Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Ardea purpurea Common name Purple Heron
Population name manilensis, E & SE Asia
Breeding range E & SE Asia, Ryukyu Is (Japan) Non-breeding range Birds breeding in N China migrate south in winter, when range includes Taiwan
Red List Category Least Concern
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 10,000 100,000 No quality assessment [R519]
WPE 2 1987 1991 10,000 100,000 No quality assessment [R519]
WPE 3 1987 1991 10,000 100,000 No quality assessment [R519]
WPE 4 1987 1991 10,000 100,000 No quality assessment [R519]
WPE 5 1987 1991 10,000 100,000 Best guess [R519]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1977 1991 DEC No quality assessment [R519]
WPE 2 0 0 Unknown No quality assessment
WPE 3 0 0 Unknown No quality assessment
WPE 4 0 0 Unknown No quality assessment
WPE 5 0 0 Unknown No idea

Population 1% level

Publication Yearset 1 percent Note
WPE 1 -1 -1 Not Set
WPE 2 -1 -1 Not Set
WPE 3 2002 1000
WPE 4 2006 1000
WPE 5 2012 1000

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.
  • 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

  • T7761 - The IWC analysis reports an uncertain trend falling in the stable range for 2011-2020 (1.0291), over 3 generations 2002-2020 (1.0116) and an increasing trend for 2000-2020 (1.0244). Low reported numbers from the AWC suggest only a small proportion of the population is monitored.



Copyright Wetlands International 2012

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