The effect of flesh age, trap colour, decomposition stage, temperature and relative humidity on the visitation pattern of blow and flesh flies
2004
Shah, Z.A. | Sakhawat, T.A. (Govt. Coll. Univ., Faisalabad (Pakistan). Dept. of Zoology)
The present study was conducted to know the effect of flesh age, trap colours, decomposition stage, temperature and relative humidity on the visitation pattern of the flies of the families Calliphoridae and Sarcophagidae in the study area during F Season, 2003. Five traps of different colours were used to collect the flies using rabbit flesh as bait. Blow fly data were mostly concentrated on central three days of data collection. L. ampullacea, L sinensis, L illustris and L. indica proved to be very important species numerically in comparison to the rest of the species. Some species like L. ampullacea were the regular visitors. Flesh flies proved to be the early visitors. The population of most of the calliphorid flies had their population peaks during the 2nd day of data collection while that of flesh flies was observed on the 1st day of data collection. Some fly species were occasional visitors of the traps. Green colour was successful in attracting more number of flies compared to the rest of the colours. Fresh stage of flesh decomposition was preferred by the flies in comparison to bloated stage in terms of number as well as variety. A decrease of a few degrees in the environmental temperature resulted in the reduction of a large number of visiting flies. The visitation pattern of flies did not follow a specific trend with respect to changes in the percent mean relative humidity.
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