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Impact of changing wind conditions on foraging and incubation success in male and female wandering albatrosses

Tina Cornioley, Luca Borger Orcid Logo, Arpat Ozgul, Henri Weimerskirch, Jennifer Gill

Journal of Animal Ecology

Swansea University Author: Luca Borger Orcid Logo

DOI (Published version): 10.1111/1365-2656.12552

Abstract

Wind is an important climatic factor for flying animals as by affecting their locomotion, it can deeply impact their life-history characteristics. In the context of globally changing wind patterns, we investigated the mechanisms underlying recently reported increase in body mass of a population of w...

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Published in: Journal of Animal Ecology
Published: 2016
Online Access: http://onlinelibrary.wiley.com/wol1/doi/10.1111/1365-2656.12552/abstract
URI: https://cronfa.swan.ac.uk/Record/cronfa27102
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spelling 2023-01-30T16:03:34.7886475 v2 27102 2016-04-08 Impact of changing wind conditions on foraging and incubation success in male and female wandering albatrosses 8416d0ffc3cccdad6e6d67a455e7c4a2 0000-0001-8763-5997 Luca Borger Luca Borger true false 2016-04-08 SBI Wind is an important climatic factor for flying animals as by affecting their locomotion, it can deeply impact their life-history characteristics. In the context of globally changing wind patterns, we investigated the mechanisms underlying recently reported increase in body mass of a population of wandering albatrosses (Diomedea exulans) with increasing wind speed over time. We built a foraging model detailing the effects of wind on movement statistics and ultimately on mass gained by the forager and mass lost by the incubatingpartner. We then simulated the body mass of incubating pairs and their incubation success under varying wind scenarios. We tracked the frequency at which critical mass leading to nest abandonment was reached to assess incubation success. We found that wandering albatross behave as time-minimizers during incubation as mass gain was independent of any movement statistics but decreased with increasing mass at departure. Individuals forage until their energy requirements, which are determined by their body conditions, are fulfilled. This can come at the cost of their partner’s condition as mass loss of the incubating partner depended on trip duration. This behaviour is consistent with strategies of long-lived species which favoured their own survival over their current reproductive attempt. In addition, wind speed increased ground speed which in turn reduced trip duration and males foraged further away than females at high ground speed. Contrasted against an independent dataset, the simulation performed satisfactorily for males but less so for females under current wind conditions. The simulation predicted an increase in male body mass growth rate with increasing wind speed whereas females’ rate decreased. This trend may providean explanation for the observed increase in mass of males but not of females. Conversely, the simulation predicted very few nest abandonments, which is in line with the high breeding success of this species and is contrary to the hypothesis that wind patterns impact incubation success by altering foraging movement. Journal Article Journal of Animal Ecology movement, reproductive success, wind, bird flight, birds, movement ecology 11 8 2016 2016-08-11 10.1111/1365-2656.12552 http://onlinelibrary.wiley.com/wol1/doi/10.1111/1365-2656.12552/abstract COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2023-01-30T16:03:34.7886475 2016-04-08T18:57:42.6865223 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Tina Cornioley 1 Luca Borger 0000-0001-8763-5997 2 Arpat Ozgul 3 Henri Weimerskirch 4 Jennifer Gill 5 0027102-08042016185900.pdf Cornioley_etal_acceptedVersion.pdf 2016-04-08T18:59:00.3930000 Output 350400 application/pdf Accepted Manuscript true 2017-06-28T00:00:00.0000000 true
title Impact of changing wind conditions on foraging and incubation success in male and female wandering albatrosses
spellingShingle Impact of changing wind conditions on foraging and incubation success in male and female wandering albatrosses
Luca Borger
title_short Impact of changing wind conditions on foraging and incubation success in male and female wandering albatrosses
title_full Impact of changing wind conditions on foraging and incubation success in male and female wandering albatrosses
title_fullStr Impact of changing wind conditions on foraging and incubation success in male and female wandering albatrosses
title_full_unstemmed Impact of changing wind conditions on foraging and incubation success in male and female wandering albatrosses
title_sort Impact of changing wind conditions on foraging and incubation success in male and female wandering albatrosses
author_id_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2
author_id_fullname_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2_***_Luca Borger
author Luca Borger
author2 Tina Cornioley
Luca Borger
Arpat Ozgul
Henri Weimerskirch
Jennifer Gill
format Journal article
container_title Journal of Animal Ecology
publishDate 2016
institution Swansea University
doi_str_mv 10.1111/1365-2656.12552
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url http://onlinelibrary.wiley.com/wol1/doi/10.1111/1365-2656.12552/abstract
document_store_str 1
active_str 0
description Wind is an important climatic factor for flying animals as by affecting their locomotion, it can deeply impact their life-history characteristics. In the context of globally changing wind patterns, we investigated the mechanisms underlying recently reported increase in body mass of a population of wandering albatrosses (Diomedea exulans) with increasing wind speed over time. We built a foraging model detailing the effects of wind on movement statistics and ultimately on mass gained by the forager and mass lost by the incubatingpartner. We then simulated the body mass of incubating pairs and their incubation success under varying wind scenarios. We tracked the frequency at which critical mass leading to nest abandonment was reached to assess incubation success. We found that wandering albatross behave as time-minimizers during incubation as mass gain was independent of any movement statistics but decreased with increasing mass at departure. Individuals forage until their energy requirements, which are determined by their body conditions, are fulfilled. This can come at the cost of their partner’s condition as mass loss of the incubating partner depended on trip duration. This behaviour is consistent with strategies of long-lived species which favoured their own survival over their current reproductive attempt. In addition, wind speed increased ground speed which in turn reduced trip duration and males foraged further away than females at high ground speed. Contrasted against an independent dataset, the simulation performed satisfactorily for males but less so for females under current wind conditions. The simulation predicted an increase in male body mass growth rate with increasing wind speed whereas females’ rate decreased. This trend may providean explanation for the observed increase in mass of males but not of females. Conversely, the simulation predicted very few nest abandonments, which is in line with the high breeding success of this species and is contrary to the hypothesis that wind patterns impact incubation success by altering foraging movement.
published_date 2016-08-11T03:32:47Z
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