West Mamoré River (23873)
Bolivia, South America

Site overview

KBA status: confirmed

Global KBA criteria: A1b, A1d

Year of last assessment: 2023

National site name: Oeste del Río Mamoré

Central coordinates: Latitude: -13.7999, Longitude: -65.9016

System: terrestrial

Elevation (m): 106 to 187

Area of KBA (km²): 14871.71006

Protected area coverage (%): 7.75

KBA classification: Global

Legacy site: Yes

Site details

Site description: The KBA contains 5 distinctive habitats: savanna, treed savanna (cerrado), forest islands, gallery forests and marsh wetlands, this region has eight months of flooding -from November to July- followed by four months of extreme drought -from July to November. About seventeen species of macaws, in addition to Ara glaucogularis, inhabit the reserve. Calidris subruficollis (categorized as near threatened) and other shorebirds (Calidris melanotos, Bartramia longicauda and Pluvialis dominica) stop in this area on their southbound migration to feed; however, during the northbound migration season the area is in its flood stage, so they continue their journey to the plains of Colombia and Venezuela. Other birds, among the 320 species that are sighted in the area, include

Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance that meets the thresholds for at least one criterion described in the Global Standard for the Identification of KBAs. Trigger species: Alectrurus tricolor A1d; Coryphaspiza melanotis A1d; Culicivora caudacuta A1d; Ara glaucogularis A1a, A1c, B1.

Additional biodiversity: This site receive yearly several migrant birds species, although their numbers do not reach the minimun to trigger the Criteria D, they are: Actitis macularius, Bartramia longicauda, Calidris fuscicollis, Calidris himantopus, Calidris melanotos, Calidris minutilla, Calidris subruficollis, Charadrius collaris, Charadrius semipalmatus, Gallinago paraguaiae, Himantopus mexicanus, Phalaropus tricolor, Pluvialis dominica, Tringa flavipes, Tringa melanoleuca, Tringa solitaria, Vanellus cayanus, Vanellus chilensis. Oher species of conservation concern are present in the KBA, though there are no current information about theri reproductive popualtions: Pteronura brasiliensis, Blastocerus dichotomus, Inia geoffrensis, Priodontes maximus, Tayassu pecari, Tapirus terrestris, Myrmecophag tridactyla, and Cebus unicolor.

Manageability of the site: The KBA does not have any current form of management. However, due to the interest of the Departmental Government on KBAs it is possible in the future to foster its conservation and management. Mevertheless, Asociación Armonía is working with cattle ranchers' associations to promote sustainable or environmentally responsible management practices and the conservation of local bird species, particularly the blue-bearded parrot and migratory birds. A workshop was recently held with ranchers and other stakeholders in the area precisely to link these practices and collaborate with biodiversity conservation.

Delineation rationale: The delimitation of the KBA, the limits were considered to the west following the municipal boundary with the Municipality of Santa Rosa, to the north it limits with the KBA Lagos de Exaltación (100314), to the east the Mamoré River and upstream the Apere River.

Habitats

IUCN Habitat	Coverage %	Habitat detail
Forest	20	Forest – Subtropical/tropical moist lowland
Savanna	90	Savanna - Moist

Threats

Threat level 1	Threat level 2	Threat level 3	Timing
Agriculture & aquaculture	Livestock farming & ranching	Agro-industry grazing, ranching or farming
Agriculture & aquaculture	Livestock farming & ranching	Small-holder grazing, ranching or farming	Ongoing
Natural system modifications	Fire & fire suppression	Increase in fire frequency/intensity	Ongoing

Additional information