Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2018
Authors
Jürgen Dengler Viktoria Wagner Iwona Dembicz Itziar García-Mijangos Alireza Naqinezhad Steffen Boch Alessandro Chiarucci Timo Conradi Goffredo Filibeck Riccardo Guarino Monika Janišová Manuel J. Steinbauer Svetlana Aćić Alicia T.R. Acosta Munemitsu Akasaka Marc-Andre Allers Iva Apostolova Irena Axmanová Branko Bakan Alina Baranova Manfred Bardy-Durchhalter Sándor Bartha Esther Baumann Thomas Becker Ute Becker Elena Belonovskaya Karin Bengtsson José Luis Benito Alonso Asun Berastegi Ariel Bergamini Ilaria Bonini Hans Henrik Bruun Vasyl Budzhak Alvaro Bueno Juan Antonio Campos Laura Cancellieri Marta Carboni Cristina Chocarro Luisa Conti Marta Czarniecka-Wiera Pieter De Frenne Balázs Deák Yakiv P. Didukh Martin Diekmann Christian Dolnik Cecilia Duprè Klaus Ecker Nikolai Ermakov Brigitta Erschbamer Adrián Escudero Javier Etayo Zuzana Fajmonová Vivian Astrup Felde Maria Rosa Fernández Calzado Manfred Finckh Georgios Fotiadis Mariano Fracchiolla Anna Ganeva Daniel García-Magro Rosario G. Gavilán Markus Germany Itamar Giladi François Gillet Gian Pietro Giusso del Galdo Jose M. González John-Arvid Grytnes Michal Hájek Petra Hájková Aveliina Helm Mercedes Herrera Eva Hettenbergerová Carsten Hobohm Elisabeth M. Hüllbusch Nele Ingerpuu Ute Jandt Florian Jeltsch Kai Jensen Anke Jentsch Michael Jeschke Borja Jiménez-Alfaro Zygmunt Kacki Kaoru Kakinuma Jutta Kapfer Ali Kavgaci András Kelemen Kathrin Kiehl Asuka Koyama Tomoyo F. Koyanagi Łukasz Kozub Anna Kuzemko Magni Olsen Kyrkjeeide Sara Landi Nancy Langer Lorenzo Lastrucci Lorenzo Lazzaro Chiara Lelli Jan Lepš Swantje Löbel Arantzazu L. Luzuriaga Simona Maccherini Martin Magnes Marek Malicki Corrado Marcenó Constantin Mardari Leslie Mauchamp Felix May Ottar Michelsen Joaquín Molero Mesa Zsolt Molnár Ivan Y. Moysiyenko Yuko K. Nakaga Rayna Natcheva Jalil Noroozi Robin J. Pakeman Salza Palpurina Meelis Pärtel Ricarda Pätsch Harald Pauli Hristo Pedashenko Robert K. Peet Remigiusz Pielech Nataša Pipenbaher Chrisoula Pirini Zuzana Plesková Mariya A. Polyakova Honor C. Prentice Jennifer Reinecke Triin Reitalu Maria Pilar Rodríguez-Rojo Jan Roleček Vladimir Ronkin Leonardo Rosati Ejvind Rosén Eszter Ruprecht Solvita Rusina Marko Sabovljević Ana María Sánchez Galina Savchenko Oliver Schuhmacher Sonja Škornik Marta Gaia Sperandii Monika Staniaszek-Kik Zora Stevanović-Dajić Marin Stock Sigrid Suchrow Laura M. E. Sutcliffe Grzegorz Swacha Martin Sykes Anna Szabó Amir Talebi Cătălin Tănase Massimo Terzi Csaba Tölgyesi Marta Torca Péter Török Béla Tóthmérész Nadezda Tsarevskaya Ioannis Tsiripidis Rossen Tzonev Atushi Ushimaru Orsolya Valkó Eddy van der Maarel Thomas Vanneste Iuliia Vashenyak Kiril Vassilev Daniele Viciani Luis Villar Risto Virtanen Ivana Vitasović Kosić Yun Wang Frank Weiser Julia Went Karsten Wesche Hannah White Manuela Winkler Piotr T. Zaniewski Hui Zhang Yaron Ziv Sergey Znamenskiy Idoia BiurrunAbstract
GrassPlot is a collaborative vegetation-plot database organised by the Eurasian Dry Grassland Group (EDGG) and listed in the Global Index of Vegetation-Plot Databases (GIVD ID EU-00-003). GrassPlot collects plot records (relevés) from grasslands and other open habitats of the Palaearctic biogeographic realm. It focuses on precisely delimited plots of eight standard grain sizes (0.0001; 0.001; ... 1,000 m²) and on nested-plot series with at least four different grain sizes. The usage of GrassPlot is regulated through Bylaws that intend to balance the interests of data contributors and data users. The current version (v. 1.00) contains data for approximately 170,000 plots of different sizes and 2,800 nested-plot series. The key components are richness data and metadata. However, most included datasets also encompass compositional data. About 14,000 plots have near-complete records of terricolous bryophytes and lichens in addition to vascular plants. At present, GrassPlot contains data from 36 countries throughout the Palaearctic, spread across elevational gradients and major grassland types. GrassPlot with its multi-scale and multi-taxon focus complements the larger international vegetationplot databases, such as the European Vegetation Archive (EVA) and the global database “sPlot”. Its main aim is to facilitate studies on the scale- and taxon-dependency of biodiversity patterns and drivers along macroecological gradients. GrassPlot is a dynamic database and will expand through new data collection coordinated by the elected Governing Board. We invite researchers with suitable data to join GrassPlot. Researchers with project ideas addressable with GrassPlot data are welcome to submit proposals to the Governing Board.
