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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F13%3A00420948%21RIV14-AV0-60077344
rdf:type
n13:Vysledek skos:Concept
dcterms:description
Gene flow maintains the genetic integrity of species over large spatial scales, and dispersal maintains gene flow among separate populations. However, body size is a strong correlate of dispersal ability, with small-bodied organisms being poor dispersers. For parasites, small size may be compensated by using their hosts for indirect dispersal. In trematodes, some species use only aquatic hosts to complete their life cycle, whereas others use birds or mammals as final hosts, allowing dispersal among separate aquatic habitats. We performed the first test of the universality of the type of life cycle as a driver of parasite dispersal, using a meta-analysis of 16 studies of population genetic structure in 16 trematode species. After accounting for the geographic scale of a study, the number of populations sampled, and the genetic marker used, we found the type of life cycle to be the best predictor of genetic structure (Fst): trematode species bound to complete their life cycle within water showed significantly more pronounced genetic structuring than those leaving water through a bird or mammal host. This finding highlights the dependence of parasites on host traits for their dispersal, suggesting that genetic differentiation of parasites reflects the mobility of their hosts. Gene flow maintains the genetic integrity of species over large spatial scales, and dispersal maintains gene flow among separate populations. However, body size is a strong correlate of dispersal ability, with small-bodied organisms being poor dispersers. For parasites, small size may be compensated by using their hosts for indirect dispersal. In trematodes, some species use only aquatic hosts to complete their life cycle, whereas others use birds or mammals as final hosts, allowing dispersal among separate aquatic habitats. We performed the first test of the universality of the type of life cycle as a driver of parasite dispersal, using a meta-analysis of 16 studies of population genetic structure in 16 trematode species. After accounting for the geographic scale of a study, the number of populations sampled, and the genetic marker used, we found the type of life cycle to be the best predictor of genetic structure (Fst): trematode species bound to complete their life cycle within water showed significantly more pronounced genetic structuring than those leaving water through a bird or mammal host. This finding highlights the dependence of parasites on host traits for their dispersal, suggesting that genetic differentiation of parasites reflects the mobility of their hosts.
dcterms:title
Host traits explain the genetic structure of parasites: a meta-analysis Host traits explain the genetic structure of parasites: a meta-analysis
skos:prefLabel
Host traits explain the genetic structure of parasites: a meta-analysis Host traits explain the genetic structure of parasites: a meta-analysis
skos:notation
RIV/60077344:_____/13:00420948!RIV14-AV0-60077344
n13:predkladatel
n14:ico%3A60077344
n4:aktivita
n16:I
n4:aktivity
I
n4:cisloPeriodika
10
n4:dodaniDat
n5:2014
n4:domaciTvurceVysledku
Blasco-Costa, Maria Isabel
n4:druhVysledku
n6:J
n4:duvernostUdaju
n15:S
n4:entitaPredkladatele
n17:predkladatel
n4:idSjednocenehoVysledku
78084
n4:idVysledku
RIV/60077344:_____/13:00420948
n4:jazykVysledku
n8:eng
n4:klicovaSlova
meta-analysis; host traits; parasite traits; F-statistics; population genetic structure; dispersal; autogenic life cycle; allogenic life cycle
n4:klicoveSlovo
n12:population%20genetic%20structure n12:host%20traits n12:autogenic%20life%20cycle n12:meta-analysis n12:allogenic%20life%20cycle n12:parasite%20traits n12:F-statistics n12:dispersal
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[649FFB280BFA]
n4:nazevZdroje
Parasitology
n4:obor
n11:EH
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
2
n4:rokUplatneniVysledku
n5:2013
n4:svazekPeriodika
140
n4:tvurceVysledku
Blasco-Costa, Maria Isabel Poulin, R.
n4:wos
000323382500015
s:issn
0031-1820
s:numberOfPages
7
n9:doi
10.1017/S0031182013000784