155 Works

River corridor plants in North-western Germany are threatened by small population size and short-term environmental events

Christina Wärner, Werner Wosniok & Martin Diekmann
River corridor plants in Central Europe account for an above-average proportion of endangered species. The main objective of this study was to examine the effects of habitat fragmentation and abiotic conditions on the survival and changes in population size of four endangered, long-lived river corridor plant species (Euphorbia palustris, Pseudolysimachion longifolium, Sanguisorba officinalis, and Senecio paludosus) over the course of at least ten years. We sampled altogether 138 populations in the Weser and Elbe river...

Zusammenhänge zwischen Pflanzenartenzusammen-setzung, Phytodiversität und Bodenvariablen in Nieder-mooren und verwandten Habitattypen Luxemburgs

Hannes Hollenbach, Simone Schneider & Carsten Eichberg
In Luxembourg, as a consequence of land use intensification, there are only few relicts of nutrient-poor wetland habitats with a high conservation value left. Up to now, a small-scale spatial analysis of the relationships between soil factors and vegetation has not been published for these relicts. For this reason, we assessed vegetation composition, vegetation structure (90% percentile of the vegetation height, litter cover), soil variables relevant for plant nutrition (pH value, contents of phosphorous, potassium,...

Beitrag zur Kenntnis der Waldgesellschaften im Saarland (Deutschland)

Andreas Bettinger
The study provides a comprehensive description of floristically defined forest plant communities of the Saarland, a federal state of Germany. The focus is on the alliances Carpinion betuli, Tilio platyphylli-Acerion pseudoplatani, Fagion sylvaticae and the Deschampsio flexuosae-Fagion. Quer-cion robori-petraeae and Quercion pubescenti-petraeae are preliminarily treated, yet, there is still need for further investigations of their floristical and sociological status. The analysis is based on 539 plots following the Braun-Blanquet method, partly surveyed by Dr. Erhard...

Grasslands in the border area of Carpathian and Pannonian regions: an example from Muránska planina Mts (Central Slovakia)

Judita Kochjarová, Iveta Škodová & Drahoš Blanár
Muránska planina Mts, a small karstic area situated in the southern part of the Western Carpathians in Central Slovakia was chosen as a model region for the study of the variability and diversity patterns of thermophilous and mountain non-forest vegetation on the crossing of the Carpathian and Pannonian bioregions. Altogether, 113 new relevés were sampled using standard methods of the Zürich-Montpellier approach and compared with previously published data. The dataset containing both new and published...

Restoration of a newly created inland-dune complex as a model in practice: impact of substrate, minimized inoculation and grazing

Linda Freund, Jimena Carrillo, Christian Storm & Angelika Schwabe
In Central Europe stands of the Koelerion glaucae vegetation complex are threatened and mostly highly fragmented. Knowledge about the impact of abiotic and biotic measures to restore this vegetation complex is crucial. Therefore, an inland sand dune complex (around 2 ha) was created in 2009 as a study model in the Upper Rhine Valley (Germany), which included sites with different substrate conditions as well as grazing impact and minimized inoculation with plant material. The restoration...

Demography of the alpine pioneer species Saxifraga aizoides in different successional stages at the glacier fore-land of the Rotmoosferner (Obergurgl, Ötztal, Austria)

Eckart Winkler, Silvia Marcante & Brigitta Erschbamer
The demography of the alpine pioneer species Saxifraga aizoides was investigated along a successional gradient at the Rotmoos glacier foreland (2,330–2,450 m a.s.l., Obergurgl, Ötztal, Austria) from recently deglaciated areas to advanced successional stages. A basic hypothesis of our study was that fecundity might play an essential role for population growth rate on the youngest site and become of minor importance at advanced successional stages. A matrix modelling approach was performed to calculate the main...

Using relevé-based metrics to explain invasion patterns of alien trees in temperate forests

Christian Berg, Anton Drescher & Franz Essl
Central European temperate forests are – with the exception of floodplain forests – relatively little invaded by alien plants. However, despite substantial recent progress, there is still a lack of using vegetation plot data for analyzing spatio-temporal patterns of alien tree species invasions. We calculated relevé-based metrics of tree species’ ecological preferences using 19,413 phytosociological forest relevés of the Austrian vegetation database. We focused on the five most widely distributed alien trees, i.e. two archaeophytes...

