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GS-III :

21 June, 2020
8 Min Read

Climate change impact on Ungulates

A struggle to co-exist with humans

Today, the whopping 750 crores human population has made an impact on most flora and fauna.
Taking into consideration this lack of abatement in human population growth, an international team of researchers observes how these ecological disruptions affect the life of ungulates (hoofed large mammals).
The team notes that humans have brought about changes in the Himalayan realm – there is an increase in cashmere goats, and also, stray dogs have started hunting ungulates including threatened, endangered, and rare ones such as kiang, chiru, saiga and takin.

Himalaya and Andes

The team also draws similarities between the two giant mountain ranges – the Himalaya and the Andes, both homes to unique ungulate fauna.
Both are currently experiencing increased deglaciation, human colonisation, climate alteration, livestock and tourism-induced changes.
A paper published in Frontiers in Ecology and Evolution stresses that the “world’s 400 million free-ranging dogs – through disease, predation, and displacement – have changed the face of ungulate communities on every continent.”
Dogs prey on saiga, blue sheep, argali, chiru, kiang, goral, ibex, sambar, chital and blackbuck.
The high elevation dogs of Bhutan also harbour tapeworms which when consumed via grasses by yaks can cause coenurosis, a neurological disease that may result in about 10% mortality of young yaks.
Human activities such as the seasonal relocation of agro-pastoralists to collect the worm fungus Cordyceps can also have an impact on the ungulates.
These high-elevation environments have experienced minimal direct human disturbance, and this movement can lead to the displacement of native species.
Previous studies have shown that many apex predators have been lost due to fear, habitat conversion and loss of prey.

Key issues

Issues of the 19th and 20th century, overharvest, poaching, and wildlife slaughter will not be the most pressing in the 21st century.” Climate change and rapid destruction of habitat will be key.
High-elevation ungulates have been known to be affected through changes in ice and snow and the availability of snow patches.

Source: TH

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