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Evolutionary associ...
Evolutionary associations between host traits and parasite load : insights from Lake Tanganyika cichlids
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- Hayward, A. (författare)
- Univ Exeter, Ctr Ecol & Conservat, Penryn, England.,Centre for Ecology and Conservation, University of Exeter, Penryn, UK
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- Tsuboi, Masahito (författare)
- Uppsala University,Uppsala universitet,Zooekologi,Department of Animal Ecology, Uppsala University, Uppsala, Sweden
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- Owusu, Christian Kwasi (författare)
- Uppsala University,Uppsala universitet,Zooekologi,Department of Animal Ecology, Uppsala University, Uppsala, Sweden
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- Kotrschal, Alexander (författare)
- Stockholm University,Stockholms universitet,Zoologiska institutionen,Stockholm Univ, Dept Zool, Stockholm, Sweden.,Department of Zoology, Stockholm University, Stockholm, Sweden
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- Buechel, Severine D. (författare)
- Stockholm University,Stockholms universitet,Zoologiska institutionen,Stockholm Univ, Dept Zool, Stockholm, Sweden.,Department of Zoology, Stockholm University, Stockholm, Sweden
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- Zidar, Josefina (författare)
- Linköping University,Linköpings universitet,Biologi,Tekniska fakulteten
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- Cornwallis, C. K. (författare)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Molekylär ekologi och evolution,Forskargrupper vid Lunds universitet,Department of Biology,Faculty of Science,Molecular Ecology and Evolution Lab,Lund University Research Groups
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- Løvlie, Hanne (författare)
- Linköping University,Linköpings universitet,Biologi,Tekniska fakulteten
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- Kolm, Niclas (författare)
- Stockholm University,Stockholms universitet,Zoologiska institutionen,Stockholm Univ, Dept Zool, Stockholm, Sweden.,Department of Zoology, Stockholm University, Stockholm, Sweden
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Univ Exeter, Ctr Ecol & Conservat, Penryn, England Centre for Ecology and Conservation, University of Exeter, Penryn, UK (creator_code:org_t)
- 2017-03-06
- 2017
- Engelska.
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Ingår i: Journal of Evolutionary Biology. - : WILEY. - 1010-061X .- 1420-9101. ; 30:6, s. 1056-1067
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Abstract
Ämnesord
Stäng
- Parasite diversity and abundance (parasite load) vary greatly among host species. However, the influence of host traits on variation in parasitism remains poorly understood. Comparative studies of parasite load have largely examined measures of parasite species richness and are predominantly based on records obtained from published data. Consequently, little is known about the relationships between host traits and other aspects of parasite load, such as parasite abundance, prevalence and aggregation. Meanwhile, understanding of parasite species richness may be clouded by limitations associated with data collation from multiple independent sources. We conducted a field study of Lake Tanganyika cichlid fishes and their helminth parasites. Using a Bayesian phylogenetic comparative framework, we tested evolutionary associations between five key host traits (body size, gut length, diet breadth, habitat complexity and number of sympatric hosts) predicted to influence parasitism, together with multiple measures of parasite load. We find that the number of host species that a particular host may encounter due to its habitat preferences emerges as a factor of general importance for parasite diversity, abundance and prevalence, but not parasite aggregation. In contrast, body size and gut size are positively related to aspects of parasite load within, but not between species. The influence of host phylogeny varies considerably among measures of parasite load, with the greatest influence exerted on parasite diversity. These results reveal that both host morphology and biotic interactions are key determinants of host-parasite associations and that consideration of multiple aspects of parasite load is required to fully understand patterns in parasitism.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- endoparasite
- evolution
- fish
- helminth
- parasitic worm
- Endoparasite
- Evolution
- Fish
- Helminth
- Parasitic worm
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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