Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle
Predator activity can structure communities temporally and influence the spatial distribution of prey. Yet, despite the influence this may have on prey species’ activity or geographic persistence, our understanding of whether diel predator activity changes geographically remains limited. Here, we co...
Published in: | Arctic, Antarctic, and Alpine Research |
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Online Access: | https://pure.au.dk/portal/en/publications/e5c12b74-08c4-41d4-848c-89a9b2d217b9 https://doi.org/10.1080/15230430.2024.2367262 http://www.scopus.com/inward/record.url?scp=85199197378&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/e5c12b74-08c4-41d4-848c-89a9b2d217b9 2024-09-15T17:49:04+00:00 Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle Huffeldt, Nicholas P. van Beest, Floris M. Kenyon, Haley L. Danielsen, Jóhannis Guilford, Tim 2024 https://pure.au.dk/portal/en/publications/e5c12b74-08c4-41d4-848c-89a9b2d217b9 https://doi.org/10.1080/15230430.2024.2367262 http://www.scopus.com/inward/record.url?scp=85199197378&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/e5c12b74-08c4-41d4-848c-89a9b2d217b9 info:eu-repo/semantics/openAccess Huffeldt , N P , van Beest , F M , Kenyon , H L , Danielsen , J & Guilford , T 2024 , ' Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle ' , Arctic, Antarctic, and Alpine Research , vol. 56 , no. 1 , 2367262 . https://doi.org/10.1080/15230430.2024.2367262 Chronoecology diel activity light–dark cycle photoperiod constraint hypothesis polar latitude predator activity article 2024 ftuniaarhuspubl https://doi.org/10.1080/15230430.2024.2367262 2024-08-07T23:37:53Z Predator activity can structure communities temporally and influence the spatial distribution of prey. Yet, despite the influence this may have on prey species’ activity or geographic persistence, our understanding of whether diel predator activity changes geographically remains limited. Here, we conduct a case study to test whether predator activity during the darkest phase of the diel cycle increases with the duration of daylight (i.e. photoperiod) at high latitudes during summer, aligning with the photoperiod constraint hypothesis. Using both observations and experiments at one seabird colony above and one below the northern polar (Arctic) circle, we compared predator activity between the brightest and darkest phases of the diel cycle. Avian predator counts were greater and nest predation events were more common during the brightest phase of the diel cycle below the Arctic Circle (i.e. where the sun goes below the horizon) but similar across phases during polar summer (i.e. above the Arctic Circle when the sun does not set). Our results highlight the potential influence of light on activity of predator communities and suggest a possible latitudinal limit to the advantage gained by dark-active strategies for avoidance of visually hunting predators. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Aarhus University: Research Arctic, Antarctic, and Alpine Research 56 1 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Chronoecology diel activity light–dark cycle photoperiod constraint hypothesis polar latitude predator activity |
spellingShingle |
Chronoecology diel activity light–dark cycle photoperiod constraint hypothesis polar latitude predator activity Huffeldt, Nicholas P. van Beest, Floris M. Kenyon, Haley L. Danielsen, Jóhannis Guilford, Tim Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle |
topic_facet |
Chronoecology diel activity light–dark cycle photoperiod constraint hypothesis polar latitude predator activity |
description |
Predator activity can structure communities temporally and influence the spatial distribution of prey. Yet, despite the influence this may have on prey species’ activity or geographic persistence, our understanding of whether diel predator activity changes geographically remains limited. Here, we conduct a case study to test whether predator activity during the darkest phase of the diel cycle increases with the duration of daylight (i.e. photoperiod) at high latitudes during summer, aligning with the photoperiod constraint hypothesis. Using both observations and experiments at one seabird colony above and one below the northern polar (Arctic) circle, we compared predator activity between the brightest and darkest phases of the diel cycle. Avian predator counts were greater and nest predation events were more common during the brightest phase of the diel cycle below the Arctic Circle (i.e. where the sun goes below the horizon) but similar across phases during polar summer (i.e. above the Arctic Circle when the sun does not set). Our results highlight the potential influence of light on activity of predator communities and suggest a possible latitudinal limit to the advantage gained by dark-active strategies for avoidance of visually hunting predators. |
format |
Article in Journal/Newspaper |
author |
Huffeldt, Nicholas P. van Beest, Floris M. Kenyon, Haley L. Danielsen, Jóhannis Guilford, Tim |
author_facet |
Huffeldt, Nicholas P. van Beest, Floris M. Kenyon, Haley L. Danielsen, Jóhannis Guilford, Tim |
author_sort |
Huffeldt, Nicholas P. |
title |
Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle |
title_short |
Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle |
title_full |
Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle |
title_fullStr |
Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle |
title_full_unstemmed |
Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle |
title_sort |
activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the arctic circle |
publishDate |
2024 |
url |
https://pure.au.dk/portal/en/publications/e5c12b74-08c4-41d4-848c-89a9b2d217b9 https://doi.org/10.1080/15230430.2024.2367262 http://www.scopus.com/inward/record.url?scp=85199197378&partnerID=8YFLogxK |
genre |
Antarctic and Alpine Research Arctic |
genre_facet |
Antarctic and Alpine Research Arctic |
op_source |
Huffeldt , N P , van Beest , F M , Kenyon , H L , Danielsen , J & Guilford , T 2024 , ' Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle ' , Arctic, Antarctic, and Alpine Research , vol. 56 , no. 1 , 2367262 . https://doi.org/10.1080/15230430.2024.2367262 |
op_relation |
https://pure.au.dk/portal/en/publications/e5c12b74-08c4-41d4-848c-89a9b2d217b9 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1080/15230430.2024.2367262 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
56 |
container_issue |
1 |
_version_ |
1810290761664561152 |