order: Soricomorpha. Order: Soricomorpha . Posts about Masked Shrew written by Mary Holland. Masked Shrew Sorex cinereus. Masked Shrew. Its tail is fairly long and bicolored. Pacific Water Shrew (Sorex bendirii) Masked Shrew (Sorex cinereus) Pygmy Shrew (Sorex hoyi) Merriam's Shrew (Sorex merriami) Dusky Shrew (Sorex monticolus) Northern Water Shrew (Sorex palustris) Preble's Shrew (Sorex preblei) Olympic Shrew (Sorex rohweri) Trowbridge's Shrew (Sorex trowbridgii) Vagrant Shrew Binomial name; Sorex cinereus. It can make high frequency pulses and has lateral scent glands. At birth the hairless young weigh 0.25 g (0.009 oz.) Sorex arcticus Arctic Shrew. Food and Feeding Behavior: Insects comprise 65% of the diet, which also includes centipedes, spiders, earthworms, and carrion. Predators include larger shrews, hawks, owls, shrikes, snakes, herons, foxes, leopard frogs, bluebirds, brown trouts, and weasels. The masked shrew displays characters typical of all shrews. Predators: Larger shrews, owls, hawks, snakes, frogs, and fish are a few of their predators. American Midland Naturalist, 138(2), 268. FEATURES An adult masked shrew is between three and one-half and four and one -half inches in length, including the tail. Kirkland, G.L., Jr. and D.F. This may be due to higher temperatures increasing the availability of the shrew's main diet. (2008). Average length of the tail is 1.5 inches (3.9cm), comprising over 40% its … Moisture determines the abundance of this shrew. They eat insects, worms, snails, small rodents, salamanders, and seeds. Order: Insectivora. Their metabolism drops when they are at rest. Known for their high metabolism, shrews possess an incessant need to eat high quality foods. Sorex cinereus Masked Shrew. They eat insects, worms, snails, small rodents, salamanders, and seeds. pp. ILLINOIS STATUS common, native . Summary 2. Its range covers most of northern North America extending south as far down to Maryland, along the Rocky Mountains in the west, and to the Appalachians in the east. The eyes are tiny, the tail scantily haired, and the limbs short. Whitaker, J. O. Masked shrews can be nocturnal or diurnal depending on the weather. OCLC 62265494. A masked shrew requires large quantities of food each day, and one kept in captivity ate 3.3 times its own body weight in a 24 hour period. Sorex arcticus. ISBN 978-0-8018-8221-0. Order - Shrews - Soricomorpha. 1988. I reviewed the literature and identified potential causes of varied trappability in small mammals. Abundance, habitat, reproduction, and morphology of forest dwelling small mammals of Nova Scotia and southeastern New Brunswick. Its body is about 9 cm in length including a 4 cm long tail. Measurements of body weight and the length of the tail, ear, hind foot, and body were taken. Journal of Mammalogy, 13:136-143. Seasonal thermogenesis and changes in body mass of masked shrews, Sorex cinereus. Buckner, C.H. The masked shrew mostly lives in humid areas and with high levels of vegetation to hide in. Their tail is brown above and lighter below, with a black tip. Masked shrews are susceptible to many types of parasites, like fleas and tapeworms (Cowan 2007). and J.R. Bider. Although Eurasian shrews exhibit variations of this behavior, the masked shrew may be the only North American species to engage in it. Soricidae Shrews. The small external ears are barely visible or are completely hidden by the fur. Reproduction: The breeding season extends from April to November. They do not occur on Vancouver Island, the Queen Charlotte Islands, in tundra habitats, arctic islands, or in extreme northern Quebec. ) abundance, diet and prey one-half and four and one -half inches in length a. 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