@article{TischewDierschkeSchwabeetal.2018,
  author    = {Tischew, Sabine and Dierschke, Hartmut and Schwabe, Angelika and Garve, Eckhard and Heinken, Thilo and Holzel, Norbert and Bergmeier, Erwin and Remy, Dominique and Haerdtle, Werner},
  title     = {Pflanzengesellschaft des Jahres 2019: Die Glatthaferwiese},
  series = {Tuexenia : Mitteilungen der Floristisch-Soziologischen Arbeitsgemeinschaft},
  journal   = {Tuexenia : Mitteilungen der Floristisch-Soziologischen Arbeitsgemeinschaft},
  number    = {38},
  publisher = {Floristisch-Soziologische Arbeitsgemeinschaft},
  address   = {G{\"o}ttingen},
  issn      = {0722-494X},
  doi       = {10.14471/2018.38.011},
  pages     = {287 -- 295},
  year      = {2018},
  abstract  = {Um Themen des Schutzes von Pflanzengemeinschaften wirksamer in der breiten {\"O}ffentlichkeit zu kommunizieren wird der Vorstand der „Floristisch-Soziologischen Arbeitsgemeinschaft (FlorSoz)" ab 2019 eine „Pflanzengesellschaft des Jahres" ausrufen. Damit sollen politische und administrative Entscheidungs- und Umsetzungsprozesse zur Erhaltung der Vielfalt von {\"O}kosystemen und Pflanzengesellschaften in Deutschlands gezielt unterst{\"u}tzt werden. F{\"u}r das Jahr 2019 wurde die Glatthaferwiese ausgew{\"a}hlt. Sie z{\"a}hlt aktuell zu den durch Artenverarmung und Fl{\"a}chenr{\"u}ckgang besonders bedrohten Pflanzengesellschaften Deutschlands. Es sind deshalb dringend Maßnahmen zum Schutz und zur Wiederherstellung notwendig. Dieser Artikel gibt einen kurzen {\"U}berblick zur naturschutzfachlichen Bedeutung von Glatthaferwiesen und deren {\"O}kosystemleistungen sowie zur floristisch-soziologischen Erforschung, zu Ursachen ihres R{\"u}ckgangs und zu geeigneten Gegenmaßnahmen.},
  language  = {de}
}
@article{MaesBlondeelPerringetal.2019,
  author    = {Maes, Sybryn L. and Blondeel, Haben and Perring, Michael P. and Depauw, Leen and Brumelis, Guntis and Brunet, J{\"o}rg and Decocq, Guillaume and den Ouden, Jan and Haerdtle, Werner and Hedl, Radim and Heinken, Thilo and Heinrichs, Steffi and Jaroszewicz, Bogdan and Kirby, Keith J. and Kopecky, Martin and Malis, Frantisek and Wulf, Monika and Verheyen, Kris},
  title     = {Litter quality, land-use history, and nitrogen deposition effects on topsoil conditions across European temperate deciduous forests},
  series = {Forest ecology and management},
  volume    = {433},
  journal   = {Forest ecology and management},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0378-1127},
  doi       = {10.1016/j.foreco.2018.10.056},
  pages     = {405 -- 418},
  year      = {2019},
  abstract  = {Topsoil conditions in temperate forests are influenced by several soil-forming factors, such as canopy composition (e.g. through litter quality), land-use history, atmospheric deposition, and the parent material. Many studies have evaluated the effects of single factors on physicochemical topsoil conditions, but few have assessed the simultaneous effects of multiple drivers. Here, we evaluate the combined effects of litter quality, land-use history (past land cover as well as past forest management), and atmospheric deposition on several physicochemical topsoil conditions of European temperate deciduous forest soils: bulk density, proportion of exchangeable base cations, carbon/nitrogen-ratio (C/N), litter mass, bio-available and total phosphorus, pH(KCI)and soil organic matter. We collected mineral soil and litter layer samples, and measured site characteristics for 190 20 x 20 m European mixed forest plots across gradients of litter quality (derived from the canopy species composition) and atmospheric deposition, and for different categories of past land cover and past forest management. We accounted for the effects of parent material on topsoil conditions by clustering our plots into three soil type groups based on texture and carbonate concentration. We found that litter quality was a stronger driver of topsoil conditions compared to land-use history or atmospheric deposition, while the soil type also affected several topsoil conditions here. Plots with higher litter quality had soils with a higher proportion of exchangeable base cations, and total phosphorus, and lower C/N-ratios and litter mass. Furthermore, the observed litter quality effects on the topsoil were independent from the regional nitrogen deposition or the soil type, although the soil type likely (co)-determined canopy composition and thus litter quality to some extent in the investigated plots. Litter quality effects on topsoil phosphorus concentrations did interact with past land cover, highlighting the need to consider land-use history when evaluating canopy effects on soil conditions. We conclude that forest managers can use the canopy composition as an important tool for influencing topsoil conditions, although soil type remains an important factor to consider.},
  language  = {en}
}
@article{KrauseBuseMaternetal.2011,
  author    = {Krause, Rolf Harald and Buse, Joern and Matern, Andrea and Schroeder, Boris and Haerdtle, Werner and Assmann, Thorsten},
  title     = {Eresus kollari (Araneae: Eresidae) calls for heathland management},
  series = {The Journal of arachnology},
  volume    = {39},
  journal   = {The Journal of arachnology},
  number    = {3},
  publisher = {American Arachnological Society},
  address   = {College Park},
  issn      = {0161-8202},
  pages     = {384 -- 392},
  year      = {2011},
  abstract  = {Northwest Europe's largest heather-dominated sandy habitats are located in the nature reserve Luneburger Heide, Germany. Yet, even these appear to be losing their ability to support some of their stenotopic species such as the ladybird spider, Eresus kollari Rossi 1846, and are thus becoming increasingly important for the preservation of these species. The habitat requirements of this endangered spider species were investigated in order to obtain data that will help stabilize the last remnants of the species' population in northwest Germany. Several heathland habitats were surveyed by pitfall trapping during the mate-search period of the males. Two statistical methods were applied: logistic regression and boosted regression trees (BRT). Both methods showed that three habitat variables are of prime relevance in predicting the occurrence of E. kollari: a) thickness of the organic layer (a negative effect), b) soil temperature at a depth of 10 cm, and c) Calluna cover in the herb layer (both have positive effect). Our results show that choppering (removing above-ground biomass and most of O-layer) and burning are likely appropriate heathland management measures for the conservation of E. kollari. Such measures improve the species' habitat quality by creating a heterogenic (small-scaled) heathland structure with suitable microhabitats. As Calluna heathlands show a clear senescence of the dominant heather, it is essential that those habitat patches be conserved. Further measures, such as transfer experiments, are recommended.},
  language  = {en}
}