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During the winter of 1948–49 in the Amu Darya (river in central Asia), muskrats constituted 12.3% of jackal feces contents, and 71% of muskrat houses were destroyed by jackals, 16% of which froze and became unsuitable for muskrat occupation. Jackals also harm the muskrat industry by eating muskrats caught in traps or taking skins left out to dry.
This distribution is consistent with round-tailed muskrat fossils found in several Florida locations from the late Pleistocene. [7] It is also consistent with the range of the muskrat (Ondatra zibethicus), who is absent from areas where the round-tailed muskrat inhabits, due to filling the same ecological niche. Population densities of round ...
The round-tailed muskrat (N. alleni) is only found in Florida and adjacent Georgia, just outside of the range of O. zibethicus. Some authorities place both genera in different tribes (Ondatrini for Ondatra , Neofibrini for Neofiber ), but the American Society of Mammalogists places both in Ondatrini, and some molecular evidence supports a close ...
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The USDA map published in 2012 shows that most of the US has become a half zone (2.8 °C or 5 °F) hotter in winter compared to the 1990 release. [8] Again, with the publication of the 2023 map, about half of the US has shifted a half zone warmer. [ 93 ]
The most convenient distinguishing feature of the Arvicolinae is the nature of their molar teeth, which have prismatic cusps in the shape of alternating triangles. These molars are an adaptation to a herbivorous diet in which the major food plants include a large proportion of abrasive materials such as phytoliths; the teeth get worn down by abrasion throughout the adult life of the animal and ...
[8] Sunrise over Knox Marsh. Mammalian species that roam this refuge include raccoon, coyote, muskrat, squirrel, red fox, chipmunk, beaver, gray fox and bats. [8] Reptile and Amphibian species include spring peepers, snapping turtle, and tree frogs. [4]