Altitudinal zonation of the vegetation of mount Kupe, Cameroon | J. Bio. Env. Sci. 14(1), 82-96

By: Barthélemy Tchiengue

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A detailed account of the vegetation of Mount Kupe, clothed by a luxurious forest is unknown and this study aims to fill that gap. From altitude 700m above farmlands to the summit, 29 plots of 5000m² each were demarcated and the floristic inventory involved the recording of all tree and shrub individuals of at least 5cm dbh. Diversity indices and many structural parameters were calculated.

Important families and species were determined by calculating the family important and the species's important value indices. The Shannon diversity index dropped from 4.1 in the lower dried submontane zone to 2.2 in the transition to montane zone. The Pielou evenness was 0.8 in the transition between lowland and submontane zone and decreased to 0.6 in the transition to the montane zone. Some of the 11 important plant families are Euphorbiaceae, Guttiferae, Sterculiaceae and Meliaceae. Species A total of 198 species were recorded in the plots and five vegetation zones were discriminated. Amongst species with high IVI there are many Guttiferae (Allanblackia gabonensis Oliv., Garcinia lucida Vesque, G. smeathmannii (Planch. & Triana) N.Robson, Pentadesma grandifolia Bak. F.), and other like Santiria trimera (Oliv) Aubrév., Carapa oreophila Kenfack, Dacryodes klaineana (Pierre) H.J. Lam, and Cylicomorpha solmsii (Urb.)Urb. The distribution of stem individuals according to dbh indicates that large trees are not well represented. Since the forest on mount Kupe is stable, a situation favoring the presence of strict and narrow endemic species, the administration in charge of forestry must control encroachment in order to preserve this treasure. Full pdf articles available at-
J. Bio. Env. Sci. 14(1), 82-96, January 2019.

Journal of Biodiversity and Environmental Sciences-JBES is an open-access scholarly research journal, published by International Network for Natural Sciences-INNSPUB. JBES published original scientific articles in different field of Environmental Sciences and Biodiversity. JBES published 2 Volume and 12 issue per calender year.

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Assessment of the vegetation cover of northern high mountains in Jordan - JBES

• Dawud MH Al-Eisawi 1*, Sawsan AS Oran2

Dept. of Biological Sciences, Faculty of Science, The University of Jordan, Amman, 11942 – Jordan

The vegetation cover of the northern mountains of Jordan was investigated and surveyed. Line transects sampling method as well as walking through methods have been applied in this study. A total area of 15x80 km was studied and divided into grid system, and thus the selected grids have been used for the line transect sampling. The study showed that the natural forest of Aleppo pine, evergreen oak forest, deciduous oak forest, degraded forest and manmade Aleppo pine forest areas are suffering from man interference and continuous encroachment for the uses of agriculture, urbanization, grazing, fire and querying.

The available plant species under forest were collected and herbarium specimens are prepared and deposited. Analysis parameters such as density (D), relative density (RD), frequency (F), relative frequency (RF), abundance (A), relative abundance (RA) and the importance value (IV) are studied. The values of the parameters are recorded for all species, but since the number of collected species is more than 500, then these parameters are listed for the highest 20 species to show clear image about the most dominant and the most abundant and other parameters. From the quantitative ecological analysis using various parameters, the species recoded as having the highest values such as Quercus coccifera, Sarcopoterium spinosum, Asphodelus aestivus, Eryngium creticum, Ononis natrix and others confirm that the study area falls within a Mediterranean biogeographic zone in Jordan. Based on the obtained results, it is highly recommended thus to exert maximum efforts to conserve such limited forest cover, since Jordan, is classified as a country with dry to semidry ecosystem. In addition some of the rare and endemic recorded species occur only under forest cover, particularly the orchid species. This articles originally published at: Volume 6, Number 5, May 2015 – JBES

Journal Name: Journal of Biodiversity and Environmental Sciences (JBES)

Publication Name: International Network For Natural Sciences (INNSPUB)

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