Abstract
The interaction between the African weaver ant (AWA), Oecophylla longinoda Latreille, and dominant ant species, the big-headed ant (BHA), Pheidole megacephala Fabricius, and the common pugnacious ant (CPA), Anoplolepis custodiens Smith, was examined in the cashew fields at Bagamoyo and Mkuranga districts, Coast region of Tanzania. Sugar-based bait was used monthly to examine the interaction between AWA, BHA, and CPA, as well as other species of ants. There were significant differences in the abundance of AWA, BHA, CPA, and other ant species foraging at the baits (F (3,36) = 5.43; P = 0.002) and (F (3,36) = 11.69; P < 0.0001) at Bagamoyo and Mkuranga, respectively, in 2010. The mean abundances of AWA, BHA, CPA, and ‘others’ were 66.6, 24.6, 35.0, and 59.5 %, respectively, at Bagamoyo in 2010. A similar trend was observed in 2011. The abundance of AWA was significantly negatively correlated with BHA (r (39) = −0.30; P < 0.0001) and CPA (r (39) = −0.18; P = 0.01) at Bagamoyo in 2010. A similar trend was also observed at Mkuranga. The abundance of AWA was therefore negatively affected by the presence of the two dominant ants, BHA and CPA, which may hinder the effectiveness of AWA to control sap-sucking pests in cashew. Therefore, suppression of BHA and CPA should be emphasized for effective control of the sap-sucking pests using AWA.
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Acknowledgments
The author acknowledges the Federal Ministry for Economic Cooperation and Development and the German Academic Exchange Service (DAAD), Germany, for providing financial support. I thank International Centre of Insect Physiology and Ecology (icipe) in collaboration with African Insect Science for Food and Health, the African Regional Postgraduate Programme in Insect Science of icipe and the Mikocheni Agricultural Research Institute for overall assistance during this study. I am grateful to Messieurs J. Ambrosy, M. George, V. Nyange, B. Mruma, and G. Mwingira for technical assistance. I am also grateful to Mr. and Mrs. Ponzi and M. Chimela for providing access to field sites and farm facilities.
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Olotu, M.I. Interaction Between African Weaver Ant Oecophylla longinoda and Dominant Ant Species Pheidole megacephala and Anoplolepis custodiens in Cashew Fields in Tanzania. Agric Res 5, 246–251 (2016). https://doi.org/10.1007/s40003-016-0228-4
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DOI: https://doi.org/10.1007/s40003-016-0228-4