Angiostrongylus vasorum is a helminth parasite of domestic dogs that is increasing in range and prevalence. Its lifecycle requires terrestrial gastropod mollusc (“gastropod”) intermediate hosts, but research is lacking regarding contact risk in situ. We studied co-occurrence between dogs and gastropods in dog-walking spaces in an A. vasorum hotspot in southern England, United Kingdom, with the aim of quantifying environmental and spatio-temporal overlap. We surveyed 390 quadrats and 180 point-counts along 3 km transects at seven sites, yielding 1672 gastropod and 763 dog observations. Common gastropods comprised Arion, Cornu, Monacha, Deroceras, Tandonia, Cochlicella, and Trochulus species. Habitat was the most important factor structuring both gastropod and dog presence and abundance. Likelihood ratio comparisons from conditional probability trees revealed that dogs were 15× more likely to be present on hardstanding surfaces than other habitats but were also present on natural and amenity grassland. Presence of gastropod species associated with high A. vasorum prevalence was 65.12× more likely in woodland/scrub and 62.17× more likely in amenity grassland than other habitats. For gastropods overall, high abundance was 5.82× more likely in woodland/scrub and natural grassland. The findings suggest co-occurrence is highest in amenity and natural grassland, but infection risk is greatest in amenity grassland and woodland/scrub.
|Number of pages||16|
|Publication status||Published - 2 Sep 2021|
Bibliographical note© 2021 by the authors.
Licensee MDPI, Basel, Switzerland.
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Funding: This research was funded by Elanco Animal Health, and the University of Brighton. The APC was funded by Elanco Animal Health.
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
- Angiostronglyus vasorum
- Canis lupus familiaris
- Domestic dog
- Gastropod mollusc
- Intermediate host
- Spatiotemporal overlap
- Urban ecology
- Spatiotemporal Overlap
- Canis Lupus Familiaris
- Gastropod Mollusc
- Angiostronglyus Vasorum
- Domestic Dog