Data from: Geographic structuring of Antarctic penguin populations ...

• Main Authors: Santora, Jarrod, LaRue, Michelle, Ainley, David
• Format: Dataset
• Language: English
• Published: Dryad 2020
• Subjects: polar ecosystem; polynya; penguin colonies; Marine geology; Density-dependence; submarine canyons; Antarctic; Furness; Antarc*
• Online Access: https://dx.doi.org/10.7291/d1nt0s; https://datadryad.org/stash/dataset/doi:10.7291/D1NT0S

We hypothesized that regional spatial organization of Antarctic penguin breeding populations was affected by social factors, i.e., proximity and size of adjacent colonies, and by physical factors, i.e., availability of breeding habitat and proximity of polynyas and submarine canyons where prey is abundant. The hypothesis of Furness & Birkhead (1984), that forage competition and density-dependence affect geographic structure of seabird populations, was tested previously for Antarctic penguins when biologging to quantify colony foraging areas was less common and when assessments of colony size reflected a compendium of historical counts. These data on foraging areas and colony size are now available following 20 years of frequent biologging and real-time satellite data on colony locations and sizes. We prepared a literature summary on the basis of biologging studies to improve assessment of foraging ranges. We collated colony sizes from recent sources and integrated them with data on submarine canyon ... : See Methods and Supplemental Materials for description of data summary and processing. ...