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Impact of artificial lighting on day- and night-time plant-pollinator networks

English title Impact of artificial lighting on day- and night-time plant-pollinator networks
Applicant Knop Eva
Number 156265
Funding scheme Project funding
Research institution Institut für Ökologie und Evolution Universität Bern
Institution of higher education University of Berne - BE
Main discipline Ecology
Start/End 01.05.2015 - 28.02.2019
Approved amount 297'760.00
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All Disciplines (3)

Discipline
Ecology
Botany
Zoology

Keywords (7)

light pollution ; interconnectedness; pollen-transport networks; network robustness; network structure; nocturnal pollinator communities; night-time plant-pollinator networks

Lay Summary (German)

Lead
Nächtliche Bestäubung durch Invertebraten ist weltweit auf Gemeinschaftsebene noch nie untersucht worden, obwohl geschätzt wird, dass die Mehrheit der Invertebraten nachtaktiv ist. In diesem Projekt untersuchen wir mit Hilfe von ökologischen Netzwerken sowohl tagsüber als auch nachts Interaktionen zwischen Pflanzen und Bestäuber. Auch werden wir untersuchen wie sich die zunehmende künstliche Beleuchtung auf die Pflanzen-Bestäuber Interaktionen auswirkt.
Lay summary

Interaktionen zwischen Arten bestimmen ökologische und evolutive Prozesse in Lebensgemeinschaften. Ein sehr nützlicher Ansatz um Interaktionen zwischen Arten zu analysieren und verstehen sind ökologische Netzwerke. Erstaunlicherweise wurden in den zahlreichen Studien zu Interaktionen von Pflanzen und Bestäuber nur Netzwerke tagsüber untersucht, während die nächtlichen Interaktionen zwischen Pflanzen und Bestäuber ignoriert wurden. Als Folge davon ist unser Verständnis von Pflanzen-Bestäuber Netzwerken äusserst unvollständig. Gleichzeitig hat in den vergangenen Jahren die nachts beleuchtete Fläche stark zugenommen und man hat zur Zeit keine Ahnung, wie sich dies auf die nächtliche Bestäubergemeinschaft und ihre Ökosystemdienstleistung auswirkt.

In diesem Projekt untersuchen wir zum ersten Mal die Struktur von vollständigen Pflanzen-Bestäuber Netzwerken indem wir auf insgesamt 20 Flächen sowohl die Pflanzen-Bestäuber Interaktionen tagsüber als auch nachts aufnehmen. Zudem werden wir mittels experimentell aufgestellten Strassenlaternen testen, wie sich künstliche Beleuchtung auf die Struktur und Funktion der Netzwerke auswirkt. Schliesslich werden wir basierend auf den gesammelten Daten verschiedene Szenarien modellieren und analysieren, was es für die Stabilität des Systems bedeutet, wenn gewisse Bestäuber aufgrund künstlicher Beleuchtung wegfallen.

Dieses Projekt wird nicht nur einen sehr wichtigen Beitrag zu Grundlagenforschung im Bereich Netzwerktheorie und Pflanzen-Bestäuber Interaktionen leisten, sondern es wird auch für den Naturschutz wichtige Resultate liefern. Aufgrund der weltweiten Bestäuberkrise ist es äusserst wichtig, dass Faktoren, die Bestäubung gefährden, bekannt sind, wie zum Beispiel die rasant zunehmende Lichtverschmutzung.

