White-bellied Mountain-gem (Lampornis hemileucus) | Details

White-bellied Mountain-gem Lampornis hemileucus

Current view: Data table and detailed info

Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2022	Least Concern
2016	Least Concern
2012	Least Concern
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

Species attributes

Migratory status	altitudinal migrant	Forest dependency	high
Land-mass type		Average mass	-

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	22,000 km²	medium
Area of Occupancy (breeding/resident)	9,468 km²
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	20000-49999 mature individuals	poor	suspected	2020
Population trend	stable	-	suspected	-
Generation length	2.37 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The global population is estimated to number fewer than 50,000 mature individuals (Partners in Flight 2020); therefore it is here tentatively placed in the band 20,000-49,999 mature individuals. The species is described as 'fairly common' (Stotz et al. 1996). Based on observational records (per eBird 2021), the species likely forms at least two subpopulations.

Trend justification: Tree cover loss within the range is minimal (c.1% over ten years; Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein); large tracts of suitable habitat remain intact or under protection (Stiles and Boesman 2020). The species is therefore tentatively assessed as stable.

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Costa Rica	extant	native	yes
Panama	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Costa Rica	Arenal-Monteverde
Costa Rica	Central Volcanic Cordillera
Costa Rica	La Amistad Caribe
Costa Rica	Los Santos, La Amistad Pacífico
Costa Rica	Talamanca Highlands
Panama	Fortuna Forest Reserve
Panama	Palo Seco Protection Forest

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Forest	Subtropical/Tropical Moist Montane	major	resident
Shrubland	Subtropical/Tropical Moist	suitable	resident
Altitude	400 - 1400 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: White-bellied Mountain-gem Lampornis hemileucus. Downloaded from https://datazone.birdlife.org/species/factsheet/white-bellied-mountain-gem-lampornis-hemileucus on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/12/2024.