Population information

Order name Pelicaniformes
Family name Pelecanidae
Scientific name Pelecanus philippensis Common name Spot-billed Pelican
Population name SE Asia
Breeding range Cambodia Non-breeding range Cambodia, Laos, Vietnam, Thailand; Extinct S China
Red List Category Near Threatened
Ramsar regions Asia
Notes

Conservation Framework

Conservation framework Notes
EAAF Partnership
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 1987 1991 1,500 1,500 No quality assessment [R519]
WPE 2 1987 1991 1,500 1,500 No quality assessment [R519]
WPE 3 2000 2000 3,000 5,000 No quality assessment [R65]
WPE 4 0 0 4,000 5,000 No quality assessment [S4493] [R20]
WPE 5 0 0 4,000 5,000 No quality assessment [S6515] [R20]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1977 1991 DEC No quality assessment [R519]
WPE 2 1977 1991 DEC No quality assessment [R519]
WPE 3 1990 2000 DEC No quality assessment [R65]
WPE 4 1995 2005 DEC No quality assessment [R67]
WPE 5 1995 2005 DEC No quality assessment [R67]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 15
WPE 2 1994 15
WPE 3 2002 40
WPE 4 2006 45
WPE 5 2006 45

References

  • R519 - Perennou, C.P., Mundkur, T. and Scott, D.A. 1994. The Asian Waterfowl Census 1987-1991: distribution and status of Asian waterfowl. IWRB Spec. Publ. No. 24; AWB Spec. Publ. No. 86. Slimbridge, UK and Kuala Lumpur, Malaysia.
  • R65 - BirdLife International 2001. Threatened Bird of Asia: the BirdLife International Red Data Book. Cambridge, UK. BirdLife International
  • R20 - Asian Waterbird Census unpublished data. 2002.
  • R67 - BirdLife International Website 2006
  • R1955 - BirdLife International 2021 website
  • R1960 - Zöckler, C., Lwin, N. Tun, T.Z, Pfützke, S., Momberg, F., Van Der Ven, F. & Delany, S. (2020) Surveys of riverine birds along the Ayeyarwady River in 2017−2019 and conservation implications. Forktail. 36: 1–15.
  • R1961 - Sun Visal and Mahood, S. (2015) Wildlife Monitoring at Prek Toal Ramsar Site, Tonle Sap Great Lake, 2013 and 2014. Wildlife Conservation Society, Cambodia Program, Phnom Penh.
  • R1851 - Langendoen, T, Mundkur, T. & Nagy, S., (2021) Flyway trend analyses based on data from the Asian Waterbird Census from the period of 1987-2020. Online publication. Wetlands International, Wageningen, The Netherlands.

Notes

  • S4493 - AWC 2002: 3,747 counted in Cambodia 2005; BirdLife International (2001) estimated 3,000-5,000 in SE Asia.
  • S6515 - AWC 2002: 3,747 counted in Cambodia 2005; BirdLife International (2001) estimated 3,000-5,000 in SE Asia.
  • S9789 - The population estimate is based on nest counts at the main known colonies in KH (Visal & Mahood, 2015). In 2014, 1803 nests were recorded, with a confidence interval of 1,660-1,946. As these are the last known colonies in SE Asia, this is used to generate the current population estimate of 5,000 - 5,800 individuals. IWC counts were between 1,402-3,899 individuals (2016-2020) mainly in KH, the current stronghold of the species. In TH may be increasing (BirdLife International (2021) quoting Phil Round); while the population in MM has declined and may have disappeared from parts of its range (Zöckler et al 2019).
  • T7763 - The IWC analysis reports an increasing trend for 2011-2020 (1.1016) and stable over 1999-2020 (1.0216).



Copyright Wetlands International 2012

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