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The black rat (Rattus rattus), also known as the roof rat, ship rat, or house rat, is a common long-tailed rodent of the stereotypical rat genus Rattus, in the subfamily Murinae. [1] It likely originated in the Indian subcontinent, but is now found worldwide. [2] The black rat is black to light brown in colour with a lighter underside.
There are a few feral rat species in South Florida, including brown rats (Rattus norvegicus), but black rats are considerably more populous than any other species of rat. All exotic rats compete with native mice and rodents for food and shelter, but the black rat is noted for significantly affecting the endangered Key Largo woodrat ( Neotoma ...
Rats are by far the most common introduced mammals on seabird islands. [2] [3] Currently, approximately 80% of islands worldwide have populations of introduced rats. [2]The most common introduced species is the Norway rat (Rattus norvegicus), but black rats (R. rattus, also known as “ship rat”) and Polynesian rats (R. exulans) have found their way to offshore islands and have subsequently ...
The brown rat and its smaller cousins, the black rat (Rattus rattus), and the house mouse (Mus musculus), are the three most successful invasive mammals on Earth. (Coincidentally, they also have ...
This is a list of invasive species in North America.A species is regarded as invasive if it has been introduced by human action to a location, area, or region where it did not previously occur naturally (i.e., is not a native species), becomes capable of establishing a breeding population in the new location without further intervention by humans, and becomes a pest in the new location ...
Rattus rattus, the black rat, is considered to be one of the world's worst invasive species. [59] Also known as the ship rat , it has been carried worldwide as a stowaway on seagoing vessels for millennia and has usually accompanied men to any new area visited or settled by human beings by sea.
The best-known Rattus species are the black rat (R. rattus) and the brown rat (R. norvegicus). The group is generally known as the Old World rats or true rats and originated in Asia. Rats are bigger than most Old World mice, which are their relatives, but seldom weigh over 500 grams (1.1 lb) in the wild.
Conservationists rejoiced when California declared the San Bernardino kangaroo rat an endangered species. The celebration was short lived however.