Newswise — According to a report released today by the Wildlife Conservation Society (WCS), several species of rare waterbirds from Cambodia's famed Tonle Sap region have staged remarkable comebacks, thanks to a project involving a single team of park rangers to provide 24-hour protection to breeding colonies. The project pioneered a novel approach: employing former hunters and egg collectors to protect and monitor the colonies, thereby guaranteeing the active involvement of local communities in the initiative.
The report shows that some species, which include varieties of storks, pelicans, and ibises, have rebounded 20-fold since 2001, when WCS and the Ministry of Environment of the Royal Government of Cambodia established the conservation project. Before that time, rampant harvesting of both eggs and chicks had driven the colonies to the brink of local extinction.
"This is an amazing success story for the people and wildlife of Cambodia," said Colin Poole, Wildlife Conservation Society director for Asia Programs. "It also shows how important local people are in the conservation of wildlife in their own backyards."
Researchers first discovered the colonies in the mid 1990s in Prek Toal, an area within the massive Tonle Sap—a seasonally flooded wetland critical to Cambodia's people and wildlife. According WCS researchers, the colonies include the largest, and in some cases, the only breeding populations of seven Globally Threatened large waterbird species in Southeast Asia.
Populations of all seven species have increased from a total of 2,500 breeding pairs in 2001 to 10,000 pairs in 2007. The success of the Prek Toal program has contributed to recent proposals for species status revisions, such as the down-listing of the spot-billed pelican based on the bird's observed population recoveries.
Species (IUCN Red List Status) Number of breeding pairs Notes 2001 2004 2007 Asian Openbill 600 (approx.) 959 (611-1,307) 7,682 (6,286-9,078) Complete estimateGreater Adjutant(GT-Endangered) 30 (approx.) 56 (49-63) 77 (65-89) Partial EstimateLesser Adjutant(GT-Vulnerable) 40 (approx.) 158 (127-189) 253 (222-284) Partial EstimateMilky Stork(GT-Vulnerable) unknown 2 10 (6-14) Partial EstimateBlack-headed Ibis(Near-Threatened) 200 (approx.) 1,000 (approx.) Oriental Darter(Near-Threatened) 241 (118-364) 1,125 (819-1,431) 4,053 (3,463-4,643) Complete EstimatePainted Stork(Near-Threatened) 1,000 (approx.) 1,707 (1,523-1,890) 3,121 (2,854-3,388) Complete EstimateSpot-billed Pelican(Near-Threatened) 700 (approx.) 1,117 (977-1,258) 2,592 (2,301-2,883) Complete EstimateGT: Globally Threatened
The Wildlife Conservation Society saves wildlife and wild places worldwide. We do so through science, global conservation, education and the management of the world's largest system of urban wildlife parks, led by the flagship Bronx Zoo. Together these activities change attitudes towards nature and help people imagine wildlife and humans living in harmony. WCS is committed to this mission because it is essential to the integrity of life on Earth. Visit: http://www.wcs.org
Copies of the report and photos available electronically
RSS