Habitat and management preference of Bromus racemosus L., a rare species in mesic meadows of Northwest Europe

Max R. Simmelink, John A.M. Janssen, Joop H.J. Schaminée & Eddy J. Weeda
Bromus racemosus L. is a rather rare grass species of moist meadows. It has strongly decreased in the course of the 20th century due to intensification of agricultural grassland management, and is therefore included in Red Lists of several European countries. Its winter annual life-cycle is remarkable for a species of permanent grasslands. The aim of this study is to determine the habitat preference and optimal management of B. racemosus in the Netherlands and surrounding...

The influence of the Eastern migration route on the Slo-vak flora – a comparison after 40 years

Vladimír Jehlík, Marica Zaliberová & Jana Májeková
Transport is an important source of introduction and spread of alien plants into new areas and countries. This study provides comprehensive research of selected railway localities in South-Eastern Slovakia to determine the influence of the Eastern Migration Route on the Slovak flora. Railway trans-shipment yards in Čierna nad Tisou, Dobrá, Veľké Kapušany and Maťovce were studied from 1964 to 2013; with historic data sampled 1964–1998 and recent data sampled 2012–2013. These data sets were compared...

Evaluating the ornamental value of the Caucasian flora in Georgia

Katja Beisheim & Annette Otte
The flora in the Caucasus Ecoregion is rich in economically important plants. While its value in terms of food crops and medicinal plants has recently been subject to scientific research, the ornamental value of many Caucasian plant species has not yet been fully recognized. In order to assess the ornamental value of the Caucasian flora, vegetation data from two mountainous study regions in Georgia (n = 958 species, mostly grassland vegetation) was compared with the...

Significant ant pollination in two orchid species in the Alps as adaptation to the climate of the alpine zone?

Jean Claessens & Bernhard Seifert
Ants were shown to be significant pollinators of two orchid species in the alpine zone of the Alps. Repeated observations from several localities confirm the ant Formica lemani as pollinator of Chamorchis alpina whereas Formica exsecta is reported here for the first time as pollinator of Dactylorhiza viridis. These findings appear of great interest, as significant ant pollination of orchids is unknown so far from any other region or habitat type in the Holarctic. This...

Positive small-scale effects of shrubs on diversity and flowering in pastures

András Kelemen, Csaba Tölgyesi, Róbert Kun, Zsolt Molnár, Csaba Vadász & Katalin Tóth
Understanding plant-plant interactions is essential in planning and implementing effective grass-land management strategies. Positive and negative interactions generally co-occur in plant communities and the net effect of these interactions may depend on the disturbance regime, including grazing. Shrubs can act as biotic refuges by physically protecting neighbouring plants from herbivores. As a result, we would expect that in pastures the diversity and flowering success of plants is higher in the close vicinity of shrubs compared...

Simulation of long-term changes in environmental factors and grassland composition in three protected areas of Serbia

Dragana Čavlović, Jelena Beloica, Dragica Obratov-Petković, Vladimir Đurđević & Olivera Košanin
Intense direct and indirect human pressure has been imposed on grasslands throughout their range. Mostly due to the constant need for more food production or due to changes in environmental conditions, grasslands as habitats are expected to become highly endangered. The aim of this study was to estimate the grasslands’ ecological response to future climate and environmental changes. The study took place in three ecologically different grassland communities in three protected natural areas of Serbia...

Vegetation of limestone outcrops in Western and Central Podillia (Ukraine)

Yakiv P. Didukh & Yulia A. Vasheniak
This article characterises limestone outcrop vegetation. Such communities grow on limestone, chalk, gypsum and other kinds of rocks of the Devon and Paleogene period dispersed throughout Western and Central Podillia. The relief, geological structure, soil, distribution factors caused by climate, specificity and diversity of the communities and their particular floristic qualities are high-lighted. The history of phytocoenological investigations of limestone outcrop communities in Ukraine is also shown. Syntaxonomical and ecological assessments with critical analyses and...

Pflanzengesellschaft des Jahres 2019: Die Glatthaferwiese

Sabine Tischew, Hartmut Dierschke, Angelika Schwabe, Eckhard Garve, Thilo Heinken, Norbert Hölzel, Erwin Bergmeier, Dominique Remy & Werner Härdtle
Aiming at a better promotion of topics related to the conservation of ecosystems and plant com-munities, the board of the „Floristisch-Soziologische Arbeitsgemeinschaft (FlorSoz)” has launched the initiative to announce a “Plant Community of the Year”. Therewith we hope to raise awareness and stimulate civil society and politics in promoting more efficient conservation strategies. For the forthcoming year, we choose the oatgras meadow as Plant Community of the Year 2019. These lowland hay meadows belong to...

