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Showing 32 Information results for Sorex
Sorex araneus Eurasian shrew
...2000) There are a number of predators of Sorex araneus, as listed below. (Kristofik 1999, Parker 1990) Sorex araneus makes burrows below ground, and also uses the burrows of mice, voles, and moles. (Stone 1995) There may be some pest invertebrates in the diet of Sorex araneus. Sorex araneus eats helpful invertebrates such as earthworms and spiders. The main threat to Sorex araneus is...
Sorex cinereus cinereus shrew; masked shrew
...Common shrews are common and widespread and none of the Genus Sorex, including Sorex cinereus, are considered to be threatened or endangered species (Boyd et al., 1999; Nagorsen, 1996; Wilson and Ruff, 1999).
Sorex dispar long-tailed shrew
The range of Sorex dispar extends from Nova Scotia, Canada south through Eastern Tennessee and North Carolina (Nowak,1999). In the United States, they are found in greatest abundance throughout the Appalachian Mountain Range (PA Game Commission website, 2001). Sorex dispar has a wide tolerance for altitudinal variation, as well as different types of vegetation. They can be found in cool, damp forests, both...
Sorex monticolus montane shrew
Dusky shrews are one of the most common members of the genus Sorex in North America. They can be found from northern Alaska to New Mexico and from the Pacific coast to central Manitoba (Smith & Belk, 1996). They also inhabit the Rocky Mountains, Blue Mountains, and the Sierra Nevada. In addition dusky shrews can be found on Vancouver Island and Queen Charlotte Island (Willson...
Sorex merriami Merriam's shrew
Merriam's shrews, Sorex merriami, range from north-central Washington south to Eastern California, down through Arizona to New Mexico. They range as far east as western Nebraska and North Dakota. A recent study discovered that the Merriam's shrews known geographic range has now expanded as far north as British Columbia in Canada. Merriam's shrews live in dry habitats compared to other...
Sorex hoyi pygmy shrew
Pygmy shrews, Sorex hoyi, are distributed throughout the boreal region of North America. The northern extent of the species' geographic range spans from Alaska to the east coast of Canada south of the tundra. It ranges as far south as the Rocky Mountains of Colorado and the Appalachian Mountains of the northeastern United States. Sorex hoyi, although rare locally, occupies a wide variety of...
Sorex palustris water shrew
Water shrews, Sorex palustris, are found throughout Alaska and Canada to the northern mountain regions of the United States. Water shrews are common inhabitants of northern forests. As the name would suggest, water shrews are often found around streams and other aquatic habitats. Areas with high humidity surrounded by heavy vegetation, logs and rocks are preferred. Water shrews are relatively large shrews with males...
Sorex alpinus alpine shrew
...Although home range size in Sorex alpinus is unknown, population densities of Sorex alpinus range from 1 to 2 animals per hectare. In closely related species, home ranges are 530 to 1800 m^2 for S. minutus, and 370 to 630 m^2 for S. araneus. Sorex alpinus is relatively less vocal than closely related species, S. minutus and S. araneus. All Sorex have...
Sorex tundrensis tundra shrew
...Sorex tundrensis is a member of the Sorex araneus group, which has trivalent sex chromosomes (X, Y1, and Y2) in males (Lukacova, et al. 1996). Other species belonging to this group are European common shrews (Sorex araneus) and Arctic shrews (Sorex arcticus) (van Zyll de Jong 1983). Interestingly, Palearctic populations of S. tundrensis have a karyotype that is considered most primitive in Sorex araneus...
Sorex gaspensis Gaspé shrew
...gaspensis is unknown, however, species from the genus Sorex typically live between one and two years. The behavior of S. gaspensis is not known. However species of the genus Sorex tend to be solitary and highly aggressive toward one another. It is likely that Gaspe shrews are like their congeners in this respect. Memebers of the genus Sorex are often active both day and...
Sorex fumeus smoky shrew
Smoky shrews (Sorex fumeus) are native to the eastern United States, with a range running along the Appalachian Mountains and extending as far north as southern Canada. Their boundaries include far north as southeastern Canada (southern Ontario, Quebec) with the Atlantic coast as the eastward limit. It extends westward to Lake Superior in the north. The range continues southward, through the northeastern and mid...
Sorex arcticus Arctic shrew
Arctic shrews, Sorex arcticus, are native to North America. Their distribution ranges as from the Arctic Circle in the north and as far south as the northern United States, into North and South Dakota, Wisconsin, Michigan, and Minnesota. Their eastern limits are in eastern Quebec and the Atlantic Maritime provinces, and their western limits are the southern Yukon and Mackenzie valleys. Sorex arcticus occupies...
