Habitat Generally indoors, preferring dry nesting locations. Limited home range, with foraging activities rarely above several meters from nest site. Nests are usually situated in close proximity to food sources and are generally made from shredded paper and other materials present in the local environment.
Pest Status Widespread and relatively cosmopolitan, this species is a frequent pest of homes and industrial sites. Urinating frequently, feeding from multiple sites, food spoilage and the spread of disease is closely associated with M. domesticus.
Control The combined use of monitoring equipment, baits and physical control methods where appropriate is recommended. Bait formulation is an important factor, due to the high specificity of food selection by this species.
The Common Rat
Habitat Often found beside water, on the banks of streams and ditches. Sewers also provide habitat, and access to street level feeding areas, particularly in cities.
Pest Status Increasingly important in urban areas, this species has adapted readily to environments with close proximity to large human populations. Also problematic when newly introduced on small islands.
Control Usually involves use of well protected anticoagulant bait. Other means may be used, such as acute baits, or physical control methods. Monitoring is also critical for successful management of common rat populations