Abstract
No abstract has been registered
Abstract
Question In recent decades, high‐latitude climate has shown regionally variable trends towards warmer and moister conditions. These changes have been predicted to cause afforestation or shrubification of open tundra, increases of warmth‐demanding southern species and plant groups favoured by increased moisture, and decline of species and habitats that are dependent on snow cover. In this study, we explore temporal changes in northern tundra upland plant communities along regional gradients and in local habitats. We ask how vegetation changes are linked with long‐term trends in regional climate and grazing pressure. Location Northern Europe. Methods In 2013–2014, we resurveyed a total of 108 vegetation plots on wind‐exposed and snow‐protected tundra habitats in three subareas along a bioclimatic gradient from the northern boreal to the arctic zone. Vegetation plots were originally sampled in 1964–1967. We related observed vegetation changes to changes in temperature, precipitation and grazing pressure, which all showed regionally variable increases over the study period. Results We found a significant increase of the evergreen dwarf shrub Empetrum nigrum subsp. hermaphroditum in snow‐protected communities and a prominent decrease of lichens throughout the study area. No evidence for extensive tree or larger shrub (Betula spp., Salix spp. or Juniperus communis) encroachment despite climatic warming trends was found. Among studied communities, most pronounced changes in vegetation were observed in snow‐protected boreal heaths on small isolated uplands, where community composition showed low resemblance to the original composition described decades ago. Changes in plant communities correlated with changes in summer and winter temperatures, summer precipitation and reindeer grazing pressure, yet correlations varied depending on region and habitat. Conclusions Northern tundra uplands vary in their resistance to on‐going climate change and reindeer grazing. Isolated treeless heaths of boreal forest–tundra ecotone appear least resistant to climate change and have already shifted towards new community states.
Authors
Patryk Czortek Jutta Kapfer Anna Delimat Amy Eycott John-Arvid Grytnes Anna Orczewska Halina Ratyńska Antoni Zięba Bogdan JaroszewiczAbstract
Mountain vegetation is often considered highly sensitive to climate and land-use changes due to steep environmental gradients determining local plant species composition. In this study we present plant species compositional shifts in the Tatra Mts over the past 90 years and discuss the potential drivers of the changes observed. Using historical vegetation studies of the region from 1927, we resurveyed 76 vegetation plots, recording the vascular flora of each plot using the same methodology as in the original survey. We used an indirect method to quantify plant species compositional shifts and to indicate which environmental gradients could be responsible for these shifts: by calculating shifts in estimated species optima as reflected in shifts in the ecological indicator values of co-occurring species. To find shifts in species composition, focusing on each vegetation type separately, we used ordination (DCA). The species optimum changed significantly for at least one of the tested environmental gradients for 26 of the 95 plant species tested; most of these species changed in terms of the moisture indicator value. We found that the strongest shifts in species composition were in mylonite grassland, snowbed and hygrophilous tall herb communities. Changes in precipitation and increase in temperature were found to most likely drive compositional shifts in vegetation resurveyed. It is likely that the combined effect of climate change and cessation of sheep grazing has driven a species composition shift in granite grasslands communities.
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No abstract has been registered
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No abstract has been registered
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No abstract has been registered
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The prevalence of livestock grazing in wildlife area s is increasing. This transformation of ecosys- tems into agroecosystems is concerning because the intr oduction of new species may cause niche displacement of the functionally related native species. We used a la rge-scale fence scheme and f ecal analyses to study the in fl uence of free-ranging livestock on moose diet on thr ee boreal forest ranges. We found low interspeci fi cdiet overlap between moose and livestock (mean Pianka ’ s O across ranges = 0.21, SD = 0.104), and the diet overlap with livestock did not differ between moose in areas with livestock and in adjacent control areas without live- stock. Still, moose sympatric with livestock had less fe cal nitrogen (a proxy for diet quality) than moose in the control areas. Our fi ndings suggest that interspeci fi c interactions other than direct food competition contributed to reduce the moose ’ foraging opportunities, such as altered forag e abundance and composition, or behavioral avoidance of livestock. We caution that displacement in the foodscape (i.e., spati otemporal use of food) can occur through pathways not evident in niche indices based on composition of plant species in the diet.
Abstract
The research literature on food selection by large herbivores is extensive. Still, we are generally lacking in our knowledge of the influence of potentially interacting chemical contents of the food. We made a qualitative review of a systematic literature search of studies that empirically link chemical contents of food to the food selection by northern cervids (genera Alces, Capreolus, Cervus, Dama, Odocoileus, Rangifer). We found that although the majority of the 98 relevant studies measuring any given food constituent (energy, protein, fiber, minerals, plant secondary metabolites) provided support for it acting as a driver of food selection (in either a negative or positive way), there was little support for the traditional hypotheses of maximization or limitation of any single constituent. Rather, because of the animals’ need to acquire an appropriate intake of several constituents at the same time, our review highlights how new empirical stud- ies need to focus on several food constituents in synchrony: (1) Study designs should capture sufficient variation in the content of food constituents in order to tease apart their many co-variations; and (2) insights about nutritional drivers may be lost if one uses only composite currencies such as crude energy, crude fiber, ash, or tannins, which may mask contrasting selection patterns of the lumped constituents. Season had an apparent influence on the selection of some food constituents, particularly various fiber frac- tions. In contrast, our review revealed a lack of evidence that cervids more strongly select for protein in summer than they do in winter. Our overall conclusion of the review is that interacting chemical contents of food make the nutritional value of a given food type into a varying entity. To better elucidate this varia- tion, we need new technologies that non-invasively capture nutrient intake of free-ranging animals, across seasons.
Authors
Lise GrøvaAbstract
No abstract has been registered