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Malaria infections reinforce competitive asymmetry between two Ficedula flycatchers in a recent contact zone

Kulma, Katarzyna; Low, Matthew; Bensch, Staffan LU and Qvarnstrom, Anna (2013) In Molecular Ecology 22(17). p.4591-4601
Abstract
Parasites may influence the outcome of interspecific competition between closely related host species through lower parasite virulence in the host with which they share the longer evolutionary history. We tested this idea by comparing the prevalence of avian malaria (Haemosporidia) lineages and their association with survival in pied and collared flycatchers (Ficedula hypoleuca and F. albicollis) breeding in a recent contact zone on the Swedish island of Oland. A nested PCR protocol amplifying haemosporidian fragments of mtDNA was used to screen the presence of malaria lineages in 1048 blood samples collected during 6 years. Competitively inferior pied flycatchers had a higher prevalence of blood parasites, including the lineages that were... (More)
Parasites may influence the outcome of interspecific competition between closely related host species through lower parasite virulence in the host with which they share the longer evolutionary history. We tested this idea by comparing the prevalence of avian malaria (Haemosporidia) lineages and their association with survival in pied and collared flycatchers (Ficedula hypoleuca and F. albicollis) breeding in a recent contact zone on the Swedish island of Oland. A nested PCR protocol amplifying haemosporidian fragments of mtDNA was used to screen the presence of malaria lineages in 1048 blood samples collected during 6 years. Competitively inferior pied flycatchers had a higher prevalence of blood parasites, including the lineages that were shared between the two flycatcher species. Multistate mark-recapture models revealed a lower survival of infected versus uninfected female pied flycatchers, while no such effects were detected in male pied flycatchers or in collared flycatchers of either sex. Our results show that a comparatively new host, the collared flycatcher, appears to be less susceptible to a local northern European malarial lineage where the collared flycatchers have recently expanded their distribution. Pied flycatchers experience strong reproductive interference from collared flycatchers, and the additional impact of species-specific blood parasite effects adds to this competitive exclusion. These results support the idea that parasites can strongly influence the outcome of interspecific competition between closely related host species, but that the invading species need not necessarily be more susceptible to local parasites. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
annual survival, apparent competition, Haemoproteus, Plasmodium
in
Molecular Ecology
volume
22
issue
17
pages
4591 - 4601
publisher
Wiley-Blackwell
external identifiers
  • wos:000323506400018
  • scopus:84883260495
ISSN
0962-1083
DOI
10.1111/mec.12409
project
Malaria in birds
BECC
language
English
LU publication?
yes
id
ee0e49cb-563e-4901-b029-806d9d4d7990 (old id 4025746)
date added to LUP
2013-10-08 12:17:45
date last changed
2019-06-11 01:29:09
@article{ee0e49cb-563e-4901-b029-806d9d4d7990,
  abstract     = {Parasites may influence the outcome of interspecific competition between closely related host species through lower parasite virulence in the host with which they share the longer evolutionary history. We tested this idea by comparing the prevalence of avian malaria (Haemosporidia) lineages and their association with survival in pied and collared flycatchers (Ficedula hypoleuca and F. albicollis) breeding in a recent contact zone on the Swedish island of Oland. A nested PCR protocol amplifying haemosporidian fragments of mtDNA was used to screen the presence of malaria lineages in 1048 blood samples collected during 6 years. Competitively inferior pied flycatchers had a higher prevalence of blood parasites, including the lineages that were shared between the two flycatcher species. Multistate mark-recapture models revealed a lower survival of infected versus uninfected female pied flycatchers, while no such effects were detected in male pied flycatchers or in collared flycatchers of either sex. Our results show that a comparatively new host, the collared flycatcher, appears to be less susceptible to a local northern European malarial lineage where the collared flycatchers have recently expanded their distribution. Pied flycatchers experience strong reproductive interference from collared flycatchers, and the additional impact of species-specific blood parasite effects adds to this competitive exclusion. These results support the idea that parasites can strongly influence the outcome of interspecific competition between closely related host species, but that the invading species need not necessarily be more susceptible to local parasites.},
  author       = {Kulma, Katarzyna and Low, Matthew and Bensch, Staffan and Qvarnstrom, Anna},
  issn         = {0962-1083},
  keyword      = {annual survival,apparent competition,Haemoproteus,Plasmodium},
  language     = {eng},
  number       = {17},
  pages        = {4591--4601},
  publisher    = {Wiley-Blackwell},
  series       = {Molecular Ecology},
  title        = {Malaria infections reinforce competitive asymmetry between two Ficedula flycatchers in a recent contact zone},
  url          = {http://dx.doi.org/10.1111/mec.12409},
  volume       = {22},
  year         = {2013},
}