Direct link to Lay Summary Last update: 30.04.2015

Responsible applicant and co-applicants

Name Institute

Employees

Publications

Publication
Impact of artificial light at night on diurnal plant-pollinator interactions
Giavi Simone, Fontaine Colin, Knop Eva (2021), Impact of artificial light at night on diurnal plant-pollinator interactions, in Nature Communications, 12(1), 1690-1690.
Pollination and fruit infestation under artificial light at night:light colour matters
Boom Michiel P., Spoelstra Kamiel, Biere Arjen, Knop Eva, Visser Marcel E. (2020), Pollination and fruit infestation under artificial light at night:light colour matters, in Scientific Reports, 10(1), 18389-18389.
Rush hours in flower visitors over a day–night cycle
KnopEva, GerpeChristopher, RyserRemo, HofmannFabian, MenzH.M. Myles, TröschSandra, UrsenbacherStefan, ZollerLeana, FontaineColin (2017), Rush hours in flower visitors over a day–night cycle, in Insect Conservation and Diversity, 11(3), 267-275.
Artificial light at night as a new threat to pollination
Knop Eva, Zoller Leana, Ryser Remo, Gerpe Christopher, Hörler Maurin, Fontaine Colin (2017), Artificial light at night as a new threat to pollination, in Nature, 548(7666), 206-209.

Datasets

Impact of artificial light at night on diurnal plant-pollinator interactions

Author Giavi, Simone
Persistent Identifier (PID) 10.5281/zenodo.4540407
Repository Zenodo


Artificial light at night can modify ecosystem functioning beyond the lit area: deposited data

Author Giavi, Simone
Persistent Identifier (PID) 10.5281/zenodo.4730510
Repository Zenodo


Collaboration

Group / person Country
Types of collaboration
Netherlands Institute of Ecology Netherlands (Europe)
- Publication
Muséum National d’Histoire Naturelle France (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
Seminar at University of Konstanz Individual talk Plants and their interactions with animals in an increasingly illuminated world 08.07.2020 Konstanz, Germany Knop Eva;
Emerging Topics in Global Change Biology of Plants Talk given at a conference Plants and their interactions with animals in an increasingly illuminated world 28.10.2019 Taizhou, China Knop Eva;
Seminar at University of Groningen Individual talk Impact of artificial light at night on plant-pollinator interactions 17.10.2019 Groningen, Netherlands Knop Eva;
Global Change and Biodiversity: Integrating the impact of earth and world drivers across scale Talk given at a conference Consequences of artificial light at night for biodiversity and ecosystem functioning 30.06.2019 Monte Verita, Switzerland Knop Eva;
Annual meeting of the Swiss Entomological Society Talk given at a conference Street lamps disrupt flower-visitor interactions beyond the illuminated area 01.03.2019 St.Gallen, Switzerland Giavi Simone; Knop Eva;
Biology 19 Talk given at a conference Street lamps disrupt flower-visitor interactions beyond the illuminated area 07.02.2019 Zürich, Switzerland Giavi Simone; Knop Eva;
5th International Conference on Artificial Light At Night Talk given at a conference Street lamps disrupt flower-visitor interactions beyond the illuminated area 12.11.2018 Utah, United States of America Giavi Simone;
National Reproductive Ecology meeting of China Talk given at a conference Artificial light at night as a new threat to pollination 25.06.2018 Kunming, China Knop Eva;
Seminarreihe der Abteilung Ecology der Universität Konstanz Individual talk Species interactions and ecosystem functioning in an increasingly urbanized world 14.05.2018 Konstanz, Germany Knop Eva;
Biology 18 Poster Nocturnal plant-animal mutualistic network: effects of artificial lighting and consequences on pollination 15.02.2018 Neuchatel, Switzerland Knop Eva; Giavi Simone;
Conference on Ecology Across Borders Poster Nocturnal plant-animal mutualistic network: effects of artificial lighting and consequences on pollination 11.12.2017 Ghent, Belgium Knop Eva; Giavi Simone;
Seminarreihe der Abteilung Agrarökologie der Universität Göttingen Individual talk Biodiversity and ecosystem functioning in an increasingly urbanized world 17.05.2017 Göttingen, Germany Knop Eva;
Seminarreihe der Abteilung Animal Ecology and Tropical Biology der Universität Würzburg Individual talk Biodiversity and ecosystem functioning in an increasingly urbanized world 03.05.2017 Würzburg, Germany Knop Eva;
Netherlands Annual Ecology Meeting Talk given at a conference The impact of artificial light at night on plant-pollinator interactions 13.02.2017 Lunteren, Netherlands Knop Eva;
Biology 17 Poster Changes of nocturnal plant-pollinator interactions due to artificial light at night 02.02.2017 Bern, Switzerland Giavi Simone; Knop Eva;
International Conference on Artificial Light at Night Talk given at a conference The impact of artificial lighting on pollination 26.09.2016 Cluj-Napoca, Romania Knop Eva;


