Schaefer, Matthias

[["dc.bibliographiccitation.firstpage","S61"],["dc.bibliographiccitation.journal","European Journal of Soil Biology"],["dc.bibliographiccitation.lastpage","S67"],["dc.bibliographiccitation.volume","43"],["dc.contributor.author","Cesarz, Simone"],["dc.contributor.author","Fahrenholz, Nadine"],["dc.contributor.author","Migge-Kleian, Sonja"],["dc.contributor.author","Platner, Christian"],["dc.contributor.author","Schaefer, Matthias"],["dc.date.accessioned","2018-11-07T10:56:32Z"],["dc.date.available","2018-11-07T10:56:32Z"],["dc.date.issued","2007"],["dc.description.abstract","The understanding of belowground biodiversity is still rather incomplete and interactions between above- and belowground systems have rarely been looked at when explaining belowground biodiversity patterns. The present study presents results of the influence of tree species diversity on the earthworm community in a central European deciduous mixed forest. Within the Hainich National Park three replicate sites were chosen within three levels of tree diversity ranging from one species (beech, DL1) to three species (beech, lime, ash, DL2) to five species stands (beech, lime, ash, hornbeam, maple, DL3). Earthworms were extracted by heat from soil and litter samples at four sampling dates at each site. In addition, in spring four samples per site were sorted by hand and identified to species level. Generally, earthworm densities were positively correlated with tree diversity in May and November but negatively in February. Sites with low tree species diversity had earthworm populations which were more stable due to a more permanent and deeper litter layer. Increasing proportions of high quality litter in DL2 und DL3 were correlated with higher densities of both epigeic and endogeic earthworm species, while litter in DL1 sites was mainly inhabited by epigeic species. Generally, there was a positive correlation between earthworm and tree species diversity indicating the importance of diverse food qualities for the decomposer fauna at the local scale especially in springtime. (C) 2007 Elsevier Masson SAS. All rights reserved."],["dc.identifier.doi","10.1016/j.ejsobi.2007.08.003"],["dc.identifier.isi","000251803300012"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50035"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier France-editions Scientifiques Medicales Elsevier"],["dc.publisher.place","Paris"],["dc.relation.conference","8th International Symposium on Earthworm Ecology (ISEE8)"],["dc.relation.eventlocation","Cracow, POLAND"],["dc.relation.issn","1164-5563"],["dc.title","Earthworm communities in relation to tree diversity in a deciduous forest"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","418"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Oikos"],["dc.bibliographiccitation.lastpage","426"],["dc.bibliographiccitation.volume","120"],["dc.contributor.author","Sanders, Dirk"],["dc.contributor.author","Schaefer, Matthias"],["dc.contributor.author","Platner, Christian"],["dc.contributor.author","Griffi, Georgianne J. K."],["dc.date.accessioned","2018-11-07T08:58:52Z"],["dc.date.available","2018-11-07T08:58:52Z"],["dc.date.issued","2011"],["dc.description.abstract","We found no positive effect of increasing predator functional group richness on prey control. However there was evidence for strong composition effects between the functional groups. The presence of ants in predator assemblages reduced the prey suppression through mostly trait-mediated intraguild interactions, while hunting and web-building spiders contributed additively to prey suppression and reduced the density of herbivore and decomposer prey by 50-60%. A trophic cascade on plant biomass triggered by web-builders and hunting spiders was diminished at levels of higher predator group diversity. In conclusion, our experiments showed that intraguild interactions strongly influence the strength of top-down control by generalist predators. Among spiders there was evidence for a positive relation between functional group richness and prey suppression but the overall outcome strongly depended on the occurrence of interference, driven by trait-mediated indirect interactions."],["dc.description.sponsorship","German research foundation (DFG)"],["dc.identifier.doi","10.1111/j.1600-0706.2010.18924.x"],["dc.identifier.isi","000287531500012"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23748"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","0030-1299"],["dc.title","Intraguild interactions among generalist predator functional groups drive impact on herbivore and decomposer prey"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2122"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Soil Biology and Biochemistry"],["dc.bibliographiccitation.lastpage","2130"],["dc.bibliographiccitation.volume","41"],["dc.contributor.author","Jacob, Mascha"],["dc.contributor.author","Weland, Nadine"],["dc.contributor.author","Platner, Christian"],["dc.contributor.author","Schaefer, Matthias"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Thomas, Frank