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Did biogeographical processes shape the monogenean community of butterflyfishes in the tropical Indo-west Pacific region?
Reverter, M.; Cribb, T.H.; Cutmore, S.C.; Bray, R.A.; Parravicini, V.; Sasal, P. (2017). Did biogeographical processes shape the monogenean community of butterflyfishes in the tropical Indo-west Pacific region? Int. J. Parasitol. 47(8): 447-455. https://dx.doi.org/10.1016/j.ijpara.2017.01.006
In: International journal for parasitology. Pergamon: Oxford. ISSN 0020-7519; e-ISSN 1879-0135, meer
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| Trefwoorden |
Dactylogyrida [WoRMS]
Marien/Kust |
| Author keywords |
Butterflyfish; Community nestedness; Community turnover; Dactylogyrids; Ectoparasites; Host specificity; Indo-Pacific; Parasite biogeography |
| Auteurs | | Top |
- Reverter, M.
- Cribb, T.H., meer
- Cutmore, S.C.
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- Bray, R.A., meer
- Parravicini, V.
- Sasal, P.
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| Abstract |
Geographical distribution of parasite species can provide insights into the evolution and diversity of parasitic communities. Biogeography of marine parasites is poorly known, especially because it requires an understanding of host-parasite interactions, information that is rare, especially over large spatial scales. Here, we have studied the biogeographical patterns of dactylogyrid parasites of chaetodontids, one of the most well-studied fish families, in the tropical Indo-west Pacific region. Dactylogyrid parasites were collected from gills of 34 butterflyfish species (n = 560) at nine localities within an approximate area of 62 million km2. Thirteen dactylogyrid species were identified, with richness ranging from 6 to 12 species at individual localities. Most dactylogyrid communities were dominated by Haliotrema angelopterum or Haliotrema aurigae, for which relative abundance was negatively correlated (ρ = −0.59). Parasite richness and diversity were highest in French Polynesia and the Great Barrier Reef (Australia) and lowest in Palau. Three biogeographic regions were identified based on dactylogyrid dissimilarities: French Polynesia, characterised by the dominance of H. angelopterum, the western Pacific region dominated by H. aurigae, and Ningaloo Reef (Australia), dominated by Euryhaliotrema berenguelae. Structure of host assemblages was the main factor explaining the dissimilarity (turnover and nestedness components of the Bray-Curtis dissimilarity and overall Bray-Curtis dissimilarity) of parasite communities between localities, while environment was only significant in the turnover of parasite communities and overall adissimilarity. Spatial structure of localities explained only 10% of the turnover of parasite communities. The interaction of the three factors (host assemblages, environment and spatial structure), however, explained the highest amounts of variance of the dactylogyrid communities, indicating a strong colinearity between the factors. Our findings show that spatial arrangement of chaetodontid dactylogyrids in the tropical Indo-west Pacific is primarily characterised by the turnover of the main Haliotrema spp., which is mainly explained by the structure of host assemblages. |
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