Multi-colony tracking of two pelagic seabirds with contrasting flight capability illustrates how windscapes shape migratory movements at an ocean-basin scale ...

• Main Authors: Amélineau, Françoise, Tarroux, Arnaud, Lacombe, Simon, Bråthen, Vegard, Descamps, Sebastien, Ekker, Morten, Fauchald, Per, Johansen, Malin, Moe, Børge, Anker-Nilssen, Tycho, Bogdanova, Maria, Bringvor, Ingar, Chastel, Olivier, Christensen-Dalsgaard, Signe, Daunt, Francis, Dehnhard, Nina, Erikstad, Kjell Einar, Ezhov, Aleksey, Gavrilo, Maria, Hansen, Erpur, Harris, Mike P., Helgason, Hálfdán, Langset, Magdalene, Léandri-Breton, Don-Jean, Lorentsen, Svein-Håkon, Merkel, Benjamin, Newell, Mark, Olsen, Bergur, Reiertsen, Tone, Systad, Geir, Thórarinsson, Thorkell, Åström, Jens, Strøm, Hallvard
• Format: Dataset
• Language: English
• Published: Dryad 2023
• Subjects: migration; Wind; animal movement; Bird flight; Rissa tridactyla; Fratercula arctica; FOS Biological sciences; Atlantic puffin; Black-legged Kittiwake; fratercula; North Atlantic; rissa tridactyla
• Online Access: https://dx.doi.org/10.5061/dryad.z34tmpgm6; https://datadryad.org/stash/dataset/doi:10.5061/dryad.z34tmpgm6

Migration is a common trait among many animals allowing the exploitation of spatiotemporally variable resources. It often implies high energetic costs to cover large distances, for example between breeding and wintering grounds. For flying or swimming animals, the adequate use of winds and currents can help reduce the associated energetic costs. Migratory seabirds are good models because they dwell in habitats characterized by strong winds while undertaking very long migrations. We tested the hypothesis that seabirds migrate through areas with favourable winds. To that end, we used a multi-colony geolocator tracking dataset of two North Atlantic seabirds with contrasting flight capabilities, the black-legged kittiwake (Rissa tridactyla) and the Atlantic puffin (Fratercula arctica), and wind data from the ERA5 climate reanalysis model. Both species had on average positive wind support during migration. Their main migratory routes were similar and followed seasonally prevailing winds. The general migratory ... : # Multi-colony tracking of two pelagic seabirds with contrasting flight capability illustrates how windscapes shape migratory movements at an ocean-basin scale [https://doi.org/10.5061/dryad.z34tmpgm6](https://doi.org/10.5061/dryad.z34tmpgm6) The dataset contains processed data for the statistical analyses. ## Description of the data and file structure The two species are abbreviated by ATPU (Atlantic puffin, *Fratercula arctica*) and BLKI (Black-legged kittiwake, *Rissa tridactyla*). **Data used for the cluster analysis: bird\_data\_colony and bird\_data\_year** "bird\_data\_colony\_ATPU.csv" and "bird\_data\_colony\_BLKI.csv" contain one line per colony. These files were used for the cluster analysis. "bird\_data\_year\_ATPU.csv" and "bird\_data\_year\_BLKI.csv" contain one line per colony and per year. These files were used for the figures. Columns: * season: season (autumn or spring) * colony: name of the colony * year2: year, between two breeding seasons (example: 2014\_2015) * ws: wind support (in ...