Endemic Species of Bolivia

Bolivia’s country endemics are concentrated in several different geographic systems: the humid eastern Andes and Yungas, isolated inter-Andean valleys, high Andean ridges and basins, and the seasonally flooded Beni savannas. Plant, vertebrate and specialist taxonomic datasets use different scopes, so their values are kept separate instead of being combined into an artificial all-taxa total.

Where Bolivian endemism concentrates

Bolivia spans low Amazonian plains, the eastern Andean slope, enclosed valleys, high plateaus and seasonally flooded savannas. The sharpest concentrations of narrow-range terrestrial species are associated with geographic barriers inside that larger landscape.

A regional analysis of the eastern Andes of Peru and Bolivia found different elevational patterns among vertebrate groups. Endemic amphibian richness peaked mainly around 1,000–1,500 m, while the combined vertebrate pattern was strongest around 2,000–3,000 m. The highest modeled overlap in that study, 75–78 endemic vertebrate species in individual grid cells, occurred in Bolivia’s Cochabamba and Tiraque cordilleras. These are regional eastern-Andean results, not a count of species endemic to Bolivia as a country. ^[S3]

Plant endemism and the Important Plant Area network

Kew’s Bolivia project reports 2,661 endemic plant species among 16,000 native wild plant species. It has identified 87 Important Plant Areas covering 406,071 km². Seventy-four of the sites match or overlap protected areas, Key Biodiversity Areas or Ramsar sites to varying degrees, while 13 are reported as lacking any form of legal protection. ^[S1]

Red List coverage is still incomplete. Kew reports an IUCN Red List status for 899 of the 2,661 endemic plants. Using those two values from the same dataset leaves 1,762 endemic plant species outside that published-status subset.

{
  "type": "donut",
  "title": "IUCN status coverage among Bolivia's endemic plants",
  "description": "Kew reports IUCN Red List status for 899 of 2,661 endemic plant species; 1,762 remain outside that published-status subset.",
  "unit": "species",
  "data": [
    {"label": "With IUCN status", "value": 899},
    {"label": "Outside the status subset", "value": 1762}
  ],
  "source": "[S1] Royal Botanic Gardens, Kew"
}

The national plant figure should remain separate from vertebrate figures. It is a species-level botanical estimate from the Bolivia IPA project and cannot be added to IUCN vertebrate tables to manufacture a single total.

Amphibian microendemism in the eastern Andes

IUCN’s country table records 69 amphibian species whose natural distributions are confined to Bolivia. The pattern includes many very small montane ranges, especially in La Paz and Cochabamba.

Microkayla shows this concentration at genus level. Amphibian Species of the World recognizes 25 species in the genus; its current species accounts classify 22 of them as endemic to Bolivia. Many are known from one cordillera, valley system or small set of high-elevation localities. ^[S4]

{
  "type": "donut",
  "title": "Country-endemic status of recognized Microkayla species",
  "description": "Amphibian Species of the World recognizes 25 species in the genus; 22 are classified by their species accounts as endemic to Bolivia.",
  "unit": "species",
  "data": [
    {"label": "Endemic to Bolivia", "value": 22},
    {"label": "Other Microkayla", "value": 3}
  ],
  "source": "[S4] Amphibian Species of the World 6.2"
}

The narrow ranges are biologically different from a single nationwide endemic distribution. Microkayla chacaltaya, for example, is associated with high-elevation localities in the La Paz region, while M. iatamasi is tied to the Carrasco area of Cochabamba. Country endemism can therefore contain another layer of much finer mountain-scale endemism.

Endemic birds in the Beni savannas and dry valleys

Blue-throated Macaw in the Beni savannas

The Blue-throated Macaw (Ara glaucogularis) is native only to Bolivia’s Beni savannas. BirdLife treats it as Critically Endangered and describes three small subpopulations in a landscape that can remain flooded for much of the year. Its range depends on the relationship between open savanna, palms and elevated forest islands. ^[S5]

BirdLife’s 2023 account cited an official wild-population estimate of 455 birds. The same account reports that a nest-box programme begun in 2005 had expanded to more than 100 boxes installed or maintained annually and had helped 113 young macaws fledge over a 15-year period. Those figures describe the conservation programme reported in that account rather than a new population estimate.

