Title

The effects of the fungus Beauvaria sp. on the cave cricket, Hadenoecus subterraneus

List all Project Mentors & Advisor(s)

Claire Fuller

Presentation Format

Poster Presentation

Abstract/Description

The cave cricket, Hadenoecus subterraneus, is a keystone species in cave ecosystems within Mammoth Cave National Park (MCNP). Within MCNP, many cricket cadavers have been found

with a thick, white fungus growing on them; this fungus has previously been identified to be Beauveria bassiana. However, new molecular data suggests that this may actually be the species B. amorpha. Cricket cadavers with Beauveria sp. were collected from MCNP and cultured on potato dextrose agar. Cultures will be sent to the USDA for a genetic analysis and identification of the fungus. The purpose of this study is to examine if the relationship between the cave crickets and the fungus is of parasitic or saprophytic nature. Fifteen crickets will be exposed to a 1 x 106 conidia solution, while the other 15 will be exposed to a Tween-80 solution for the control group. Mortality rates will be observed daily and analyzed.

Location

Large Ballroom, Curris Center

Start Date

April 2016

End Date

April 2016

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The effects of the fungus Beauvaria sp. on the cave cricket, Hadenoecus subterraneus

Large Ballroom, Curris Center

The cave cricket, Hadenoecus subterraneus, is a keystone species in cave ecosystems within Mammoth Cave National Park (MCNP). Within MCNP, many cricket cadavers have been found

with a thick, white fungus growing on them; this fungus has previously been identified to be Beauveria bassiana. However, new molecular data suggests that this may actually be the species B. amorpha. Cricket cadavers with Beauveria sp. were collected from MCNP and cultured on potato dextrose agar. Cultures will be sent to the USDA for a genetic analysis and identification of the fungus. The purpose of this study is to examine if the relationship between the cave crickets and the fungus is of parasitic or saprophytic nature. Fifteen crickets will be exposed to a 1 x 106 conidia solution, while the other 15 will be exposed to a Tween-80 solution for the control group. Mortality rates will be observed daily and analyzed.