Title: | Modeling the Influence of Abiotic and Biotic Factors on Spatial and Temporal Fluctuations of Prostephanus truncatus (Coleoptera: Bostrichidae) Populations in Mozambique |
Author(s): | Muatinte BL; van den Berg J; |
Address: | "Department of Biological Sciences, Faculty of Sciences, Eduardo Mondlane University, P. O. Box 257, Maputo, Mozambique. Integrated Pest Management Program, Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa" |
ISSN/ISBN: | 1938-2936 (Electronic) 0046-225X (Linking) |
Abstract: | "The larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae), is a serious pest of stored maize in Mozambique and in other African countries. This study investigated the influence of abiotic and biotic factors on populations of P. truncatus at four sites over a two-year period (2013-2014) in Mozambique. Fourteen 250 x 250 m quadrants were selected at each site. Plant species diversity, temperature, precipitation, and relative humidity data were recorded. Pheromone-baited Uni-traps were used to monitor P. truncatus inside each quadrant. In addition, plant species were identified using visual observation and measurement of morphological features of leaves and fruits, and quantified, after which the percentage of host plant species of P. truncatus was determined out of all species in each quadrant. Multiple regression analysis and generalized linear models showed that host plant species dominance, maximum and minimum temperature, relative humidity, and rainfall influenced the variations in P. truncatus abundance. The development of these models of P. truncatus flight activity provides a baseline for further studies predicting dispersal and potential areas of invasion by this pest" |
Keywords: | Animals *Coleoptera Edible Grain Mozambique Temperature Zea mays altitude climate host plant species larger grain borer; |
Notes: | "MedlineMuatinte, Bernardo L Van den Berg, Johnnie eng England 2021/12/02 Environ Entomol. 2022 Feb 16; 51(1):118-131. doi: 10.1093/ee/nvab129" |