Endemic Species of Colombia

Colombia’s endemic biota is documented through several national and specialist datasets rather than one permanently fixed checklist. A 2025 SiB Colombia synthesis reported 8,537 endemic species, while newer or differently scoped taxonomic lists already produce different counts for birds and mammals. Those figures are kept in their original dataset contexts below.

{
  "type": "bar",
  "title": "Endemic species counts reported in the national synthesis",
  "description": "Source-defined counts for seven named groups reported together by SiB Colombia. The groups do not exhaust the 8,537-species total.",
  "unit": "species",
  "orientation": "horizontal",
  "data": [
    {"label": "Plants and lichens", "value": 6212},
    {"label": "Beetles", "value": 936},
    {"label": "Freshwater fishes", "value": 429},
    {"label": "Amphibians", "value": 419},
    {"label": "Butterflies", "value": 219},
    {"label": "Birds", "value": 84},
    {"label": "Mammals", "value": 63}
  ],
  "source": "[S1] SiB Colombia biodiversity figures 2025",
  "ariaDescription": "Horizontal bar chart comparing source-defined Colombian endemic species counts for plants and lichens, beetles, freshwater fishes, amphibians, butterflies, birds, and mammals."
}

Where Colombian endemism is concentrated

Colombia’s national borders cut across several very different biological systems. Endemic ranges cluster in isolated mountains, high-elevation habitat islands, offshore islands, dry-forest remnants and freshwater networks. The Andes are especially fragmented within Colombia because the cordillera divides into western, central and eastern ranges separated by major valleys. That topography repeatedly limits contact among upland populations.

The mountain pattern is visible within the bird reassessment itself. At high elevations, the authors recorded additions in the Western, Central and Eastern cordilleras, while medium-elevation endemic and near-endemic changes were also concentrated along particular Andean slopes. The regional figures in that study overlap because one bird can occupy more than one elevation band or region, so they cannot be summed into a new national total. ^[S3]

Bird endemism and the 84–87 count difference

Two source-defined bird counts are useful for Colombia, but they answer slightly different dataset questions. The 2025 SiB national synthesis reports 84 endemic birds. A specialist reassessment published in 2024, using SACC 2023 taxonomy and evaluating 1,966 Colombian bird species, recognized 87 endemic species, 202 near-endemics, 17 species of interest and 17 species with insufficient information. ^{[S1] [S3]}

The 11 additions and three removals behind the bird revision

The specialist reassessment did not change the endemic total through one mechanism. New species descriptions, taxonomic splits, revised specimen identifications and cross-border range evidence all altered the list. The complete set of endemic-category additions and removals reported against the 2013 list is shown here. ^[S3]

The last three rows show why a national endemic list can shrink without a population disappearing. One former “species” became a hybrid taxon, another was treated at subspecies rank, and a third gained verified range evidence in a neighboring country. Conversely, several additions arose from splits or newly described species rather than newly discovered national borders.

What the endemic-bird atlas adds

The Humboldt endemic-bird atlas provides a different layer: mapped distributions. Its dataset describes maps for 83 Colombian-endemic bird species, including the historical distribution of extinct Podiceps andinus. Expert-reviewed potential distributions were modeled for 79 species. The atlas explicitly says that Grallaria alvarezi, Grallaria spatiator and Chloropipo flavicapilla were not included in that edition because they entered the endemic treatment too late for the modeling workflow; Chlorostilbon olivaresi was also not modeled because available information was too sparse. ^[S4]

This makes the atlas useful for spatial patterns without making its 79 modeled species a replacement for the 87-species specialist classification. A mapped dataset and a taxonomic-status list can legitimately contain different numbers when their inclusion dates and purposes differ.

The current mammal checklist: 64 endemics

The April 2025 national mammal checklist recognizes 553 species in 13 orders, 50 families and 220 genera. Of those, 64 are endemic. The same dataset breaks the endemic set into six order-level groups, allowing a direct composition comparison. It also excludes four still-undescribed mammal entities from the species count until they are formally described. ^[S2]

