It is now listed as endangered in the Red Data Book of the International Union for Conservation of Nature .
Although it has no direct economic value , its presence in Mount Isarog is a barometer of wealth and management of its natural resources .
Mount Isarog is now listed as endangered in the Red Data Book of the International Union for Conservation of Nature .
Although it has no direct economic value , its presence in Mount Isarog is a barometer of wealth and management of its natural resources .