EN
Madagascar Jacana Actophilornis albinucha



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
- C2a(ii) C2a(i,ii); D1

Red List history
Year Category Criteria
2020 Endangered C2a(ii)
2018 Near Threatened A2cd+3cd+4cd
2016 Near Threatened A2cd+3cd
2012 Near Threatened A2cd+3cd+4cd
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 Does not normally occur in forest
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 415,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 780-1643 poor estimated 2016
Population trend Decreasing inferred -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 20-29 - - -
Decline (10 years/3 generation past and future) 20-29 - - -
Number of subpopulations 1 - - -
Percentage in largest subpopulation 100 - - -
Generation length (yrs) 4.6 - - -

Population justification: The population is estimated to number 975-2,064 individuals, roughly equating to 780-1,643 mature individuals. In 2016, surveys observed 135 jacana, of which 108 were mature, and 27 were juveniles. The jacana were observed at a mean population density of 3.5 ± 0.74 [SE] individuals per hectare (D'Urban Jackson et al., 2019). Genetic analysis by D'Urban Jackson (2018) found no genetic sub-structuring, and as such the jacana are considered to exist in one subpopulation.

Trend justification: The population appears to have become increasingly rare in suitable habitat (P. Morris in litt. 2010, L.-A. Réné de Roland in litt. 2012). It is inferred to be in moderately rapid decline owing to ongoing habitat destruction and degradation within its restricted habitat range, as well as hunting pressure (del Hoyo et al. 1996, P. Morris in litt. 2010, L.-A. Réné de Roland in litt. 2012, G. Young in litt. 2012, D'Urban Jackson et al., 2019).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Madagascar N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Madagascar Coastal area East of Antsiranana
Madagascar Lake Sahaka - Analabe NPA and extension
Madagascar Port-Bergé Wetlands NPA and extension
Madagascar Baly Bay National Park
Madagascar Ankarafantsika National Park and Ampijoroa
Madagascar Cap Saint André forest and wetlands
Madagascar Maevatanana - Ambato-Boeny wetlands
Madagascar Tambohorano Wetland NPA
Madagascar Bemamba Wetland Complex
Madagascar Manambolomaty wetland complex and Tsimembo Classified Forest
Madagascar Menabe forest complex
Madagascar Lake Ihotry - Mangoky Delta Complex NPA
Madagascar Mikea

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Aquatic & Marine Artificial/Aquatic - Ponds (below 8ha) suitable resident
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) suitable resident
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) suitable resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable resident
Wetlands (inland) Seasonal/Intermittent Freshwater Lakes (over 8ha) suitable resident
Wetlands (inland) Seasonal/Intermittent Freshwater Marshes/Pools (under 8ha) suitable resident
Altitude 0 - 750 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Scale Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Fishing & harvesting aquatic resources - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Species mortality
Natural system modifications Dams & water management/use - Abstraction of surface water (unknown use) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Pollution Agricultural & forestry effluents - Soil erosion, sedimentation Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2021) Species factsheet: Actophilornis albinucha. Downloaded from http://www.birdlife.org on 20/10/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 20/10/2021.