Vegetation assessment and forest dynamic study of various areas in Gabon from 2000 to 2018

Evento de amostragem
Versão mais recente published by Herbier National du Gabon on mar. 20, 2019 Herbier National du Gabon
Publication date:
20 de março de 2019
Licença:
CC-BY 4.0

Baixe a última versão do recurso de dados, como um Darwin Core Archive (DwC-A) ou recurso de metadados, como EML ou RTF:

Dados como um arquivo DwC-A download 414 registros em English (202 KB) - Frequência de atualização: diariamente
Metadados como um arquivo EML download em English (30 KB)
Metadados como um arquivo RTF download em English (15 KB)

Descrição

Data are provided by Institut de Recherche en Ecologie Tropicale (IRET), Herbier National du Gabon and the Smithsonian Institution via the Rabi plot. Trees with diameter at breast height (dbh) ≥ 1cm or 10 cm was measured according the study site. The dbh is measured with a diametric tape at approximately 1.3 m from ground, avoiding lianas growing on the trunk or above buttresses and stilt roots.

Registros de Dados

Os dados deste recurso de evento de amostragem foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 414 registros.

Também existem 1 tabelas de dados de extensão. Um registro de extensão fornece informações adicionais sobre um registro do núcleo. O número de registros em cada tabela de dados de extensão é ilustrado abaixo.

Event (core)
414
Occurrence 
16664

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versões

A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.

Como citar

Pesquisadores deveriam citar esta obra da seguinte maneira:

Engone Obiang N L (2019): Vegetation assessment and forest dynamic study of various areas in Gabon from 2000 to 2018. v1.4. Herbier National du Gabon. Dataset/Samplingevent. http://ipt-gabon.gbif.fr/resource?r=vegetationforest&v=1.4

Direitos

Pesquisadores devem respeitar a seguinte declaração de direitos:

O editor e o detentor dos direitos deste trabalho é Herbier National du Gabon. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 2f41cb78-04a3-4322-ab2d-1eaa2c296aa4.  Herbier National du Gabon publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Participant Node Managers Committee.

Palavras-chave

Samplingevent; forest plots; tree identification; Gabon

Contatos

Nestor Laurier Engone Obiang
  • Originador
  • Ponto De Contato
Curator
Herbier National du Gabon
BP 1156
Libreville
Estuaire
GA
+24102461946
Nestor Laurier ENGONE OBIANG
  • Provedor Dos Metadados
  • Publicador
Curator
Herbier National du Gabon
BP 1156
Libreville
Estuaire
GA
+24102461946
Alfred Ngomanda
  • Provedor De Conteúdo
  • Provedor Dos Metadados
Director
IRET
BP 13354
Libreville
Estuaire
GA
David Kenfack
  • Provedor De Conteúdo
  • Provedor Dos Metadados
Africa Program Coordinator
ForestGEO | Smithsonian Tropical Research Institute
10th & Constitution Avenue NW
DC 20560-0166 Washington
US
202-633-4706

Cobertura Geográfica

Data were collected in the following areas of Gabon: Monts de Cristal, Sibang (Estuaire); Bagombé, Kouma, Leke, Okouma (Haut Ogooué); Haut Abanga (Moyen Ogooué), Dango, Dibwangui, Dondon-Mobi, Mandji, Mouila, Ndendé, Ovala, Waka, Yombi (Ngounié) ; Ipassa, Ivindo, Koungou, Zadié (Ogooué Ivindo); Rabi (Ogooué Maritime); Bitam (Woleu-Ntem) and Lastourville (Ogooué Lolo).

Coordenadas delimitadoras Sul Oeste [-3,864, 8,921], Norte Leste [2,416, 14,502]

Cobertura Taxonômica

These data are inventory data from 414 plots that contain 224191 trees including 722 species, 339 genera and 74 families.

Família Achariaceae, Anacardiaceae, Anisophylleaceae, Annonaceae, Apocynaceae, Aptandraceae, Araliaceae, Arecaceae, Asparagaceae, Asteraceae, Bignoniaceae, Burseraceae, Calophyllaceae, Cannabaceae, Cardiopteridaceae, Centroplacaceae, Chrysobalanaceae, Clusiaceae, Combretaceae, Connaraceae, Coulaceae, Ctenolophonaceae, Cucurbitaceae, Dichapetalaceae, Dipterocarpaceae, Ebenaceae, Erythropalaceae, Erythroxylaceae, Euphorbiaceae, Fabaceae, Gentianaceae, Huaceae, Humiriaceae, Hypericaceae, Icacinaceae, Irvingiaceae, Ixonanthaceae, Lamiaceae, Lauraceae, Lecythidaceae, Loganiaceae, Malvaceae, Melastomataceae, Meliaceae, Moraceae, Myristicaceae, Myrtaceae, Ochnaceae, Octoknemaceae, Pandaceae, Passifloraceae, Peraceae, Peridiscaceae, Phyllanthaceae, Picrodendraceae, Polygalaceae, Primulaceae, Putranjivaceae, Rhamnaceae, Rhizophoraceae, Rubiaceae, Rutaceae, Salicaceae, Santalaceae, Sapindaceae, Sapotaceae, Simaroubaceae, Stemonuraceae, Strombosiaceae, Thomandersiaceae, Urticaceae, Violaceae, Vochysiaceae

