order rodentia family muridae
Post on 12-Feb-2016
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Order RodentiaFamily Muridae• Diastema
• 1 pair incisors• Ears shorter than tail• Eyes, ears visible• Tail naked;
annulations visible• Tail not longer than
head and body• Dorsal, ventral pelage
nearly same colorRattus norvegicus
Mus musculusIdentification: Mouselike size; gray-brown dorsum and slightly lighter venter; naked tail; few hairs on ears (TL 130-200mm)
Distribution: Statewide
Habitat: Vicinity of humans; occasionally fields, other disturbed habitats
Mus musculusDiet: Omnivorous
Reproduction: Multiple litters of 3-10 each year
Conservation: Introduced; common
Mus musculus
Other: Introduced by early immigrants from Eurasia; carries some human diseases (typhus, rickettsialpox)
Rattus norvegicusIdentification: Ratlike size;
brown dorsum and slightly lighter venter; naked tail; little hair on ears; abdomen swollen anterior to tail (TL 315-460mm)
Distribution: Statewide
Rattus norvegicusHabitat: Almost exclusively
near human habitations; confined to 1st floor and basement in buildings
Diet: Grain, food scraps, chicken eggs, chicks
Reproduction: Up to 12 litters of as many as 12 young annually
Conservation: Introduced; common
Rattus norvegicusOther: Introduced in 1700s; damages food stores; historically significant as vector of bacterium causing bubonic plague
http://www.insecta-inspecta.com
http://www.columbia.edu
Order RodentiaFamily Zapodidae• Diastema
• 1 pair incisors• Ears shorter than tail• Eyes, ears visible• Tail furred• Tail much longer than
head and body• Hind feet elongate
Zapus hudsonius
Zapus hudsoniusIdentification: Pelage coarse
with dark brown dorsal band; yellowish flanks; venter white; bicolored tail
Distribution: Statewide
Habitat: Moist grassland, weedy habitats
Zapus hudsoniusDiet: Seeds, fruits, fungus,
invertebrates
Reproduction: 2 litters of 2-8 annually
Conservation: Common
Other: Hops only when scared or pursued
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