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The Snow Mountains grassland mosaic-tailed rat (Melomys frigicola), also known as the Snow Mountains grassland melomys, is a species of rodent in the family Muridae.It is endemic to the mountainous west part of the island of New Guinea, where its range extends from Lake Habbema to the Baliem Valley, in Papua Province, Indonesia.
Based on the historical records, it appears that extremely cold winters can cause a dramatic decline in populations. In 1912 and 1918, severe winters reduced the Illinois eastern woodrat populations. In 1948 and 1949, long winters with accumulation of snow and ice might have caused high mortality of litters in Kansas and starvation of adults. [24]
The mating system in this species appears to be variable, with promiscuity most generally at high population densities and monogamy at lower densities. [ 3 ] They are similar in appearance to the common rat species Rattus rattus and Rattus norvegicus , but with larger ears and eyes, softer coats, and furred tails.
The bushy-tailed woodrat, or packrat (Neotoma cinerea) is a species of rodent in the family Cricetidae found in Canada and the United States. [2] Its natural habitats are boreal forests, temperate forests, dry savanna, temperate shrubland, and temperate grassland.
Bird tracks in snow. An animal track is an imprint left behind in soil, snow, or mud, or on some other ground surface, by an animal walking across it. Animal tracks are used by hunters in tracking their prey and by naturalists to identify animals living in a given area. [1]
The snow water content is well above the historical average in the northern Sierra but is at a record level in both the central Sierra and southern Sierra, outpacing the historic winter of 1982-83.
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The Allegheny woodrat (Neotoma magister), is a species of "pack rat" in the genus Neotoma. Once believed to be a subspecies of the eastern woodrat ( Neotoma floridana ), extensive DNA analysis has proven it to be a distinct species.