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  "type": "bar",
  "title": "Endemic mammals by group",
  "description": "Composition of the 64 endemic mammal species in the April 2025 Colombian mammal checklist.",
  "unit": "species",
  "orientation": "horizontal",
  "data": [
    {"label": "Rodents", "value": 31},
    {"label": "Primates", "value": 9},
    {"label": "Bats", "value": 9},
    {"label": "Shrews", "value": 7},
    {"label": "Lagomorphs", "value": 5},
    {"label": "Opossums", "value": 3}
  ],
  "source": "[S2] Sociedad Colombiana de Mastozoología / SiB Colombia",
  "ariaDescription": "Horizontal bar chart showing 31 endemic rodents, 9 primates, 9 bats, 7 shrews, 5 lagomorphs and 3 opossums in the 2025 Colombian mammal checklist."
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The 64-species value is one higher than the 63 mammals carried by the national biodiversity synthesis. The checklist itself also records recent taxonomic adjustments, including the use of Casiomys alfaroi, replacement of Coendou quichua by Coendou vossi, addition of Coendou rothschildi, treatment of Leopardus pardinoides, and the split of nine-banded armadillo material between Dasypus fenestratus and Dasypus novemcinctus across different Colombian regions. ^[S2]

High-mountain plant endemism

The national synthesis groups plants and lichens together at 6,212 endemic species. A separate Humboldt dataset resolves one narrower ecological subset: vascular plants considered endemic to Colombian páramos and high mountains. Its latest published dataset version contains 322 species represented by 3,238 specimen records. ^{[S1] [S6]}

Asteraceae, Melastomataceae, Plantaginaceae and Ericaceae are the best-represented families in that dataset. The most represented genera include Diplostephium, Espeletia, Pentacalia, Aragoa and Miconia. ^[S6]

These record counts measure representation in the specimen dataset, not population size or national abundance. The collection dates in the resource span 1918–2017 even though the dataset itself has a newer publication version, so the 3,238 records should not be read as a current field census. ^[S6]

A separate tree and shrub assessment

A national assessment of endemic trees and shrubs treated 1,254 species, of which 566 were placed in threatened Red List categories in that assessment, equal to 45%. This is a defined woody-plant assessment and should not be added to the 6,212 plants-and-lichens figure as though the datasets were separate, non-overlapping inventories. ^[S9]

The assessment also documents sharply restricted examples. Cavanillesia chicamochae is a Colombian-endemic tree with known populations in the Chicamocha River Canyon in Santander on the Cordillera Oriental. Aphelandra taborensis is a Colombian-endemic shrub known from a single locality in the municipality of Trujillo, Valle del Cauca. ^[S9]

Freshwater fishes, amphibians and invertebrate counts

Several of Colombia’s largest source-defined endemic totals are outside birds and mammals. SiB’s national synthesis reports the following groups together, which makes their counts directly traceable to one publication even though they do not form an exhaustive partition of all 8,537 endemics. ^[S1]

Freshwater endemism needs especially careful range interpretation. Colombia contains portions of river systems that continue into neighboring countries, so a fish recorded only from Colombian databases is not automatically endemic. Natural watershed distribution has to be established independently of gaps in occurrence records. The 429 figure is therefore best retained as the national synthesis value rather than reconstructed from occurrence points.

Species rank, island forms and native range

Gorgona shows why rank control matters. Colombia’s national parks authority identifies Anolis gorgonae as an endemic terrestrial species. The same park account also lists island forms such as Bradypus variegatus gorgonae, Thamnophilus punctatus gorgonae and Cyanerpes cyaneus gigas; the last is explicitly identified there as an endemic subspecies. Those infraspecific names should not be counted as additional species in a species-rank national endemic total. ^[S7]

Range evidence can change status without changing rank. Mesoclemmys dahli remains a species-level Colombian endemic, but its documented range expanded well beyond the original type-locality area as populations were confirmed across several northern departments. The specialist account still restricts its natural distribution to Colombia. ^[S8]

Verified species-rank reference records

Why Colombia’s endemic counts change

The bird and mammal datasets show several routes by which a national endemic count can move. A taxonomic split can turn one widespread complex into multiple narrower species. A synonym or rank change can remove a former species from a species-level count. A newly verified record across a border can convert an endemic into a near-endemic. A specimen reidentification can have the opposite effect. Newly described species can enter a checklist only after formal publication.

A changed count therefore does not automatically mean that a species expanded or contracted its biological range. The change may exist entirely in taxonomy, rank, identification or evidence coverage. For Colombia, retaining the source treatment beside each number is necessary because the country’s endemic totals are being revised at different speeds across taxonomic groups.