Adjusting risk-taking to the annual cycle of long-distance migratory birds
Abstract Life-history theory predicts that current behaviour affects future reproduction, implying that animals should optimise their escape strategies to reflect fitness costs and benefits of premature escape. Both costs and benefits of escape may change temporally with important consequences for t...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2018-09-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-018-32252-1 |
| _version_ | 1818996568746885120 |
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| author | Peter Mikula Mario Díaz Tomáš Albrecht Jukka Jokimäki Marja-Liisa Kaisanlahti-Jokimäki Gal Kroitero Anders Pape Møller Piotr Tryjanowski Reuven Yosef Martin Hromada |
| author_facet | Peter Mikula Mario Díaz Tomáš Albrecht Jukka Jokimäki Marja-Liisa Kaisanlahti-Jokimäki Gal Kroitero Anders Pape Møller Piotr Tryjanowski Reuven Yosef Martin Hromada |
| author_sort | Peter Mikula |
| collection | DOAJ |
| description | Abstract Life-history theory predicts that current behaviour affects future reproduction, implying that animals should optimise their escape strategies to reflect fitness costs and benefits of premature escape. Both costs and benefits of escape may change temporally with important consequences for the evolution of escape strategies. Moreover, escape strategies of species may differ according to their positions on slow–fast pace of life gradients. We studied risk-taking in long-distance migratory animals, waders (Charadriiformes), during the annual cycle, i.e., breeding in Europe, stopover in the Middle East and wintering in tropical Africa. Phylogenetically informed comparative analyses revealed that risk-taking (measured as flight initiation distance, FID) changed significantly over the year, being lowest during breeding and peaking at stopover sites. Similarly, relationships between risk-taking and life-history traits changed among stages of the annual cycle. While risk-taking significantly decreased with increasing body mass during breeding, risk-taking–body mass relationship became marginally significant in winter and disappeared during migration. The positive trend of risk-taking along slow–fast pace of life gradient measured as adult survival was only found during breeding. The season-dependent relationships between risk-taking and life history traits suggest that migrating animals respond to fluctuating environments by adopting behavioural plasticity. |
| first_indexed | 2024-12-20T21:31:49Z |
| format | Article |
| id | doaj.art-dfe5934deb2646d0a8d39cd2676677d5 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-20T21:31:49Z |
| publishDate | 2018-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-dfe5934deb2646d0a8d39cd2676677d52022-12-21T19:26:02ZengNature PortfolioScientific Reports2045-23222018-09-01811910.1038/s41598-018-32252-1Adjusting risk-taking to the annual cycle of long-distance migratory birdsPeter Mikula0Mario Díaz1Tomáš Albrecht2Jukka Jokimäki3Marja-Liisa Kaisanlahti-Jokimäki4Gal Kroitero5Anders Pape Møller6Piotr Tryjanowski7Reuven Yosef8Martin Hromada9Department of Zoology, Faculty of Science, Charles UniversityDepartment of Biogeography and Global Change, Museo Nacional de Ciencias NaturalesDepartment of Zoology, Faculty of Science, Charles UniversityArctic Centre, University of Lapland, PO Box 122Arctic Centre, University of Lapland, PO Box 122Rabin High SchoolEcologie Systématique Evolution, Université Paris-Sud, CNRS, AgroParisTech, Université Paris-SaclayInstitute of Zoology, Poznań University of Life SciencesRabin High SchoolLaboratory and Museum of Evolutionary Ecology, Department of Ecology, Faculty of Humanities and Natural Sciences, University of PresovAbstract Life-history theory predicts that current behaviour affects future reproduction, implying that animals should optimise their escape strategies to reflect fitness costs and benefits of premature escape. Both costs and benefits of escape may change temporally with important consequences for the evolution of escape strategies. Moreover, escape strategies of species may differ according to their positions on slow–fast pace of life gradients. We studied risk-taking in long-distance migratory animals, waders (Charadriiformes), during the annual cycle, i.e., breeding in Europe, stopover in the Middle East and wintering in tropical Africa. Phylogenetically informed comparative analyses revealed that risk-taking (measured as flight initiation distance, FID) changed significantly over the year, being lowest during breeding and peaking at stopover sites. Similarly, relationships between risk-taking and life-history traits changed among stages of the annual cycle. While risk-taking significantly decreased with increasing body mass during breeding, risk-taking–body mass relationship became marginally significant in winter and disappeared during migration. The positive trend of risk-taking along slow–fast pace of life gradient measured as adult survival was only found during breeding. The season-dependent relationships between risk-taking and life history traits suggest that migrating animals respond to fluctuating environments by adopting behavioural plasticity.https://doi.org/10.1038/s41598-018-32252-1Flight Initiation Distance (FID)Escape StrategiesStop-over SitesPremature EscapeFlock Size |
| spellingShingle | Peter Mikula Mario Díaz Tomáš Albrecht Jukka Jokimäki Marja-Liisa Kaisanlahti-Jokimäki Gal Kroitero Anders Pape Møller Piotr Tryjanowski Reuven Yosef Martin Hromada Adjusting risk-taking to the annual cycle of long-distance migratory birds Scientific Reports Flight Initiation Distance (FID) Escape Strategies Stop-over Sites Premature Escape Flock Size |
| title | Adjusting risk-taking to the annual cycle of long-distance migratory birds |
| title_full | Adjusting risk-taking to the annual cycle of long-distance migratory birds |
| title_fullStr | Adjusting risk-taking to the annual cycle of long-distance migratory birds |
| title_full_unstemmed | Adjusting risk-taking to the annual cycle of long-distance migratory birds |
| title_short | Adjusting risk-taking to the annual cycle of long-distance migratory birds |
| title_sort | adjusting risk taking to the annual cycle of long distance migratory birds |
| topic | Flight Initiation Distance (FID) Escape Strategies Stop-over Sites Premature Escape Flock Size |
| url | https://doi.org/10.1038/s41598-018-32252-1 |
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