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Marie-Victorin Herbarium (MT) - Plantes vasculaires

Dataset homepage

Citation

Brouillet L, Sinou C (2022). Marie-Victorin Herbarium (MT) - Plantes vasculaires. Version 14.11. Université de Montréal Biodiversity Centre. Occurrence dataset https://doi.org/10.5886/rzav8bu2 accessed via GBIF.org on 2023-02-02.

Description

The Marie-Victorin Herbarium (MT) is the second largest university herbarium in Quebec, and ranks fourth among all Canadian herbaria. It includes about 680,000+ vascular plants. Half of the material is Canadian, but representation is global. Recently, the WAT herbarium was acquired and is now incorporated within MT, though specimens are still to be cited with the WAT acronym. The MT and WAT datasets are individually shown in the dataset, though they all belong to MT. The current dataset includes the 164,000+ digitized specimens from the collection.

Sampling Description

Study Extent

Digitization and photography of vascular plant specimens from the Marie-Victorin Herbarium (MT, including WAT)

Sampling

Originally, data were manually digitized as text from specimen labels, without photography. Currently, digitization still occurs as before for specific projects, but a new process based on specimen photography has been initiated, with the aim of increasing the pace of data capture. The process is: minimal digitization of specimen, photography (photos stored on photo server accessible via URL address), publication of minimally digitized data with photo. This will be followed eventually by full digitization either of targeted collections or via crowd sourcing (in development). All specimens newly acquired by MT and returned loans are digitized (when data are not provided by donor; MT encourages donors to provide digital data used to generate labels) and photographed.

Quality Control

Initially, legacy data had been formatted to fit the new database structure and cleaned as well as possible, though they still contain inconsistencies. They are being corrected both opportunistically and in a systematic manner for determinations and geography data. Inaccurate georeferenced data are currently being corrected. New records are entered using controlled vocabularies where relevant and should contain fewer errors. Data from donations are processed via a workbench and compared with the controlled vocabularies to ensure consistency. Specimens are validated by a taxonomist before databasing to ensure identification accuracy.

Method steps

  1. Examine specimen and annotations labels. Verify and update determination if qualified. Search specimen record in collection database and update where necessary, or create new record and populate fields with the information on the specimen label. Use controlled vocabularies where relevant. Determinations are recorded in a related table (included in this dataset as http://rs.gbif.org/extension/dwc/identification.xml), as are related projects and specimen exchange history.
  2. Verify locality provided on specimen labels with online databases to ensure quality of geographic data. Georeferences provided on labels are validated using online maps and GIS tools and corrected at need, with the addition of a measure of inaccuracy.
  3. Print the newly generated specimen number onto the physical specimen, to be used as reference to the datase and as accession number in the collection.

Taxonomic Coverages

This dataset includes all digitized vascular plants and bryophytes in the collection. The top 3 families are Cyperaceae (15%), Asteraceae (9%) and Poaceae (5%). For more detailed information about the whole collection, see our inventory at https://data.canadensys.net/ipt/resource?r=mt-inventory
  1. Plantae
    common name: Plants rank: kingdom
  2. Equisetopsida
    common name: Terrestrial plants rank: class
  3. Lycopodiidae
    common name: Lycopods rank: subclass
  4. Psilotidae
    rank: subclass
  5. Ophioglossidae
    rank: subclass
  6. Marattiidae
    rank: subclass
  7. Polypodiidae
    common name: Ferns rank: subclass
  8. Equisetidae
    common name: Horsetails rank: subclass
  9. Cycadidae
    common name: Cycads rank: subclass
  10. Ginkgoideae
    common name: Ginkgo rank: subclass
  11. Gnetidae
    rank: subclass
  12. Pinidae
    common name: Conifers rank: subclass
  13. Magnoliidae
    common name: Angiosperms rank: subclass

Geographic Coverages

Global terrestrial coverage (except Antartica). Over 88% of the specimens in this dataset are collected in Canada, of which 70% in the province Quebec and 19.5% in Newfoundland. 5% of the specimens are from the United States and 3.5% from Cuba. For more detailed information about the whole collection, see our inventory at http://dataset.canadensys.net/mt-inventory.

Bibliographic Citations

Contacts

Luc Brouillet
originator
position: Curator
Université de Montréal Biodiversity Centre
4101 rue Sherbrooke est
Montreal
H1X2B2
Quebec
CA
Telephone: 514-343-2142
email: luc.brouillet@umontreal.ca
homepage: http://www.irbv.umontreal.ca/luc-brouillet
Carole Sinou
metadata author
position: Biodiversity Informatics Manager
Université de Montréal Biodiversity Centre
4101 rue Sherbrooke est
Montreal
H1X2B2
Quebec
CA
email: carole.sinou@umontreal.ca
Luc Brouillet
custodian steward
position: Curator
Université de Montréal Biodiversity Centre
4101 rue Sherbrooke est
Montreal
H1X2B2
Quebec
CA
email: luc.brouillet@umontreal.ca
homepage: http://www.irbv.umontreal.ca/luc-brouillet
Geoffrey Hall
custodian steward
position: Collection manager
Université de Montréal Biodiversity Centre
4101 rue Sherbrooke est
Montreal
H1X2B2
Quebec
CA
email: geoffrey.hall@umontreal.ca
Carole Sinou
metadata author
position: Biodiversity Informatics Manager
Université de Montréal Biodiversity Centre
4101 rue Sherbrooke est
Montreal
H1X2B2
Quebec
CA
email: carole.sinou@umontreal.ca
userId: http://orcid.org/0000-0002-6718-6669
Étienne Léveillé-Bourret
curator
position: Curator
Université de Montréal Biodiversity Centre
4101 rue Sherbrooke est
Montreal
H1X2B2
Quebec
CA
email: etienne.leveille-bourret@umontreal.ca
homepage: https://www.irbv.umontreal.ca/personnel/chercheurs/etienne-leveille-bourret
userId: http://orcid.org/0000-0002-0069-0430
Luc Brouillet
administrative point of contact
position: Former curator
Université de Montréal Biodiversity Centre
4101 rue Sherbrooke est
Montreal
H1X2B2
Quebec
CA
email: luc.brouillet@umontreal.ca
homepage: http://www.irbv.umontreal.ca/luc-brouillet
Étienne Léveillé-Bourret
administrative point of contact
position: Curator
Université de Montréal Biodiversity Centre
4101 rue Sherbrooke est
Montreal
H1X2B2
Quebec
CA
email: etienne.leveille-bourret@umontreal.ca
homepage: https://www.irbv.umontreal.ca/personnel/chercheurs/etienne-leveille-bourret
userId: http://orcid.org/0000-0002-0069-0430
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