Population expansion and individual age affect endoparasite richness and diversity in a recolonising large carnivore population
| Autor: | Oliver Krone, Carsten Nowak, Emanuel Heitlinger, Claudia A. Szentiks, Gesa Kluth, Anne Jarausch, Ilja Heckmann, Ines Lesniak, Verena Harms, Ilka Reinhardt, Heribert Hofer |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Population Biodiversity Population genetics DNA Satellite DNA Mitochondrial Article Host-Parasite Interactions 03 medical and health sciences Trichinella britovi ddc:590 Helminths Animals Parasites Carnivore education Population Density education.field_of_study Multidisciplinary Wolves biology Geography Ecology Population size biology.organism_classification 030104 developmental biology Canis Parasite genetics Conservation biology High-throughput screening Species richness |
| Zdroj: | Scientific reports, 7:41730 Scientific Reports |
| Popis: | The recent recolonisation of the Central European lowland (CEL) by the grey wolf (Canis lupus) provides an excellent opportunity to study the effect of founder events on endoparasite diversity. Which role do prey and predator populations play in the re-establishment of endoparasite life cycles? Which intrinsic and extrinsic factors control individual endoparasite diversity in an expanding host population? In 53 individually known CEL wolves sampled in Germany, we revealed a community of four cestode, eight nematode, one trematode and 12 potential Sarcocystis species through molecular genetic techniques. Infections with zoonotic Echinococcus multilocularis, Trichinella britovi and T. spiralis occurred as single cases. Per capita endoparasite species richness and diversity significantly increased with population size and changed with age, whereas sex, microsatellite heterozygosity, and geographic origin had no effect. Tapeworm abundance (Taenia spp.) was significantly higher in immigrants than natives. Metacestode prevalence was slightly higher in ungulates from wolf territories than from control areas elsewhere. Even though alternative canid definitive hosts might also play a role within the investigated parasite life cycles, our findings indicate that (1) immigrated wolves increase parasite diversity in German packs, and (2) prevalence of wolf-associated parasites had declined during wolf absence and has now risen during recolonisation. |
| Databáze: | OpenAIRE |
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