African experts also shortlisted 10 young, suitable cheetahs aged between 19 and 36 months
Younger cheetahs that are habituated to management vehicles and human presence are preferred candidates for relocation to India, international experts involved in Project Cheetah have told the government based on lessons learnt from the initial experience in Madhya Pradesh's Kuno National Park.
In a status report submitted to the government recently, the experts emphasised that younger cheetahs are more adaptable to their new environments and have higher survival rates compared to older cheetahs.
Younger males display "lower aggression" towards other cheetahs, reducing the risk of intraspecific competition mortality, commonly known as cheetah infighting.
Considering the costs associated with relocating cheetahs to India, the experts highlighted that younger cheetahs have a longer life expectancy post-release, offering higher conservation value and breeding potential.
The experts said younger cheetahs "habituated to management vehicles and humans on foot" allow easier monitoring of health-related issues, simplify stress-free veterinary and management intervention, which is crucial considering the recent cases of radio collar-induced infections in some cheetahs. Additionally, they will enhance tourism value.
Kuno, where two batches of cheetahs from Namibia and South Africa have been introduced, is set to open for tourism and these qualities in cheetahs can enhance the park's appeal to visitors, they said.
The African experts have also shortlisted 10 young, suitable cheetahs aged between 19 months and 36 months that can be made available for relocation to India in early 2024.
They emphasised that although the cheetah mortalities recorded at the Kuno National Park are unfortunate and have attracted negative media attention, they are within the normal parameters for wild cheetah reintroduction.
Six of the 20 adult cheetahs relocated to Kuno from Africa have died since March this year -- the latest being on Wednesday.
The experts drew the government's attention to the initial difficulties faced during cheetah reintroduction attempts in South Africa, where nine out of 10 attempts failed. These experiences led to the establishment of best practices for wild cheetah reintroduction and management.
"In South Africa, it took us 26 years to perfect the cheetah reintroduction and we lost 279 wild cheetahs in the process. We cannot expect India to get this right with just 20 cheetahs. Although such high losses are unlikely in India, Project Cheetah will undoubtedly experience similar growing pains," South African wildlife expert Vincent van der Merwe said.
Based on previous reintroduction experiences in Africa, the India founder population of 20 individuals will further decline to approximately five to seven individuals before population recovery is initiated, the report read.
The experts said the first litters with realistic prospects of survival to adulthood are likely to be born in 2024. However, cheetah cub mortality is expected to be high initially as reintroduced female cheetahs adapt to the different birthing intervals in Asia.
The report also underscored the importance of "supermoms" -- highly successful, fit and fertile female cheetahs that sustain wild cheetah populations in Southern Africa.
Out of the seven wild females relocated to India, only one is likely to be a "supermom", the experts said.
They also said the natural process of cheetahs developing thick coats of fur in anticipation of African winter appears to be proving fatal in India's wet and hot conditions and suggested treatment with long-acting medicine to deal with fatal infections and prevent any more death.
The experts said that the thicker coats, high parasite load and moisture create a perfect recipe for dermatitis with fly strike on top of it compounding the infection and compromising the skin's integrity.
Infections can spread and the contaminated fluids can run down the spine when the cheetahs sit up on their haunches.
The experts said that adapting on an "evolutionary timescale" might be the only permanent solution if there's a genetic link to the development of winter coats.
They emphasised that the relocation of at least 50 more founder cheetahs from the South African metapopulation over the next decade will be crucial for stabilising the Indian population. Continuous swaps between the Southern African and Indian metapopulations will also be necessary for long-term genetic and demographic viability.
The experts strongly advised Indian authorities to identify alternative sites for reintroduction, suggesting that Kuno may be a sink reserve.
Sink reserves are habitats that have limited resources or environmental conditions that are less favourable for the survival or reproduction of a species. Sink reserves are reliant on dispersing animals from source reserves - habitats that provide optimal conditions for population growth and reproduction of a particular species -- to maintain their population numbers.
The experts recommended having at least two additional reintroduction sites available by the end of 2024, with an area of above 50 square kilometres and preferably fenced as unfenced systems worldwide have not seen successful cheetah reintroduction.
Talking to Press Trust of India, Union environment ministry officials had earlier rejected the idea of having fenced reserves, saying it goes against the basic tenets of wildlife conservation.
In a letter to the Supreme Court last month, the international experts had expressed serious concerns about the management of the project.
The experts expressed frustration that they were not being given timely information and were excluded from decision-making processes. They claimed that their involvement has been minimised since a key project leader, YV Jhala, retired.
Some of the cheetah deaths could have been prevented with better monitoring and timely veterinary care, they had told the top court.
The National Tiger Conservation Authority (NTCA) told the Supreme Court that there is no reason to believe that cheetah deaths were caused by any inherent unsuitability at Kuno.
According to the NTCA, cheetahs, in general, have low survival rates, with only 50 per cent of adult cheetahs surviving even in non-introduced populations. For introduced populations, the survival rates are even lower.
While the mortalities are troubling, the NTCA assured that they are not unduly alarming.
Sharing its plans with the top court for the introduction of cheetahs in other areas, the NTCA said it is preparing the Gandhi Sagar Wildlife Sanctuary and the Nauradehi Wildlife Sanctuary in Madhya Pradesh for this purpose.
On the Mukundra Tiger Reserve in Rajasthan, the NTCA said it is not suitable for accommodating cheetahs at the moment. The reserve witnessed the deaths of five tigers in 2020 within a short span of time with some of them attributed to tick and parasitic infections.
The NTCA expressed concerns about the low prey density and a large number of feral cattle carrying a significant amount of parasitic load, which could pose challenges to the survival of cheetahs at Mukundra.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)