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Bird hosts, blood parasites and their vectors - associations uncovered by molecular analyses of blackfly blood meals.

Hellgren, Olof LU ; Bensch, Staffan LU and Malmqvist, B (2008) In Molecular Ecology 17(6). p.1605-1613
Abstract
The level of host specificity of blood-sucking invertebrates may have both ecological and evolutionary implications for the parasites they are transmitting. We used blood meals from wild-caught blackflies for molecular identification of parasites and hosts to examine patterns of host specificity and how these may affect the transmission of avian blood parasites of the genus Leucocytozoon. We found that five different species of ornithophilic blackflies preferred different species of birds when taking their blood meals. Of the blackflies that contained avian blood meals, 62% were infected with Leucocytozoon parasites, consisting of 15 different parasite lineages. For the blackfly species, there was a significant association between the host... (More)
The level of host specificity of blood-sucking invertebrates may have both ecological and evolutionary implications for the parasites they are transmitting. We used blood meals from wild-caught blackflies for molecular identification of parasites and hosts to examine patterns of host specificity and how these may affect the transmission of avian blood parasites of the genus Leucocytozoon. We found that five different species of ornithophilic blackflies preferred different species of birds when taking their blood meals. Of the blackflies that contained avian blood meals, 62% were infected with Leucocytozoon parasites, consisting of 15 different parasite lineages. For the blackfly species, there was a significant association between the host width (measured as the genetic differentiation between the used hosts) and the genetic similarity of the parasites in their blood meals. The absence of similar parasite in blood meals from blackflies with different host preferences is interpreted as a result of the vector-host associations. The observed associations between blackfly species and host species are therefore likely to hinder parasites to be transmitted between different host-groups, resulting in ecologically driven associations between certain parasite lineages and hosts species. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Molecular Ecology
volume
17
issue
6
pages
1605 - 1613
publisher
Wiley-Blackwell
external identifiers
  • pmid:18266623
  • wos:000254703000020
  • scopus:40449117363
ISSN
0962-1083
DOI
10.1111/j.1365-294X.2007.03680.x
language
English
LU publication?
yes
id
d0f68aa4-8ff1-46c1-9034-e0e120353973 (old id 1042075)
date added to LUP
2008-03-11 13:55:15
date last changed
2017-06-25 03:45:35
@article{d0f68aa4-8ff1-46c1-9034-e0e120353973,
  abstract     = {The level of host specificity of blood-sucking invertebrates may have both ecological and evolutionary implications for the parasites they are transmitting. We used blood meals from wild-caught blackflies for molecular identification of parasites and hosts to examine patterns of host specificity and how these may affect the transmission of avian blood parasites of the genus Leucocytozoon. We found that five different species of ornithophilic blackflies preferred different species of birds when taking their blood meals. Of the blackflies that contained avian blood meals, 62% were infected with Leucocytozoon parasites, consisting of 15 different parasite lineages. For the blackfly species, there was a significant association between the host width (measured as the genetic differentiation between the used hosts) and the genetic similarity of the parasites in their blood meals. The absence of similar parasite in blood meals from blackflies with different host preferences is interpreted as a result of the vector-host associations. The observed associations between blackfly species and host species are therefore likely to hinder parasites to be transmitted between different host-groups, resulting in ecologically driven associations between certain parasite lineages and hosts species.},
  author       = {Hellgren, Olof and Bensch, Staffan and Malmqvist, B},
  issn         = {0962-1083},
  language     = {eng},
  number       = {6},
  pages        = {1605--1613},
  publisher    = {Wiley-Blackwell},
  series       = {Molecular Ecology},
  title        = {Bird hosts, blood parasites and their vectors - associations uncovered by molecular analyses of blackfly blood meals.},
  url          = {http://dx.doi.org/10.1111/j.1365-294X.2007.03680.x},
  volume       = {17},
  year         = {2008},
}