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Diversity effects on plant life-cycle characteristics and population structure as a base for understanding community assembly and stability

English title Diversity effects on plant life-cycle characteristics and population structure as a base for understanding community assembly and stability
Applicant Fischer Markus
Number 147488
Funding scheme Project funding (Div. I-III)
Research institution Institut für Pflanzenwissenschaften Universität Bern
Institution of higher education University of Berne - BE
Main discipline Ecology
Start/End 01.06.2014 - 31.05.2017
Approved amount 173'922.12
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All Disciplines (2)

Discipline
Ecology
Botany

Keywords (11)

biodiversity; ecosystem functioning; community assembly; plants; leaf pathogens; competition; biodiversity; competition; plants; ecosystem functioning; community assembly

Lay Summary (German)

Lead
Dieses Projekt nutzt das Umfeld eines grossen Biodiversitätsexperiments, des sogenannten Jena-Experiments, in dem der Zusammenhang zwischen der Vielfalt an Pflanzenarten und dem Funktionieren von Ökosystemen in experimentellen Wiesen unterschiedlicher Artenvielfalt untersucht wird. Die Dynamik der Zusammensetzung von Pflanzengemeinschaften basiert auf der Populationsdynamik der Pflanzenarten. Dieses Teilprojekt untersucht deshalb Effekte der Artendiversität und -zusammensetzung von Pflanzengemeinschaften auf die Populationsdynamik der 60 Pflanzenarten des Experimentes.
Lay summary
Die Untersuchung der Populationsdynamik erfolgt unter besonderer Berücksichtigung von Pflanzenmerkmalen, die die Persistenz (Alter der Pflanzen und der Samenbank im Boden) und vitalen Raten (Überlebens- und Reproduktionsraten) von Populationen charakterisieren, und die genetische Differenzierung von Pflanzenpopulationen. Die erhobenen Daten zur Populationsdynamik und ihrer Beziehung zur Diversität und Zusammensetzung der Artengemeinschaften, die in diesem Teilprojekt untersucht werden, sind fundamental für das Verständnis der Dynamik der Zusammensetzung der Pflanzengemeinschaften, und deshalb nicht nur selbst von hoher Relevanz, sondern bilden zusätzlich auch eine wesentliche Grundlage, um Zusammenhänge zu Organismen anderer trophischer Ebenen und zur Verfügbarkeit von Ressourcen zu klären.
Direct link to Lay Summary Last update: 21.05.2014

Responsible applicant and co-applicants

Employees

Publications

Publication
Biodiversity–multifunctionality relationships depend on identity and number of measured functions
Meyer Sebastian T., Ptacnik Robert, Hillebrand Helmut, Bessler Holger, Buchmann Nina, Ebeling Anne, Eisenhauer Nico, Engels Christof, Fischer Markus, Halle Stefan, Klein Alexandra-Maria, Oelmann Yvonne, Roscher Christiane, Rottstock Tanja, Scherber Christoph, Scheu Stefan, Schmid Bernhard, Schulze Ernst-Detlef, Temperton Vicky M., Tscharntke Teja, Voigt Winfried, Weigelt Alexandra, Wilcke Wolfgang, Weisser Wolfgang W. (2018), Biodiversity–multifunctionality relationships depend on identity and number of measured functions, in Nature Ecology & Evolution, 2(1), 44-49.
Biodiversity effects on ecosystem functioning in a 15-year grassland experiment: Patterns, mechanisms, and open questions
Weisser Wolfgang W., Roscher Christiane, Meyer Sebastian T., Ebeling Anne, Luo Guangjuan, Allan Eric, Beßler Holger, Barnard Romain L., Buchmann Nina, Buscot François, Engels Christof, Fischer Christine, Fischer Markus, Gessler Arthur, Gleixner Gerd, Halle Stefan, Hildebrandt Anke, Hillebrand Helmut, de Kroon Hans, Lange Markus, Leimer Sophia, Le Roux Xavier, Milcu Alexandru, Mommer Liesje, et al. (2017), Biodiversity effects on ecosystem functioning in a 15-year grassland experiment: Patterns, mechanisms, and open questions, in Basic and Applied Ecology, 23, 1-73.
Growth ring analysis of multiple dicotyledonous herb species—A novel community-wide approach
Roeder Anna, Schweingruber Fritz Hans, Fischer Markus, Roscher Christiane (2017), Growth ring analysis of multiple dicotyledonous herb species—A novel community-wide approach, in Basic and Applied Ecology, 21, 23-33.
Effects of biodiversity strengthen over time as ecosystem functioning declines at low and increases at high biodiversity
Meyer Sebastian T., Ebeling Anne, Eisenhauer Nico, Hertzog Lionel, Hillebrand Helmut, Milcu Alexandru, Pompe Sven, Abbas Maike, Bessler Holger, Buchmann Nina, De Luca Enrica, Engels Christof, Fischer Markus, Gleixner Gerd, Hudewenz Anika, Klein Alexandra-Maria, de Kroon Hans, Leimer Sophia, Loranger Hannah, Mommer Liesje, Oelmann Yvonne, Ravenek Janneke M., Roscher Christiane, Rottstock Tanja, et al. (2016), Effects of biodiversity strengthen over time as ecosystem functioning declines at low and increases at high biodiversity, in Ecosphere, 7(12), e01619-e01619.

