PeerJ Author 235 Points Contributions by role Author 235 Contributions by subject area Ecology Parasitology Veterinary Medicine Zoology Statistics Population Biology Ólafur K Nielsen PeerJ Author Summary Ecology PeerJ Contributions Articles 2 August 24, 2022 Identifying sources of variation in parasite aggregation André Morrill, Ólafur K. Nielsen, Karl Skírnisson, Mark R. Forbes https://doi.org/10.7717/peerj.13763 PubMed 36039371 November 23, 2021 Survival rates of adult and juvenile gyrfalcons in Iceland: estimates and drivers Frédéric Barraquand, Ólafur K. Nielsen https://doi.org/10.7717/peerj.12404 PubMed 34900413