Description
Officially constituted with samples assembled according to international standards, the only one of its kind in the whole country, the herbarium of the University of Lome, hosted in the Department of Botany of the Faculty of Sciences, acts as national herbarium. It contains more than 15,000 specimens from field crops. These samples assembled according to international standards are classified by genera and families of the major taxonomic groups. This dataset is an extraction from the RIHA database.
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 37 716 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
Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.
Comment citer
Les chercheurs doivent citer cette ressource comme suit:
Radji R P (2011): Togo National Herbarium Database. v3.8. Université de Lomé. Dataset/Occurrence. http://ipt-togo.gbif.fr/resource?r=herbarium_ul&v=3.8
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Université de Lomé. 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 : b05dd467-aaf8-4c67-843c-27f049057b78. Université de Lomé publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Togo.
Mots-clé
Togo; University of Lome; Occurrence; herbarium sheets; RIHA; Magnoliopsida; Liliopsida; herbarium collection; Plants; West Africa.; Occurrence; Specimen
Contacts
- Créateur ●
- Personne De Contact
http://orcid.org/ORCID http://orcid.org/0000-0001-6597-8438
- Fournisseur Des Métadonnées
- Personne De Contact
Couverture géographique
The description dataset collection comes from all over Togo. Indeed, Togo is a country in West Africa which has an area of 56,600 km². It stretches for 600 km from North to South and East to West between 50 and 150 km wide (Figure 7). According to Ern subdivision (1979), Togo Herbarium specimens were collected through the 5 Togo ecological zones (ZE), from north to south and from east to west (Figure 7 & 12). Indeed, ZE.I refers to the Northern Plains Savannah, with Sudan savanna as the predominant vegetation with few islands of dry forests and gallery forests. ZE.II is covered with a mosaic of dry forests of mountain and forest galleries and climate is Sudano-Guinean. ZE.III corresponds to the Guinean savannas of central area plains enjoying a tropical climate with one rainy season. Semi-deciduous forests are noticed in the southern part and dry forests in the northern part. ZE.IV covers the southern part of the Togo Mountains and has a sub-equatorial transition climate. The vegetation is constituted of rainforests, on deep red lateritic soils. This ZE is the domain of dense semi-deciduous forests. The latest one, ZE.V is a coastal plain of southern Togo with a subequatorial climate marked by a deficit in rainfall. It's characterized by a climate with two rainy seasons and the vegetation is set up by a mosaic of savannah, farmland and dry forests (Kokou and Caballé, 2000).
| Enveloppe géographique | Sud Ouest [6,228, 0], Nord Est [11,092, 1,67] |
|---|
Couverture taxonomique
Although the herbarium contains specimens from all mayor botanical groups Phanerogams (angiosperms-gymnosperms), Pteridophyta (ferns), Bryophyta and Thallophyta (algae-lichens-fungi),the database covers exclusively Angiosperms (Dicotyledonous and Monocotyledonous). The Togo flora contains 3,451 species (including plants in the wild and cultivated). Table 1 and Figure 4 to 6 give an idea on each taxonomic group is prepresented and the distribution between wild and ornamental specimens (Radji et al., 2010).
