Population information

Order name Anseriformes
Family name Anatidae
Scientific name Marmaronetta angustirostris Common name Marbled Teal
Population name West Mediterranean/West Medit. & West Africa
Breeding range W Mediterranean Non-breeding range W Mediterranean, W Africa
Red List Category Vulnerable
Ramsar regions Africa Europe
Notes

Conservation Framework

Conservation framework Notes
AEWA
EUBD
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 2,000 2,000 [R269]
WPE 2 0 0 3,000 3,000 [R269]
WPE 3 2001 2001 3,000 5,000 [R190]
WPE 4 2001 2001 3,000 5,000 [R190]
WPE 5 2001 2001 3,000 5,000 Expert opinion [R190]
CSR 4 2001 2001 3,000 5,000 Expert opinion [R190]
CSR 5 2001 2001 3,000 5,000 Expert opinion [R190]
CSR 6 2000 2013 6,000 7,500 Expert opinion [S8540] [R1362] [R1365] [R1371]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1900 1990 DEC [R269]
WPE 2 1900 1990 DEC [R269]
WPE 3 1991 2001 FLU [R272]
WPE 4 1991 2001 FLU [R272]
WPE 5 1991 2001 FLU Reasonable [R272]
CSR 4 1991 2001 FLU Reasonable [R272]
CSR 5 1991 2001 FLU Reasonable [R272]
CSR 6 2003 2012 UNC Poor [T6535] [R1362] [R1381]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 20
WPE 2 1997 30
WPE 3 2002 40
WPE 4 2006 40
WPE 5 2012 40
CSR 4 0 -1
CSR 5 0 -1
CSR 6 0 -1

References

  • R269 - Green, A.J. 1993. The status and conservation of the Marbled Teal (Marmaronetta angustirostris). IWRB Special Publication No. 23. Slimbridge, UK. 107 pp.
  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R272 - Green, A.J. in litt. 2002.
  • R1362 - European Topic Centre on Biological Diversity (in prep) Population and trend data provided by the EU Member States in the frame of their reporting under Article 12 of the EU Birds Directive. Online fact sheets. European Topic Centre on Biological Diversity, Paris. URL: http://bd.eionet.europa.eu/activities/Reporting/Article_12/Reports_2013/Member_State_Deliveries. Accessed on 31 July 2014.
  • R1365 - Wetlands International, International Waterbird Census, unpublished data, 2014.
  • R1371 - Dodman, T. 2014. Status, Estimates and Trends of Waterbird Populations in Africa: AEWA-listed African populations. Wetlands International. (CSR6 African populations) URL: https://www.wetlands.org/publications/1304/
  • R1381 - Nagy, S., Flink, S., Langendoen, T. (2014) Waterbird trends 1988-2012: Results of trend analyses of data from the International Waterbird Census in the African-Eurasian Flyway. Wetlands International, Ede.
  • R1548 - Wetlands International (2017) Flyway trend analyses based on data from the African-Eurasian Waterbird Census from the period of 1967-2015. Ede, The Netherlands: Wetlands International. Temporary URL: https://www.dropbox.com/sh/r76f4eyuhzu65co/AADzzQkhySsUDsmwFJUcHs91a?dl=0

Notes

  • S8540 - 57-59 pairs in the EU (European Topic Centre on Biological Diversity, in prep., BirdLife International et al., in prep.). Highest IWC count total in the West Mediterranean was 6,089 individuals in January 2013 (Wetlands International, 2014). There are records from several sites in Chad, including 525 recently in NE, and this year 'a dozen seen but others likely missed' in central Chad. W Africa few records, maybe 100 individuals, but could easily be underlooked eg in Mali. Based on 2013 data & Chad (Dodman, 2014).
  • T6535 - Breeding numbers are declining in ES, fluctuating on ESIC and stable in IT (European Topic Centre on Biological Diversity), but wintering trend is uncertain (Nagy et al., 2014). It is unclear whether the fluctuations in numbers counted are related to coverage or to environmental factors although the magnitude of year-to-year changes exclude genuine biological/environmental processes.
  • T6944 - Long-term (1983-2015): 1.0086 (SE 0.0156) – uncertain (TRIM: stable)



Copyright Wetlands International 2012

Citation: Wetlands International (). "Waterbird Population Estimates" . Retrieved from wpe.wetlands.org on