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Ecological determinants of avian malaria infections : An integrative analysis at landscape, mosquito and vertebrate community levels

Ferraguti, Martina LU ; Martínez-de la Puente, Josué LU ; Bensch, Staffan LU ; Roiz, David; Ruiz, Santigo; Viana, Duarte S.; Soriguer, Ramon C. and Figuerola, Jordi (2018) In Journal of Animal Ecology
Abstract

Vector and host communities, as well as habitat characteristics, may have important but different impacts on the prevalence, richness and evenness of vector-borne parasites. We investigated the relative importance of (1) the mosquito community composition, (2) the vertebrate community composition and (3) landscape characteristics on the prevalence, richness and evenness of avian Plasmodium. We hypothesized that parasite prevalence will be more affected by vector-related parameters, while host parameters should be also important to explain Plasmodium richness and evenness. We sampled 2,588 wild house sparrows (Passer domesticus) and 340,829 mosquitoes, and we performed vertebrate censuses at 45 localities in the Southwest of Spain. These... (More)

Vector and host communities, as well as habitat characteristics, may have important but different impacts on the prevalence, richness and evenness of vector-borne parasites. We investigated the relative importance of (1) the mosquito community composition, (2) the vertebrate community composition and (3) landscape characteristics on the prevalence, richness and evenness of avian Plasmodium. We hypothesized that parasite prevalence will be more affected by vector-related parameters, while host parameters should be also important to explain Plasmodium richness and evenness. We sampled 2,588 wild house sparrows (Passer domesticus) and 340,829 mosquitoes, and we performed vertebrate censuses at 45 localities in the Southwest of Spain. These localities included urban, rural and natural landscapes that were characterized by several habitat variables. Twelve Plasmodium lineages were identified in house sparrows corresponding to three major clades. Variation partitioning showed that landscape characteristics explained the highest fraction of variation in all response variables (21.0%-44.8%). Plasmodium prevalence was in addition explained by vector-related variables (5.4%) and its interaction with landscape (10.2%). Parasite richness and evenness were mostly explained by vertebrate community-related variables. The structuring role of landscape characteristics in vector and host communities was a key factor in determining parasite prevalence, richness and evenness, although the role of each factor differed according to the parasite parameters studied. These results show that the biotic and abiotic contexts are important to explain the transmission dynamics of mosquito-borne pathogens in the wild.

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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Bird and mammal community, Environmental predictors, Mosquito community composition, NDVI, Plasmodium, Vector-borne disease, Water reservoir
in
Journal of Animal Ecology
publisher
Federation of European Neuroscience Societies and Blackwell Publishing Ltd
external identifiers
  • scopus:85042585834
ISSN
0021-8790
DOI
10.1111/1365-2656.12805
language
English
LU publication?
yes
id
559f98d1-3243-4720-94eb-6c47c512bc60
date added to LUP
2018-03-09 10:49:47
date last changed
2018-05-29 10:39:13
@article{559f98d1-3243-4720-94eb-6c47c512bc60,
  abstract     = {<p>Vector and host communities, as well as habitat characteristics, may have important but different impacts on the prevalence, richness and evenness of vector-borne parasites. We investigated the relative importance of (1) the mosquito community composition, (2) the vertebrate community composition and (3) landscape characteristics on the prevalence, richness and evenness of avian Plasmodium. We hypothesized that parasite prevalence will be more affected by vector-related parameters, while host parameters should be also important to explain Plasmodium richness and evenness. We sampled 2,588 wild house sparrows (Passer domesticus) and 340,829 mosquitoes, and we performed vertebrate censuses at 45 localities in the Southwest of Spain. These localities included urban, rural and natural landscapes that were characterized by several habitat variables. Twelve Plasmodium lineages were identified in house sparrows corresponding to three major clades. Variation partitioning showed that landscape characteristics explained the highest fraction of variation in all response variables (21.0%-44.8%). Plasmodium prevalence was in addition explained by vector-related variables (5.4%) and its interaction with landscape (10.2%). Parasite richness and evenness were mostly explained by vertebrate community-related variables. The structuring role of landscape characteristics in vector and host communities was a key factor in determining parasite prevalence, richness and evenness, although the role of each factor differed according to the parasite parameters studied. These results show that the biotic and abiotic contexts are important to explain the transmission dynamics of mosquito-borne pathogens in the wild.</p>},
  author       = {Ferraguti, Martina and Martínez-de la Puente, Josué and Bensch, Staffan and Roiz, David and Ruiz, Santigo and Viana, Duarte S. and Soriguer, Ramon C. and Figuerola, Jordi},
  issn         = {0021-8790},
  keyword      = {Bird and mammal community,Environmental predictors,Mosquito community composition,NDVI,Plasmodium,Vector-borne disease,Water reservoir},
  language     = {eng},
  month        = {03},
  publisher    = {Federation of European Neuroscience Societies and Blackwell Publishing Ltd},
  series       = {Journal of Animal Ecology},
  title        = {Ecological determinants of avian malaria infections : An integrative analysis at landscape, mosquito and vertebrate community levels},
  url          = {http://dx.doi.org/10.1111/1365-2656.12805},
  year         = {2018},
}