ORCID Profile
0000-0002-4417-5633
Current Organisation
University of Tübingen
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Publisher: Springer Science and Business Media LLC
Date: 14-06-2019
DOI: 10.1038/S41598-019-45156-5
Abstract: Soil properties and terrain attributes are of great interest to explain and model plant productivity and community assembly (hereafter P& CA). Many studies only s le surface soils, and may therefore miss important variation of deeper soil levels. We aimed to identify a critical soil depth in which the relationships between soil properties and P& CA were strongest due to an ideal interplay among soil properties and terrain attributes. On 27 plots in a subtropical Chinese forest varying in tree and herb layer species richness and tree productivity, 29 soil properties in six depth columns and four terrain attributes were analyzed. Soil properties varied with soil depth as did their interrelationships. Non-linearity of soil properties led to critical soil depths in which different P& CA characteristics were explained best (using coefficients of determination). The strongest relationship of soil properties and terrain attributes to most of P& CA characteristics (adj. R 2 ~ 0.7) was encountered using a soil column of 0–16 cm. Thus, depending on the biological signal one is interested in, soil depth s ling has to be adapted. Considering P& CA in subtropical broad-leaved secondary forests, we recommend s ling one bulk s le of a column from 0 cm down to a critical soil depth of 16 cm.
Publisher: American Association for the Advancement of Science (AAAS)
Date: 05-10-2018
Abstract: Bio ersity experiments have shown that species loss reduces ecosystem functioning in grassland. To test whether this result can be extrapolated to forests, the main contributors to terrestrial primary productivity, requires large-scale experiments. We manipulated tree species richness by planting more than 150,000 trees in plots with 1 to 16 species. Simulating multiple extinction scenarios, we found that richness strongly increased stand-level productivity. After 8 years, 16-species mixtures had accumulated over twice the amount of carbon found in average monocultures and similar amounts as those of two commercial monocultures. Species richness effects were strongly associated with functional and phylogenetic ersity. A shrub addition treatment reduced tree productivity, but this reduction was smaller at high shrub species richness. Our results encourage multispecies afforestation strategies to restore bio ersity and mitigate climate change.
Publisher: Springer Science and Business Media LLC
Date: 05-04-2012
Publisher: Elsevier BV
Date: 12-2016
Publisher: Wiley
Date: 22-11-2013
Publisher: Wiley
Date: 09-10-2015
DOI: 10.1111/NPH.13068
Abstract: Environmental selection and dispersal limitation are two of the primary processes structuring biotic communities in ecosystems, but little is known about these processes in shaping soil microbial communities during secondary forest succession. We examined the communities of ectomycorrhizal ( EM ) fungi in young, intermediate and old forests in a C hinese subtropical ecosystem, using 454 pyrosequencing. The EM fungal community consisted of 393 operational taxonomic units ( OTU s), belonging to 21 EM fungal lineages, in which three EM fungal lineages and 11 EM fungal OTU s showed significantly biased occurrence among the young, intermediate and old forests. The EM fungal community was structured by environmental selection and dispersal limitation in old forest, but only by environmental selection in young, intermediate, and whole forests. Furthermore, the EM fungal community was affected by different factors in the different forest successional stages, and the importance of these factors in structuring EM fungal community dramatically decreased along the secondary forest succession series. This study suggests that different assembly mechanisms operate on the EM fungal community at different stages in secondary subtropical forest succession.
Publisher: Wiley
Date: 27-07-2011
Publisher: Wiley
Date: 02-2011
DOI: 10.1890/09-2172.1
Publisher: Wiley
Date: 06-11-2017
DOI: 10.1002/ECE3.3488
Publisher: American Society for Microbiology
Date: 07-2015
DOI: 10.1128/CMR.00134-14
Abstract: Staphylococcus aureus is a major human pathogen that causes a wide range of clinical infections. It is a leading cause of bacteremia and infective endocarditis as well as osteoarticular, skin and soft tissue, pleuropulmonary, and device-related infections. This review comprehensively covers the epidemiology, pathophysiology, clinical manifestations, and management of each of these clinical entities. The past 2 decades have witnessed two clear shifts in the epidemiology of S. aureus infections: first, a growing number of health care-associated infections, particularly seen in infective endocarditis and prosthetic device infections, and second, an epidemic of community-associated skin and soft tissue infections driven by strains with certain virulence factors and resistance to β-lactam antibiotics. In reviewing the literature to support management strategies for these clinical manifestations, we also highlight the paucity of high-quality evidence for many key clinical questions.
No related grants have been discovered for Peter Kühn.