Knowledge transfer events

Active participation

Title Type of contribution Date Place Persons involved
Auswirkungen neuer Lichtquellen (LED) auf nachtaktive Bestäuber und ihre Bestäubungsleistung Talk 09.03.2017 Olten, Switzerland Giavi Simone; Knop Eva;


Self-organised

Title Date Place
Symposium über Lichtverschmutzung und deren Auswirkungen auf die Natur 31.03.2021 Zürich, Switzerland

Communication with the public

Communication Title Media Place Year
Media relations: print media, online media Lichtverschmutzung stört Insekten auch tagsüber >60 Tageszeitungen international International 2021
Media relations: radio, television Nacht in der Schweiz SRF German-speaking Switzerland 2020
Media relations: radio, television 10 vor 10 SRF German-speaking Switzerland 2019
Media relations: radio, television Pollution lumineuse TV Onex Western Switzerland 2019
Video/Film Saving the Dark International 2018
Media relations: print media, online media Lichtverschmutzung bedroht die Bestäubung Medienmitteilung German-speaking Switzerland 2017
Media relations: print media, online media Lichtverschmutzung gefährdet Bestäubung von Pflanzen WDR1 (Deutschland) International 2017
Media relations: print media, online media Light pollution as a new threat to pollination Press Information International 2017

Awards

Title Year
Best talk, National Reproductive Conference of China 2018
Theodor Kocher Price of the University of Bern 2017

Associated projects

Number Title Start Funding scheme
197698 Indirect effects of artificial light at night on diurnal plant-pollinator interactions 01.07.2021 Project funding

Abstract

Interactions among species drive the ecological and evolutionary processes in ecological communities, and networks provide a systematic way of describing these interactions. Over the last decade, research on plant-pollinator interaction networks has increased exponentially. However, this research has focused only on diurnal pollinators and has excluded nocturnal pollinators. Consequently, our current understanding of plant-pollinator interaction networks is very incomplete. Additionally, artificial lighting is known to affect nocturnal organisms and is rapidly increasing worldwide (approximately 6% more illuminated area a year globally), but almost nothing is known about how it affects nocturnal pollinator communities and the related ecosystem services. Here, we propose to investigate for the first time the structure of full plant-pollinator networks, by including day-time and night-time networks, and to analyse how the day-time and night-time networks are interconnected. Further, we will experimentally test how these networks respond to artificial lighting (LED-street lamps), which is an increasing anthropogenic perturbation worldwide. Finally, by simulating extinction scenarios we will go beyond observational and experimental evidence and analyse the robustness of day-time, night-time and full networks to species extinctions, and how the robustness changes given artificial lighting.The plant-pollinator networks will be sampled at a total of 20 sites during both day and night, using night-vision equipment and torches for the night observations. The impact of artificial lighting will be investigated by installing mobile street lamps on 10 experimental field sites. Our proposed project will run over three years, with two large field experiments in the first two years and simulations in the third year. Exploring full networks, i.e. day-time and night-time networks together and their interconnectedness will be an important step towards a more accurate picture of the structure and functioning of mutualistic plant-pollinator interactions. In particular, the robustness of plant-pollination networks to species extinctions might be altered when nocturnal pollinators are also considered. Further, our artificial light treatment and simulations will demonstrate how plant-pollinator communities respond to increased light pollution. This is particularly important in the context of the global pollinator crisis.
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