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Sven Bacher

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Titular professor

University of Fribourg

Switzerland

Research Interests

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About

Professor Sven Bacher is a Titular Professor at the University of Fribourg, Switzerland. His research primarily focuses on the impacts of invasive alien species, conservation ethics, and ecosystem services. Recent articles highlight the negative effects of biological invasions on native biodiversity and ecosystem functions, as well as management strategies in Europe. He is an advocate for urgent measures to mitigate the growing threats posed by invasive species.

Recent Grants

Grant: Open

10002485 - Understanding positive and negative environmental and socio-economic impacts of alien species

Open Date: 2025-01-01

Close Date: 2028-12-31

Grant: Close

Risk Assessment of Invasive Plants in Iran: Introducing A Practical Model For the Different Climate Zones

Open Date: 2021-08-01

Close Date: 2021-10-31

Grant: Close

Principles for Ethical Decision-Making in Environmental Practice

Open Date: 2021-04-01

Close Date: 2025-03-31

Grant: Close

InvasiBES

Open Date: 2019-04-01

Close Date: 2022-03-31

Grant: Close

Dealing with uncertainty in alien species impact assessments

Open Date: 2018-09-01

Close Date: 2022-08-31

Articles (27)

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2026

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2026

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2025

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2025

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2025

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2025

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2025

Biological invasions have profound impacts on biodiversity and ecosystem functioning and services, resulting in substantial economic and health costs estimated in the trillions of dollars. Preventing and managing biological invasions are vital for sustainable development, aligning with the goals of the United Nations Biodiversity Conference. However, some invasive species also offer occasional benefits, leading to divergent perceptions among stakeholders and sectors. Claims that invasion science overlooks positive contributions threaten to hinder proper impact assessment and undermine management. Quantitatively balancing benefits and costs is misleading, because they coexist without offsetting each other. Any benefits also come at a price, affecting communities and regions differently over time. An integrated approach considering both costs and benefits is necessary for understanding and effective management of biological invasions.

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2024

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2024

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2024

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2024

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2024

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2024

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2024

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2024

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2024

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2024

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2023

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2023

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2023

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2022

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2022

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2022

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2022

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2022

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2022

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2022

Collaborators (37)

Laura Meyerson

Professor

University of Rhode Island

UNITED STATES

Sven Bacher

Research Interests

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About

Recent Grants

Articles (27)

Invasive species’ environmental impacts are more severe in the Global South

Regional impact risk classification (RIRC): A predictive framework for plant invasion impacts

Clarifying ethical stances in conservation: a trolley problem thought experiment

Management Measures and Trends of Biological Invasions in Europe: A Survey‐Based Assessment of Local Managers

Global Impacts Dataset of Invasive Alien Species (GIDIAS)

Harms of introduced large herbivores outweigh benefits to native biodiversity

Correction: Global Impacts Dataset of Invasive Alien Species (GIDIAS)

Benefits do not balance costs of biological invasions

Identifying candidate host plants for trap cropping against Drosophila suzukii in vineyards

Curbing the major and growing threats from invasive alien species is urgent and achievable

Risks posed by invasive species to the provision of ecosystem services in Europe

Effects of pesticides on soil bacterial, fungal and protist communities, soil functions and grape quality in vineyards

Including a diverse set of voices to address biological invasions

Traits of insect herbivores and target weeds associated with greater biological weed control establishment and impact

﻿Field studies of the ecological impacts of invasive plants in Europe

A scenario-guided strategy for the future management of biological invasions

European scenarios for future biological invasions

A general framework to quantify and compare ecological impacts under temporal dynamics

Influence of Wireworm Diet on its Susceptibility to and Control With the Entomopathogenic Fungus Metarhizium brunneum (Hypocreales: Clavicipitaceae) in Laboratory and Field Settings

Local conditions matter: Minimal and variable effects of soil disturbance on microbial communities and functions in European vineyards

﻿Consistency in impact assessments of invasive species is generally high and depends on protocols and impact types

Consensus and controversy in the discipline of invasion science

Are species more harmful in their native, neonative or alien range? Insights from a global analysis of bark beetles

General trends of different inter-row vegetation management affecting vine vigor and grape quality across European vineyards

Identifying, reducing, and communicating uncertainty in community science: a focus on alien species

The EICAT plus framework enables classification of positive impacts of alien taxa on native biodiversity

Toward the use of protists as bioindicators of multiple stresses in agricultural soils: A case study in vineyard ecosystems

Collaborators (37)

Laura Meyerson

Thomas Evans

Michael Glaser

Ugo Arbieu

Martin Pingel

Mark Schwarzlaender

Lluís Coromina

Claudio Sebastián Quilodrán Venegas

Jana Mullerova

Franz Essl

Helen Elizabeth Roy

Cristian Pérez-Granados

Elizabeth Pienaar

Martin Nuñez

Alejandro Ordonez

Bernd Lenzner

Hanno Seebens

Daniel Wegmann

Carla Garcia-Lozano

Julissa Rojas-Sandoval

Pilar Castro-Diez

Guillaume Latombe

Yan Sun

Ingolf Kühn

Tinyiko Cavin Shivambu

Mario Coiro

Giovanni Vimercati

Jonathan M. Jeschke

Michelle Cleary

Pavel Pipek

Ninad Mungi

Tim Adriaens

Helen Nahrung

Franck Courchamp

Katharina Dehnen-Schmutz

Christian Kull

Montserrat Vilà Planella

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Field studies of the ecological impacts of invasive plants in Europe

Consistency in impact assessments of invasive species is generally high and depends on protocols and impact types