The Diet of the Introduced Rodents Mus-Musculus L and Rattus-Rattus L on Sub-Antarctic Macquarie Island

Abstract

The diets of Mus musculus and Rattus rattus on Macquarie I . were investigated by analysis of stomach contents collected monthly for 12 months. The diet of the house mouse was found to be mainly invertebrate matter but that of the ship rat was mainly plant material. Seasonal variations were found in both diets but were greater in that of the ship rat than that of the house mouse.