Artificial lighting affects the landscape of fear in a widely distributed shorebird
Fear influences almost all aspects of a prey species’ behaviour, such as its foraging and movement, and has the potential to cause trophic cascades. The superior low-light vision of many predators means that perceived predation risk in prey is likely to be affected by light levels. The widespread an...
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ftpubmed:oai:pubmedcentral.nih.gov:9889372 2023-05-15T16:08:31+02:00 Artificial lighting affects the landscape of fear in a widely distributed shorebird Jolkkonen, Juho Gaston, Kevin J. Troscianko, Jolyon 2023-01-31 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9889372/ http://www.ncbi.nlm.nih.gov/pubmed/36721045 https://doi.org/10.1038/s42003-023-04486-x en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9889372/ http://www.ncbi.nlm.nih.gov/pubmed/36721045 http://dx.doi.org/10.1038/s42003-023-04486-x © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Commun Biol Article Text 2023 ftpubmed https://doi.org/10.1038/s42003-023-04486-x 2023-02-05T02:04:36Z Fear influences almost all aspects of a prey species’ behaviour, such as its foraging and movement, and has the potential to cause trophic cascades. The superior low-light vision of many predators means that perceived predation risk in prey is likely to be affected by light levels. The widespread and increasing intensity of artificial light at night is therefore likely to interfere with this nocturnal visual arms race with unknown behavioural and ecological consequences. Here we test how the fear of predation perceived by wintering Eurasian curlew foraging on tidal flats is influenced by lighting. We quantified flight initiation distance (FID) of individuals under varying levels of natural and artificial illumination. Our results demonstrate that FID is significantly and substantially reduced at low light levels and increases under higher intensity illumination, with artificial light sources having a greater influence than natural sources. Contrary to the sensory-limitation hypothesis, the curlews’ unwillingness to take flight in low-light appears to reflect the risks posed by low-light flight, and a desire to remain on valuable foraging grounds. These findings demonstrate how artificial light can shape the landscape of fear, and how this interacts with optimal foraging decisions, and the costs of taking flight. Text Eurasian Curlew PubMed Central (PMC) Fid ENVELOPE(-65.939,-65.939,-68.664,-68.664) Communications Biology 6 1 |
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Article Jolkkonen, Juho Gaston, Kevin J. Troscianko, Jolyon Artificial lighting affects the landscape of fear in a widely distributed shorebird |
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Article |
description |
Fear influences almost all aspects of a prey species’ behaviour, such as its foraging and movement, and has the potential to cause trophic cascades. The superior low-light vision of many predators means that perceived predation risk in prey is likely to be affected by light levels. The widespread and increasing intensity of artificial light at night is therefore likely to interfere with this nocturnal visual arms race with unknown behavioural and ecological consequences. Here we test how the fear of predation perceived by wintering Eurasian curlew foraging on tidal flats is influenced by lighting. We quantified flight initiation distance (FID) of individuals under varying levels of natural and artificial illumination. Our results demonstrate that FID is significantly and substantially reduced at low light levels and increases under higher intensity illumination, with artificial light sources having a greater influence than natural sources. Contrary to the sensory-limitation hypothesis, the curlews’ unwillingness to take flight in low-light appears to reflect the risks posed by low-light flight, and a desire to remain on valuable foraging grounds. These findings demonstrate how artificial light can shape the landscape of fear, and how this interacts with optimal foraging decisions, and the costs of taking flight. |
format |
Text |
author |
Jolkkonen, Juho Gaston, Kevin J. Troscianko, Jolyon |
author_facet |
Jolkkonen, Juho Gaston, Kevin J. Troscianko, Jolyon |
author_sort |
Jolkkonen, Juho |
title |
Artificial lighting affects the landscape of fear in a widely distributed shorebird |
title_short |
Artificial lighting affects the landscape of fear in a widely distributed shorebird |
title_full |
Artificial lighting affects the landscape of fear in a widely distributed shorebird |
title_fullStr |
Artificial lighting affects the landscape of fear in a widely distributed shorebird |
title_full_unstemmed |
Artificial lighting affects the landscape of fear in a widely distributed shorebird |
title_sort |
artificial lighting affects the landscape of fear in a widely distributed shorebird |
publisher |
Nature Publishing Group UK |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9889372/ http://www.ncbi.nlm.nih.gov/pubmed/36721045 https://doi.org/10.1038/s42003-023-04486-x |
long_lat |
ENVELOPE(-65.939,-65.939,-68.664,-68.664) |
geographic |
Fid |
geographic_facet |
Fid |
genre |
Eurasian Curlew |
genre_facet |
Eurasian Curlew |
op_source |
Commun Biol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9889372/ http://www.ncbi.nlm.nih.gov/pubmed/36721045 http://dx.doi.org/10.1038/s42003-023-04486-x |
op_rights |
© The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
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https://doi.org/10.1038/s42003-023-04486-x |
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Communications Biology |
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6 |
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