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Avian malaria, ecological host traits and mosquito abundance in southeastern Amazonia

Fecchio, Alan; Ellis, Vincenzo A. LU ; Bell, Jeffrey A.; Andretti, Christian B.; D'Horta, Fernando M.; Silva, Allan M.; Tkach, Vasyl V. and Weckstein, Jason D. (2017) In Parasitology p.1-16
Abstract

Avian malaria is a vector transmitted disease caused by Plasmodium and recent studies suggest that variation in its prevalence across avian hosts is correlated with a variety of ecological traits. Here we examine the relationship between prevalence and diversity of Plasmodium lineages in southeastern Amazonia and: (1) host ecological traits (nest location, nest type, flocking behaviour and diet); (2) density and diversity of avian hosts; (3) abundance and diversity of mosquitoes; and (4) season. We used molecular methods to detect Plasmodium in blood samples from 675 individual birds of 120 species. Based on cytochrome b sequences, we recovered 89 lineages of Plasmodium from 136 infected individuals sampled across seven localities.... (More)

Avian malaria is a vector transmitted disease caused by Plasmodium and recent studies suggest that variation in its prevalence across avian hosts is correlated with a variety of ecological traits. Here we examine the relationship between prevalence and diversity of Plasmodium lineages in southeastern Amazonia and: (1) host ecological traits (nest location, nest type, flocking behaviour and diet); (2) density and diversity of avian hosts; (3) abundance and diversity of mosquitoes; and (4) season. We used molecular methods to detect Plasmodium in blood samples from 675 individual birds of 120 species. Based on cytochrome b sequences, we recovered 89 lineages of Plasmodium from 136 infected individuals sampled across seven localities. Plasmodium prevalence was homogeneous over time (dry season and flooding season) and space, but heterogeneous among 51 avian host species. Variation in prevalence among bird species was not explained by avian ecological traits, density of avian hosts, or mosquito abundance. However, Plasmodium lineage diversity was positively correlated with mosquito abundance. Interestingly, our results suggest that avian host traits are less important determinants of Plasmodium prevalence and diversity in southeastern Amazonia than in other regions in which they have been investigated.

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author
publishing date
type
Contribution to journal
publication status
in press
subject
keywords
Culicidae, Haemosporidian parasites, mosquito diversity, parasite diversity, Plasmodium, vectors
in
Parasitology
pages
16 pages
publisher
Cambridge University Press
external identifiers
  • scopus:85016328380
ISSN
0031-1820
DOI
10.1017/S003118201700035X
language
English
LU publication?
no
id
263fa392-52aa-4bb8-89fe-0581f4263dfd
date added to LUP
2017-05-09 16:56:34
date last changed
2018-04-22 04:28:41
@article{263fa392-52aa-4bb8-89fe-0581f4263dfd,
  abstract     = {<p>Avian malaria is a vector transmitted disease caused by Plasmodium and recent studies suggest that variation in its prevalence across avian hosts is correlated with a variety of ecological traits. Here we examine the relationship between prevalence and diversity of Plasmodium lineages in southeastern Amazonia and: (1) host ecological traits (nest location, nest type, flocking behaviour and diet); (2) density and diversity of avian hosts; (3) abundance and diversity of mosquitoes; and (4) season. We used molecular methods to detect Plasmodium in blood samples from 675 individual birds of 120 species. Based on cytochrome b sequences, we recovered 89 lineages of Plasmodium from 136 infected individuals sampled across seven localities. Plasmodium prevalence was homogeneous over time (dry season and flooding season) and space, but heterogeneous among 51 avian host species. Variation in prevalence among bird species was not explained by avian ecological traits, density of avian hosts, or mosquito abundance. However, Plasmodium lineage diversity was positively correlated with mosquito abundance. Interestingly, our results suggest that avian host traits are less important determinants of Plasmodium prevalence and diversity in southeastern Amazonia than in other regions in which they have been investigated.</p>},
  author       = {Fecchio, Alan and Ellis, Vincenzo A. and Bell, Jeffrey A. and Andretti, Christian B. and D'Horta, Fernando M. and Silva, Allan M. and Tkach, Vasyl V. and Weckstein, Jason D.},
  issn         = {0031-1820},
  keyword      = {Culicidae,Haemosporidian parasites,mosquito diversity,parasite diversity,Plasmodium,vectors},
  language     = {eng},
  month        = {03},
  pages        = {1--16},
  publisher    = {Cambridge University Press},
  series       = {Parasitology},
  title        = {Avian malaria, ecological host traits and mosquito abundance in southeastern Amazonia},
  url          = {http://dx.doi.org/10.1017/S003118201700035X},
  year         = {2017},
}