@article{BurkartBurkartGaertneretal.2002,
  author    = {Burkart, Bettina and Burkart, Michael and G{\"a}rtner, P. and Heyne, K. and Katscher, Kathleen and Prochnow, Annette and Segert, Astrid and Siniza, Swetlana and Striese, Michael and Tsch{\"o}pe, Okka and Konold, Werner},
  title     = {Offenhaltung durch Beweidung mit Wildtieren},
  year      = {2002},
  language  = {de}
}
@phdthesis{Burkart1998,
  author    = {Burkart, Michael},
  title     = {Die Gr{\"u}nlandvegetation der unteren Havelaue in syn{\"o}kologischer und syntaxonomischer Sicht},
  series = {Archiv naturwissenschaftlicher Dissertationen},
  volume    = {7},
  journal   = {Archiv naturwissenschaftlicher Dissertationen},
  publisher = {Galunder},
  address   = {Wiehl},
  isbn      = {3-931251-41-1},
  pages     = {[18], 157, A102 S. : graph. Darst., Kt.-Beil.},
  year      = {1998},
  language  = {de}
}
@article{Burkart1997,
  author    = {Burkart, Michael},
  title     = {Einige bemerkenswerte Pflanzenfunde im Gebiet der unteren Havel aus den Jahren 1995 und 1996},
  year      = {1997},
  language  = {de}
}
@article{Burkart1996,
  author    = {Burkart, Michael},
  title     = {Juncus atratus in Nordostdeutschland},
  address   = {Berlin},
  year      = {1996},
  language  = {en}
}
@article{Burkart1997,
  author    = {Burkart, Michael},
  title     = {Kalkmagerrasen und Glatthaferwiesen im Unteren Werraland},
  year      = {1997},
  language  = {de}
}
@article{Burkart2000,
  author    = {Burkart, Michael},
  title     = {Artemisia frigida in der nordwestlichen Mongolei : Merkmale und Standorte von drei unterschiedlichen Sippen},
  year      = {2000},
  language  = {de}
}
@article{Burkart2001,
  author    = {Burkart, Michael},
  title     = {River corridor plants (Stromtalpflanzen) in Central European lowland : a review of a poorly understood plant distribution pattern},
  year      = {2001},
  abstract  = {Aim and Location In Central European lowland certain plant species grow mainly or exclusively in the corridors of large rivers. In German-speaking plant geography, they are known as "Stromtalpflanzen". The aim of this paper is to review the literature about definitions, explanations and species characteristics and to suggest future directions in research concerning this species group. Results A preliminary list contains 129 ecologically heterogeneous plant species. The mechanisms generating the peculiar distribution pattern may include hydrochory along river corridors, high level of disturbance by water, variable water availability including inundation and summer drought, warm summers, and high nutrient supply on alluvial soils. There is evidence from observational studies for all above mechanisms. However, none of them has been tested experimentally. Demographic data of river corridor plants is limited to very few species, including mainly invasive annuals (Artemisia annua, Bidens frondosa, Cuscuta campestris, Xanthium albinum) and annual (hemi)parasites (Cuscuta campestris, Melampyrum cristatum). Metapopulation studies do not exist to date for European species. part from their habitat requirements, river corridor plants were grouped according to their similarities in overall distribution pattern or in their distribution within particular river corridors. Main conclusions River corridor plants include a high proportion of threatened plant species. In order to preserve them, and in order to understand the mechanisms generating the peculiar distribution pattern, much more has to be known about their population biology and metapopulation dynamics.},
  language  = {en}
}
@article{BurkartAlslebenLachmuthetal.2010,
  author    = {Burkart, Michael and Alsleben, Katja and Lachmuth, Susanne and Schumacher, Juliane and Hofmann, Ralf and Jeltsch, Florian and Schurr, Frank Martin},
  title     = {Recruitment requirements of the rare and threatened Juncus atratus},
  issn      = {0367-2530},
  doi       = {10.1016/j.flora.2009.08.003},
  year      = {2010},
  abstract  = {The long-term persistence of populations and species depends on the successful recruitment of individuals. The generative recruitment of plants may be limited by a lack of suitable germination and establishment conditions. Establishment limitation may especially be caused by the competitive effect of surrounding dense vegetation, which is believed to restrict the recruitment success of many plant species to small open patches ('safe sites'). We conducted experiments to clarify the roles of germination and seedling establishment as limiting processes in the recruitment of Juncus atratus Krock., a rare and threatened herbaceous perennial river corridor plant in Central Europe. Light intensity had a positive effect on germination. However, some seedlings emerged even in total darkness and the germination rate at 1\% light intensity was more than half of that at 60\% light intensity. Seedling establishment in the field after 10 weeks was 30\% on bare ground, but it was close to zero in grassland. Establishment in the growth chamber after 8 weeks was close to 75\% for seedlings that germinated underwater, but only about 35\% for seedlings that germinated afloat. Furthermore, establishment decreased with flooding duration on bare ground, but increased with flooding duration in grassland. These data indicate that establishment, rather than germination, is a critical life stage in Central European populations off. atratus. They furthermore indicate that the competition of surrounding vegetation for water limits seedling establishment under field conditions without flooding, largely restricting establishment success to bare ground habitats. In contrast, grassland is more suitable for the recruitment off. atratus than bare ground under prolonged flooding. Grassland may facilitate the establishment off. atratus seedlings during long- lasting floods by supplying oxygen to the soil through aerenchyma. The shift from competition to facilitation in grassland occurred after 30 days of flooding, i.e. within the ontogeny of individual plants. The specific recruitment requirements off. arrows may be a main cause of its rarity in modern Central Europe. In order to prevent regional extinction off. atratus, we suggest maintaining or re-establishing natural hydrodynamics in the species' habitats.},
  language  = {en}
}
@book{BurkartDierschkeHoelzeletal.2004,
  author    = {Burkart, Michael and Dierschke, Hartmut and H{\"o}lzel, Norbert and Nowak, Bernd and Fartmann, Thomas},
  title     = {Molinio-Arrhenatheretea = Kulturgrasland und verwandte Vegetationstypen. Teil 2: Molinietalia},
  series = {Synopsis der Pflanzengesellschaften Deutschlands},
  volume    = {9},
  journal   = {Synopsis der Pflanzengesellschaften Deutschlands},
  publisher = {Selbstverl. der Floristisch-Soziologischen Arbeitsgemeinschaft},
  address   = {G{\"o}ttingen},
  issn      = {1433-8440},
  pages     = {103 S.},
  year      = {2004},
  language  = {de}
}
@article{BurkartHinrichsenKuehlingetal.2004,
  author    = {Burkart, Michael and Hinrichsen, Arne and K{\"u}hling, Matthias and Oehlschl{\"a}ger, Susanne and Wallschl{\"a}ger, Hans-Dieter and Wiegleb, Gerhard and Wolters, Steffen},
  title     = {Einf{\"u}hrung : Offene Sandlandschaften Mitteleuropas ; Truppen{\"u}bungspl{\"a}tze und Naturschutz},
  isbn      = {3-540-22449-1},
  year      = {2004},
  language  = {de}
}