Termites play an important role in the process of decomposition of organic matter in tropical ecosystems and participate in the evolution of soil structure. This study was carried out in the north of Côte d’Ivoire to evaluate the influence of cashew tree orchards’ age on termite assemblages. The standardised method for rapid estimation (RAP) of biodiversity was used to collect termites in four (4) classes of cashew tree orchards (Class 1: ˂ 5 years, Class 2: 5–10 years, Class 3: 11–20 years, Class 4: 21 years and above) in comparison to savannah. The results showed that species richness, were low in young orchards of class 1 (9 species). This increased progressively with age to its maximum in older orchards of class 4 (30 species). These old orchards were even richer in termite species than the savannah (27 species). Shannon-Weiner diversity index varied in the same way as species richness. The abundance of termites, were low in young orchards (45 occurrences), higher in older orchards of class 4 (423 occurrences), with a predominance of fungus-growing termite species. This study showed the recovery of termite diversity in cashew tree orchards after the stoppage in agricultural activities. Suggesting that, this form of agroforestry would allow for the conservation of diversity of the soil fauna while ensuring food security in the area.

中文翻译：

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腰果 Anacardium occidentale L. 栽培对 Korhogo 大草原区（科特迪瓦北部）白蚁多样性的影响

白蚁在热带生态系统有机质分解过程中发挥重要作用，参与土壤结构演化。本研究在科特迪瓦北部进行，旨在评估腰果树园年龄对白蚁群落的影响。使用生物多样性快速估计 (RAP) 的标准化方法收集四 (4) 类腰果树园中的白蚁（第 1 类：˂ 5 年，第 2 类：5-10 年，第 3 类：11-20 年，第 4 类：21 岁及以上）与大草原相比。结果表明，1类（9种）幼果园的物种丰富度较低。这随着年龄的增长逐渐增加，在第 4 类（30 种）较老的果园中达到最大值。这些古老的果园的白蚁种类甚至比大草原（27 种）还要丰富。Shannon-Weiner 多样性指数的变化方式与物种丰富度相同。白蚁的丰度在年轻果园中较低（45 次），在第 4 类老果园中较高（423 次），主要是真菌生长的白蚁物种。这项研究表明，在农业活动停止后，腰果树园中白蚁多样性的恢复。建议这种形式的农林业可以保护土壤动物群的多样性，同时确保该地区的粮食安全。这项研究表明，在农业活动停止后，腰果树园中白蚁多样性的恢复。建议这种形式的农林业可以保护土壤动物群的多样性，同时确保该地区的粮食安全。这项研究表明，在农业活动停止后，腰果树园中白蚁多样性的恢复。建议这种形式的农林业可以保护土壤动物群的多样性，同时确保该地区的粮食安全。