Taxonomic and community composition of epigeal arthropods in monoculture and mixed tree species plantations in a deciduous forest of Ghana  

作　　者：Frederick Gyasi Damptey Emmanuel Opuni-Frimpong Collins Ayine Nsor James Addai Daniel Kwame Debrah Benjamin Schnerch Felicity Bentsi-Enchill Henn Korjus 

机构地区：[1]Department of Ecology,Brandenburg University of Technology Cottbus-Senftenberg,03046 Cottbus,Germany [2]CSIR-Forestry Research Institute of Ghana,Kumasi,Ghana [3]School of Natural Resources,University of Energy and Natural Resources(UENR),Sunyani,Ghana [4]Department of Forest Resources Technology,Kwame Nkrumah University of Science and Technology,Kumasi,Ghana [5]Forest Service Division of the Forestry Commission,Accra [6]Department of Biology Education,Faculty of Science Education,University of Education,Winneba,Ghana [7]Institute of Forestry and Rural Engineering,Estonian University of Life Sciences,Tartu,Estonia

出　　处：《Journal of Forestry Research》2023年第3期641-653,共13页林业研究（英文版）

摘　　要：Tropical forests provide several ecosystem services and functions and support approximately two-thirds of the world’s biodiversity but are seriously threatened by deforestation.Approaches to counteract this menace have revolved around aff orestation with several or a single tree species.We thus investigated how plantation forests with either a single or several tree species infl uenced arthropod taxonomic and community composition using pitfall traps to sample selected groups of epigeal arthropods(Araneae,Coleoptera,Orthoptera and Hymenoptera)and with environmental variables assessed simultaneously.Our results revealed 54 taxonomic groups with signifi cantly higher taxonomic richness,activity density,and diversity in the mixed stands than in the monoculture stands.The significant differences in community composition were mainly driven by families including Lycosidae,Formicidae,Staphylinidae,Scotylidae,Hydrophilidae,Gryllidae and Scarabaeidae and were explained by distinct habitat characteristics(canopy openness,litter depth,deadwood volume,and tree height).While the diverse tree communities and heterogeneous vegetation structure off ered food and habitat resources for diverse arthropod groups,the allelopathic nature coupled with homogenous stand characteristics of the Tectona grandis stands in the monoculture suppressed the growth of understorey vegetation that could otherwise serve as food and habitat resources for arthropods,which might have led to limited activities and diversity of arthropods in the monoculture plantation stands.The fi ndings thus highlight the need to promote mixed tree plantations in degraded tropical areas,especially when restoring biodiversity is the prime management focus.

关 键 词：Arthropod community Forest plantations Structural complexity Tree diversity Tropical deforestation 

分 类 号：S718.5[农业科学—林学]