| Kingdom | Plantae |
|---|
Taxonomic ranks Kingdom: Plantae Division: Magnoliophyta (Cronquist, Takht. & W. Zimm., 1996) Phylum: Spermaphyta Class: Magnoliopsida, Liliopsida Family: Agavaceae, Alismataceae, Amaryllidaceae, Anthericaceae, Araceae, Asparagaceae, Aspidiaceae, Cannaceae, Commelinaceae, Costaceae, Cyperaceae, Dioscoreaceae, Dracaenaceae, Droseraceae, Eriocaulaceae, Erythroxylaceae, Gramineae, Hyacinthaceae, Hydrocharitaceae, Hydrophyllaceae, Hypoxidaceae, Iridaceae, Lemnaceae, Liliaceae, Linaceae, Marantaceae, Musaceae, Najadaceae, Opiliaceae, Orchidaceae, Palmae, Pandanaceae, Pontederiaceae, Smilacaceae, Taccaceae, Typhaceae, Xyridaceae, Zingiberaceae. Acanthaceae, Aizoaceae, Amaranthaceae, Anacardiaceae, Annonaceae, Apocynaceae, Araliaceae, Aristolochiaceae, Asclepiadaceae, Avicenniaceae, Azollaceae, Balanitaceae, Balanophoraceae, Balsaminaceae, Basellaceae, Begoniaceae, Bignoniaceae, Bixaceae, Bombacaceae, Boraginaceae, Burseraceae, Cactaceae, Campanulaceae, Capparaceae, Caricaceae, Caryophyllaceae, Casuarinaceae, Cecropiaceae, Celastraceae, Ceratophyllaceae, Chenopodiaceae, Chrysobalanaceae, Cochlospermaceae, Colchicaceae, Combretaceae, Compositae, Connaraceae, Convolvulaceae, Crassulaceae, Cruciferae, Cucurbitaceae, Dichapetalaceae, Dilleniaceae, Dipterocarpaceae, Ebenaceae, Euphorbiaceae, Flacourtiaceae, Flagellariaceae, Gentianaceae, Gesneriaceae, Goodeniaceae, Guttiferae, Haloragaceae, Hernandiaceae, Hippocrateaceae, Icacinaceae, Irvingiaceae, Labiatae, Lauraceae, Lecythidaceae, Leeaceae, Leguminosae, Leguminosae-Caesalpinioideae, Leguminosae-Mimosoideae, Leguminosae-Papilionoideae, Lentibulariaceae, Loganiaceae, Loranthaceae, Lycopodiaceae, Lythraceae, Malpighiaceae, Malvaceae, Melastomataceae, Meliaceae, Menispermaceae, Molluginaceae, Moraceae, Moringaceae, Myristicaceae, Myrsinaceae, Myrtaceae, Nyctaginaceae, Nymphaeaceae, Ochnaceae, Olacaceae , Oleaceae, Onagraceae, Opiliaceae, Oxalidaceae, Pandaceae, Papaveraceae, Passifloraceae, Pedaliaceae, Phytolaccaceae, Piperaceae, Pittosporaceae, Plumbaginaceae, Podostemaceae, Polygalaceae, Polygonaceae, Portulacaceae, Proteaceae, Punicaceae, Ranunculaceae, Rhamnaceae, Rhizophoraceae, Rosaceae, Rubiaceae, Rutaceae, Salicaceae, Santalaceae, Sapindaceae, Sapotaceae, Saxifragaceae, Scrophulariaceae, Simaroubaceae, Solanaceae, Sphenocleaceae, Sterculiaceae, Thymelaeaceae, Tiliaceae, Turneraceae, Ulmaceae, Umbelliferae, Urticaceae, Verbenaceae, Violaceae, Vitaceae, Zygophyllaceae.
| Phylum | Spermaphyta |
|---|
Couverture temporelle
| Epoque de vie | 1970-2018 |
|---|
Données sur le projet
The Biodiversity Information for Development (BID) program in Togo, whose code and title are BID-AF2015-0004-NAC: Strengthening the biodiversity stakeholder's network in Togo, is an illustration of the functioning of the GBIF node in Togo (https://www.gbif.org/project/82693/strengthening-the-biodiversity-stakeholders-network-in-togo). Its main objective is to strengthen this network at the national level and to encourage the use of shared data but also and especially those available in open access on www.gbif.org, through awareness and capacity enhancement of biodiversity actors in Togo.
