TY - JOUR AU - C AU - r AU - i AU - s AU - t AU - o AU - f AU - a AU - AU - R AU - b AU - n AU - , AU - B AU - e AU - l AU - G AU - g AU - A AU - c AU - d AU - é AU - z AU - L AU - M AU - h AU - Y AU - v AU - P AU - u AU - J AU - . AU - S AU - N AU - T AU - W AU - D AU - Z AU - E AU - m AU - & AU - PY - 2016// TI - Full circumpolar migration ensures evolutionary unity in the Emperor penguin JO - Nature communications SP - 11842 VL - 7 N2 - Defining reliable demographic models is essential to understand the threats of ongoing environmental change. Yet, in the most remote and threatened areas, models are often based on the survey of a single population, assuming stationarity and independence in population responses. This is the case for the Emperor penguin Aptenodytes forsteri, a flagship Antarctic species that may be at high risk continent-wide before 2100. Here, using genome-wide data from the whole Antarctic continent, we reveal that this top-predator is organized as one single global population with a shared demography since the late Quaternary. We refute the view of the local population as a relevant demographic unit, and highlight that (i) robust extinction risk estimations are only possible by including dispersal rates and (ii) colony-scaled population size is rather indicative of local stochastic events, whereas the species’ response to global environmental change is likely to follow a shared evolutionary trajectory. SN - 2041-1723 UR - http://dx.doi.org/10.1038/ncomms11842 N1 - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=6532), last updated on Sat, 29 Jun 2024 10:49:23 +0200 ID - &67_etal2016 ER -