Inventory of the orchid plants species in the Biosphere Reserve of Pendjari and surround areas in North West Benin

Enregistrements de données

Les données de cette ressource occurrence ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 98 enregistrements.

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Versions

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

ASSEDE E S P (2020): Inventory of the orchid plants species in the Biosphere Reserve of Pendjari and surround areas in North West Benin. v1.5. Laboratoire d’Ecologie, de Botanique et de Biologie végétale (LEB). Dataset/Occurrence. http://ipt.gbifbenin.org/resource?r=assede2&v=1.5

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Laboratoire d’Ecologie, de Botanique et de Biologie végétale (LEB). Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : dcb5f313-ff74-41d0-a276-a67e915e8207.  Laboratoire d’Ecologie, de Botanique et de Biologie végétale (LEB) publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Benin.

Mots-clé

Occurrence; Orchid conservation; habitat conditions; Biosphere Reserve of Pendjari; North West of Benin

Contacts

Couverture géographique

North West of Benin

Couverture temporelle

Méthodes d'échantillonnage

The vegetation map of the reserve was used to identify the three main vegetation types (savannas, woodlands and gallery forests). Both protected and unprotected areas were included in the study. In each vegetation type, points were randomly selected to serve as the starting point of a transect. In total, 65 transects of each at least 3 km long, were explored for the presence of orchid species. Three-person teams were used to intensively survey the trees and the vegetation on the ground for the presence of epiphytic and terrestrial orchids. One team member monitored the compass bearing of the transect, and the other two members scanned the vegetation for orchids. The presence of orchid species was confirmed by two team members. Sample plots were selected along the transects, based on the presence of orchid species. Rectangular plots (10 m x 50 m) were sampled in gallery forests (due to the linear shape of the gallery forests) and Square plots (30 m x 30 m) in savannas, woodlands and fallows. At least 25 plots were sampled per vegetation type, and 90 plots in total (with 52 plots in protected areas and 38 in unprotected areas). The species and number of individuals of all orchid species (terrestrial and epiphytic) and the host trees of epiphytic orchids were recorded within each plot. The dominant plant species of tree and shrub layers were recorded. Simultaneously, field data on environmental variables were collected. These included the vegetation type, vegetation cover, soil texture, and the presence of rocks or stones. Signs of human disturbance, including agriculture, grazing, tree cutting and pruning, were also collected within the plots of unprotected areas. Herbarium specimens of all recorded orchid species were prepared and identified with the National flora and at the National Herbarium of Benin Republic.

Description des étapes de la méthode:

1. The vegetation map of the reserve was used to identify the three main vegetation types (savannas, woodlands and gallery forests). Both protected and unprotected areas were included in the study. In each vegetation type, points were randomly selected to serve as the starting point of a transect. In total, 65 transects of each at least 3 km long, were explored for the presence of orchid species. Three-person teams were used to intensively survey the trees and the vegetation on the ground for the presence of epiphytic and terrestrial orchids. One team member monitored the compass bearing of the transect, and the other two members scanned the vegetation for orchids. The presence of orchid species was confirmed by two team members. Sample plots were selected along the transects, based on the presence of orchid species. Rectangular plots (10 m x 50 m) were sampled in gallery forests (due to the linear shape of the gallery forests) and Square plots (30 m x 30 m) in savannas, woodlands and fallows. At least 25 plots were sampled per vegetation type, and 90 plots in total (with 52 plots in protected areas and 38 in unprotected areas). The species and number of individuals of all orchid species (terrestrial and epiphytic) and the host trees of epiphytic orchids were recorded within each plot. The dominant plant species of tree and shrub layers were recorded. Simultaneously, field data on environmental variables were collected. These included the vegetation type, vegetation cover, soil texture, and the presence of rocks or stones. Signs of human disturbance, including agriculture, grazing, tree cutting and pruning, were also collected within the plots of unprotected areas. Herbarium specimens of all recorded orchid species were prepared and identified with the National flora and at the National Herbarium of Benin Republic.

Citations bibliographiques

1. ASSEDE E.S.P., DJAGOUN C.A.M.S, AZIHOU F.A., GOGAN Y.S.C., KOUTON M.D., ADOMOU A.C., GELDENHUYS C.J., CHIRWA W.P., SINSIN B. 2018. Efficiency of conservation areas to protect orchid species in Benin, West Africa. South African Journal of Botanic 116: 230-237. https://doi.org/10.1016/j.sajb.2018.02.405 https://doi.org/10.1016/j.sajb.2018.02.405
2. ASSEDE E.S.P., DJAGOUN C.A.M.S, AZIHOU F.A., KOUTON M.D., GOGAN Y.S.C., GELDENHUYS C.J., CHIRWA W.P., SINSIN B. 2017. Folk perceptions and patterns of use of orchid species in Benin, West Africa. Flora et Vegetatio Sudano-Sambesica 20: 26-36.

Métadonnées additionnelles