Title

Big Dung Beetles Dig Deeper: Trait-Based Consequences For Faecal Parasite Transmission

Document Type

Article

Publication Date

2-1-2015

Published In

International Journal For Parasitology

Abstract

Observational evidence suggests that burial of faeces by dung beetles negatively influences the transmission of directly transmitted gastrointestinal helminths. However, the mechanistic basis for these interactions is poorly characterised, limiting our ability to understand relationships between beetle community composition and helminth transmission. We demonstrate that beetle body size and sex significantly impact tunnel depth, a key variable affecting parasite survival. Additionally, high parasite loads reduce the depth of beetle faeces burial, suggesting that the local prevalence of parasites infecting beetles may impact beetle ecosystem function. Our study represents a first step towards a mechanistic understanding of a potentially epidemiologically relevant ecosystem function.

Keywords

Scarabaeinae, Disease, Parasite ecology, Macroparasite, Ecosystem function, Ecosystem services, Helminth, Livestock

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