We’re sorry, but GBIF doesn’t work properly without JavaScript enabled.
Our website has detected that you are using an outdated insecure browser that will prevent you from using the site. We suggest you upgrade to a modern browser.
{{nav.loginGreeting}}
  • Get data
      • Occurrences
      • GBIF API
      • Species
      • Datasets
      • Occurrence snapshots
      • Hosted portals
      • Trends
  • How-to
    • Share data

      • Quick-start guide
      • Dataset classes
      • Data hosting
      • Standards
      • Become a publisher
      • Data quality
      • Data papers
    • Use data

      • Featured data use
      • Citation guidelines
      • GBIF citations
      • Citation widget
  • Tools
    • Publishing

      • IPT
      • Data validator
      • Scientific Collections
      • Suggest a dataset
      • New data model ⭐️
    • Data access and use

      • Hosted portals
      • Data processing
      • Derived datasets
      • rgbif
      • pygbif
      • MAXENT
      • Tools catalogue
    • GBIF labs

      • Species matching
      • Name parser
      • Sequence ID
      • Relative observation trends
      • GBIF data blog
  • Community
    • Network

      • Participant network
      • Nodes
      • Publishers
      • Network contacts
      • Community forum
      • alliance for biodiversity knowledge
    • Volunteers

      • Mentors
      • Ambassadors
      • Translators
      • Citizen scientists
    • Activities

      • Capacity enhancement
      • Programmes & projects
      • Training and learning resources
      • Data Use Club
      • Living Atlases
  • About
    • Inside GBIF

      • What is GBIF?
      • Become a member
      • Governance
      • Implementation plan
      • Work Programme
      • Funders
      • Partnerships
      • Release notes
      • Contacts
    • News & outreach

      • News
      • Newsletters and lists
      • Events
      • Awards
      • Science Review
      • Data use
  • User profile

Biodiversity description of the Crystal Mountains National Park buffer zone

Citation

Engone Obiang N L, Bissiengou P (2022). Biodiversity description of the Crystal Mountains National Park buffer zone. Version 1.2. Herbier National du Gabon. Sampling event dataset https://doi.org/10.15468/nzs7j6 accessed via GBIF.org on 2023-06-05.

Description

Data are especially provided by Institut de Pharmacopée et de médecine traditionnelles (IPHAMETRA). Data from the 123 plots of 2500 m2 (31 ha) installed in the area which will host the national projet of hydroelectric dam building have been used. Trees with diameter at breast height (dbh) ≥ 10 cm was measured. The dbh is measured with a diametric tape at approximately 1.3 m from ground, avoiding lianas growing on the trunk or 30 cm above buttresses and stilt roots.

Sampling Description

Study Extent

Data were collected from project related to vegetation description and initial state of site of Kinguélé aval project

Sampling

Non-permanent plots of 50m x 50m (0.25 ha) were estabished

Quality Control

BRAHMS were used for quality control. These data were of high quality because species identification in the field and confirmation were done by the Herbier national du Gabon botanists.

Method steps

  1. The inventory was made in grids delimiting the contiguous plots of 2500 m2 (50 m x 50 m) characterized by an identifier which consists of a letter to indicate the position of the west-east line and a number which indicates the number of the south-north line. The geographical coordinates of all corners of the plots were recorded using GPS receiver. To characterize the floristic diversity of the study area, all trees with a diameter greater than or equal to 10 cm were recorded in each plot. These trees were then identified at the specific level. In case where identification of the tree could not be completed in the field, an herbarium samples were taken in order to confirm their determination at the National Herbarium of Gabon.

Taxonomic Coverages

These data are inventory data from 123 plots that contain 9297 trees including 272 species, 186 genera and 54 families.
  1. Achariaceae, Anacardiaceae, Anisophylleaceae, Annonaceae, Apocynaceae, Aptandraceae, Bignoniaceae, Burseraceae, Capparaceae, Chrysobalanaceae, Clusiaceae, Combretaceae, Cordiaceae, Coulaceae, Dichapetalaceae, Ebenaceae, Erythropalaceae, Erythroxylaceae, Euphorbiaceae, Fabaceae, Gentianaceae, Huaceae, Hypericaceae, Irvingiaceae, Ixonanthaceae, Lamiaceae, Lauraceae, Lecythidaceae, Malvaceae, Melastomataceae, Meliaceae, Moraceae, Myristicaceae, Myrtaceae, Ochnaceae, Octoknemaceae, Pandaceae, Passifloraceae, Peraceae, Phyllanthaceae, Putranjivaceae, Rhamnaceae, Rhizophoraceae, Rubiaceae, Rutaceae, Salicaceae, Sapindaceae, Sapotaceae, Simaroubaceae, Stemonuraceae, Strombosiaceae, Urticaceae, Violaceae, Vochysiaceae.
    rank: family

Geographic Coverages

Data were collected in a buffer zone close to the Crystal Mountains National Park in Gabon

Bibliographic Citations

  1. • Sunderland, T., Walters, G., Issembe, 2004. Etude préliminaire de la végétation du parc national de Mbe, Monts de Cristal, Gabon. Rapport Carpé. • Balinga, M., Sunderland, T., Walters, G., Issembe, Y., Asaha, S., & Fombod, E. 2006. A vegetation assessment of the Waka national park, Gabon. CARPE report • Engone Obiang, N.L., Ngomanda, A., Mboma, R., Nzabi, T., Ngoye, A., Atsima, L., Ndjélé, L., Mate, J.-P., Lomba, C., & Picard, N. 2010. Spatial pattern of central African rainforests can be predicted from average tree size. Oikos 119 : 1643–1653 -

Contacts

Nestor Laurier Engone Obiang
originator
position: Researcher
IPHAMETRA/CENAREST
Arboretum de Sibang
Libreville
Estuaire
GA
Telephone: +24162461946
userId: http://orcid.org/0000-0002-2620-8657
Nestor Laurier ENGONE OBIANG
metadata author
position: Researcher
IPHAMETRA/CENAREST
Arboretum de Sibang
Libreville
Estuaire
GA
Telephone: +24162461946
email: engoneobiangnestor@gmail.com
Pulchérie Bissiengou
metadata author
position: Resarcher
Herbier National du Gabon
BP 1156
Libreville
Nestor Laurier ENGONE OBIANG
publisher
position: Researcher
IPHAMETRA
Arboretum de Sibang
Libreville
Estuaire
GA
email: engoneobiangnestor@gmail.com
userId: http://orcid.org/0000-0002-2620-8657
Puchérie Bissiengou
publisher
position: Researcher
Herbier National du Gabon
BP 1156
Libreville
Estuaire
GA
email: bissiengou_p@yahoo.fr
Nestor Laurier Engone Obiang
administrative point of contact
position: Researcher
IPHAMETRA/CENAREST
Arboretum de Sibang
Libreville
Estuaire
GA
Telephone: +24162461946
email: engoneobiangnestor@gmail.com
userId: http://orcid.org/0000-0002-2620-8657
What is GBIF? API FAQ Newsletter Privacy Terms and agreements Citation Code of Conduct Acknowledgements
Contact GBIF Secretariat Universitetsparken 15 DK-2100 Copenhagen Ø Denmark
GBIF is a Global Core Biodata Resource