Integrated Publishing Toolkit(IPT)

free and open access to biodiversity data

Global Register of Introduced and Invasive Species- Chad

Latest version published by Invasive Species Specialist Group ISSG on Oct 16, 2018 Invasive Species Specialist Group ISSG

This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License. The Global Register of Introduced and Invasive Species (GRIIS) presents validated and verified checklists (inventories) of introduced (alien) and invasive alien species at the country, territory, and associated island level. Phase 1 of the project focused on developing validated and verified checklists of countries that are Party to the Convention on Biological Diversity (CBD). Phase 2 which is on-going, aims to achieve global coverage including non-party countries and all overseas territories of countries e.g. Netherlands, France and United Kingdom. Species belonging to all Kingdoms are covered as well as occurring in all Environment/systems. Country/ Territory/ Island checklists are reviewed and verified by networks of country or species experts. Verified checklists/ species records as well as those under review are presented on the online GRIIS website (www.griis.org). Individual species records are flagged with a ‘yes’ for verification. Only verified checklists/ species records are presented on the GBIF Portal. This annotated checklist is of introduced (alien) and invasive alien species known to occur in Chad

Data Records

The data in this checklist 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 285 records. 2 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

  • Taxon (core)
    285
  • Distribution 
    285
  • SpeciesProfile 
    285

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.

Downloads

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 285 records in English (12 KB) - Update frequency: annually
Metadata as an EML file download in English (12 KB)
Metadata as an RTF file download in English (13 KB)

Versions

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

How to cite

Researchers should cite this work as follows:

Brundu G, Jenna Wong L, Pagad S (2018): Global Register of Introduced and Invasive Species- Chad. v1.2. Invasive Species Specialist Group ISSG. Dataset/Checklist. http://ipt.ala.org.au/resource?r=griis-chad&v=1.2

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Invasive Species Specialist Group ISSG. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 96b68c0f-0fce-4301-a789-cad7b9049a5e.  Invasive Species Specialist Group ISSG publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Participant Node Managers Committee.

Keywords

Checklist; Inventorythematic; Alien; Invasive; Validated and verified; country_TD

Contacts

Who created the resource:

Giuseppe Brundu
University of Sassari, Italy IT
Lian Jenna Wong
Research Assistant
Biodiversity Data Management Ltd
Shyama Pagad
Deputy Chair- Information
IUCN SSC Invasive Species Specialist Group (ISSG) NZ

Who can answer questions about the resource:

Shyama Pagad
Deputy Chair- Information
IUCN SSC Invasive Species Specialist Group (ISSG) NZ

Who filled in the metadata:

Shyama Pagad
IUCN SSC Invasive Species Specialist Group (ISSG)

Who else was associated with the resource:

User
Shyama Pagad
Deputy Chair- Information
IUCN SSC Invasive Species Specialist Group (ISSG) NZ

Geographic Coverage

Chad

Bounding Coordinates South West [5.091, 11.074], North East [28.459, 28.652]

Taxonomic Coverage

Animalia, Bacteria, Chromista, Fungi, Plantae, Protozoa, Viruses

Kingdom  Animalia,  Bacteria,  Chromista,  Fungi,  Plantae,  Protozoa,  Viruses

Sampling Methods

This annotated checklist is focused on introduced (alien) and invasive species that are known to occur in Chad The International Union for Conservation of Nature, (IUCN) describes an Introduced/ Alien and Invasive alien species as follows: An Introduced/ Alien species means a species, subspecies, or lower taxon occurring outside of its natural range (past or present) and dispersal potential (i.e. outside the range it occupies naturally or could not occupy without direct or indirect introduction or care by humans) and includes any part, gametes or propagule of such species that might survive and subsequently reproduce. An Invasive alien species means an alien species which becomes established in natural or semi-natural ecosystems or habitat, is an agent of change, and threatens native biological diversity.

Study Extent The geographic focus of this checklist is the country of Chad
Quality Control The draft checklist (inventory) is compiled by collating data and information through a comprehensive literature overview. Additional steps implemented to control the quality of the data are described below. Taxonomic harmonization and normalization using the GBIF taxonomic backbone In order to harmonize all species names across countries, species lists are subjected to a normalization process in which taxon rank and taxonomic status are identified and assigned. Spelling and other errors in assigning species authorship are also corrected. Data validation The checklist (inventory) compiler team completes a review and validates all the annotations especially those on provenance and 'invasiveness' status of the species based on evidence of impact. Data verification The checklist (inventory) is submitted to a network of country editors for a review of both accuracy of records, annotations and identification of any significant gaps in the data. Data verification is an iterative process and the activity is declared completed on agreement of all relevant country editors.

Method step description:

  1. Data collation and categorization Data filtering and categorization/ classification Taxonomic harmonization and normalization Data validation Data verification
  2. The published methods underpinning GRIIS and each Checklist are described in the following article: Pagad S, Genovesi P, Carnevali L, Schigel D, McGeoch MA (2018) Introducing the Global Register of Introduced and Invasive Species. Scientific Data, 5, 170202. https://www.nature.com/articles/sdata2017202

Additional Metadata

Purpose The resource will be a support to countries to make progress to achieve Aichi Biodiversity Target 9 -in the development of their National Biodiversity Strategy and Action Plans, their National Invasive Alien Species Strategy and Action Plan, target setting and monitoring.
Maintenance Description Updates with any new data and any revisions of existing data will be made on a biannual basis
Alternative Identifiers 96b68c0f-0fce-4301-a789-cad7b9049a5e
http://ipt.ala.org.au/resource?r=griis-chad