M."],["dc.date.accessioned","2018-11-07T11:24:06Z"],["dc.date.available","2018-11-07T11:24:06Z"],["dc.date.issued","2009"],["dc.description.abstract","In the litter of six deciduous tree species (Fagus sylvatica, Tilia spp., Fraxinus excelsior, Carpinus betulus, Acer pseudoplatanus and Acer platanoides) and in stand-specific litter mixtures, we compared mass loss and nutrient release across diversity levels along a gradient of decreasing proportion of Fagus in stands with similar environmental and physical soil conditions. The litterbag studies ran over 22 months. The decomposition rate constants (k) of the temperate forest species ranged from k = 0.5 for Fagus to k = 1.5-2 for all other tree species. In Fagus, k was closely negatively correlated with the thickness of the litter layer and positively correlated with soil pH and isopod abundance. k was significantly higher in the mixed species stands (except for Carpinus and Fraxinus) and was positively correlated with earthworm abundance. Over the whole incubation time, nutrient amount and release rates of N, P, K, Ca and Mg as well as C-related ratios showed significant differences between tree species but no consistent differences among the diversity levels. Initial C-related nutrient ratios of the leaf litter and abundance of mesofauna and macrofauna were correlated with the length of time lag before nutrient release. We conclude that the mere number of tree species is not the main driver of nutrient release and decomposition processes, but that key groups of the decomposer fauna as well as the characteristic traits of the individual tree species are decisive. (C) 2009 Elsevier Ltd. All rights reserved."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft (DFG) [1086]"],["dc.identifier.doi","10.1016/j.soilbio.2009.07.024"],["dc.identifier.isi","000271047800014"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/56330"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0038-0717"],["dc.title","Nutrient release from decomposing leaf litter of temperate deciduous forest trees along a gradient of increasing tree species diversity"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1267"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Biodiversity and Conservation"],["dc.bibliographiccitation.lastpage","1284"],["dc.bibliographiccitation.volume","17"],["dc.contributor.author","Schuldt, Andreas"],["dc.contributor.author","Fahrenholz, Nadine"],["dc.contributor.author","Brauns, Mascha"],["dc.contributor.author","Migge-Kleian, Sonja"],["dc.contributor.author","Platner, Christian"],["dc.contributor.author","Schaefer, Matthias"],["dc.date.accessioned","2018-11-07T11:15:20Z"],["dc.date.available","2018-11-07T11:15:20Z"],["dc.date.issued","2008"],["dc.description.abstract","The relationships between species diversity and ecosystem functions are in the focus of recent ecological research. However, until now the influence of species diversity on ecosystem processes such as decomposition or mineral cycling is not well understood. In deciduous forests, spiders are an integral part of the forest floor food web. In the present study, patterns of spider diversity and community structure are related to diversity of deciduous forest stands in the Hainich National Park (Thuringia). In 2005, pitfall trapping and quantitative forest floor sampling were conducted in nine plots of forest stands with one (Diversity Level 1), three (DL 2) and five (DL 3) major deciduous tree species. Species richness, measured with both methods, as well as spider abundance in forest floor samples were highest in stands with medium diversity (DL 2) and lowest in pure beech stands (DL 1). The Shannon-Wiener index and spider numbers in pitfall traps decreased from DL 1 to DL 3, while the Shannon-Wiener index in forest floor samples increased in the opposite direction. Spider community composition differed more strongly between single plots than between diversity levels. Altogether, no general relationship between increasing tree species diversity and patterns of diversity and abundance in spider communities was found. It appears that there is a strong influence of single tree species dominating a forest stand and modifying structural habitat characteristics such as litter depth and herb cover which are important for ground-living spiders."],["dc.identifier.doi","10.1007/s10531-008-9330-7"],["dc.identifier.isi","000255998100019"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6793"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/54344"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0960-3115"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Communities of ground-living spiders in deciduous forests: Does tree species diversity matter?"],["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"]]