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Can Occurrence and Distribution of Ground Beetles (Carabidae) Be Influenced by the Coffee Farming System in the Mount Elgon Region of Uganda?
Neotropical Entomology ( IF 1.8 ) Pub Date : 2021-04-23 , DOI: 10.1007/s13744-021-00872-4
Anthony Raphael Ijala 1 , Samuel Kyamanywa 1 , Scola Cherukut 1 , Christopher Sebatta 1 , Thomas Hilger 2 , Jeninah Karungi 1
Affiliation  

The Mount Elgon region of Uganda has coffee farmlands distributed along the slopes of the mountain, in a mosaic of differing crop combinations, and semi-natural vegetation. Thus, there are parcels of varying microclimate that create disparities in occurrence of key insect functional groups. The study quantified the occurrence of Carabidae in 72 coffee farmlands categorized by altitude: low (1400–1499 m.a.s.l), mid (1500–1679 m.a.s.l), and high (1680–2100 m.a.s.l); and farming system: coffee monocrop, coffee+annual crops, coffee+banana, and coffee+banana+shade trees. The results revealed highly significant effects of altitude, farming systems, and the interaction of the two on occurrence of three Carabidae genera (Anisodactylus, Chlaenius, and Harpalus.). The abundance of Harpalus spp. was higher at lower altitudes in coffee monocropped farming systems; Anisodactylus spp. were more abundant at higher altitudes in coffee+annual crop systems; and Chlaenius spp. were highest in the coffee+banana+shade tree system at mid altitudes. The belowground microclimate parameters of soil moisture, pH, EC; and the aboveground diversity of semi-natural vegetation explained some of the differences in occurrence of the different Carabidae genera. This distinctiveness in preference of different genera in the same family hinders collective recommendations but looks to a more pragmatic strategy in nurturing diversity on a holistic scale.



中文翻译:

乌干达埃尔贡山地区的咖啡种植系统会影响地面甲虫(Carabidae)的发生和分布吗?

乌干达埃尔贡山地区的咖啡农田分布在山坡上,以不同作物组合和半自然植被的镶嵌方式分布。因此,有一些不同的小气候在关键昆虫功能群的出现方面造成差异。该研究量化了按海拔高度分类的 72 个咖啡农田中 Carabidae 的发生情况:低(1400-1499 masl)、中(1500-1679 masl)和高(1680-2100 masl);和耕作系统:咖啡单作、咖啡+一年生作物、咖啡+香蕉、咖啡+香蕉+遮荫树。结果表明,海拔高度、耕作制度以及两者的相互作用对三个 Carabidae 属(AnisodactylusChlaeniusHarpalus )的发生具有非常显着的影响。.) Harpalus spp的丰富性。在咖啡单一作物耕作系统的低海拔地区更高;Anisodactylus spp 在咖啡+一年生作物系统中,在高海拔地区更丰富;和Chlaenius spp。在中等海拔的咖啡+香蕉+遮荫树系统中最高。土壤水分、pH、EC的地下小气候参数;半天然植被的地上多样性解释了不同 Carabidae 属发生的一些差异。这种对同一科中不同属的偏好的独特性阻碍了集体推荐,但在整体范围内培养多样性方面寻求更务实的策略。

更新日期:2021-04-23
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