Immune function and organochlorine pollutants in arctic breeding glaucous gullsBustnes, JO; Hanssen, SA; Folstad, I; Erikstad, KE; Hasselquist, Dennis; Skaare, JU General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. (PCB 101, 99, 118, 153, 138, 180, and 170). There were significant or near significant positive relationships (0.1 Ͼ p Ͼ 0.001) between most persistent OCs and the levels of heterophils in the blood for both sexes in 1997 and for male gulls in 2001. Similarly, levels of all persistent OCs and lymphocytes were positively related (0.1 Ͼ p Ͼ 0.001) in both sexes in 1997. This suggests that OCs are causing alterations to immune systems, which may decrease their efficiency and make the birds more susceptible to parasites and diseases. In female gulls, the antibody response to the diphtheria toxoid was significant and negative for HCB (p Ͻ0.01) and weaker, but significant, for oxychlordane (p Ͻ0.05), suggesting that OCs were causing an impairment of the humoral immunity. Various OCs have been linked to negative effects in our study population, including decreased survival and reproduction, and this study suggests that such compounds also affect immune status and function.
Immune Function and Organochlorine Pollutants in Arctic Breeding Glaucous Gulls