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tigres menacés
 
News archive
Published on : 2028-09-07
September 14th : china offers to other asean countries to make a particular effort and take strong initiatives to fight poaching and traffic   Read more

Published on : 2024-03-08
24 december 2007: thaï forests can home 2000 tigers   Read more

Published on : 2024-03-08
31 january: strong indian plan to save tigers. will it be enough?   Read more

Published on : 2024-03-08
13 february 2008: associating forest people rather than excluding them   Read more

Published on : 2024-03-08
14 february 2008: 8000kms long corridor for tigers   Read more

Published on : 2024-03-08
19 february 2008: indian tigers: 800, 1400, 2000?   Read more

Published on : 2024-03-08
17 february: in front of death. soon no more subspecies in tigers   Read more

Published on : 2020-11-07
2008: india come back?   Read more

Published on : 2020-11-07
2008: india come back?   Read more

Published on : 2020-11-07
A marvellous instance of harmony building   Read more

Published on : 2012-11-07
Tigers rediscovered in india   Read more

Published on : 2012-11-07
Amur tiger festival   Read more

Published on : 2012-11-07
New indian elements and thapar despair   Read more

Published on : 2012-11-07
Indians want to believe that it is still possible to save wild tigers   Read more

Published on : 2012-11-07
"cautious optimism"of americans about siberian tigers...against evidency   Read more

Published on : 2012-11-07
Indonesians hide diversity richness to destroy forests without any opposition   Read more

Published on : 2011-11-07
Europa in the heart of tiger trade   Read more

Published on : 2008-12-07
New threats and reactions   Read more

Published on : 2008-12-07
A decisive victory for rewilding process   Read more

Published on : 2008-07-27
Tremendous frozen chambers   Read more

Published on : 2007-09-05
Galhano alves exposition   Read more

Published on : 2007-09-03
Tigers in freezer   Read more

Published on : 2007-08-30
Decisions of indian government   Read more

Published on : 2007-08-29
Sunderbans under water*-   Read more

Published on : 2007-08-27
Li quan against mafia tigers protection   Read more

Published on : 2007-08-21
Empty panna !   Read more

Published on : 2007-08-17
Russian custom officers confiscated hundreds of bear paws   Read more

Published on : 2007-08-15
Tigers: new formula to secure future instead of fruitless trade controversy   Read more

Published on : 2007-08-09
Armand farraci is published in the french version of « the ecologist »   Read more

Published on : 2007-08-04
An open letter of nirmal ghosh to barun mitra   Read more

Published on : 2007-08-03
Less than 1500 tigers in india   Read more

Published on : 2007-07-30
More on tiger trade controversy   Read more

Published on : 2007-07-27
Thibetan festival goers ordered to wear fur   Read more

Published on : 2007-07-22
Death of shiv kumar patel   Read more

Published on : 2007-07-16
Come back from cambodia of véronique audibert   Read more

Published on : 2007-07-14
Rewilding captive tigers   Read more

Published on : 2007-07-08
Wang wei hopes a lifting of the trade ban.   Read more

Published on : 2007-07-01
Tiger farms workshop   Read more

Published on : 2007-06-26
Marine crocodiles against tiger poaching   Read more

Published on : 2007-06-22
Barun mitra controversy   Read more

Published on : 2007-06-13
Tiger trade and tiger farms forbidden   Read more

Published on : 2007-06-04
Three black tigers in orissa   Read more

Published on : 2007-05-24
Only 500 tigers in 27 indian reserves   Read more

Published on : 0000-00-00
A chinese tiger rediscovered in the wild for the first time since decades?   Read more

 
News
Published on: 2012-11-07
captivity weakens tigers

 

8 October. A study proves that captive breeding weakens animals.
TIGERS CANíT BE MAINTAINED IN BREEDING CENTERS . THEY MUST BE REWILDED
Animals bred in captivity to help conservation programmes can quickly become less fit for survival in the wild, research suggests.
US scientists found steelhead trout reared in hatcheries were much less good at reproducing than wild fish.
Writing in the journal Science, they say the use of captive breeding needs careful re-consideration.
The study chiefly concerned salmonid fish and amphibians.
General considerations are established from these cases.
For some animals, captive breeding is being used more and more as wild habitats disappear (tigers).

Robert Lacy from the Chicago Zoological Society chairs the World Conservation Union's (IUCN) Conservation Breeding Specialist Group, and he believes the steelhead finding does raise an important concern.
"A key question is whether the animals can re-adapt to the wild when you re-introduce them," he said.
"If they can, this research suggests you still might need to breed more of them than we would have thought, because the reproduction rate in the earlier generations is going to be lower.
"I think what it also implies is that you would want to make your re-introductions as soon as possible, rather than rearing generation after generation in captivity."
Not all species would be likely to lose their reproductive fitness as quickly as the steelhead. But for those that do, the effectiveness of captive rearing and re-introduction as a survival strategy is now less assured; and relying on a continuing release of captive-reared individuals would prevent re-adaptation.
Said Dr Lacy: "The other thing this emphasises is that you should do everything you can to stop them disappearing in the first place."



Alain Sennepin