What is confounding is that head or article is about supposed beneficial effects of Hippo released from Escobar's zoo, to conclude listing the bad effects of Hippo on African rivers.
Besides taking advantage of an opportunity to attack an outsider to your tribes, you missed it all the content of Urquiola' post.
Cattle and Sheep were brought to South America by Spaniards, so, Yak and other animals from Tibet and Nepal will pose no bigger nor different challenge to ecosystem from those already there, simply, newcomers could be better adapted, thus yielding better productivity in the output expected from it. A pilot study is always feasible.
The connection to people is that if animals from these Asian high mountains adapt well to Bolivian heights, so may adapt Asian heights' people; arrival of a new set of genes that improve human performance in extreme heights, if these genes differ in Bolivian to Nepalese and Tibet people, may help Bolivia inhabitants resist the workload in the poor oxygen supply there, thus reducing the pressure to use Coca leaves, you know the reason for the ethnic use of Coca leaves is the very hard working is in such high places.
Don't you think people coming from a constant battle desert culture, thriving on other's money (Deut 23,..), or prone to the looting side of double Viking activity, sometimes trading, sometimes ravaging, posed a threat to Native American Human cultures and people?
What nature did not give, Cambridge does not lend.
Increasingly clumsy? Gesund +