Sorex minutus Eurasian pygmy shrew
...As with other Sorex species, the teeth of Sorex minutus are red, which is due to the deposition of iron that helps protect the teeth against wear. It has an extremely high metabolic rate (9.62 cm^3 oxygen/hour), which is typical of Sorex species as well. Sorex minutus is the smallest native British shrew. Adult body length ranges from 39 to 60...
Sorex pacificus Pacific shrew
Pacific shrews (Sorex pacificus) are a Nearctic species found along the Pacific coast of the United States. Their range includes nearly the entire western coastline of Oregon inland to national forests. There are 4 disjunct populations: 2 in Oregon (one in the Mt Hood National Forest and one north of Upper Klamath Lake and south of the Calapooya Mountains) and 2 smaller areas in...
Sorex longirostris southeastern shrew
Southeastern shrews (Sorex longirostris) are prominently found in the southeastern United States. They are found as far south as central Florida and as far north as central Illinois and southern Maryland. Southeastern shrews are found as far west as eastern Oklahoma, and eastward along the east coast of the United States. Two subspecies of southeastern shrews are recognized by some researchers. Dismal Swamp southeastern...
Dicamptodon aterrimus Idaho Giant Salamander
...An assortment of small mammals are also predators, including members of the weasel family and the common water shrew Sorex palustris. The Idaho giant salamander plays a very important role in the temperate forest ecosystem. It potentially contributes to the control of the local insect population by using them as a primary food source. This species falls prey to many for many smaller mammals...
Plethodon vehiculum Western Red-backed Salamander
...Predators include garter snakes (Thamnophis sirtalis), Steller’s Jays (Cyanocitta stelleri), shrews (Sorex species), shrew-moles (Neurotrichus gibbsii), American dippers (Cinclus mexicanus), and carabid beetles (Calleida decora). Western red-backed salamanders play an important role within the ecosystem by regulating the population of small invertebrates on woodland forest floors. By consuming invertebrates such as beetles, flies, ants and worms which ingest leaf matter, western...
Muntiacus reevesi Reeves's muntjac
...Essentially, at high densities, the competition for resources and habitat modification through loss of cover will cause a decline in the populations of small mammals (such as Apodemus sylvaticus, Micromys minutus, Sorex anareus, Sorex minutus, Clethrionomys glareolus, Apodemus flavicollis, Muscardinus avellanarius) that ripples through the food chain, especially affecting the predators of small mammals: Mustela nivalis, Mustela erminea and Vulpes vulpes. Muntiacus reevesi has...
Ascaphus truei Coastal Tailed Frog; Tailed Frog
...Of those accounts that exist, common garter snakes, shrews (Sorex) and western terrestrial garter snakes were observed consuming post-metamorphic tailed frogs. There are also accounts of hellgrammites (Megaloptera), larval Cope’s giant salamanders and Pacific giant salamanders consuming larval tailed frogs. Other predators include trout (Salmonidae), sculpins and dippers. Tailed frog tadpoles can actually act as the dominant herbivore in some stream habitats...
Microtus canicaudus gray-tailed vole
...Mammalian associates of gray-tailed voles include vagrant shrews (Sorex vagrans), townsend moles (Scapanus townsendii), brush rabbits (Sylvilagus bachmani), eastern cottontails (Sylvilagus floridanus), California ground squirrels (Spermophilus beecheyi), camas pocket gophers (Thomomys bulbivorus), deer mice (Peromyscus maniculatus), dusky-footed woodrats (Neotoma fuscipes), townsend voles (Microtus townsendii), creeping voles (Microtus oregoni), Pacific jumping mice (Zapus trinotatus), long-tailed weasels (Mustela frenata) and striped skunks (Mephitis...
Aegolius acadicus northern saw-whet owl; saw-whet owl
...on a branch to eat over the course of several hours.The northern saw-whet owl diet consists primarily of small mammals, particularly deer mice. Voles, red-backed voles, shrews (g. Sorex, Blarina and Cryptotis), shrew-moles, pocket-mice, harvest-mice, bog lemmings, heather voles, red tree voles, jumping mice and house mice are also common prey items. Juveniles of larger mammals, including pocket...
