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Temporal dynamics and diversity of avian malaria parasites in a single host species

Bensch, Staffan LU ; Waldenström, Jonas LU ; Jonzén, Niclas LU ; Westerdahl, Helena LU ; Hansson, Bengt LU ; Sejberg, Douglas LU and Hasselquist, Dennis LU (2007) In Journal of Animal Ecology 76(1). p.112-122
Abstract
We have used molecular methods to unravel a remarkable diversity of parasite lineages in a long-term population study of great reed warblers Acrocephalus arundinaceus that was not foreseen from traditional microscopic examination of blood smears. This diversity includes eight Haemoproteus and 10 Plasmodium lineages of which most probably represent good biological species.Contrary to expectation, the relative frequency of parasite lineages seemed not to change over the 17-year study period and we found no effects of the parasites on a male secondary sexual ornament (song repertoire size) and two measures of fitness (adult survival and production of recruited offspring).We discuss whether the absence of fitness consequences of the parasites... (More)
We have used molecular methods to unravel a remarkable diversity of parasite lineages in a long-term population study of great reed warblers Acrocephalus arundinaceus that was not foreseen from traditional microscopic examination of blood smears. This diversity includes eight Haemoproteus and 10 Plasmodium lineages of which most probably represent good biological species.Contrary to expectation, the relative frequency of parasite lineages seemed not to change over the 17-year study period and we found no effects of the parasites on a male secondary sexual ornament (song repertoire size) and two measures of fitness (adult survival and production of recruited offspring).We discuss whether the absence of fitness consequences of the parasites might relate to the fact that we have studied the host at the breeding sites in Europe, whereas the transmission seems to take place at the wintering sites in Africa, where the naive birds encounter the parasites for the first time and the resulting primary infections likely make them sicker than during the chronic phase of the infection.The prevalence of the three most common lineages appeared to fluctuate in parallel with a periodicity of approximately 3-4 years. Theoretical models based on intrinsic interactions between parasite antigen and host immune genes cannot explain such dynamics, suggesting that knowledge of extrinsic parameters such as vector distribution and alternative hosts are required to understand these patterns. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Plasmodium, coevolution, host-parasite, Acrocephalus arundinaceus, Haemproteus, sexual selection, cytochrome b
in
Journal of Animal Ecology
volume
76
issue
1
pages
112 - 122
publisher
Federation of European Neuroscience Societies and Blackwell Publishing Ltd
external identifiers
  • wos:000242994100013
  • scopus:33845869318
ISSN
1365-2656
DOI
10.1111/j.1365-2656.2006.01176.x
language
English
LU publication?
yes
id
cfba38be-178b-4bd6-a00a-bb1b19096fe8 (old id 167013)
date added to LUP
2007-06-26 07:07:10
date last changed
2017-10-29 03:25:42
@article{cfba38be-178b-4bd6-a00a-bb1b19096fe8,
  abstract     = {We have used molecular methods to unravel a remarkable diversity of parasite lineages in a long-term population study of great reed warblers Acrocephalus arundinaceus that was not foreseen from traditional microscopic examination of blood smears. This diversity includes eight Haemoproteus and 10 Plasmodium lineages of which most probably represent good biological species.Contrary to expectation, the relative frequency of parasite lineages seemed not to change over the 17-year study period and we found no effects of the parasites on a male secondary sexual ornament (song repertoire size) and two measures of fitness (adult survival and production of recruited offspring).We discuss whether the absence of fitness consequences of the parasites might relate to the fact that we have studied the host at the breeding sites in Europe, whereas the transmission seems to take place at the wintering sites in Africa, where the naive birds encounter the parasites for the first time and the resulting primary infections likely make them sicker than during the chronic phase of the infection.The prevalence of the three most common lineages appeared to fluctuate in parallel with a periodicity of approximately 3-4 years. Theoretical models based on intrinsic interactions between parasite antigen and host immune genes cannot explain such dynamics, suggesting that knowledge of extrinsic parameters such as vector distribution and alternative hosts are required to understand these patterns.},
  author       = {Bensch, Staffan and Waldenström, Jonas and Jonzén, Niclas and Westerdahl, Helena and Hansson, Bengt and Sejberg, Douglas and Hasselquist, Dennis},
  issn         = {1365-2656},
  keyword      = {Plasmodium,coevolution,host-parasite,Acrocephalus arundinaceus,Haemproteus,sexual selection,cytochrome b},
  language     = {eng},
  number       = {1},
  pages        = {112--122},
  publisher    = {Federation of European Neuroscience Societies and Blackwell Publishing Ltd},
  series       = {Journal of Animal Ecology},
  title        = {Temporal dynamics and diversity of avian malaria parasites in a single host species},
  url          = {http://dx.doi.org/10.1111/j.1365-2656.2006.01176.x},
  volume       = {76},
  year         = {2007},
}