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Meller's Duck Anas melleri

IUCN Red List Criteria

Critically Endangered  
Endangered A2cd+3cd+4cd;C2a(ii) 
Vulnerable C2a(ii) 

IUCN Red List history

Year Category
2013 Endangered
2012 Endangered
2008 Endangered
2006 Endangered
2004 Endangered
2000 Endangered
1994 Lower Risk/Near Threatened
1988 Lower Risk/Least Concern

Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type shelf island
Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 211,000 medium
Number of locations 11-100 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 1300-3300 medium Estimated 2002
Population trend Decreasing medium -
Number of subpopulations 1 - - -
Largest subpopulation 2000-5000 - - -
Generation length (yrs) 6.6 - - -
Population justification: The population is estimated to number 2,000-5,000 individuals, roughly equating to 1,300-3,300 mature individuals (H. G. Young in litt. 2002).
Trend justification: Randriamahefasoa (2001) states that there are very high hunting levels on Lake Alaotra, an important site. Hunting is intensive and possibly similar to that at Lake Alaotra over much of its range, and the species is very intolerant of human disturbance, so the establishment of agriculture will cause birds to leave a site (H. G. Young in litt. 2012). In light of this report, rapid declines are suspected to be occurring over much of its range.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Madagascar Native Extant       Yes
Mauritius Introduced Possibly Extinct       Yes

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Madagascar Andringitra National Park site factsheet
Madagascar Ankaizina Wetlands site factsheet
Madagascar Bezavona Classified Forest site factsheet
Madagascar Kalambatritra Special Reserve site factsheet
Madagascar Lake Alaotra site factsheet
Madagascar Lake Itasy site factsheet
Madagascar Mahavavy Kinkony Wetland site factsheet
Madagascar North Pangalanes wetlands site factsheet
Madagascar Ranomafana National Park site factsheet
Madagascar Torotorofotsy Wetlands site factsheet
Madagascar Vondrozo Classified Forest and surrounding areas site factsheet
Madagascar Zahamena-Mantadia SAPM site factsheet
Mauritius Relict forests of central plateau site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable resident
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) major resident
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) major resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) major resident
Altitude 0 - 2000 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops / Agro-industry farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops / Shifting agriculture Timing Scope Severity Impact
Ongoing Whole (>90%) Slow, Significant Decline Medium Impact: 7
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals / Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines High Impact: 8
Stresses
Species mortality
Biological resource use Logging & wood harvesting / Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Human intrusions & disturbance Work & other activities Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Stresses
Species disturbance
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Mallard (Anas platyrhynchos) Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Competition
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Small Asian Mongoose (Herpestes javanicus) Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Snakehead Murrel (Channa striata) Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Unspecified rats (Rattus spp.) Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Reduced reproductive success
Pollution Agricultural & forestry effluents / Soil erosion, sedimentation Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Food (human) Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent
Pets Whole Adults and juveniles Wild International Non-trivial Recent
Sport Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Anas melleri. Downloaded from http://www.birdlife.org on 31/08/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 31/08/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Endangered
Family Anatidae (Ducks, Geese, Swans)
Species name author P.L. Sclater, 1865
Population size 1300-3300 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 211,000 km2
Country endemic? Yes
Links to further information
- Summary information on this species