Combined influence of meso-scale circulation and bathymetry on the foraging behaviour of a diving predator, the king penguin (Aptenodytes patagonicus)

Abstract

Please cite this article as: Scheffer, A., Trathan, P.N., Edmonston, J.G., Bost, C-A., Combined influence of mesoscale circulation and bathymetry on the foraging behaviour of a diving predator, the king penguin (Aptenodytes patagonicus), Progress in Oceanography (2015), doi: http://dx.doi.org/10.1016/j.pocean. 2015.10.005 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

High inter‐ and intraspecific niche overlap among three sympatrically breeding, closely related seabird species: Generalist foraging as an adaptation to a highly variable environment?

“…Using great circle distance, we furthermore included distance to sea ice edge and distance to shelf break and determined time since sea ice melt. We chose these environmental covariates based on previous literature, which identified their importance in affecting seabird foraging (e.g., Raymond et al, 2015;Scheffer, Trathan, Edmonston, & Bost, 2016).…”

Reply to: ‘The role of ocean dynamics in king penguin range estimation’

“…The link between the ACCc and king penguins' behaviour is probably more complex than argued by Meijers et al, and we claim that empirical data remain a strong and reliable source of information for understanding animal ecology 2,4 . In addition, the biological features of the systems, such as the critical time for foraging during the breeding season (February in our model), must always be integrated into the model.…”

“…Our scope, however, was not to predict the position of the ACCc, but king penguins' breeding and foraging behaviour. Several studies [1][2][3] demonstrated that sea surface temperature (SST) is an accurate predictor of the species' foraging range, and shortterm poleward shifts in the 5 °C isotherm have clearly been linked to decreased breeding success in past decades 4 . King penguins forage where their prey (myctophid fish stock) can be predictably found within average diving depth (200 m).…”

PROTEKER: implementation of a submarine observatory at the Kerguelen Islands (Southern Ocean)

“…The polar front is a key indicator of circulation, surface concentration of nutrients and biogeography in the Southern Ocean, all of which is necessary for the contextualisation of observations, environments and stands. Its proximity to the Kerguelen islands allows the prediction of significant changes in marine life conditions (Scheffer et al, 2016).…”