Spatial distribution of Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae) in the soil of a poultry house along a breeding cycle

摘要: Abstract Alphitobius diaperinus (Panzer) is an insect pest of tropical origin introduced in temperate areas. Its spatial distribution the soil poultry houses was studied during a winter breeding cycle. Soil sampling done after chickens’ removal three plots (walls, feeders and central area). Three physical parameters were measured: moisture, density surface compactness. Furthermore, litter temperatures recorded period following cleaning period. Spatial structure population revealed high heterogeneity: late instar larvae, nymphae adults located (down to 10 cm depth) under where density, compactness moisture content lower. Management practices greatly influence this structure. constitutes favourable site for pupation refuge (overwintering site) larvae stressful periods (decrease temperature period). A. reacts more than one stimulus locate suitable sites (structural edaphic parameters, hygrotaxis, thermotaxis). The survival area depends on opportunistic use warm such as layer houses.