Winning the arms race: Host-parasite shared evolutionary history reduces infection risks in fish final hosts
Authors: Sheath, D.J., Dick, J.T.A., Dickey, J.W.E., Guo, Z., Andreou, D., Robert Britton, J.
Journal: Biology Letters
Publication Date: 01/07/2018
Volume: 14
Issue: 7
eISSN: 1744-957X
ISSN: 1744-9561
DOI: 10.1098/rsbl.2018.0363
Abstract:Parasite manipulation of intermediate hosts evolves to increase parasite trophic transmission to final hosts, yet counter selection should act on the final host to reduce infection risk and costs. However, determining who wins this arms race and to what extent is challenging. Here, for the first time, comparative functional response analysis quantified final host consumption patterns with respect to intermediate host parasite status. Experiments used two evolutionarily experienced fish hosts and two naive hosts, and their amphipod intermediate hosts of the acanthocephalan parasite Pomphorhynchus tereticollis. The two experienced fish consumed significantly fewer infected than non-infected prey, with lower attack rates and higher handling times towards the former. Conversely, the two naive fish consumed similar numbers of infected and non-infected prey at most densities, with similar attack rates and handling times towards both. Thus, evolutionarily experienced final hosts can reduce their infection risks and costs via reduced intermediate host consumption, with this not apparent in naive hosts.
https://eprints.bournemouth.ac.uk/31064/
Source: Scopus
Winning the arms race: host-parasite shared evolutionary history reduces infection risks in fish final hosts.
Authors: Sheath, D.J., Dick, J.T.A., Dickey, J.W.E., Guo, Z., Andreou, D., Britton, J.R.
Journal: Biol Lett
Publication Date: 07/2018
Volume: 14
Issue: 7
eISSN: 1744-957X
DOI: 10.1098/rsbl.2018.0363
Abstract:Parasite manipulation of intermediate hosts evolves to increase parasite trophic transmission to final hosts, yet counter selection should act on the final host to reduce infection risk and costs. However, determining who wins this arms race and to what extent is challenging. Here, for the first time, comparative functional response analysis quantified final host consumption patterns with respect to intermediate host parasite status. Experiments used two evolutionarily experienced fish hosts and two naive hosts, and their amphipod intermediate hosts of the acanthocephalan parasite Pomphorhynchus tereticollis The two experienced fish consumed significantly fewer infected than non-infected prey, with lower attack rates and higher handling times towards the former. Conversely, the two naive fish consumed similar numbers of infected and non-infected prey at most densities, with similar attack rates and handling times towards both. Thus, evolutionarily experienced final hosts can reduce their infection risks and costs via reduced intermediate host consumption, with this not apparent in naive hosts.
https://eprints.bournemouth.ac.uk/31064/
Source: PubMed
Winning the arms race: host - parasite shared evolutionary history reduces infection risks in fish final hosts
Authors: Sheath, D.J., Dick, J.T.A., Dickey, J.W.E., Guo, Z., Andreou, D., Britton, J.R.
Journal: BIOLOGY LETTERS
Publication Date: 07/2018
Volume: 14
Issue: 7
eISSN: 1744-957X
ISSN: 1744-9561
DOI: 10.1098/rsbl.2018.0363
https://eprints.bournemouth.ac.uk/31064/
Source: Web of Science
Winning the arms race: host–parasite shared evolutionary history reduces infection risks in fish final hosts
Authors: Sheath, D., Dick, J.T.A., Dickey, J.W.E., Guo, Z., Andreou, D., Britton, J.
Journal: Biology Letters
Publication Date: 25/07/2018
Volume: 14
Publisher: The Royal Society
ISSN: 1744-9561
DOI: 10.1098/rsbl.2018.0363
Abstract:Parasite manipulation of intermediate hosts evolves to increase parasite trophic transmission to final hosts, yet counter selection should act on the final host to reduce infection risk and costs. However, determining who wins this arms race and to what extent is challenging. Here, for the first time, comparative functional response analysis quantified final host consumption patterns with respect to intermediate host parasite status. Experiments used two evolutionarily experienced fish hosts and two naive hosts, and their amphipod intermediate hosts of the acanthocephalan parasite Pomphorhynchus tereticollis. The two experienced fish consumed significantly fewer infected than non-infected prey, with lower attack rates and higher handling times towards the former. Conversely, the two naive fish consumed similar numbers of infected and non-infected prey at most densities, with similar attack rates and handling times towards both. Thus, evolutionarily experienced final hosts can reduce their infection risks and costs via reduced intermediate host consumption, with this not apparent in naive hosts.
https://eprints.bournemouth.ac.uk/31064/
Source: Manual
Winning the arms race: host-parasite shared evolutionary history reduces infection risks in fish final hosts.
Authors: Sheath, D.J., Dick, J.T.A., Dickey, J.W.E., Guo, Z., Andreou, D., Britton, J.R.
Journal: Biology letters
Publication Date: 07/2018
Volume: 14
Issue: 7
Pages: 20180363
eISSN: 1744-957X
ISSN: 1744-9561
DOI: 10.1098/rsbl.2018.0363
Abstract:Parasite manipulation of intermediate hosts evolves to increase parasite trophic transmission to final hosts, yet counter selection should act on the final host to reduce infection risk and costs. However, determining who wins this arms race and to what extent is challenging. Here, for the first time, comparative functional response analysis quantified final host consumption patterns with respect to intermediate host parasite status. Experiments used two evolutionarily experienced fish hosts and two naive hosts, and their amphipod intermediate hosts of the acanthocephalan parasite Pomphorhynchus tereticollis The two experienced fish consumed significantly fewer infected than non-infected prey, with lower attack rates and higher handling times towards the former. Conversely, the two naive fish consumed similar numbers of infected and non-infected prey at most densities, with similar attack rates and handling times towards both. Thus, evolutionarily experienced final hosts can reduce their infection risks and costs via reduced intermediate host consumption, with this not apparent in naive hosts.
https://eprints.bournemouth.ac.uk/31064/
Source: Europe PubMed Central