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Heterogeneity in patterns of helminth infections across populations of mountain gorillas (Gorilla beringei beringei)

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PETRŽELKOVÁ Klara J. UWAMAHORO Carine PAFČO Barbora ČERVENÁ Barbora SAMAŠ Peter MUDAKIKWA Antoine MUVUNYI Richard UWINGELI Prosper GILARDI Kirsten NZIZA Julius NOHERI Jean Bosco ECKARDT Winnie NDAGIJIMANA Felix SSEBIDE Benard OKWIROKELLO Ricky NIZEYIMANA Fred SYALUHA Eddy Kambale NZAYISENGA Gaspard GIRÓN Luis Flores BAHIZI Méthode NTWARI Adrien Emile LUKUSA Jean-Paul TUMUSHIME Jean Claude MANGURA Damien MAPILANGA Jeff KALONJI Arthur ARUHO Robert STRYKOVÁ Anna TEHLAROVÁ Zuzana CAMEIRA Rita LOWENSTINE Linda ŠLAPETA Jan ROMPORTL Dušan FERRARI Nicola CRANFIELD Michael MODRÝ David

Rok publikování 2021
Druh Článek v odborném periodiku
Časopis / Zdroj Nature Scientific Reports
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://doi.org/10.1038/s41598-021-89283-4
Doi http://dx.doi.org/10.1038/s41598-021-89283-4
Klíčová slova ANOPLOCEPHALA-PERFOLIATA; GASTROINTESTINAL PARASITES; TRICHOSTRONGYLID LARVAE; COPROLOGICAL METHODS; GROUP-SIZE; DYNAMICS; PRIMATE; ECOLOGY; FOREST; AGE
Popis Conservation efforts have led to the recovery of the endangered mountain gorilla populations. Due to their limited potential for spatial expansion, population densities increased, which may alter the epidemiology of infectious diseases. Recently, clinical gastrointestinal illnesses linked to helminth infections have been recorded in both gorilla populations. To understand drivers and patterns of helminth infections we quantified strongylid and tapeworm infections across both Virunga Massif and Bwindi populations using fecal egg counts. We assessed the impact of age, sex, group size, season and spatial differences used as a proxy, which reflects observed variation in the occurrence of gastrointestinal problems, vegetation types, gorilla subpopulation growth and associated social structure on helminth infections. We revealed striking geographic differences in strongylid infections with higher egg counts mostly in areas with high occurrences of gastrointestinal disease. Increased helminth egg counts were also associated with decreasing group size in some areas. Observed spatial differences may reflect mutual effects of variations in subpopulation growth rates, gorilla social structure, and vegetation associated with altitude across mountain gorilla habitat. Helminth infection intensities in Virunga gorillas were lowest in the youngest and the oldest animals. Elucidating parasite infection patterns of endangered species with low genetic diversity is crucial for their conservation management.

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