Open Access zu 13 500 europäischen Vegetationsaufnahmen aus dem Reinhold-Tüxen-Archiv

Friedemann Goral, Ansgar Hoppe & Erwin Bergmeier
About 13,500 phytosociological relevés (vegetation plot samples) of the Reinhold-Tüxen Archive at the Institute of Geobotany, Leibniz Universität Hannover, collected between 1925 and 1979, were digitalized in the years 2000–2003. These relevés come from 25 European countries and Canada, the geographical focus being in north-western Germany. However, due to the file format then used, the data have proved to be hardly accessible for vegetation scientists and have barely been used since. In an effort to...

Conservation, management and restoration of semi-natural and natural grasslands in Central Europe – Editorial to the 13th EDGG Special Feature

Balázs Deák, Thomas Becker, Steffen Boch & Viktoria Wagner

High resilience of plant species composition to coppice restoration – a chronosequence from the oak woodland of Gerolfing (Bavaria)

Jörg Ewald, Radim Hédl, Markéta Chudomelová, Petr Petřík, Jan Šipoš & Ondřej Vild
In the oak forest of Gerolfing (near Ingolstadt, Germany), regular coppicing has been reintro-duced after approximately 30 years of abandonment to enhance biodiversity and provide fuel to private households. Based on 42 vegetation plots in six strata (5-year harvesting intervals plus an untreated control) a chronosequence representing a full coppice cycle is studied using measurements of vegetation structure, light availability, topsoil chemistry and indicator species analysis. Coppicing triggers a succession in forest structure and radiation...

Phytosociological studies of Malus sylvestris in North Hesse and Upper Franconia, Germany

Helge Walentowski, Gregor Aas, Alexander Göllner, Lisa Ahl & Martin Feulner
Malus sylvestris the European crabapple, a rare and threatened small tree species, has attracted in-creasing interest since it was awarded tree of the year 2013 in Germany. In this study, we used the wide range of different habitats in Upper Franconia and North Hesse to reveal a more complete picture about its phytosociology and ecological behavior in these regions and to examine the main environmental factors which affect its distribution. We collected a data set...

Habitat preferences of the rare lizard-orchid Himantoglossum adriaticum H. Baumann

Judit Bódis, Éva Biró, Timea Nagy, Attila Takács, Attila Molnár V. & Balázs András Lukács
Himantoglossum adriaticum is a rare and in many countries endangered orchid species. It grows on calcareous soils in natural and semi-natural, dry and mesophilic grasslands or open woodlands and is restricted to a small region along the Adriatic coast and within Central and Southeastern Europe. We compiled phytosociological relevés (n = 84) covering the whole distribution range to investigate its habitat preferences and collected soil samples from 41 relevés to determine various soil parameters. We...

Soil seed bank and above-ground vegetation changes during grassland succession: Is space-for-time substitution an alternative to re-sampling?

Silvia Bittnerová, Karol Ujházy, Katarína Hegedüšová, Iveta Škodová, Mariana Ujházyová & Monika Janišová
Changes of the above-ground vegetation and soil the seed bank were studied in a secondary oligo-trophic montane grassland after abandonment and gradual colonisation by Norway spruce. The main aim was to compare the responses of the above- and below-ground species composition and rich-ness as well as seed density to successional development. Next aim was to study the relationship of above-ground vegetation and soil seed bank along the spruce colonisation gradient. Simultaneously, we asked whether two...

Restoration of steppic sandy grassland using deep-sand deposition, inoculation with plant material and grazing: a 10-year study

Christian Storm, Carsten Eichberg, Michael Stroh & Angelika Schwabe
Inland sand vegetation, in our case steppic sandy grassland on base-rich soils, is highly endangered in Europe and therefore in the focus of restoration ecology. While there are studies which deal with short-term restoration success, results for an extended time are rare. We were able to analyse the success of a three-step restoration measure for 10 years. The experiment was established on an exarable field in the Upper Rhine valley, Hesse, Germany. The three-step restoration...

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