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
Biology 18 Poster Adaptation to biodiversity in experimental grasslands 14.02.2018 Neuchatel, Switzerland Fischer Markus; Kleinspehn Clemens;
Symposium: “15 Years of the Jena Experiment: The Past, the Present, and the Future”, Jena, Germany Poster Diversity effects on the age of forb species in experimental grassland communities 07.02.2017 Jena, Germany Roscher Christiane; Fischer Markus;
Symposium: “15 Years of the Jena Experiment: The Past, the Present, and the Future” Poster Small-scale spatial patterns in experimental grasslands 07.02.2017 Jena, Germany Fischer Markus; Kleinspehn Clemens;
Biology17 Poster Small-scale spatial patterns in experimental grasslands 02.02.2017 Bern, Switzerland Fischer Markus; Kleinspehn Clemens;
2nd iDiv Annual Conference, Leipzig, Germany Poster Linking plant anatomy and ecology 07.11.2016 Leipzig, Germany Roscher Christiane; Fischer Markus;
46th Annual meeting of the Ecological Society of Germany, Austria and Switzerland (GfÖ) Poster Small-scale spatial dynamics in experimental grassland communities 05.09.2016 Marburg, Germany Fischer Markus; Kleinspehn Clemens;
46th Annual Meeting of the Ecological Society of Germany, Austria and Switzerland, "150 years of ecology – lessons for the future", Marburg, Germany Poster Faster Turnover or extended longevity? Effects of plant diversity on plant longevity in experimental grasslands 05.09.2016 Marburg, Germany Fischer Markus; Roscher Christiane;
29th Conference of the Plant Population Biology Section (PopBio) of the Ecological Society of Germany, Austria and Switzerland (GfÖ), Třeboň, Czech Republik Talk given at a conference Is the storage effect related to plant community diversity 05.05.2016 Trebon, Czech Republic Fischer Markus; Roscher Christiane;
Biology16 Poster A matter of grass? – Multi-species responses to diversity alteration 11.02.2016 Lausanne, Switzerland Fischer Markus; Kleinspehn Clemens;
Symposium of the Zurich-Basel Plant Science Center Poster Rapid adaptation to biodiversity loss? 03.12.2015 Zürich, Switzerland Kleinspehn Clemens; Fischer Markus;
28th Conference of the Plant Population Biology Section (PopBio) of the Ecological Society of Germany, Austria and Switzerland (GfÖ), Tübingen, Germany Poster Herbchronology as a tool for population ecologists in the context of biodiversity experiments 14.05.2015 Tübingen, Germany Roscher Christiane; Fischer Markus;


Associated projects

Number Title Start Funding scheme
131193 Mechanisms underlying plant community productivity, stability and assembly (D-A-CH/LAE) 01.07.2010 Project funding (Div. I-III)
159677 Global mountain biodiversity assessment coordination office 2015-2018 01.04.2015 Research Infrastructure

Abstract

Plant community assembly results from the population dynamics of individual species. This subproject addresses effects of community diversity and composition on population dynamics of the 60 experimental grassland species, with special regard to plant life-history traits characterizing the persistence (demographic “storage” mechanisms) and vital rates of populations and diversity-mediated genetic differentiation of plant populations.The following main objectives will be addressed: (1) Plant individual or rhizome age of plant species and their relationship to growth-related variables (plant height, aboveground biomass) will be determined with anatomical and morphological methods; seed banks and seed survival will be quantified in the 10-year old monocultures and communities of the main experiment to evaluate how plant diversity affects the age structure of grassland populations and storage mechanisms. (2) Density, plant life-stage structure, seed set, seed quality and recruitment from seeds will be studied in the monocultures, the main and the trait-based experiment; and small-scale spatial dynamics of populations will be recorded on permanent subplots in the trait-based experiment to explore the effects of plant diversity on vital rates of populations. (3) Seed material of a subset of forb species varying in life-cycle characteristics and their mating systems collected in the plots of the main experiment will be used for common garden experiments manipulating light availability; this information will be used to explore whether observed effects of plant diversity on functional trait variation are rather due to genetic differentiation or phenotypic plasticity. The obtained information on population dynamics and their relationships to plant community diversity and composition as analyzed in this subproject is fundamental for an understanding of community assembly and thus is not only relevant in its own right but will also support further synthesis on interactions with other trophic levels and resource availability in the synthesis project Z2.
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