This is a list of biodiversity databases. Biodiversity databases store taxonomic

Taxonomy

Taxonomy is the science of identifying and naming species, and arranging them into a classification. The field of taxonomy, sometimes referred to as "biological taxonomy", revolves around the description and use of taxonomic units, known as taxa...

 information which provide information on the biodiversity

Biodiversity

Biodiversity is the degree of variation of life forms within a given ecosystem, biome, or an entire planet. Biodiversity is a measure of the health of ecosystems. Biodiversity is in part a function of climate. In terrestrial habitats, tropical regions are typically rich whereas polar regions...

 of a particular area or group of living organisms. They may store specimen-level information, species-level information, information on nomenclature, or any combination of the above. Most are available online.

Specimen-focused databases contain data about individual specimens, as represented by vouchered museum specimens, collections of specimen photographs, data on field-based specimen observations and morphological or genetic data. Species-focused databases contain information summarised at the species-level. Some species-focused databases attempt to compile comprehensive data about particular species (FishBase

FishBase

FishBase is a comprehensive database of information about fish species . It is the largest and most extensively accessed online database on adult finfish on the web...

), while others focus on particular species attributes, such as checklists of species in a given area (FEOW) or the conservation status of species (CITES or IUCN Red List

IUCN Red List

The IUCN Red List of Threatened Species , founded in 1963, is the world's most comprehensive inventory of the global conservation status of biological species. The International Union for Conservation of Nature is the world's main authority on the conservation status of species...

). Nomenclators act as summaries of taxonomic revisions and set a key between specimen-focused and species-focused databases. They do this because taxonomic revisions use specimen data to determine species limits.

Name	Focus	Collection
All Catfish Species Inventory	Catfish Catfish Catfishes are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the heaviest and longest, the Mekong giant catfish from Southeast Asia and the second longest, the wels catfish of Eurasia, to detritivores...	information collated by genera, including estimated numbers of species, taxonomic experts
Arctos	Specimen holdings of several natural history museums, agencies, and accessible private collections	Vertebrates, invertebrates, parasites, vascular and non-vascular plants, many with images and extensive usage data.
AntWeb	Ant Ant Ants are social insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants evolved from wasp-like ancestors in the mid-Cretaceous period between 110 and 130 million years ago and diversified after the rise of flowering plants. More than... s	Specimen information, collection details, photographs, higher taxonomy
ASEAN Biodiversity Information Sharing Service (BISS)	Amphibians, birds, butterflies, dragonflies, edible plants, freshwater fishes, mammals, plants, reptiles and Malesian mosses of Southeast Asia Southeast Asia Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...	IUCN status, habitat, regional presence/absence, description, classification
CITES species database	all species ever listed in CITES Appendices I, II or III	scientific names, higher taxonomy, distribution, photos and CITES quotas
FishBase FishBase FishBase is a comprehensive database of information about fish species . It is the largest and most extensively accessed online database on adult finfish on the web...	Fish Fish Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...	higher taxonomy, common names, distribution, IUCN Redlist status
Freshwater Ecoregions of the World (FEOW)	Freshwater ecoregions	Maps of species and endemic numbers.
HerpNET	Amphibian Amphibian Amphibians , are a class of vertebrate animals including animals such as toads, frogs, caecilians, and salamanders. They are characterized as non-amniote ectothermic tetrapods... s and reptile Reptile Reptiles are members of a class of air-breathing, ectothermic vertebrates which are characterized by laying shelled eggs , and having skin covered in scales and/or scutes. They are tetrapods, either having four limbs or being descended from four-limbed ancestors... s	amphibian/reptile distributions.
Integrated Botanical Information System (IBIS)	Australia Australia Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area... n plant Plant Plants are living organisms belonging to the kingdom Plantae. Precise definitions of the kingdom vary, but as the term is used here, plants include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The group is also called green plants or... s	Taxonomic information, collection details, photographs
Integrated Taxonomic Information System Integrated Taxonomic Information System The Integrated Taxonomic Information System is a partnership designed to provide consistent and reliable information on the taxonomy of biological species. ITIS was originally formed in 1996 as an interagency group within the U.S...  (ITIS)	all taxa of interest to North America, with other taxa included as available	taxonomic information, including higher taxonomy
NatureServe NatureServe NatureServe is a non-profit conservation organization whose mission is to provide the scientific basis for effective conservation action. NatureServe and its network of natural heritage programs are the leading source for information about rare and endangered species and threatened ecosystems in...	plants, animals, and ecosystems of the United States and Canada	an authoritative source for information on more than 70,000 plants, animals, and ecosystems of the United States and Canada. Explorer includes particularly in-depth coverage for rare and endangered species.
WikiSpecies Wikispecies Wikispecies is a wiki-based online project supported by the Wikimedia Foundation. Its aim is to create a comprehensive free content catalogue of all species and is directed at scientists, rather than at the general public...	All forms of life	Higher taxonomy, synonyms, vernacular names, references
A Pan-European Species-directories Infrastructure (PESI)	European taxa	Authoritative taxonomic checklist of European species, including higher taxonomy, synonyms, vernacular names and European distribution