Artificial warthog burrows used to sample adult and immature tsetse (Glossina spp) in the Zambezi Valley of Zimbabwe

PLoS Neglected Tropical Diseases
John W Hargrove, M Odwell Muzari

Abstract

The biology of adult tsetse (Glossina spp), vectors of trypanosomiasis in Africa, has been extensively studied - but little is known about larviposition in the field. In September-November 1998, in the hot-dry season in Zimbabwe's Zambezi Valley, we used artificial warthog burrows to capture adult females as they deposited larvae. Females were subjected to ovarian dissection and were defined as perinatal flies, assumed to have entered burrows to larviposit, if oocyte sizes indicated >95% pregnancy completion. Perinatal flies were defined as full-term pregnant if there was a late third instar larva in utero, or postpartum if the uterus was empty. All other females were defined as pre-full-term pregnant (pre-FT). Of 845 G. m. morsitans captured, 91% (765) were female and 295/724 (41%) of females dissected were perinatal flies. By contrast, of 2805 G. pallidipes captured only 71% (2003) were female and only 33% (596/1825) of females were perinatal. Among all perinatal females 67% (596/891) were G. pallidipes. Conversely, in burrows not fitted with traps - such that flies were free to come and go - 1834 (59%) of pupae deposited were G. m. morsitans and only 1297 (41%) were G. pallidipes. Thus, while more full-term pregnant G. palli...Continue Reading

References

May 4, 2017·PLoS Neglected Tropical Diseases·Gerald ChikoworeLaure Guerrini
Dec 13, 2017·Infectious Diseases of Poverty·Bernadette Ramirez, TDR-IDRC Research Initiative on Vector Borne Diseases and Climate Change

Citations

Jan 1, 1978·Annual Review of Entomology·S S Tobe
Dec 1, 1994·The Onderstepoort Journal of Veterinary Research·P A Langley
Sep 14, 1999·Medical and Veterinary Entomology·John W Hargrove

Related Concepts

Phacochoeris aethiopicus
Phacochoerus africanus
Glossina
Trypanosomiasis
Entire Uterus
Both Ovaries
Neoplasm of Uncertain or Unknown Behavior of Uterus
Uterus
Ovulation
Ovary

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