Rattus

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Related to Rattus rattus: genus Rattus, Black rats

Rattus

 

a genus of rodents of the family Muridae.

The body length of the rat ranges from 10 to 30 cm. The tail is slightly longer or shorter than the body and covered with scales and sparse hair. The snout is pointed; the ears, large and leathery. About 60 species of Rattus are known, distributed originally in the forests of the tropics and subtropics (Africa, southern Asia). As early as the Paleolithic, certain synanthropic species began to spread northward, following man, and gradually settling very widely (including America).

There are three species of rats in the USSR. The black rat (R. rattus), a synanthrope, is found in the European part of the USSR and in the Far East. The brown rat (R. norvegicus), also a synanthrope, is found in Siberia. The Turkestan rat (R. turke-stanicus) lives in the wild in the mountain forests of Kirghizia, Uzbekistan, and Tadzhikistan. The first two species also live under natural conditions in the southern parts of their areas of distribution, in burrows and tree hollows.

Rats reproduce every three or four months, bearing five to 15 young; these become sexually mature at the age of three or four months. Rats are omnivorous. They cause great damage by spoiling and eating food products and certain materials (for example, leather) and damaging living and working premises. They are carriers of helminthic and many infectious diseases. They are controlled by mechanical, chemical, and biological methods. The skins can serve as a raw material for second-grade leather and fur.

REFERENCES

Argiropulo, A. I. Semeistvo Muridae—myshi. Moscow-Leningrad, 1940. (Fauna SSSR: Mlekopitaiushchie, vol. 3, issue 5.)
Ellerman, J. R. The Families and Genera of Living Rodents, vol. 3, part 1. London, 1949.

I. M. GROMOV

References in periodicals archive ?
Porcion proximal: Medula escalentarme uniseriada (Rattus rattus, MUSA 268) (A) y Cuticula petalo diamante "tipo A" (Rattus norvegicus, MUSA 463) (B).
cruzi (7/68) (8.7% for Rattus rattus, 40% for Peromyscus yucatanicus, and 42.8% for Ototylomys phyllotis) with an average parasite load of 3.15 [+ or -] 1.98 eq-parasites/mg.
(Burseraceae), poco despues de una erradicacion de ratas (Rattus rattus [L.]; Muridae) en la isla de Desecheo, Puerto Rico.
In this study, Rattus rattus is the dominant rat species found in urban areas of Sarawak.
Por mucho tiempo, la mayoria de los estudios de leptospirosis se centraron en las ratas Rattus rattus y Rattus norvegicus [14, 20, 29, 30, 36, 41,43, 44, 45, 47], donde ha sido comprobada la presencia de la serovariedad Icterohaemorrhagiae [26, 34, 36, 41, 44, 45, 47], asi como las serovariedades Hebdomadis, Javanica, Australis, Bataviae, Canicola, y Pomona [34, 39].
Pearson's correlation coefficient was calculated to assess the relationship between the total body length and number of species (richness) of fungi present in the Rattus rattus specimens.
Parshad, "Antifeeding effects of a neem (Azadirachta indica)-based formulation botanical bird repellent against the house rat (Rattus rattus)," Indian Journal of Agricultural Sciences, vol.
Like Phytophthora cinnamomi, Rattus rattus is a generalist that can thrive on any number of diets and get cozy in an incredibly wide range of human-impacted environments, from urban to rural, as well as in the wild.
Reconyx images have provided indications that the mangroves are inhabited by Black Rat (Rattus rattus), a species previously unknown to inhabit the mangrove, and by House Crow Corvus splendens.
Transmission and shedding patterns of Salmonella in naturally infected captive wild roof rats (Rattus rattus) from a Salmonella-contaminated layer farm.
The classic natural cycle of this agent includes as a reservoirs two rats species (Rattus rattus and Rattus norvergicus) and the flea Xenopsilla cheopsis as a vector.