Year of inscription on the World Heritage List 1981
Year(s) of inscription on the List of World Heritage in Danger 1984-1988, 2000-present
Previous Committee Decisions see page https://whc.unesco.org/en/list/25/documents/
Requests approved: 0
Total amount approved: USD 229,607
For details, see page https://whc.unesco.org/en/list/25/assistance/
UNESCO Extra-budgetary Funds
Previous monitoring missions
September 2000: joint World Heritage Centre / IUCN / Ramsar mission; March-April 2001: expert mission
Factors affecting the property identified in previous reports
Illustrative material see page https://whc.unesco.org/en/list/25/
Conservation issues presented to the World Heritage Committee in 2003
The construction of the Diama Dam on the Senegal River led to proliferation of invasive species in the Senegal River’s delta, in particular Salvinia molesta, which was accidentally introduced in 1999, and Typha australis. At the request of the State Party, the Committee at its 24thsession inscribed the site on the List of World Heritage in Danger, approved emergency assistance of US$ 130,000 to tackle the problem of invasive species in the delta and called on other donors to support this action. In November 2002, IUCN Senegal reported on the development of the project established in 2000 between the Park’s scientific committee and the Royal Tropical Institute of the Netherlands. The project included the implementation of mechanical and biological control of Salvinia molesta. Mechanical protective measures (floating barriers, tight-mesh nets) were put in place by the end of 2000. Biological control consisted of the introduction of an insect Cyrtobagus salviniae, the natural enemy to the Salvinia molesta. In a report on the execution of phases 1 and 2 of the emergency assistance programme, dated February 2003, the State Party confirms that the problem of the invasion of Salvinia molesta can be considered as resolved but that there is a need for further monitoring by a special unit so that in the future, rapid intervention measures could be implemented whenever necessary. The State Party also notes that the uncontrolled development of vegetation, the filling up of open waters and the increasing salinity of soils are changing the ecosystem and might threaten in the future the conservation of the site.
IUCN confirms that after the release of Cyrtobagus salviniae in areas bordering the Park and in the whole delta, Salvinia molesta has been reduced to an acceptably low level. Accordingly, it no longer represents a threat to the Park and the delta in general. However, IUCN points out that Typha australis and Eichhornia crassipes are major problems in the site, and require urgent attention and action. IUCN therefore notes that additional information is required about the surface affected by these species and clarification of the actual problems (specifically related to Typha australis) and remarks that in order to control Typha australis, biological control measures might not be adequate, as the potential of these measures needs further exploration and research.
Since the Salvinia problem is under control, the Centre in consultation with the State Party accepted to use the remaining budget under the emergency assistance grant to assist the Site management and the National Direction of National Parks to acquire vehicles and administrative material, which will improve the capacity of the State Party to react more swiftly to emergency situation. Part of the grant is also used to apply some management measures in favour of waterfowl.
The new information provided above has been proposed on a consensual basis between IUCN and the Centre.
Analysis and Conclusions of the World Heritage Centre and IUCN
Decision Adopted: 27 COM 7A.6
The World Heritage Committee,
1. Congratulates the State Party and associated partners for their efforts to control Salvinia molesta in a cost effective manner;
2. Notes that savings made in the project funds are being used for strengthening State Party capacity to protect the property and implement measures benefiting the conservation of waterfowl;
3. Requests the State Party to continue co-operating with IUCN, the World Heritage Centre, the Ramsar Convention Secretariat and other relevant partners in carrying out an urgent assessment of the scale and threat of Typha australis and Eichhornia crassipes to the property and in finding successful control measures to reduce the spread of these species to an acceptable level. The IUCN Invasive Species Specialist Group, which already assisted in the case of Salvinia molesta, would be willing to provide technical support for this work at the request of the State Party;
4. Recommends that the State Party, the World Heritage Centre, IUCN, and the Ramsar Convention Secretariat provide advice by 1 February 2004 for examination by the World Heritage Committee at its 28th session in 2004 on possible benchmarks and timeframes that could facilitate the Committee deliberations on the possible removal of the Djoudj National Bird Sanctuary from the List of World Heritage in Danger;
5. Decides to retain the Djoudj National Bird Sanctuary on the List of World Heritage in Danger.
Decision Adopted: 27 COM 8B.2
The World Heritage Committee,
1. Following examination of state of conservation reports of properties on the List of World Heritage in Danger (WHC-03/27.COM/7A),;
2. Decides to maintain the following properties on the List of World Heritage in Danger: