@article{fdi:010079418,
  title = {{R}aking the ocean surface : new patterns of coordinated motion in seabirds},
  author = {{A}ssali, {C}amille and {B}ez, {N}icolas and {T}remblay, {Y}ann},
  editor = {},
  language = {{ENG}},
  abstract = {{C}oordinated movements of seabirds exploiting a prey patch are known to increase prey encounter and capture rates of individuals. {T}hese behaviours, based on effective cooperation between seabirds, have only been reported at small scale, i.e. the scale of the prey patch. {H}owever, the efficient prey exploitation by seabirds in vast oceans require larger scale processes such as information transfers between individuals. {I}ndeed, information transfers between foraging seabirds (e.g. changes in behaviour) reduce their search cost while increasing their prey encounter rate. {W}hether or not these information transfer processes imply active cooperation is unknown. {U}sing images from fishing boat radars in the eastern tropical {A}tlantic, we show the existence of frequent medium-scale patterns of coordinated flights of seabird groups, consisting in seabird fronts ('rake' patterns) of 0.3-4.4 km width, displacing cohesively over 1.2-10.6 km and lasting between 2 and 19 min. {F}or these rakes to be maintained, seabird groups have to adjust their flight speeds and directions, while they are on average distant of 500 m from each other, what cannot occur by chance. {T}hese findings suggest the existence of collective and coordinated movements in seabirds during prey searching at several kilometres' scale. {T}his potential cooperation between foraging seabird groups brings new insight in the evolutionary trajectories of seabirds life-style.},
  keywords = {foraging strategy ; group behaviour ; radar ; rakes ; synchronised flight ; {ATLANTIQUE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{J}ournal of {A}vian {B}iology},
  volume = {51},
  numero = {6},
  pages = {[13 ]},
  ISSN = {0908-8857},
  year = {2020},
  DOI = {10.1111/jav.02258},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079418},
}