PMID- 25461020 OWN - NLM STAT- MEDLINE DCOM- 20150828 LR - 20220311 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 505 DP - 2015 Feb 1 TI - Corticosterone, prolactin and egg neglect behavior in relation to mercury and legacy POPs in a long-lived Antarctic bird. PG - 180-8 LID - S0048-9697(14)01446-6 [pii] LID - 10.1016/j.scitotenv.2014.10.008 [doi] AB - Seabirds often have high loads of contaminants. These contaminants have endocrine disrupting properties but their relationships with some endocrine mechanisms are still poorly investigated in free-living organisms. This is the case for the stress response which shifts energy investment away from reproduction and redirects it towards survival. In birds, this stress response is achieved through a release of corticosterone and is also accompanied by a decrease in circulating prolactin, an anterior pituitary hormone widely involved in regulating parental cares. We measured blood concentrations of some legacy persistent organic pollutants (POPs) and mercury (Hg) and examined their relationships with the corticosterone and prolactin responses of known-age (9-46 years old) incubating snow petrels (Pagodroma nivea) to a standardized capture/handling stress protocol. In this Antarctic seabird, we also investigated whether high contaminant burden correlates with a higher occurrence of egg neglect, a frequently observed behavior in snow petrels. POPs and Hg were unrelated to age. Stress-induced corticosterone concentrations were positively related to POPs in both sexes, and stress-induced prolactin concentrations were negatively related to Hg in males. Egg-neglect behavior was not related to POPs burden, but males with higher Hg concentrations were more likely to neglect their egg. This suggests that in birds, relationships between age and contaminants are complex and that even low to moderate concentrations of POPs and Hg are significantly related to hormonal secretion. In this Antarctic species, exposure to legacy POPs and Hg could make individuals more susceptible to environmental stressors such as ongoing disturbances in Polar Regions. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Tartu, S AU - Tartu S AD - UMR 7372, CNRS-Universite de La Rochelle, Villiers-en-bois, France. Electronic address: tartu.sabrina@gmail.com. FAU - Angelier, F AU - Angelier F AD - UMR 7372, CNRS-Universite de La Rochelle, Villiers-en-bois, France. FAU - Wingfield, J C AU - Wingfield JC AD - Department of Neurobiology, Physiology and Behavior, University of CA, Davis, USA. FAU - Bustamante, P AU - Bustamante P AD - Littoral Environnement et Societes (LIENSs), UMR 7266 CNRS-Universite de la Rochelle, La Rochelle, France. FAU - Labadie, P AU - Labadie P AD - Universite de Bordeaux, EPOC/LPTC, UMR 5805, F-33400 Talence, France; CNRS, EPOC/LPTC, UMR 5805, F-33400 Talence, France. FAU - Budzinski, H AU - Budzinski H AD - Universite de Bordeaux, EPOC/LPTC, UMR 5805, F-33400 Talence, France; CNRS, EPOC/LPTC, UMR 5805, F-33400 Talence, France. FAU - Weimerskirch, H AU - Weimerskirch H AD - UMR 7372, CNRS-Universite de La Rochelle, Villiers-en-bois, France. FAU - Bustnes, J O AU - Bustnes JO AD - Norwegian Institute for Nature Research, FRAM - High North Research Centre on Climate and the Environment, NO-9296 Tromso, Norway. FAU - Chastel, O AU - Chastel O AD - UMR 7372, CNRS-Universite de La Rochelle, Villiers-en-bois, France. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141014 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Environmental Pollutants) RN - 9002-62-4 (Prolactin) RN - FXS1BY2PGL (Mercury) RN - W980KJ009P (Corticosterone) SB - IM MH - Animals MH - Behavior, Animal/*drug effects MH - Birds/*physiology MH - Corticosterone/*blood MH - Environmental Monitoring MH - Environmental Pollutants/blood/*toxicity MH - Female MH - Male MH - Mercury/blood/*toxicity MH - Prolactin/*blood MH - *Stress, Physiological OTO - NOTNLM OT - Age OT - Mercury OT - Persistent organic pollutants OT - Reproduction OT - Snow petrel EDAT- 2014/12/03 06:00 MHDA- 2015/09/01 06:00 CRDT- 2014/12/03 06:00 PHST- 2014/07/10 00:00 [received] PHST- 2014/10/01 00:00 [revised] PHST- 2014/10/02 00:00 [accepted] PHST- 2014/12/03 06:00 [entrez] PHST- 2014/12/03 06:00 [pubmed] PHST- 2015/09/01 06:00 [medline] AID - S0048-9697(14)01446-6 [pii] AID - 10.1016/j.scitotenv.2014.10.008 [doi] PST - ppublish SO - Sci Total Environ. 2015 Feb 1;505:180-8. doi: 10.1016/j.scitotenv.2014.10.008. Epub 2014 Oct 14.