Plethodon hubrichti Peaks of Otter Salamander
...Additional predators could include northern short-tailed shrews (Blarina brevicauda), southeastern shrews (Sorex longirostris), wild turkeys (Meleagris gallopavo), and brown thrashers (Toxostoma rufum).Peaks of Otter salamanders avoid predation through a number of techniques. First, they avoid detection by becoming immobile. Their cryptic coloration presumably helps them avoid detection. Studies of intentional disturbance recorded these salamanders as remaining motionless for 1.5 seconds, up...
Asio otus long-eared owl
...Other small mammals taken include pocket mice, kangaroo rats, pocket gophers, shrews (genera Glarina, Cryptotis and Sorex), juvenile rabbits (genera Sylvilagus and Lepus) and juvenile rats. Long-eared owls also occasionally eat small birds, small snakes, and insects. After capturing prey, long-eared owls kill it by biting the back of the skull and then swallow it whole. Excess prey is stored at the...
Alaudidae larks
...voles and mice (Rodentia), shrews (Sorex), crows (Corvidae) and western meadowlarks (Sturnella neglecta). Up to 90 percent of lark nests may be lost to predators.In response to nest predators, incubating females will flush silently when the predator is far from the nest; if the predator is close to the nest she will feign injury to draw it away. Young larks leave the nest...
Spermophilus citellus European ground squirrel
...This species has also been known to consume common voles (Microtus arvalis), house mice (Mus musculus), common shrews (Sorex araneus), European moles (Talpa europaea), young northern white-breasted hedgehogs (Erinaceus roumanicus), seedlings, grains, fruits and eggs of birds, when available. When Ramos-Lara et al. (2014) examined the stomach contents of this species, three families of plants (Poaceae, Fabaceae, and Asteraceae) constituted 33 to...
...nemoralis include the rook, the brown rat, hedgehogs, moles, field mice, Sorex, rabbits, and maggots. Phorid flies are parasitic and consume C. nemoralis.Anti-predator adaptations of C. nemoralis include the complexity of color and bands on shell varying with the complexity of the landscape, known as background matching. Brown shelled C. nemoralis are found in landward parts which are generally complex landscapes. Unbanded...
Crotalus viridis viridis
...About 92.5% of a juvenile's diet is composed of shrews (Sorex species), deer mice, and voles. Many birds prey on prairie rattlesnakes, including raptors like red-shouldered hawks (Buteo lineatus). Greater roadrunners (Geococcyx californianus) are also common predators. Greater roadrunners kill them by pecking them repeatedly in the head. They feed on snakes so often that they are given the name snake...
Parascalops breweri hairy-tailed mole
...Hairy-tailed moles communicate with northern short-tailed shrews (Blarina brevicauda), masked shrews (Sorex cinereus), meadow voles (Microtus pennsylvanicus), eastern moles (Scalopus aquaticus), and meadow jumping mice (Zapus hudsonius) through quick, harsh, squeaky sounds. They whistle with their teeth as an alarm call toward predators such as northern copperheads (Agkistrodon contortrix) and red foxes (Vulpes vulpes).Hairy-tailed moles have scent glands on their...
...California tiger moths have also been found in the stomach contents of Trowbridge's shrews (Sorex trowbridgii) and are probably eaten by other small mammals. Additional predators likely include other arthropods as well as amphibians, reptiles, and insectivorous birds.California tiger moth adults vary widely in color between populations, but most morphs have bright orange, yellow, or red markings on their wings. The rest...
Vireo solitarius blue-headed vireo
...The predators of blue-headed vireos are barred owls (Strix varia), masked shrews (Sorex cinereus), American crows (Corvus brachyrhynchos), and brown-headed cowbirds (Molothrus ater). Barred owls usually attack female blue-headed vireos at night when brooding. Morton and James (2014) reported that female brown-headed cowbirds prey on unattended nestlings. Nestlings being unattended makes them easy prey because they are not strong enough...
Scapanus townsendii Townsend's mole
...Voles Microtus townsendii, Microtus oregoni, mice Mus musculus, Peromyscus maniculatus, and shrews Sorex spp frequently use mole tunnels as runways. Other mammals that have been observed using mole tunnel system are ground squirrels, gophers, and rats.Townsend’s moles have been found to host many ectoparasite species, including several species of chiggers, fleas, and ticks. Scapanus townsendii has a considerable positive economic impact on...
Microtus montanus montane vole
...For example, other vole species (genus Microtus) and vagrant shrews (Sorex vagrans) have been documented in runway systems of montane voles. Runways serve several purposes. Firtly, as a way to evade predators. Runways provide a path cleared of debris, allowing for quick and silent movement through the habitat and an easy escape from predators. Because home ranges of individual montane voles overlap, runways are...