by Lion S., van Baalen M. & Wilson W. G.
Abstract:
We investigate the evolution of manipulation of host dispersal behaviour by parasites using spatially explicit individual-based simulations. We find that when dispersal is local, parasites always gain from increasing their hosts' dispersal rate, although the evolutionary outcome is determined by the costs-to-benefits ratio. However, when dispersal can be non-local, we show that parasites investing in an intermediate dispersal distance of their hosts are favoured even when the manipulation is not costly, due to the intrinsic spatial dynamics of the host-parasite interaction. Our analysis highlights the crucial importance of ecological spatial dynamics in evolutionary processes and reveals the theoretical possibility that parasites could manipulate their hosts' dispersal.
Reference:
Lion S., van Baalen M. & Wilson W. G. (2006) The evolution of parasite manipulation of host dispersal. Proceedings of the Royal Society of London B: Biological Sciences. 273: 1063-1071.
Bibtex Entry:
@Article{LionEtal2006,
Author = {Lion, Sébastien and van Baalen, Minus and Wilson,
William G.},
Title = {The evolution of parasite manipulation of host
dispersal.},
Journal = {Proceedings of the Royal Society of London B: Biological Sciences},
doi = {10.1098/rspb.2005.3412},
Volume = {273},
Pages = {1063-1071},
URL = {pub/LionEtal2006.pdf},
keywords = {space, dispersal, virulence},
Abstract = {We investigate the evolution of manipulation of host
dispersal behaviour by parasites using spatially
explicit individual-based simulations. We find that
when dispersal is local, parasites always gain from
increasing their hosts' dispersal rate, although the
evolutionary outcome is determined by the
costs-to-benefits ratio. However, when dispersal can be
non-local, we show that parasites investing in an
intermediate dispersal distance of their hosts are
favoured even when the manipulation is not costly, due
to the intrinsic spatial dynamics of the host-parasite
interaction. Our analysis highlights the crucial
importance of ecological spatial dynamics in
evolutionary processes and reveals the theoretical
possibility that parasites could manipulate their
hosts' dispersal.},
year = {2006}
}