Whitehead's Spiderhunter (Arachnothera juliae)

Whitehead's Spiderhunter Arachnothera juliae

Current view: Data table and detailed info

Taxonomy

Taxonomic note

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
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	not a migrant	Forest dependency	medium
Land-mass type		Average mass	-

Distribution

	Estimate	Data quality
Extent of Occurrence breeding/resident (km²)	86,500
Severely fragmented?	no	-

Population and trend

	Value	Data quality	Derivation	Year of estimate
Number of mature individuals	unknown	not applicable	not applicable	0
Population trend	decreasing		suspected	-
Generation length (years)	4.2	-	-	-

Population justification: The global population size has not been quantified, but the species is reported to be locally common (Cheke et al. 2001).

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction.

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding	Non-breeding	Passage
Indonesia	extant	native	yes
Malaysia	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Indonesia	Betung Kerihun
Malaysia	Crocker Range
Malaysia	Mount Kinabalu
Malaysia	Trus Madi Range
Malaysia	Hose-Laga mountains
Malaysia	Baleh headwaters
Malaysia	Danum-Linau
Malaysia	Usun Apau plateau
Malaysia	Dulit Range
Malaysia	Mulu - Buda Protected Area
Malaysia	Kelabit Highlands
Indonesia	Kayan Mentarang
Malaysia	Lanjak Entimau Wildlife Sanctuary

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude		Occasional altitudinal limits

Recommended citation
BirdLife International (2023) Species factsheet: Arachnothera juliae. Downloaded from http://datazone.birdlife.org/species/factsheet/whiteheads-spiderhunter-arachnothera-juliae on 27/09/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 27/09/2023.