Despite being known as the Norway rat, Rattus norvegicus is native to northern China. International trade introduced throughout rest of the world beginning in the 18th century. Brown rats are now found on every continent except Antarctica.
Where are Norway rats invasive?
In Europe, the Norway rat exists primarily in close relationship with humans, but there are also wild populations along water edges. The Norway rat is considered to be territorial throughout most of the year, but they will spread when food is scarce, and migrations have been observed (Wittenberg, R. (ed.)
How did the Norway rats get to America?
Site and Date of Introduction: Norway rats are believed to have first arrived in the United States on boats around 1776. They were brought over in boxes of grain by Hessian troops who were hired by Britain to fight the American colonists.
Where is Norway rat found?
North America Sometimes called “Norway wood rats” or “Norwegian water rats,” Norway rats are prevalent throughout North America. Arriving on ships from Great Britain circa 1775, these rodents quickly spread throughout the American Midwest.
Where are Norway rats found in the US?
Species Range Norway rats have spread throughout the contiguous 48 states, Alaska, and Hawaii. They generally are found at lower elevations but may occur wherever humans live.
Are there rats in Norway?
The Norway rat commonly referred to as the street or sewer rat, is believed to be of Asian origin, arriving in the U.S. on ships from other countries in the 1700s. Today, Norway rats are found throughout the world. Norway rats are known to cause damage to properties and structures through their gnawing.
How long does a Norway rat live?
2 yearsIn the wild Brown rat/Lifespan