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Related Experiment Videos

Mortality of captive British wartbiter crickets: implications for reintroduction programs

A A Cunningham1, J M Frank, P Croft

  • 1Veterinary Science Group, Institute of Zoology, London, United Kingdom.

Journal of Wildlife Diseases
|July 1, 1997
PubMed
Summary

A fungal infection caused high mortality in captive wartbiter crickets (Decticus verrucivorus), a threatened species. Reintroductions were halted, and release sites were restricted to areas without existing populations.

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Ecology and evolution·2024

Area of Science:

  • Mycology
  • Zoology
  • Conservation Biology

Background:

  • The wartbiter cricket (Decticus verrucivorus) is a UK-threatened species.
  • Captive breeding programs are crucial for the conservation of endangered insects.
  • High mortality rates in captive populations can jeopardize conservation efforts.

Purpose of the Study:

  • To identify the cause of high mortality in captive wartbiter cricket nymphs.
  • To inform conservation strategies for Decticus verrucivorus.

Main Methods:

  • Fungal infection identification in deceased nymphs.
  • Mortality rate assessment in captive populations.

Main Results:

  • A fungal infection was determined to be the cause of high mortality.

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  • The affected population was part of a captive breeding and reintroduction program at London Zoo.

    • Conclusions:

    • Fungal infections pose a significant threat to captive breeding programs for endangered species.
    • Conservation reintroductions were postponed due to the fungal outbreak.
    • Management strategies for captive insect populations must include disease prevention and control.