The year-round distribution of Northeast Atlantic seabird populations: Applications for population management and marine spatial planning

Per Fauchald* (Corresponding Author), Arnaud Tarroux, Françoise Amélineau, Vegard Sandøy Bråthen, Sébastien Descamps, Morten Ekker, Hálfdán Helgi Helgason, Malin Kjellstadli Johansen, Benjamin Merkel, Borge Moe, Jens Åström, Tycho Anker-Nilssen, Oskar Bjørnstad, Olivier Chastel, Signe Christensen Dalsgaard, Jóhannis Danielsen, Francis Daunt, Nina Dehnhard, Kjell Einar Erikstad, Alexey EzhovMaria Gavrilo , Gunnar Thor Hallgrimsson, Erpur Snær Hansen, Mike Harris, Morten Helberg, Jón Einar Jónsson, Yann Kolbeinsson, Yuri Krasnov, Magdalene Langset, Svein-Håkon Lorentsen, Erlend Lorentzen, Mark Newell, Bergur Olsen, Tone Kristin Reiertsen, Geir Helge Systad , Paul Thompson, Thorkell Lindberg Thórarinsson, Sarah Wanless, Katarzyna Wojczulanis-Jakubas, Hallvard Strøm

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Tracking data of marine predators are increasingly used in marine spatial management. We developed a spatial dataset with estimates of the monthly distribution of six pelagic seabird species breeding in the Northeast Atlantic. The dataset is based on year-round global location sensor (GLS) tracking data of 2356 adult seabirds from 2006-2019 from a network of seabird colonies, datadescribing the physical environment, and data on seabird population sizes. Tracking and environmental data were combined in monthly species distribution models (SDMs). Cross-validations were used to assess the transferability of models between years and breeding locations. The analyses showed that birds from colonies close to each other (< 500 km) used the same nonbreeding habitats, while birds from distant colonies (>1000 km) used colony-specific, and in many cases, non11 overlapping habitats. Based on these results, the SDM from the nearest model colony was used to predict the distribution of all seabird colonies lying within a species-specific cut-off distance (400-500 km). The uncertainties in predictions were estimated by cluster bootstrap sampling. The resulting dataset consists of 4692 map layers, each layer predicting the densities of birds from a given species, colony and month across the North Atlantic. The dataset represents the annual distribution of 23.5 million adult pelagic seabirds, or 87% of the Northeast Atlantic breeding population of the study species. We show how the dataset can be used in population and spatial management applications, including the detection of population-specific nonbreeding habitats and identifying populations influenced by marine protected areas.
Original languageEnglish
Pages (from-to)255-276
Number of pages22
JournalMarine Ecology Progress Series
Volume676
Early online date14 Oct 2021
DOIs
Publication statusPublished - 2021

Bibliographical note

Acknowledgement
We thank all the fieldworkers for their hard work collecting data. Funding for this study was provided by the Norwegian Ministry for Climate and the Environment, the Norwegian Ministry of Foreign Affairs and the Norwegian Oil and Gas Association along with eight oil companies through the SEATRACK project (www.seapop.no/en/seatrack). Fieldwork in Norwegian colonies (incl. Svalbard
and Jan Mayen) was supported by the SEAPOP program (www.seapop.no grant number 192141). The French Polar Institute Paul Emile Victor, funded the ORNITHO-ENDOCRINO program (IPEV program 330 to O. Chastel) on Kongsfjord kittiwakes. Russian field operations were enabled by the crew on SY Alter Ego and Open Ocean project team. A.V. Ezhov and Yu.V. Krasnov were supported by the project No 0228-2019-0004 “Ornithofauna of the northern seas: peculiarities of the nonbreeding season” with the framework of MMBI research plan and the state order for 2109-2021. The work on the Isle of May was supported by the Natural Environment Research Council (Award NE/R016429/1 as part of the UK-SCaPE programme delivering National Capability). ES Hansen was supported by Veiðikortasjóður

Data Availability Statement

Data availability. The data sets developed in the present study and R-code to extract the data are available from the first author. Please visit the SEATRACK website (https://seapop. no/en/seatrack/) for more information.

Keywords

  • Fulmarus glacialis
  • Uria aalge
  • Uria lomvia
  • Alle alle
  • Fratercula arctica
  • marine spatial planning
  • SEATRACK

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