Rodents of Senegal and their role as intermediate hosts of Hydatigera spp. (Cestoda: Taeniidae)

Stefano Catalano (), Khalilou Bâ, Nicolas Diouf, Elsa Léger, Guilherme Verocai and Joanne Webster
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Stefano Catalano: Department of Pathobiology and Population Sciences - Royal Veterinary College, CEEED Centre for Emerging, Endemic and Exotic Diseases - Royal Veterinary College
Khalilou Bâ: UMR CBGP - Centre de Biologie pour la Gestion des Populations - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - INRA - Institut National de la Recherche Agronomique - Montpellier SupAgro - Centre international d'études supérieures en sciences agronomiques - UM - Université de Montpellier - IRD [Occitanie] - Institut de Recherche pour le Développement - Montpellier SupAgro - Institut national d’études supérieures agronomiques de Montpellier
Nicolas Diouf: UFR S2ATA - Université Gaston Berger - UFR Sciences Agronomiques, de l'Aquaculture et des Technologies Alimentaires [Sénégal] - UGB - Université Gaston Berger de Saint-Louis Sénégal, Institut Supérieur de Formation Agricole et Rurale (ISFAR ex ENCR) de Bambey/Sénégal
Elsa Léger: Department of Pathobiology and Population Sciences - Royal Veterinary College, CEEED Centre for Emerging, Endemic and Exotic Diseases - Royal Veterinary College
Guilherme Verocai: Odum School of Ecology - Department of Infectious Diseases [Athens, GA, USA] - University of Georgia [USA] - College of Veterinary Medicine [Athens, GA, USA]
Joanne Webster: Department of Pathobiology and Population Sciences - Royal Veterinary College, CEEED Centre for Emerging, Endemic and Exotic Diseases - Royal Veterinary College

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Abstract: Hydatigera (Cestoda: Taeniidae) is a recently resurrected genus including species seldom investigated in sub-Saharan Africa. We surveyed wild small mammal populations in the areas of Richard Toll and Lake Guiers, Senegal, with the objective to evaluate their potential role as intermediate hosts of larval taeniid stages (i.e. metacestodes). Based on genetic sequences of a segment of the mitochondrial DNA gene cytochrome c oxidase subunit 1 (COI), we identified Hydatigera parva metacestodes in 19 out of 172 (11.0%) Hubert's multimammate mice ( Mastomys huberti ) and one out of six (16.7%) gerbils ( Taterillus sp.) and Hydatigera taeniaeformis sensu stricto metacestodes in one out of 215 (0.5%) Nile rats ( Arvicanthis niloticus ). This study reports epidemiological and molecular information on H. parva and H. taeniaeformis in West African rodents, further supporting the phylogeographic hypothesis on the African origin of H. parva . Our findings may indicate significant trophic interactions contributing to the local transmission of Hydatigera spp. and other parasites with similar life-cycle mechanisms. We therefore propose that further field investigations of rodent population dynamics and rodent-borne infectious organisms are necessary to improve our understanding of host–parasite associations driving the transmission risks of rodent parasites in West Africa.

Keywords: Arvicanthis niloticus; Hydatigera parva; Hydatigera taeniaeformis; Mastomys huberti; parasites; Taeniidae; Taterillus; West Africa; wildlife (search for similar items in EconPapers)
Date: 2019-03
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Published in Parasitology, 2019, 146 (3), pp.299-304. ⟨10.1017/S0031182018001427⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-04935248

DOI: 10.1017/S0031182018001427

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