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Variation in immune parameters and disease prevalence among Lesser Black-Backed Gulls (Larus fuscus sp.) with different migratory strategies

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Arriero Higueras, Elena and Müller, Inge and Juvaste, Risto and Martínez, Francisco Javier and Bertolero, Albert (2015) Variation in immune parameters and disease prevalence among Lesser Black-Backed Gulls (Larus fuscus sp.) with different migratory strategies. Plos One, 10 (2). pp. 1-15. ISSN ESSN: 1932-6203

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Official URL: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0118279



Abstract

The ability to control infections is a key trait for migrants that must be balanced against other costly features of the migratory life. In this study we explored the links between migration and disease ecology by examining natural variation in parasite exposure and immunity in several populations of Lesser Black-backed Gulls (Larus fuscus) with different migratory strategies. We found higher activity of natural antibodies in long distance migrants from the nominate subspecies L.f.fuscus. Circulating levels of IgY showed large variation at the population level, while immune parameters associated with antimicrobial activity showed extensive variation at the individual level irrespective of population or migratory strategy. Pathogen prevalence showed large geographical variation. However, the seroprevalence of one of the gull-specific subtypes of avian influenza (H16) was associated to the migratory strategy, with lower prevalence among the long-distance migrants, suggesting that migration may play a role in disease dynamics of certain pathogens at the population level.


Item Type:Article
Uncontrolled Keywords:Animal migration; Gulls; Antibodies; Avian influenza; Parasitic diseases Haptoglobins Pathogens Spain
Subjects:Medical sciences > Veterinary > Parasitology
Medical sciences > Biology > Birds
ID Code:42012
Deposited On:30 Mar 2017 11:14
Last Modified:10 Dec 2018 15:25

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