Description
The Royal Botanical Gardens Herbarium (HAM) houses 62,000 accessioned vascular plant specimens from 191 families. After its founding in 1950, approximately 9000 specimens were collected by Ecologist Aleksander Tamsalu over the course of a few years. The collection has a focus on the local floras of Burlington and Hamilton, Ontario, with approximately half of the collection from specifically within the Royal Botanical Gardens' Nature Sanctuaries and to a smaller degree, its cultivated areas. Notable specimens include nomenclatural standards of Syringa and type specimens of the Gentianaceae as described by Dr. James Pringle. HAM is the only Canadian herbarium to accept nomenclatural standards. HAM incorporated the herbarium of McMaster University, Hamilton College (MCM) in 1966. Other notable, historical collections include those of Christian Ramsay Brown (Lady Dalhousie) and of the Hamilton Association for the Advancement of Literature, Science and Art. HAM continues to accession an average of 385 specimens yearly.
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 33 122 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:
Royal Botanical Gardens Herbarium (HAM), Burlington, Ontario.
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Royal Botanical Gardens Herbarium (HAM). En vertu de la loi, l'éditeur a abandonné ses droits par rapport à ces données et les a dédié au Domaine Public (CC0 1.0). Les utilisateurs peuvent copier, modifier, distribuer et utiliser ces travaux, incluant des utilisations commerciales, sans aucune restriction.
Enregistrement GBIF
Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 5a8cd069-8096-4918-9d61-d63f8e71a17c. Royal Botanical Gardens Herbarium (HAM) publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Canada Biodiversity Information Facility.
Mots-clé
HAM; Royal Botanical Gardens Herbarium; RBG; vascular plants; Occurrence; Specimen; Canadensys; North America; Canada; Ontario; Hamilton; Burlington; collection; Pringle; Gentian; Gentiana; Gentianella; Gentianopsis; Gentianaceae; Lilac; Syringa; nomenclatural standard; type specimen; Specimen
Contacts
- Fournisseur De Contenu ●
- Fournisseur Des Métadonnées ●
- Créateur
- Fournisseur Des Métadonnées ●
- Conservateur ●
- Personne De Contact
Couverture géographique
51% of the digitized HAM collection is representative of Royal Botanical Gardens' Nature Sanctuaries and to a small degree its horticultural collections. An additional 42% of the specimens were collected in Ontario, Canada. Two percent of the collection displays representation from other continents with no specimens from Antarctica. Royal Botanical Gardens coverage is overrepresented in the currently digitized collection based on the priority to digitize locally collected specimens first. In the physical collection, it is still the dominant representation, but likely less than 51%.
| Enveloppe géographique | Sud Ouest [-90, -180], Nord Est [90, 180] |
|---|
Couverture taxonomique
By class, the digitized collection at HAM contains 89% Magnoliopsida, 8% Polypodiopsida, 2% Pinopsida, and 2% Lycopodiopsida The families most represented are Cyperaceae (9%), Asteraceae (8%), Rosaceae (7%), Poaceae (7%) and Oleaceae (4%).
| Family | Cyperarceae, Asteraceae, Rosaceae, Poaceae, Oleaceae |
|---|
Couverture temporelle
| Epoque de formation | 1950 - Present |
|---|
Méthodes d'échantillonnage
The label digitization protocol follows two periods. First, two thirds of the specimens in this resource (21,961 specimens) were transcribed in full into a Microsoft Access database (2002 – 2009). In 2011, this data was batch imported into the current database, BG-Base. Since then, the full label text has been manually entered into BG-Base by botany interns (2011 – Present). Specimen images were captured and saved as .jpg files using a book scanner (2010 – 2012) or a HerbScan flatbed scanner (2015 – Present). Moving forward, the current focus for digitization is newly collected specimens. New digitization protocols to improve the rate of label transcription and to georeference the legacy specimens are to be determined.
| Etendue de l'étude | Label digitization and image capture of vascular plant specimens from the Royal Botanical Gardens Herbarium (HAM). |
|---|---|
| Contrôle qualité | In the past decade, label transcription has been carried out by botany interns trained to use BG-Base. However, on review of the dataset, there were still issues of unfilled fields, misuse of free text fields, etc. Therefore, the data was cleaned prior to transformation to fit the Darwin Core terms. Some fields such as coordinates, countries or abundances were populated by scraping free text fields for keywords. Other measures of control include setting range constraints for valid dates or coordinates. Future transcriptions will follow stricter controlled vocabularies and can be expected to contain fewer errors. |
Description des étapes de la méthode:
- Newly collected specimens are digitized systematically.
- Specimens are identified by trained field botanists.
- Specimen field notes are then transcribed in BG-Base and a label is created.
- The specimen is mounted with the label affixed and frozen at -30°C for seven days.
- Specimens are then scanned and filed into the collection.
- Legacy specimens are digitized opportunistically, but with an emphasis on locally collected specimens.
- Determinations are made or updated if the user is qualified and time permits.
- Specimen and annotation labels are transcribed in BG-Base using the HAM number present on the specimen.
- Annotation labels are printed and affixed if applicable.
- Specimens are then frozen at -30°C for seven days.
- Specimens are re-filed into the collection.
Données de collection
| Nom de la collection | Royal Botanical Gardens Herbarium (HAM) |
|---|
| Méthode de conservation des spécimens | Dried and pressed, Mounted |
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Métadonnées additionnelles
| Identifiants alternatifs | 10.5886/kcwotj |
|---|---|
| 5a8cd069-8096-4918-9d61-d63f8e71a17c | |
| https://data.canadensys.net/ipt/resource?r=rbg-specimens |