Due to different barriers to free movement of tigers in the Sundarbans, inbreeding occurs among a small population - compromising the genetic diversity of these big cats which eventually results in diseased and weak cubs.
Chief conservator of Forest Department Md Amir Hossain Chowdhury told UNB, “Big rivers like Shibsa, Poshur, and Pangashia are dividing the Bengal tiger into small populations, which result in inbreeding. Inbreeding among tigers with similar genes increases the morbidity and mortality rate of the tigers.”
Transferring of the tigers from one population to another inside the Sundarbans can increase their genetic variety, possibility to survive and as a result the number of tigers will rise, he added.
Amid the growing concern over extinction facing the tiger, 13 tiger-populated countries including Bangladesh are celebrating International Tiger Day 2022 on Friday with different programmes to create awareness.
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This year’s slogan for the day is "Tiger is our pride, everyone's responsibility to protect”.
According to Sundarbans East Forest Department the tiger population may increase in Bangladesh part of Sundarbans in this year’s census, which is good news for environmentalists and animal lovers across the globe.
According to a survey conducted in 2018 by camera trapping, there were 114 tigers.