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Testing soil macrodetritivore diversity effects on litter decomposition and plant performance under global warming

English title Testing soil macrodetritivore diversity effects on litter decomposition and plant performance under global warming
Applicant Moretti Marco
Number 170200
Funding scheme Project funding (Div. I-III)
Research institution Swiss Federal Research Inst. WSL Direktion
Institution of higher education Swiss Federal Institute for Forest, Snow and Landscape Research - WSL
Main discipline Environmental Research
Start/End 01.04.2017 - 30.09.2020
Approved amount 327'448.00
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Keywords (9)

Soil macrodetritivores; Plant performance; Non-additive effects; Leaf litter decomposition; Herbivory; Temperature change; Functional diversity; Nutrient cycling; Biodiversity and ecosystem functioning

Lay Summary (German)

Lead
Frühere Forschungen haben häufig eine positive Beziehung zwischen Biodiversität und Ökosystemfunktionen aufgezeigt. Die Art und Weise wie verschiedene Aspekte der biologischen Vielfalt Ökosystemprozesse beeinflussen, werden jedoch debattiert.
Lay summary

Lead

Frühere Forschungen haben häufig eine positive Beziehung zwischen Biodiversität und Ökosystemfunktionen aufgezeigt. Die Art und Weise wie verschiedene Aspekte der biologischen Vielfalt Ökosystemprozesse beeinflussen, werden jedoch debattiert. 

Inhalt und Ziel des Forschungsprojekts

Das Projekt fokussiert auf die relative Bedeutung der funktionellen und taxonomischen Komponenten der Biodiversität von Zersetzern, den Streuabbau, den Nährstoffkreislauf und die Produktivität von Pflanzen. Ich erwarte, dass 1) beide Komponenten der Biodiversität den Streuabbu beeinflussen und 2) der Streuabbau beeinflusst die Pflanzenvitalität, die Reaktion der Pflanzen gegen Herbivore, so wie die anschliessende Nährstoffkreislauf, und 3) die beobachteten Wirkungen durch Klimawandel beeinflusst werden. Um diese Hypothesen zu testen, werde ich Mikrokosmexperimenten durchführen, in denen ich sowohl die funktionelle Aspekte von neun Arten von Bodenarthropoden (Asseln, Regenwürmen, Schnecke) manipulieren werde. Unterschiedliche Artenkombinationen werden einer Mischung aus Eichen und Eschen-Blättern gehalten und zwei Temperaturen (15 °C und 25 °C) ausgesetzt. Dann soll die Wirkung der verschiedenen Artenzusammensetzungen auf multiple Ökosystemfunktionen gemessen werden (siehe Punkt 2).

Wissenschaftlicher und gesellschaftlicher Kontext des Forschungsprojekts

Das Projekt wird wichtige Grundlagen für das funktions-basierte Management von Ökosystemleistung liefern und damit einen Beitrag für die langfristige Erhaltung der biologischen Vielfalt und der Ökosystemleistungen leisten.

Keywords

Biodiversität und Ökosystemprozesse; Boden Makrodetritivoren; Litterzersetzung; Nährstoffkreislauf; Funktionelle Diversität; Pflanzenvitalität; Herbivorie.

Direct link to Lay Summary Last update: 25.03.2017

Responsible applicant and co-applicants

Employees

Publications

Publication
The biogeochemical niche shifts of Pinus sylvestris var. mongolica along an environmental gradient
He Peng, Fontana Simone, Sardans Jordi, Peñuelas Josep, Gessler Arthur, Schaub Marcus, Rigling Andreas, Li Hui, Jiang Yong, Li Mai-He (2019), The biogeochemical niche shifts of Pinus sylvestris var. mongolica along an environmental gradient, in Environmental and Experimental Botany, 167, 103825-103825.
Intraspecific niche partitioning in macrodetritivores enhances mixed leaf litter decomposition
Fontana Simone, Berg Matty P., Moretti Marco (2019), Intraspecific niche partitioning in macrodetritivores enhances mixed leaf litter decomposition, in Functional Ecology, 33(12), 2391-2401.
Urban bumblebees are smaller and more phenotypically diverse than their rural counterparts
Eggenberger Helen, Frey David, Pellissier Loïc, Ghazoul Jaboury, Fontana Simone, Moretti Marco (2019), Urban bumblebees are smaller and more phenotypically diverse than their rural counterparts, in Journal of Animal Ecology, 88(10), 1522-1533.
Scale dependent responses of pine reproductive traits to experimental and natural precipitation gradients
He Peng, Fontana Simone, Sui Xin, Gessler Arthur, Schaub Marcus, Rigling Andreas, Jiang Yong, Li Mai-He (2018), Scale dependent responses of pine reproductive traits to experimental and natural precipitation gradients, in Environmental and Experimental Botany, 156, 62-73.

Datasets

Intraspecific niche partitioning in macrodetritivores enhances mixed leaf litter decomposition

Author Fontana, Simone; Berg, Matti; Moretti, Marco
Publication date 02.09.2020
Persistent Identifier (PID) http://doi.org/10.5281/zenodo.3384279
Repository Zenodo
Abstract
Our dataset consists of masses of Oniscus asellus individuals and total leaf litter (Acer platanoides and/or Betula pendula) measured before and after the experiment.

