Data from: Sex-specific effects of fisheries and climate on the demography of sexually dimorphic seabirds ...

• Main Authors: Gianuca, Dimas, Votier, Stephen C., Pardo, Deborah, Wood, Andrew G., Sherley, Richard B., Ireland, Louise, Choquet, Remi, Pradel, Roger, Townley, Stuart, Forcada, Jaume, Tuck, Geoffrey N., Phillips, Richard A.
• Format: Dataset
• Language: English
• Published: Dryad 2019
• Subjects: giant petrels; sex-specific effects; sexual size-dimorphism; Macronectes giganteus; Macronectes halli; Bird Island; Giganteus; Giant Petrels; South Atlantic Ocean
• Online Access: https://dx.doi.org/10.5061/dryad.37qt6nm; https://datadryad.org/stash/dataset/doi:10.5061/dryad.37qt6nm

1. Many animal taxa exhibit sex-specific variation in ecological traits, such as foraging and distribution. These differences could result in sex-specific responses to change, but such demographic effects are poorly understood. 2. Here we test for sex-specific differences in the demography of northern (NGP, Macronectes halli) and southern (SGP, M. giganteus) giant petrels - strongly sexually size-dimorphic birds that breed sympatrically at South Georgia, South Atlantic Ocean. Both species feed at sea or on carrion on land, but larger males (30% heavier) are more reliant on terrestrial foraging than the more pelagic females. Using multi-event mark-recapture models we examine the impacts of long-term changes in environmental conditions and commercial fishing on annual adult survival and use two-sex matrix population models to forecast future trends. 3. As expected, survival of male NGP was positively affected by carrion availability, but negatively affected by zonal winds. Female survival was positively ... : Northern giant petrels encounter historiesThe files contain the individual capture-mark-recapture encounter histories of northern giant petrels breeding at Bird Island (South Georgia), from 2000 to 2014 breeding seasons, where “0” denotes not encountered, “1” encountered as a successful breeder and “2” encountered as a failed breeder. The 16th and 17th columns indicate if a bird is a male or a female, respectively..NGP_encounter_histories.txtSouthern giant petrels encounter historiesThe files contain the individual capture-mark-recapture encounter histories of southern giant petrels breeding at Bird Island (South Georgia), from 2000 to 2014 breeding seasons, where “0” denotes not encountered, “1” encountered as a successful breeder and “2” encountered as a failed breeder. The 16th and 17th columns indicate if a bird is a male or a female, respectively..SGP_encounter_histories.txt ...