NDLI: Biogeographical patterns and co-occurrence of pathogenic infection across island populations of Berthelot’s pipit (Anthus berthelotii)

Content Provider	Springer Nature Link
Author	Spurgin, Lewis G. Illera, Juan Carlos Padilla, David P. Richardson, David S.
Copyright Year	2011
Abstract	Pathogens can exert strong selective forces upon host populations. However, before we can make any predictions about the consequences of pathogen-mediated selection, we first need to determine whether patterns of pathogen distribution are consistent over spatiotemporal scales. We used molecular techniques to screen for a variety of blood pathogens (avian malaria, pox and trypanosomes) over a three-year time period across 13 island populations of the Berthelot’s pipit (Anthus berthelotii). This species has only recently dispersed across its range in the North Atlantic, with little subsequent migration, providing an ideal opportunity to examine the causes and effects of pathogenic infection in populations in the early stages of differentiation. We screened 832 individuals, and identified two strains of Plasmodium, four strains of Leucocytozoon, and one pox strain. We found strong differences in pathogen prevalence across populations, ranging from 0 to 65%, and while some fluctuations in prevalence occurred, these differences were largely stable over the time period studied. Smaller, more isolated islands harboured fewer pathogen strains than larger, less isolated islands, indicating that at the population level, colonization and extinction play an important role in determining pathogen distribution. Individual-level analyses confirmed the island effect, and also revealed a positive association between Plasmodium and pox infection, which could have arisen due to dual transmission of the pathogens by the same vectors, or because one pathogen lowers resistance to the other. Our findings, combined with an effect of infection on host body condition, suggest that Berthelot’s pipits are subject to different levels of pathogen-mediated selection both across and within populations, and that these selective pressures are consistent over time.
Starting Page	691
Ending Page	701
Page Count	11
File Format	PDF
ISSN	00298549
Journal	Oecologia
Volume Number	168
Issue Number	3
e-ISSN	14321939
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-10-09
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Malaria Pox Island Bird Species–area relationship Plant Sciences Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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ORIGINAL PAPER Genetic characterization, distribution and prevalence of avian pox and avian malaria in the Berthelot’s pipit (Anthus berthelotii) in Macaronesia (2008)

Data from: Adaptive landscape genetics and malaria across divergent island bird populations (Dataset)

Adaptation and differentiation across island populations of Berthelot's pipit (Anthus berthelotii)

Data from: Genomic associations with bill length and disease reveal drift and selection across island bird populations (Dataset)

454 screening of individual MHC variation in an endemic island passerine

Genetic characterization, distribution and prevalence of avian pox and avian malaria in the Berthelot’s pipit (Anthus berthelotii) in Macaronesia

454 screening of individual MHC variation in an endemic island passerine

Data from: Drift, not selection, shapes toll-like receptor variation among oceanic island populations (Dataset)

Data from: Landscape-scale variation in an anthropogenic factor shapes immune gene variation within a wild population (Dataset)

Biogeographical patterns and co-occurrence of pathogenic infection across island populations of Berthelot’s pipit (Anthus berthelotii)

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ORIGINAL PAPER Genetic characterization, distribution and prevalence of avian pox and avian malaria in the Berthelot’s pipit (Anthus berthelotii) in Macaronesia (2008)

Data from: Adaptive landscape genetics and malaria across divergent island bird populations (Dataset)

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454 screening of individual MHC variation in an endemic island passerine

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Biogeographical patterns and co-occurrence of pathogenic infection across island populations of Berthelot’s pipit (Anthus berthelotii)