Mountain gorillas are considered critically endangered by IUCN’s Red List. Not only are mountain gorillas threatened by loss of habitat due to human encroachment, they have also become victims of human violence.As civil war rages in Africa, efforts to conserve mountain gorilla populations have been curtailed.Mountain gorillas have also been killed or captured by poachers.ot only are mountain gorillas threatened by loss of habitat due to human encroachment, they have also become victims of human violence. As civil war rages in Africa, efforts to conserve mountain gorilla populations have been curtailed. Mountain gorillas have also been killed or captured by poachers.