in der Zerfallsphase größer als in den anderen Waldentwicklungsstadien. Der Kohlenstoffvorrat im Boden war unabhängig vom Waldentwicklungsstadium konstant hoch. Unsere Ergebnisse unterstreichen die große Bedeutung der Alters- und Zerfallsphase und einer natürlichen Bestandesdynamik für die pflanzliche Diversität von Wäldern und für die Fähigkeit, große Vorräte an Kohlenstoff zu speichern."],["dc.identifier.gro","3147850"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5178"],["dc.language.iso","de"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.title","Natürliche Walddynamik und ihr Wert für Biodiversität und Ökosystemfunktionen"],["dc.title.subtitle","Ergebnisse einer Fallstudie aus dem Harz"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","18"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Environmental and Experimental Botany"],["dc.bibliographiccitation.lastpage","24"],["dc.bibliographiccitation.volume","66"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Nyambayar, Suran"],["dc.contributor.author","Bader, Martin"],["dc.contributor.author","Osokhjargal, Dalaikhuu"],["dc.contributor.author","Oyungerel, Shagjjav"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-11-07T08:30:59Z"],["dc.date.available","2018-11-07T08:30:59Z"],["dc.date.issued","2009"],["dc.description.abstract","Vegetation, soil conditions, age structure, water relations, light response of the chlorophyll fluorescence yield, and herbivore damage were studied in native savanna-like stands of Siberian elm (Ulmus pumila) on south-facing slopes in the mountain taiga of the western Khentey Mountains in northern Mongolia. These stands limited to the middle and lower parts of the slopes consist of single trees or small groups of trees of up to 5 m height. Parts of the tree crowns are characteristically dead. The stands have a marked shrub layer of, e.g.. small individuals of U. pumila as well as Spiraea aquilegifolia, Padus asiatica, and Ribes diacantha, and a diverse, but patchy ground vegetation. U. pumila is limited to loose, deep, stony soils on the slopes, which preferably occur near rock outcrops, mostly in contact to mountain steppe. Fine-grained, non-skeletal soils are avoided by U. pumila, but inhabited by meadow steppe. The preference for stony soils is attributable to the high water requirements of U. pumila. as rock cracks are known to form a reservoir for rain and dew water. The high demand for water is a partly a consequence of a low VPD sensitivity of the stomata regulation known for U. pumila. High transpiration rates may help U. pumila to avoid elevated leaf temperatures under high solar irradiation on the exposed steppe slopes. Increasing non-photochemical quenching at a PPFD > 2000 mu mol m(-2) s(-1) gives additional evidence of the good adaptation of U. pumila to sunlit environments. Minimum shoot water potentials far above the point of zero turgor throughout the growing season suggest sufficient water supply in summer in years with average rainfall. Literature data indicate that U. pumila can also suffer lethal damage on the rocky slopes during exceptionally dry summers. Insect herbivory was of subordinate significance for the elm trees. Therefore, desiccation is thought to be the main cause of the frequent occurrence of dead crown parts and the early death of the elm trees on the sun-exposed slopes. Mean age of the sample trees was as low as 17 years. At this age, the trees are not fertile, but proliferate vegetatively. The low lifespan of U. pumila on the sun-exposed slopes suggests that these slopes are a suboptimal habitat for this tree species. The dependence on loose, stony soils alone explains the irregular distribution of U. pumila on the sun-exposed slopes and rules out the formation of closed elm forest at these sites. (c) 2009 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.envexpbot.2008.12.020"],["dc.identifier.isi","000265127100003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/17020"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0098-8472"],["dc.title","Performance of Siberian elm (Ulmus pumila) on steppe slopes of the northern Mongolian mountain taiga: Drought stress and herbivory in mature trees"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["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.firstpage","560"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Ecosystems"],["dc.bibliographiccitation.lastpage","572"],["dc.bibliographiccitation.volume","18"],["dc.contributor.author","Zimmermann, Jorma"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-07-26T16:18:16Z"],["dc.date.available","2018-07-26T16:18:16Z"],["dc.date.issued","2015"],["dc.description.abstract","Climate warming is predicted to extend the duration and enhance the severity of summer droughts in Central Europe, which may pose a serious risk to forest productivity and forest health. Fagus sylvatica (European beech), the most abundant tree species of Central Europe’s natural forest vegetation and one of the key species in forestry, is thought to be particularly vulnerable to drought. Here, we present a dendrochronological analysis in three mixed temperate broad-leaved forests along a precipitation gradient with the aim of comparing the climatic response of radial growth of F. sylvatica with the performance of four co-existing species (Acer pseudoplatanus, A. platanoides, Quercus petraea, Fraxinus excelsior). We hypothesized that Fagus is the most drought sensitive of the five species, which implies