Effects of adding exotic dung beetles to native fauna on bush fly breeding in the field |
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Authors: | M Tyndale-Biscoe W G Vogt |
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Institution: | (1) CSIRO Division of Entomology, G.P.O. Box 1700, 2601 Canberra, A.C.T., Australia |
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Abstract: | Egg to pupal survival of bush fly,Musca vetustissima Walker, under field conditions was examined during 1987/88 in an area of south-eastern Australia that had not been colonised
by exotic dung beetles. In pads of cattle dung containing only the native fauna, fly survival ranged from 0.3% to 12.5%. The
addition of 2 species of exotic dung beetles,Euoniticellus fulvus (Goeze) andOnthophagus taurus (Schreber) to field pads, in numbers similar to those observed at the collection site, reduced fly survival to between 0.3%
and 4.4%. Fly survival in the presence of the native and exotic dung fauna was sufficiently low to keep fly breeding below
their mean replacement level of 3% for most of the season. Widespread dispersal and establishment of exotic dung beetles in
south-eastern Australia, alongside the native fauna, should lead to long-term reduction of the bush fly problem.
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Keywords: | Musca vetustissima native exotic Scarabaeinae dung control |
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