BIOGEOnet : Bryophytes occurrences in Wallonia

Latest version published by University of Liège on Feb 22, 2021 University of Liège
Publication date:
22 February 2021
Published by:
University of Liège
CC-BY-NC 4.0

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 301,361 records in English (11 MB) - Update frequency: annually
Metadata as an EML file download in English (11 KB)
Metadata as an RTF file download in English (12 KB)


"BIOGEOnet: Bryophytes occurrences in Wallonia" is a dataset that includes data on the distribution of mosses, anthoceroses and liverworts mapped in the IFBL grid system (4km x 4Km).

These data are the result of a colossal prospecting work initiated in the 1980s by André Sotiaux with the aim of establishing a precise picture of the distribution of the 720 species of bryophytes in the Walloon region.

The data are centralised in the BIOGEOnet database, which continues to be fed by new observations.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 301,361 records.

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.


The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Sotiaux A, Vanderpoorten A, Dopagne C (2021): BIOGEOnet : Bryophytes occurrences in Wallonia. v1.0. University of Liège. Dataset/Occurrence.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is University of Liège. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: a76f8527-23e8-4ba5-bdff-f9821bdac187.  University of Liège publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Belgian Biodiversity Platform.


Bryophytes; Wallonia; Belgium; Mosses; Anthoceroses; Liverworts; Atlas; Distribution; Regional Inventory; Observation


André Sotiaux
  • Content Provider
  • Originator
Alain Vanderpoorten
  • Metadata Provider
  • Originator
  • Point Of Contact
Research director, FRS-FNRS
University of Liège
Claude Dopagne
  • Metadata Provider
  • Originator
  • Point Of Contact
Scientific officer
Natagriwal asbl
B4000 Liège

Geographic Coverage

An overwhelming majority of the data comes from Wallonia. However, the dataset alsoincludes data from neighbouring regions and countries (Flanders, Luxembourg, France, etc.).

Bounding Coordinates South West [49.489, 2.535], North East [51.475, 6.599]

Taxonomic Coverage

Bryophyta S.L. The dataset covers 726 taxa (695 species, 2 genera, 29 subspecies).

Phylum Bryophyta (Mosses s.s), Hepaticophyta (Liverworts), Anthocerotophyta (Hornworts)

Temporal Coverage

Start Date / End Date 1979-07-10 / 2021-01-10

Sampling Methods

IFBL prospecting is designed to establish an exhaustive picture of the square diversity of Bryophytes. The squares are not surveyed in their entirety and efforts are concentrated on the different types of habitats that are present. Each square has been surveyed for at least one full day, and this effort is adapted according to the difficulty of access and the species richness encountered.

Study Extent The data were mainly collected in Wallonia, from the early 1980s to the present day. Most of the data were collected by prospecting 4kmx4km IFBL squares with the aim of establishing a detailed regional inventory. The dataset also includes opportunistic observations and other records collected in more specific contexts, included BIOGEOnet database.
Quality Control Samples have been systematically collected for species that are difficult to identify or rare, and are kept in the herbarium of A.Sotiaux and in the herbarium of the University of Liège.

Method step description:

  1. Field prospection in different contexts.
  2. Aggregation into the BIOGEOnet database.
  3. Extraction to DarwinCore.

Bibliographic Citations

  1. Sotiaux, A. et Vanderpoorten, A. 2015. Atlas des Bryophytes (mousses, hépatiques, anthocérotes) de Wallonie (1980-2014). Publication du Département de l'Etude du Milieu Naturel et Agricole (SPW-DGARNE), Série << Faune - Flore - Habitats >> n°9, Gembloux, Tome I,384pp, et Tome II, 680pp.

Additional Metadata