Although it has no direct economic value , its presence in Mount Isarog is a barometer of wealth and management of its natural resources .
Isarog Shrew rat ( Rhynchomys isarogensis ) was first discovered in 1988 in Mount Isarog .
Although Mount Isarog has no direct economic value , Mount Isarog 's presence Mount Isarog   Isarog is a barometer of wealth and management of its natural resources .
Isarog Shrew rat ( Rhynchomys isarogensis ) was first discovered in 1988 in Mount Isarog .