Red-fronted Macaw in the inter-Andean valleys

The Red-fronted Macaw (Ara rubrogenys) occupies a small section of south-central Bolivia’s eastern Andean valleys, including parts of the Río Grande, Mizque, Caine and Pilcomayo systems. BirdLife classifies it as Critically Endangered and gives an estimated 134–272 mature individuals with a declining trend. ^[S6]

The two macaws illustrate separate routes to country endemism. One is tied to a lowland flooded savanna system; the other follows dry Andean valleys isolated by mountain terrain.

Mammal endemism under changing inventories

A national mammal checklist published in 2019 recognized 406 native mammal species and treated 25 as endemic to Bolivia. Twenty of those 25 were rodents, including two then-undescribed species; six endemic species in that treatment belonged to Ctenomys. ^[S7]

That figure is a historical checklist treatment, not a current fixed total. The Mammal Diversity Database now lists 420 living mammal species for Bolivia and 13 resident Ctenomys species. ^[S8] Changes in accepted species, newly described taxa and revised distributions prevent the 2019 endemic count from being transferred unchanged into the current inventory.

The older checklist nevertheless reveals a persistent pattern: much of Bolivia’s documented mammal endemism is concentrated among small mammals, especially rodents with limited Andean or valley distributions, rather than among the country’s better-known large mammals.

Recent taxonomy can change the endemic list

Leopardus tilcayo in the Bolivian Yungas

Leopardus tilcayo was described as a distinct tiger-cat species in 2026 during a phylogenomic revision of South American tiger cats. The type material and confirmed records used in the description come from the Bolivian Yungas. ^[S9]

Cliff Parakeet became a country endemic after a species split

The 2025 Clements update elevated Myiopsitta luchsi from the Monk Parakeet complex to species rank as the Cliff Parakeet and explicitly recorded the result as a new endemic species for Bolivia. The split was supported by breeding behavior, plumage, vocal and genetic evidence and was accepted by SACC and AviList. ^[S10]

This is a direct example of a country-endemic count changing because taxonomic rank changed. The birds did not acquire a new geographic range; the scientific treatment of that range changed.

Reptile endemism in mountains and dry valleys

The Reptile Database’s current Bolivia search returns 327 reptile species recorded from the country. That value is a country inventory, not an endemic-species total. ^[S11]

Country-only distributions occur in several unrelated reptile lineages. Examples include the amphisbaenian Amphisbaena cegei, high-Andean and montane Liolaemus, the dry-country snake Clelia langeri, and localized pit vipers. Their ranges are better represented individually than by treating all Bolivian reptiles as one biogeographic unit.

Country-endemic, near-endemic and lake-endemic are different

Lake Titicaca is a useful boundary case because the lake is shared by Bolivia and Peru. A species naturally confined to Lake Titicaca can be endemic to the lake while failing the definition of a Bolivia-endemic species if its native distribution occurs on both sides of the international border.

Introduced, naturalized, captive, cultivated or conservation-translocated records do not expand a species’ original native range for endemic-status purposes.

Verified endemic species checklist

Data boundaries that change Bolivia’s counts

• Native range controls country endemism. Introduced or naturalized populations do not alter the original endemic range.
• Species rank is kept separate from subspecies and other infraspecific taxa. A newly elevated species such as Myiopsitta luchsi can change a species-level national count.
• Taxonomic revisions can alter totals without a geographic change. Newly described or split species may expose country-level endemism that was previously hidden within a wider taxon.
• Different datasets are not summed. Kew’s plant dataset, IUCN’s assessed vertebrate tables and specialist taxonomic databases have different coverage and update cycles.
• A restricted range is not automatically a national endemic range. Transboundary Andean systems and Lake Titicaca require the natural distribution to be checked on both sides of Bolivia’s borders.
• Occurrence records alone are insufficient. A lack of records outside Bolivia does not prove absence; country-endemic classification requires an accepted distribution treatment.