Publications by authors named "V A Wilkinson"

Sarcoptes scabiei mites and skin lesions consistent with severe sarcoptic mange were identified in a Tasmanian devil (Sarcophilus harrisii) and Bennett's wallaby (Notamacropus rufogriseus) from Tasmania, Australia. The devil and wallaby both had severe hyperkeratotic skin lesions. All stages of mite development were identified in the devil, suggesting parasite reproduction on the host.

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There is a critical need for advancements in disease management strategies for wildlife, but free-living animals pose numerous challenges that can hinder progress. Most disease management attempts involve fixed interventions accompanied by post hoc outcome assessments focused on success or failure. Though these approaches have led to valuable management advances, there are limitations to both the rate of advancement and amount of information that can be gained.

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Sarcoptic mange, caused by epidermal infection with , negatively impacts the health, welfare, and local abundance of bare-nosed wombats () in Australia. Improved understanding of the host immune response to disease and its contribution to pathophysiology could be used to inform management actions for this species and . To evaluate the immune response of bare-nosed wombats to sarcoptic mange, we validated three assays (haptoglobin, agarose gel electrophoresis, and micro-erythrocyte sedimentation rate) measuring non-specific markers of inflammation using serum samples from free-living wombats from Tasmania ( = 33).

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Article Synopsis
  • A study investigated the skin bacteria of two bare-nosed wombats after they received treatment for sarcoptic mange, a skin disease caused by Sarcoptes scabiei.
  • The treatment led to noticeable changes in the skin microbiota of the wombats, highlighting the significant impact of the disease on bacterial diversity.
  • The analysis revealed that the two wombats experienced different disease progressions and variations in their bacterial communities following treatment.
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Invasive environmentally transmitted parasites have the potential to cause declines in host populations independent of host density, but this is rarely characterized in naturally occurring populations. We investigated (1) epidemiological features of a declining bare-nosed wombat () population in central Tasmania owing to a sarcoptic mange (agent ) outbreak, and (2) reviewed all longitudinal wombat-mange studies to improve our understanding of when host population declines may occur. Over a 7-year period, the wombat population declined 80% (95% CI 77-86%) and experienced a 55% range contraction.

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