Write any three causes of rareness of bengal tiger and mention its any four conservational measures
Answers
Answer:
Hunting and human population growth are the main threats to Bengal Tigers. As human populations grow, people need more places to live. This reduces the amount of wild habitat for the tiger. People also need more food to eat and may well hunt the same animals for food as the tigers rely on for their survival.
Explanation:
Various diseases also take their toll silently on the wildlife, including the predators. Many animals die and there is no way to ascertain the cause of their death. There are certain diseases that spread like epidemic and play havoc. Diseases like Feline Panleucopania (highly contagious and can be fatal), tuberculosis, sarcosystis, etc. have led to the decimation of many animals including tigers. Health management of wildlife, a relatively new area, is totally neglected. There is an urgent need to incorporate this field in the area of wildlife conservation.
New Threat : canine distemper virus (CDV)
A new threat to wild tiger populations has surfaced in the form of a deadly virus. According to a recent study (2014) from the Wildlife Conservation Society (WCS), canine distemper virus (CDV) has the potential to be a significant driver in pushing the tigers towards extinction. While CDV has recently been shown to lead to the deaths of individual tigers, its long-term impacts on tiger populations had never before been studied, researchers said.
The authors evaluated these impacts on the Amur tiger population in Russia’s Sikhote-Alin Biosphere Zapovednik (SABZ), where tiger numbers declined from 38 individuals to 9 in the years 2007 to 2012. In 2009 and 2010, six adult tigers died or disappeared from the reserve, and CDV was confirmed in two dead tigers leading scientists to believe that CDV likely played a role in the overall decline of the population.
Joint investigations of CDV have been an ongoing focus of scientists since its first appearance in tigers in 2003. The finding shows that smaller populations of tigers were more vulnerable to extinction by CDV. Populations consisting of 25 individuals were 1.65 times more likely to decline in the next 50 years when CDV was present.
The results are profoundly disturbing for global wild tigers given that in most sites where wild tigers persist they are limited to populations of less than 25 adult breeding individuals.