Collaboration

Group / person Country
Types of collaboration
Forest Soils and Biogeochemistry, Swiss Federal Research Institute WSL, Birmensdorf Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
- Exchange of personnel
Functional Ecology Laboratory, University of Neuchâtel Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
- Exchange of personnel
Faculty of Earth and Life Sciences, Vrije Universiteit, Amsterdam Netherlands (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
- Exchange of personnel
Faculty of Sciences, University of South Bohemia Czech Republic (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Exchange of personnel

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
BD-seminar series (WSL) Individual talk Fall and rise of a leaf: a trait-based adventure 11.03.2020 Birmensdorf, Switzerland Fontana Simone;
SUPSI seminar (Laboratory of Applied Microbiology) Individual talk Elusive actors on the stage of ecosystem (and microbial) ecology 11.11.2019 Bellinzona, Switzerland Fontana Simone;
iDiv seminar (Experimental Interaction Ecology research group) Individual talk Elusive actors on the stage of ecosystem ecology 07.03.2019 Münster, Germany Fontana Simone;
Biology19 Talk given at a conference Intraspecific size mediated niche partitioning enhances mixed leaf litter decomposition 06.02.2019 Zurich, Switzerland Fontana Simone; Moretti Marco;
Journées TEBIS VII Talk given at a conference It’s a matter of taste: intraspecific size-mediated niche partitioning improves mixed leaf litter consumption 02.10.2018 Avignon, France Fontana Simone; Moretti Marco;
Ecology - Meeting the scientific challenges of a complex world (GfÖ annual meeting) Talk given at a conference It’s a matter of taste: intraspecific size-mediated niche partitioning improves mixed leaf litter consumption 11.09.2018 Wien, Austria Fontana Simone;
Biology18 Talk given at a conference Niche partitioning among individuals in natural phytoplankton communities and experimental populations 16.02.2018 Neuchâtel, Switzerland Fontana Simone; Moretti Marco;
Ecology Across Borders (BES & GfÖ annual meeting) Talk given at a conference Even spacing of individuals along multiple trait axes predicts phytoplankton community properties in lakes, and is driven by light limitation in experimental populations 14.12.2017 Gent, Belgium Fontana Simone; Moretti Marco;


Communication with the public

Communication Title Media Place Year
Media relations: print media, online media Die Vielfalt von ökologischen Eigenschaften der Lebewesen beeinflusst Ökosystemprozesse N+L Insides Western Switzerland German-speaking Switzerland 2020
Media relations: print media, online media Laubfresser am Werk: Wer spielt welche Rolle? Wie viel Biodiversität braucht es, damit ein Ökosystem DIAGONAL WSL International Italian-speaking Switzerland German-speaking Switzerland Western Switzerland 2019
New media (web, blogs, podcasts, news feeds etc.) multi-BEF: Testing soil macrodetritivore diversity effects on litter decomposition and plant perform International 2019
New media (web, blogs, podcasts, news feeds etc.) Wer lebt in einem Laubhaufen? German-speaking Switzerland 2019

Associated projects

Number Title Start Funding scheme
154416 Strategies for Better Gardens: integrated analysis of soil quality, biodiversity and social value of urban gardens 01.01.2015 Sinergia

Abstract

The current anthropogenically and climate-driven decline of biodiversity worldwide has prompted the need to understand its impact on multiple key ecosystem functions such as litter decomposition, nutrient cycling, and plant performance. Some decades of work have indeed highlighted a positive relationship between species diversity and several ecosystem functions; however, to date, the degree to which both taxonomic and/or functional aspects of biodiversity affect multiple ecosystem processes is still debated. The present project aims at comprehensively disentangle the interralated role of functional and taxonomic diversity on litter decomposition, nutrient cycling, and plant performance. Specifically, it is hypothesized that 1) variation in both taxonomic and functional components of soil macrodetritivore diversity drives variation in litter decomposition and nutrient cycling, 2) the macrodetritivore diversity-driven changes in litter decomposition influence plant performance, plant-herbivore interaction, and subsequent nutrient recycling, and 3) the effects of macrodetritivore diversity changes on decomposition and nutrient cycling is affected by climate warming. In order to test these hypotheses, I will implement a multi-step research plan based on a series of greenhouse microcosm experiments in which I will use a novel framework to factorially manipulate both the functional identity (i.e., community-weighted mean CWM), and functional diversity (FD) of nine species of soil macrodetritivores (three species of isopods, gastropods, and earthworms, respectively) with contrasting functional traits (e.g. biomass, mobility, water loss rate, feeding habit, and life history). All detritivore communities will be feeding on a mixture of two species of plants (Quercus robur and Fraxinus excelsior, with low and high decomposability, respectively) at two temperature conditions (15 °C and 25 °C). This will allow measurement of Q10 values of different ecosystem processes, i.e., their sensitivity to an increase in temperature of 10°C.The effect of different macrodetritivores communities on ecosystem functioning will be measured (i) via changes in soil nutrient composition, subsequent plant germination rate and performance of Q. robur and F. excelsior,when plants are challenged by herbivores, and ultimately, (ii) via changes in how soil-legacy effect on plant trait variation affects nutrient re-cycling. Assessing cascade effects of soil macrodetritivore diversity on litter decomposition and plant performance under temperature change is novel and challenging. Given the current scenario of increasing biodiversity loss and changes in community composition worldwide, it is essential to better understand the consequences of non-random species loss and, in this way, improve our mechanistic knowledge of the effects that changes in biodiversity components can have on multiple ecosystem functions. Overall, the present project will significantly contribute to the debate regarding the relationships between biodiversity and ecosystem functioning under global change. And its broader impacts can provide valuable scientific support for more effective long-term biodiversity and ecosystem conservation, while paving the road for a more functionally focused management of ecosystem services.
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