Intensive logging on the part of multinational timber companies is devastating both lowland and montane forest habitats. Logging
also leads to the proliferation of non-native species, which often prove stronger than native species.
Potential threats include conversion of forests to oil palm plantations and increasing population growth pressures. In additional, introduced species such as cats, dogs, rats, pigs, and cane toads can all be detrimental to native species. Feral pigs have been singled out as a particularly harmful introduced species in New Ireland as they eat certain plants selectively to the point that they have been virtually eliminated.