Dados Sobre o Projeto

The BID-AF2015-0038-NAC project has gathered these data that come from vegetation assessment and forest dynamic study of various areas in Gabon from 2000 to 2018. These studies have been supported by Several fundings. First by the CARPE fund, started in 2004 to assess vegetation in the national parks of Gabon. A botanical team from diffrents institutions such as ForestsResources and People, Limbe Botanic Garden, l’Herbier National du Gabon,Smithsonian Institution, Wildlife Conservation society, and the Missouri Botanical Garden was involved in order to install permanent Biodiversity Plots (BDP’s) within the national parks of Monts de Cristal and Waka (Sunderland et al. 2004; Balinga et al. 2006). Others national projects relayed to study trees diversity and forest dynamic in Gabon across the Aires-Sud 7148 project that allowed IRET to install 3 perment plots in the north of Gabon. These data were used to model spatial distribution of trees and to develop growth modelling of commercial trees (Obiang et al. 2010; Engone Obiang et al. 2012; Obiang et al. 2013; Obiang et al. 2014). But the bigest plot (25 ha) in Gabon was installed by the Smithsonian in Rabi since 2010 (Memiaghe et al. 2016). Many non permanent plots were also been installed by IRET and Herbier National du Gabon between 2011 and 2018.

Título Support for data collection of plant biodiversity in Gabon
Identificador BID-AF2015-0038-NAC
Financiamento BID-AF2015-0038-NAC funded the data mobilization whereas field collect data were funded by CARPE, Aires-Sud project number 7148, Smithsonain project number #1548 of the Gabon Biodiversity Program, IRET and Herbier National du Gabon.
Descrição da Área de Estudo The project activities were implemented in Gabon. Covering an area of 267,660 km² where forest occupies 88% of the national territory. Gabon is home to an estimated 6,000-10,000 plant species (Breteler, 1989).
Descrição do Design The data were generated in order to study vegetation assesssment and forest dynamic in various areas of Gabon.

O pessoal envolvido no projeto:

Nestor Laurier Engone Obiang
  • Curador

Métodos de Amostragem

The presented data come from either permanent or non-permanent plots. • The 1 ha permanent plots from the National parks of Monts de Cristal and Waka were established according to the standardized methodology describe in Sunderland et al (2004) and Balinga et al (2006). • The 1 ha-plots of the IRET had been divided into 100 quadrats of 10m x 10m (see Picard and Gourlet-Fleury 2008). • The 25 ha-plot of Smithsonian in Rabi was subdivided into 625 quadrats of 20 m × 20 m, with elevation recorded at the 676 grid corners. Plot establishment followed the Smithsonian-ForestGEO standard methods (Condit 1998; Anderson-Teixeira et al. 2015; Memiaghe et al. 2016). • In the non-permanent rectangular or circular plots, trees were not tagged or located. Identification of trees were done directly on the trees with dbh ≥10 cm.

Área de Estudo Data were collected from different projects related to vegetation assessment and forest dynamic studies of various areas in Gabon. Those areas were: Monts de Cristal, Sibang (Estuaire); Bagombé, Kouma, Leke, Okouma (Haut Ogooué) ; Haut Abanga (Moyen Ogooué), Dango, Dibwangui, Dondon-Mobi, Mandji, Mouila, Ndendé, Ovala, Waka, Yombi (Ngounié) ; Ipassa, Ivindo, Koungou, Zadié (Ogooué Ivindo) ; Rabi (Ogooué Maritime); Bitam (Woleu-Ntem) and Lastourville (Ogooué Lolo).
Controle de Qualidade BRAHMS, XAMPP were used for quality control. These data were of high quality because they were subject of numerous scientific publications.

Descrição dos passos do método:

  1. Different steps were described in the following papers: - Condit (1998) - Sunderland et al (2004) - Balinga et al (2006) - Picard et Gourlet-Fleury 2008) - Anderson-Teixeira et al. (2015) - Memiaghe et al. (2016)

Citações bibliográficas

  1. - 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., White, L., Jeffery, K.J., Chézeaux, E., & Picard, N. 2012. A growth model for azobé, Lophira alata in Gabon. Bois et Forêts des Tropiques 65–72. - Memiaghe, H.R., Lutz, J.A., Korte, L., Alonso, A., & Kenfack, D. 2016. Ecological Importance of Small-Diameter Trees to the Structure, Diversity and Biomass of a Tropical Evergreen Forest at Rabi, Gabon. PLOS ONE 11: e0154988. - Obiang, N.L.E., Ngomanda, A., Hymas, O., Chézeauxl, É., & Picard, N. 2014. Diagnosing the demographic balance of two light-demanding tree species populations in central Africa from their diameter distribution. Forest Ecology and Management 313: 55–62. - Obiang, N.L.E., 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. - Obiang, N.L.E., Ngomanda, A., White, L.J., Jeffery, K.J., Chézeaux, É., & Picard, N. 2013. Disentangling the effect of size and competition: a growth model for Aucoumea klaineana. Annals of forest science 70: 241–249. - Picard, N., & Gourlet-Fleury, S. 2008. Manuel de référence pour l’installation de dispositifs permanents en forêt de production dans le Bassin du Congo. COMIFAC. - Sunderland, T., Walters, G., & Issembe, Y. 2004. Étude préliminaire de la végétation du parc national de Mbé, Monts de Cristal, Gabon. Herbier National du Gabon, Limbe Botanical & Zoological Gardens, Missouri Botanical Garden, Forests Resources and People, Smithsonian National Zoological Park, Libreville, Gabon, Carpe report.

Metadados Adicionais

Identificadores alternativos 2f41cb78-04a3-4322-ab2d-1eaa2c296aa4
http://ipt-gabon.gbif.fr/resource?r=vegetationforest