Sminthopsis gilberti (Gilbert's Dunnart) is a species of mammals in the family Dasyurid Marsupials. They are found in australasia. Reproduction is dioecious.
Definition: The largest scale biogeographic division of the earth's surface based on the historic and evolutionary distribution patterns of plants and animals.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)