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Dispersal increases local transmission of avian malarial parasites

Perez-Tris, Javier LU and Bensch, Staffan LU (2005) In Ecology Letters 8(8). p.838-845
Abstract
The relationships between dispersal and local transmission rate of parasites are essential to understanding host-parasite coevolution and the emergence and spread of novel disease threats. Here we show that year-round transmission, as opposed to summer transmission, has repeatedly evolved in malarial parasites (genera Plasmodium and Haemoproteus) of a migratory bird. Year-round transmission allows parasites to spread in sympatric host's wintering areas, and hence to colonize distantly located host's breeding areas connected by host-migration movements. Widespread parasites had higher local prevalence, revealing increased transmission, than geographically restricted parasites. Our results show a positive relationship between dispersal and... (More)
The relationships between dispersal and local transmission rate of parasites are essential to understanding host-parasite coevolution and the emergence and spread of novel disease threats. Here we show that year-round transmission, as opposed to summer transmission, has repeatedly evolved in malarial parasites (genera Plasmodium and Haemoproteus) of a migratory bird. Year-round transmission allows parasites to spread in sympatric host's wintering areas, and hence to colonize distantly located host's breeding areas connected by host-migration movements. Widespread parasites had higher local prevalence, revealing increased transmission, than geographically restricted parasites. Our results show a positive relationship between dispersal and local transmission of malarial parasites that is apparently mediated by frequent evolutionary changes in parasite transmission dynamics, which has important implications for the ecology and evolution of infectious diseases. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Ecology Letters
volume
8
issue
8
pages
838 - 845
publisher
Wiley-Blackwell
external identifiers
  • wos:000230335900007
  • scopus:22544461651
ISSN
1461-023X
DOI
10.1111/j.1461-0248.2005.00788.x
language
English
LU publication?
yes
id
46066b8d-dcc6-4a8a-9f8d-dd60f4adf208 (old id 145374)
date added to LUP
2007-06-25 15:35:40
date last changed
2017-10-01 03:46:41
@article{46066b8d-dcc6-4a8a-9f8d-dd60f4adf208,
  abstract     = {The relationships between dispersal and local transmission rate of parasites are essential to understanding host-parasite coevolution and the emergence and spread of novel disease threats. Here we show that year-round transmission, as opposed to summer transmission, has repeatedly evolved in malarial parasites (genera Plasmodium and Haemoproteus) of a migratory bird. Year-round transmission allows parasites to spread in sympatric host's wintering areas, and hence to colonize distantly located host's breeding areas connected by host-migration movements. Widespread parasites had higher local prevalence, revealing increased transmission, than geographically restricted parasites. Our results show a positive relationship between dispersal and local transmission of malarial parasites that is apparently mediated by frequent evolutionary changes in parasite transmission dynamics, which has important implications for the ecology and evolution of infectious diseases.},
  author       = {Perez-Tris, Javier and Bensch, Staffan},
  issn         = {1461-023X},
  language     = {eng},
  number       = {8},
  pages        = {838--845},
  publisher    = {Wiley-Blackwell},
  series       = {Ecology Letters},
  title        = {Dispersal increases local transmission of avian malarial parasites},
  url          = {http://dx.doi.org/10.1111/j.1461-0248.2005.00788.x},
  volume       = {8},
  year         = {2005},
}