| Titre | Strengthening the biodiversity stakeholders network in Togo |
|---|---|
| Identifiant | BID-AF2015-0004-NAC |
| Financement | The project intitled BID-AF2015-0004-NAC: "Strengthening the biodiversity stakeholder's network in Togo" is funded by European Union through GBIF community. |
Les personnes impliquées dans le projet:
Méthodes d'échantillonnage
The specimens deposited in the TOGO Herbarium comes from diverse ecofloristic area, which is outcome of several research projects mainly first lecturers in Botany in the university followed by the first PhD students learning in French universities and for who field works was conductied in Togo depositing the specimens. As a result, specimens are not collected using a uniform protocol. Of the materials from donations or purchases (e.g. herbarium of Ern) the protocol followed for the specimens' collection is unknown. The methodology used in collecting plants by researchers from the Botany area may vary depending on the specific objectives pursued in each case. A voucher herbarium specimen is a pressed plant sample deposited for future reference. It supports research work and may be examined to verify the identity of the specific plant used in a study. When possible, duplicates of specimens have been send to recognized herbaria committed to long-term maintenance. These where: P (MNHN, Paris), STR (Institute of Botany, Strasbourg), KEW (England), B (Berlin, Germany), MPU (Montpellier, France), MO (Missouri Botanical Garden , USA), BR (Botanical Garden Meise, Belgium), WAG and K (Royal Botanic Gardens, UK), LMU, MOZ (Mozambique). During the SEP project (2008-2012), 6 students in Master's degree in Plant Biology were recruited to assemble herbarium specimens deposited by collectors in presses and sometimes in Canson papers. Most of specimens have original collectors’ labels. Trained to the use of RIHA database (under Microsoft Access), the data was digitized as and when the specimens were mounted. The result is the extraction of this list exported under Excel.
| Etendue de l'étude | The analysis of this dataset reveals that the eco-floristic zone IV is the most significant and prospected with 31.63% of the herbarium specimens whereas the ecological zone II remains the least prospected with 11.33% of the collected specimens. Although quite rich, Togolese spontaneous flora remains incompletely known (Akpagana 1992b, Radji 1997, Kokou 1998). |
|---|---|
| Contrôle qualité | The present dataset was updated to match the APG III classification for the orders and families of flowering plants (APGIII, 2009) and all species names were checked for validity (spelling, synomyms and authorship) against online databases: http://www.ipni.org/ipni/plantnamesearchpage.do ; http://kiki.huh. harvard.edu/databases/specimen_index.html;http://kiki.huh.harvard.edu/databases/botanist_index.html; http://www.theplantlist.org/ ; http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php. |
Description des étapes de la méthode:
- Specimens are pressed in a plant press, which consists of a wooden frame (for rigidity), corrugated cardboard ventilators (to allow air to flow through the press), blotter paper (to absorb moisture), and folded paper, typically a newspaper (to contain the plant material). The plant press is tightened using straps with buckles or bolts with wing nuts. The objective of pressing plants is to extract moisture in the shortest period of time, while preserving the morphological integrity of the plant, and to yield material that can be readily mounted on herbarium paper (an acid-free cardstock) for long-term storage. In order to fit on a standard herbarium sheet, a plant specimen have been pressed flat to no more than 11 x 16 inches. For the specimen that will not fit those dimensions, it may be folded or cut into sections. Multiples of smaller plants may be pressed together in order to provide ample material for mounting and study. Small loose pieces, such as seeds, may need to be placed in a small paper packet inside of the newspaper. Large fruits or bulbs are often cut in half lengthwise or in slices prior to pressing. In order to insure rapid and thorough drying, extremely succulent materials such as cactus stems may need to be sliced open and some of the fleshy interior scraped out. Knowing that a plant specimen is incomplete without label data, label data must be incorporate with the following important elements: scientific name, determiner of the scientific name; detailed location; habitat, date of collection, collector name and number and plant description as well.
Métadonnées additionnelles
| Identifiants alternatifs | b05dd467-aaf8-4c67-843c-27f049057b78 |
|---|---|
| http://ipt-togo.gbif.fr/resource?r=herbarium_ul |