Response of soil mite abundance and diversity to a monospecific timber Tectona grandis plantation inIvory Coast

N'dri, Kouadio Julien;Adnre, Henri Marc;Lagerlöf, Jan;Tondoh, Jérôme Ebagnérin;Hance, Thierry
(2013) Current Zoology — Vol. 59, n° 5, p. 633-643 (2013)

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Authors
  • N'dri, Kouadio JulienUCLouvain
    Author
  • Adnre, Henri MarcMusée royal de l'Afrique centrale, Tervuren, Belgiqum
    Author
  • Lagerlöf, JanSwedish University of Agricultural Sciences
    Author
  • Tondoh, Jérôme EbagnérinInstitut d'economie rurale CRRA de Sotuba, Bamako, Mali
    Author
  • Author
Abstract
his study aims to assess the impact of monospecific Tectona grandis forest plantation on the soil mite abundance and diversity. To achieve these objectives, two sites situated in Ivory Coast were investigated. The first, a primary forest was characterized by a very weak human activities whereas the second, a teak plantation was characterized by a high disturbance performed during the planting. After extracting, sorted and description, 116 mite species were described in the two sites. Mite densities were lower in teak plantation and also higher in the litter and decreased to the depth in both sites. Species richness re- corded in teak plantation (52 species) was significantly lower compared to primary forest (98 species). The same trend was ob- served for Oribatida but not for Gamasida. The lower Oribatida (5 vs. 17) and higher Oribatida (24 vs. 41) were recorded respec- tively in teak plantation and primary forest. Mite Shannon index and evenness were significantly different between sites. High Jaccard index values and the appearance of exclusive species in both habitats showed that the sites are very distinct. Total number of species recorded corresponded to 58%–63% of the total number of species estimated by ACE and Chao 1&2 estimators, indi- cating that the sampling effort was not sufficient. Mite abundance and diversity varied depending on the characteristics of habi- tats. Chemical element (Corg, Ctot, Ntot, and SOM) values were lower in teak plantation (disturbed habitat) and significantly dif- ferent to primary forest in the topsoil. Apart from litter height, soil depth, pH and C/N ratio, others variables were strongly corre- lated to mite abundance and diversity
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Citations

N’dri, K. J., Adnre, H. M., Lagerlöf, J., Tondoh, J. E., & Hance, T. (2013). Response of soil mite abundance and diversity to a monospecific timber Tectona grandis plantation inIvory Coast. Current Zoology, 59(5), 633-643. https://hdl.handle.net/2078.5/203370 (Original work published 2013)