CMS
Executive Secretary Robert Hepworth gave evidence to a hearing
on avian influenza at the Parliamentary Assembly of the Council
of Europe in Paris on 27 March. Parliamentarians of the 46
member states of the Council are taking a close interest in
the effects of the lethal H5N1 virus which has spread to Europe
from Asia. The hearing was chaired by M. Daniel Goulet, a
long-serving member of the French Senate.
Mr. Hepworth participated in his capacity as convenor of
the Scientific Task Force on Avian Influenza which comprises
13 UN, treaty and NGO bodies. He traced the history of AI
and demonstrated how the role of migratory birds - although
probably significant in the recent spread to parts of Europe
– has been grossly exaggerated in the media, for example
through misleading maps when in fact there is no real evidence
that AI has spread systematically along major migratory
flyways. Much of the media has remained strangely silent
about the extensive global and local movement of live poultry
products which are crucial in transmitting the virus. Infected
captive birds and human movements provide two other transmission
routes.
Another issue emphasised by the CMS Executive Secretary
was the very slow rate of H5N1 penetration in Africa, despite
its crucial position on North-South flyways, which may be
explained by the reduced levels of intensive poultry farming
in much of the region. Mr Hepworth drew attention to the
dangers of culling wild birds or reducing natural wetland
habitats. Quite apart from the damage to conservation, both
measures would be counter-productive: culling would encourage
potentially diseased birds to scatter and increase human
risks, whilst reducing wetlands would force wild birds to
share areas also used by domestic poultry, again increasing
the risks of spreading AI.
In a further statement, Mr. Hepworth emphasized the need
to intensify research activities: “In order to fight
the epidemic effectively, the virus behaviour in waterbirds
needs to be further investigated. Monitoring the prevalence
of HPAI in wild birds is also necessary. In addition, the
transmission from wild birds to domestic flocks and vice
versa requires further clarification.”
CMS, the Ramsar Convention on Wetlands and AEWA adopted
resolutions on avian influenza during their Conference of
the Parties in late 2005. Solutions include tackling unsustainable
and unhygienic poultry husbandry practices; developing higher
standards and new biosecurity measures; reducing the interface
between wild water fowl and domestic fowl and improved surveillance
of the virus in wild birds, as well as national action plans
and public awareness programmes. “There is an impact
of avian influenza on Europe's biodiversity. A number of
threatened Eurasian migratory birds are at particular risk
from avian influenza. By endorsing these resolutions, more
than 120 governments have supported the agenda developed
by the Scientific Task Force”, concluded Mr. Hepworth.
“We will continue to help the world to understand
and manage the risks associated with Avian influenza, and
ensure that the voice of conservation science is clearly
heard.”
|