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Only Lesser flamingo breeding site in East Africa thrown a lifeline

23/02/2007 00:00:00
A lifeline has been thrown to the one million lesser flamingos of Tanzania’s Lake Natron, threatened by huge industrial development on their most important breeding site in the world.

The plan to build a soda ash plant on the lake, in northern Tanzania in the Great Rift Valley, has been thrown out for now and the developers, Lake Natron Resources, have been ordered to produce a new and better environmental statement and consider other sites for soda ash extraction. The firm is jointly owned by the Indian company TATA Chemicals and the Tanzanian Government.
 

Lesser Flamingos

  • The lesser flamingo, Phoeniconaias minor, stands between four and five feet high but is the smallest of the six flamingo species. With the greater flamingo, it is one of two Old World flamingo species. The clearest difference between the two species is that the greater flamingo has a pale pink bill with a contrasting black tip while the lesser flamingo has a dark crimson bill. The lesser flamingo is also shorter and redder in colour.
  • The species has long pink legs and a long neck. Its large body is rose-pink, the colour coming from pigments in its food, the bacteria Spirulina. The birds eat by holding their bills upside down in the water. Flamingo bills are shaped to filter tiny food items within the bill using a specially adapted tongue.
  • Spirulina are cyanobacteria, commonly known as blue-green algae, although in fact they are prokaryotes, not algae, and are actually bacteria. Spirulina sometimes gives Lake Natron a pink or red colour. It grows only in salty lakes.
Lesser flamingo portrait. © Graham McCulloch.
 
Graham Wynne, Chief Executive of the RSPB, which is campaigning vigorously against the development, said: ‘The soda ash proposal is just plain wrong and the decision today is a major victory for conservation and for common sense.

‘The birds are not safe yet but the developers have been sent back to square one and set questions we do not think they can answer. Places like Lake Natron belong to the people and wildlife of Africa not to multinationals to exploit for their own short-term gain.’
Groups reporting to Tanzania’s environment ministry called time early on today’s meeting to assess the developer’s obligatory environmental assessment for the soda ash plant.

Of the 14 bodies present, including conservation groups, national parks and the EU, representing donors, most said the development should be rejected because of the risk of driving away the flamingos, harming other species and irreversibly damaging Lake Natron, which is protected by international law.

There are between 1.5 and 2.5 million lesser flamingos in East Africa – three-quarters of the world’s population - and it is likely that every one of them hatched at Lake Natron.

The area has been East Africa’s only breeding site for the birds for 45 years because development at other lakes has forced lesser flamingos away. Lake Natron’s isolation safeguards the birds from predators and its food-rich waters, and the freshwater close by, create ideal breeding conditions.
 
Lesser flamingos. © Thomas Daleke.
Lesser flamingos are highly vulnerable to disturbance and conservationists are convinced that the plant’s coal-fired power station, road and rail links, housing, cables and noise would stop the birds breeding.

The plant could also cause major water shortages for nomads in the area – it would devour 100,000 litres of freshwater and 550,000 litres of brine or saltwater every hour.

Dr Dieter Hoffmann, the RSPB’s Head of Global Programmes, was the first to hear of today’s ruling. He said: ‘This is very, very good news. The flamingos are not safe yet but this is a major step towards them being so.

‘Lake Natron is the most important place in the world for these birds and a huge asset to Tanzania and should never have been earmarked for development. We will continue our fight against the development until we know it is scrapped.’
 

Flamingo facts

  • Flamingos live until they are about 40 years old but only breed every five or six years. Non-breeding birds do not return to breeding sites until they are ready to breed again.
  • The bird lays one chalky white egg on mounds built of mud. Chicks join creches soon after hatching which can number more than 100,000 birds. The creches are marshalled by adult birds which lead youngsters by foot to fresh water to drink, a journey that can be longer than 20 miles.
  • There are thought to be between 2.2 million and 3.25m lesser flamingos in the world of which between 1.5m and 2.5m are found in East Africa. Lack of breeding at Lake Natron will reduce the region’s population.
  • Vagrant birds are occasionally seen in southern Europe.
Wildlife Conservation Society of Tanzania
Lota Melamari, Chief Executive of the Wildlife Conservation Society of Tanzania, is attending the workshop. He said: ‘Whatever the decision, the survival of the lesser flamingo must not be jeopardised. The opportunity to see so many of these colourful birds together on one site is one of Africa’s most popular tourist attractions.’

Lake Natron is one of only five breeding sites for lesser flamingos in the world but if it is damaged, there is no evidence that the birds will breed successfully elsewhere.

Dr Magin said: ‘This could be the beginning of the end for the lesser flamingo. Millions of people have enjoyed the spectacle of flocks of flamingos in Tanzania and Kenya and all of that is now in jeopardy.

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