Volume 28, Issue 3, February 2020, Pages 630–639
Kouassi Jérôme N’Dri1, N’Dri Saint-Clair Amani2, Kouadio Eugène Konan3, Ahounou Ahué Florent Joseph KOFFI4, and OTCHOUMOU Atcho5
1 Laboratory of Animal Biology and Cytology, UFR Science of Nature, Nangui Abrogoua University of Abidjan, Côte d’Ivoire
2 Departement Animal Biology, UFR Biological Sciences, Péléféro Gon Coulibaly Universiy of Korogho, Côte d’Ivoire
3 Laboratory of Animal Biology and Cytology, UFR Science of Nature, Nangui Abrogoua University of Abidjan, Côte d’Ivoire
4 Laboratory of Animal Biology and Cytology, UFR Science of Nature, Nangui Abrogoua University of Abidjan, Côte d’Ivoire
5 Laboratoire de Biologie et Cytologie Animales, Université Nangui Abrogoua, BP 801 Abidjan 02, Côte d'Ivoire
Original language: English
Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The terrestrial Gastropod Molluscs of the National Center of Floristic (NCF) were studied in this work through their relative abundance, their frequency of occurrence as well as their density of population. To do this, quadras were delineated on the different parcels of the NCF and a stratified sampling was applied. Two sampling methods, namely the direct collection method and the litter sampling method, were used for the collection of specimens. The individuals collected were identified and counted. A total of 4,216 specimens of terrestrial Gastropod Molluscs were collected. Achatinidae and Subulinidae are numerically the most abundant with 54.06% and 42.08% respectively of the molluscs harvested. Only species of the family Achatinidae have a frequency of occurrence greater than 50% so can be considered constant. In terms of stand density, it is very high for micro-species and low for Achatinidae (large species). Achatinidae are mostly found in the arboretum while micro-species are mainly concentrated in fallow. In addition, NCF molluscs are characterized by either high abundance or regular distribution. In addition, of the three microhabitats used, the habitat who includes the soil surface, below the litter, on the litter and under the trunks of trees lying on the ground is the most inhabited by the molluscs of the NCF.
Author Keywords: Relative abundance, occurrence, density, mollusc, terrestrial gastropods.
Kouassi Jérôme N’Dri1, N’Dri Saint-Clair Amani2, Kouadio Eugène Konan3, Ahounou Ahué Florent Joseph KOFFI4, and OTCHOUMOU Atcho5
1 Laboratory of Animal Biology and Cytology, UFR Science of Nature, Nangui Abrogoua University of Abidjan, Côte d’Ivoire
2 Departement Animal Biology, UFR Biological Sciences, Péléféro Gon Coulibaly Universiy of Korogho, Côte d’Ivoire
3 Laboratory of Animal Biology and Cytology, UFR Science of Nature, Nangui Abrogoua University of Abidjan, Côte d’Ivoire
4 Laboratory of Animal Biology and Cytology, UFR Science of Nature, Nangui Abrogoua University of Abidjan, Côte d’Ivoire
5 Laboratoire de Biologie et Cytologie Animales, Université Nangui Abrogoua, BP 801 Abidjan 02, Côte d'Ivoire
Original language: English
Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The terrestrial Gastropod Molluscs of the National Center of Floristic (NCF) were studied in this work through their relative abundance, their frequency of occurrence as well as their density of population. To do this, quadras were delineated on the different parcels of the NCF and a stratified sampling was applied. Two sampling methods, namely the direct collection method and the litter sampling method, were used for the collection of specimens. The individuals collected were identified and counted. A total of 4,216 specimens of terrestrial Gastropod Molluscs were collected. Achatinidae and Subulinidae are numerically the most abundant with 54.06% and 42.08% respectively of the molluscs harvested. Only species of the family Achatinidae have a frequency of occurrence greater than 50% so can be considered constant. In terms of stand density, it is very high for micro-species and low for Achatinidae (large species). Achatinidae are mostly found in the arboretum while micro-species are mainly concentrated in fallow. In addition, NCF molluscs are characterized by either high abundance or regular distribution. In addition, of the three microhabitats used, the habitat who includes the soil surface, below the litter, on the litter and under the trunks of trees lying on the ground is the most inhabited by the molluscs of the NCF.
Author Keywords: Relative abundance, occurrence, density, mollusc, terrestrial gastropods.
How to Cite this Article
Kouassi Jérôme N’Dri, N’Dri Saint-Clair Amani, Kouadio Eugène Konan, Ahounou Ahué Florent Joseph KOFFI, and OTCHOUMOU Atcho, “Spatial distribution and occurrence of terrestrial Gastropod Molluscs in the National Center of Floristic (NCF) of Abidjan, Côte d'Ivoire,” International Journal of Innovation and Applied Studies, vol. 28, no. 3, pp. 630–639, February 2020.
