Data from: Intercolony movement of pre-breeding seabirds over oceanic scales: implications of cryptic age-classes for conservation and metapopulation dynamics ...

• Main Authors: Bicknell, Anthony W. J., Knight, Mairi E., Bilton, David T., Campbell, Maria, Reid, James B., Newton, Jason, Votier, Stephen C.
• Format: Dataset
• Language: English
• Published: Dryad 2014
• Subjects: metapopulation; Oceanodroma leucorhoa; Extinction risk; Leach's storm-petrel; Canada; Iceland; North Atlantic
• Online Access: https://dx.doi.org/10.5061/dryad.q2610; https://datadryad.org/stash/dataset/doi:10.5061/dryad.q2610

Aim: Demographic linkage between subpopulations plays a critical role in population processes. Metapopulation dynamics, however, remains one of the most poorly understood aspects of population biology. This is especially true for small, pelagic seabirds because their discrete subpopulations are located on offshore islands, separated by vast areas of open ocean, making monitoring logistically challenging. Seabird populations often contain large numbers of immature pre-breeders that may be important for subpopulation connectivity and demography, but are poorly studied. Here we provide evidence for intercolony movement of pre-breeding Leach's storm-petrels Oceanodroma leucorhoa among three colonies spanning the North Atlantic Ocean. We discuss their influence on metapopulation dynamics and the extinction risk of a subpopulation under threat from extreme predation. Location: North Atlantic Ocean Islands (Scotland, Canada & Iceland). Methods: We use a novel application of Bayesian stable isotope mixing models ... : Bicknell et al - Inter-colony movement of pre-breeding seabirds - Supplementary DataRaw stable isotope values of Leach's storm-petrel blood samples and calanus copepod CPR samples. Mixing model parameters for the original and sensitivity models with results of models comparison.Random sampling process and calculations. ...