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Dispersal, host gen...
Dispersal, host genotype and environment shape the spatial dynamics of a parasite in the wild
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- Ekholm, Adam (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology
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- Roslin, Tomas (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,University of Helsinki
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Pulkkinen, Pertti (författare)
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- Tack, Ayco J. M. (författare)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik
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(creator_code:org_t)
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- 2017-08-22
- 2017
- Engelska.
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Ingår i: Ecology. - : Wiley. - 0012-9658 .- 1939-9170. ; 98:10, s. 2574-2584
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https://esajournals....
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Dispersal, environment and genetic variation may all play a role in shaping host-parasite dynamics. Yet, in natural systems, their relative importance remains unresolved. Here, we do so for the epidemiology of a specialist parasite (Erysiphe alphitoides) on the pedunculate oak (Quercus robur). For this purpose, we combine evidence from a multi-year field survey and two dispersal experiments, all conducted at the landscape scale. Patterns detected in the field survey suggest that the parasite is structured as a metapopulation, with trees in denser oak stands characterized by higher parasite occupancy, higher colonization rates and lower extinction rates. The dispersal experiments revealed a major impact of the environment and of host genotype on the presence and abundance of the parasite, with a weaker but detectable imprint of dispersal limitation. Overall, our findings emphasize that dispersal, host genotype and the environment jointly shape the spatial dynamics of a parasite in the wild.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- colonization
- disease dynamics
- dispersal
- epidemiology
- Erysiphe alphitoides
- host-parasite interaction
- landscape scale
- metapopulation
- pedunculate oak
- powdery mildew
- Quercus robur
- spatial dynamics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Ecology
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