that it could lose its competitive advantage at drier sites in the course of climate warming. In support of this hypothesis, we found that F. sylvatica in all stands exhibited an increase in the number of negative pointer years and a decrease in radial increment in the driest stand since about 1980, in parallel to increasing summer temperatures and drought intensity. Such a response was missing in the other four species and may point to shifts in the competitive hierarchy in these mixed forests under a future warmer climate. We conclude that Central Europe’s forestry sector should consider carefully the risk of failure of beech in regions with relatively low and decreasing summer precipitation."],["dc.identifier.doi","10.1007/s10021-015-9849-x"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15200"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Climate Warming-Related Growth Decline Affects Fagus sylvatica, But Not Other Broad-Leaved Tree Species in Central European Mixed Forests"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","132"],["dc.bibliographiccitation.journal","Environmental Pollution"],["dc.bibliographiccitation.lastpage","141"],["dc.bibliographiccitation.volume","164"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Zimmermann, Jorma"],["dc.contributor.author","Jacob, Mascha"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Bade, Claudia"],["dc.contributor.author","Ahrends, Bernd"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-11-07T09:10:55Z"],["dc.date.available","2018-11-07T09:10:55Z"],["dc.date.issued","2012"],["dc.description.abstract","Tree-ring width of Picea abies was studied along an altitudinal gradient in the Harz Mountains, Germany, in an area heavily affected by SO2-related forest decline in the second half of the 20th century. Spruce trees of exposed high-elevation forests had earlier been shown to have reduced radial growth at high atmospheric SO2 levels. After the recent reduction of the SO2 load due to clean air acts, we tested the hypothesis that stem growth recovered rapidly from the SO2 impact. Our results from two formerly damaged high-elevation spruce stands support this hypothesis suggesting that the former SO2-related spruce decline was primarily due to foliar damage and not to soil acidification, as the deacidification of the (still acidic) soil would cause a slow growth response. Increasing temperatures and deposited N accumulated in the topsoil are likely additional growth-promoting factors of spruce at high elevations after the shortfall of SO2 pollution. (C) 2012 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.envpol.2012.01.026"],["dc.identifier.isi","000302971400020"],["dc.identifier.pmid","22361051"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26600"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Sci Ltd"],["dc.relation.eissn","1873-6424"],["dc.relation.issn","0269-7491"],["dc.title","Rapid recovery of stem increment in Norway spruce at reduced SO2 levels in the Harz Mountains, Germany"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","207"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Dendrochronologia"],["dc.bibliographiccitation.lastpage","213"],["dc.bibliographiccitation.volume","28"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Leuschner, Hanns Hubert"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-11-07T08:47:31Z"],["dc.date.available","2018-11-07T08:47:31Z"],["dc.date.issued","2010"],["dc.description.abstract","Effects of a gypsy moth attack on the productivity of Larix sibirica on tree-ring width were analyzed in a case study of a mountain site in the western Khentey in the northern Mongolian forest-steppe ecotone. A major aim of the study was to assess whether reduced productivity by gypsy moth herbivory could contribute to fluctuations of the forest edge to the steppe in larch-dominated woodlands. In the year of the infestation, larch trees at the forest edge lost 90% of their needles and latewood formation was strongly reduced. However, earlywood formation was widely completed before the gypsy moth attack and, therefore, total tree-ring width was not below the average of the five years prior to infestation. In the two years following the gypsy moth invasion, annual stem increment was strongly reduced. Trees growing 30-100 m inside the forest showed a much weaker response of tree-ring widths to the gypsy moth infestation consistent with significantly higher defoliation at forest edge than in the forest interior. Old trees exhibited a stronger growth decline than middle-aged trees, indicating higher infestation of dominant, exposed trees, which are thought to be better accessible to the wind-dispersed gypsy moth larvae hatching in the early growing season on the steppe. Under the current climate, occasional growth reductions are thought to be of little effect on the performance of L. sibirica, as fast-growing competitors of other tree species, which are not or hardly affected by gypsy moth, are absent. (C) 2010 Istituto Italiano di Dendrocronologia. Published by Elsevier GmbH. All rights reserved."],["dc.identifier.doi","10.1016/j.dendro.2009.05.007"],["dc.identifier.isi","000283756500001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20976"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Gmbh, Urban & Fischer Verlag"],["dc.relation.issn","1125-7865"],["dc.title","Gypsy moth-induced growth decline of Larix sibirica in a forest-steppe ecotone"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]