lagomorpha. order lagomorpha derived from greek lagos ("hare") and morphē...
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Lagomorpha
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Order Lagomorpha• Derived from Greek lagos ("hare") and morphē ("form")
• 80 species• Two families
- Leporidae – Rabbits and hares- Ochotonidae – pikas
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Characteristics of Lagomorpha
• have 4 incisor on upper jaw (rodents have 2)• only eat vegetation• male's scrotum is in front of the penis• penis has no bone (baculum) unlike the
rodent penis• will redigest first-time droppings (called
cecotropes) to obtain the most from their plant diet
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Ochotonidae
• American Pika- Western North America- live in rock piles - size of a large hamster - rounded ears - egg shape body - 6 to 8.5 inches in length - weigh 100grams
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Pikas • Herbivore
• Active year round, even in winter
• It survives the cold winter by eating dried vegetation they have stored away in hay piles
• alpine grasses, sedges, thistles, fireweed, cushion plants and lichens
• Food passes quickly though the digestive, system only partially digested
• eat their own feces (waste) to extract more nutrients in the digestion process.
• http://www.youtube.com/watch?v=Tus1FHc7XWU
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Eastern Cotton Tail • Mating during Feb. – September • Males mate with more then one female• Females can have 1-7 litters a years with as many as 1-
12 kits. • Average number of litters is 3-4 and average kits are 5• Kits are weaned at 3 weeks and leave the nest after 7
weeks
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Eastern Cotton Tail
• Territorial • Nocturnal • When running can jump 15 feet• Runs zigzag when chased• Can run up to 18mph • Preferred habitat: Forests, swamps, thickets,
bushes or open areas where it can dig a burrow are optimal habitation sites for this species
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Species in Pennsylvania
• Three different Lagomorphs in Pa- Eastern Cotton Tail - New England Cotton Tail - Snowshoe Hare
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Differences
• To determine the difference between Eastern Cottontail and New England Cottontail – In the field compare ear size and body size– New England have smaller ears and bodies– (95%) have a black line on the front edge of the
ear (Easterns 40%)– In the laboratory skull characteristics and
measurements and by DNA techniques.
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Sylvilagus floridanus (Eastern Cotton Tail)
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New England Cottontail Distribution
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Snowshoe Hare Distribution
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Other North American Species
Pygmy Rabbit Brachylagus idahoensis
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Other North American Species
Arctic Hare Lepus arcticus
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Other North American Species
White- tailed Jack Rabbit Lepus townsendii
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Other North American Species
European Rabbit Oryctolagus cuniculus Domesticated Rabbit
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Other North American Species
Swamp Rabitts Sylvilagus aquaticus
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References
• http://thewebsiteofeverything.com• http://animaldiversity.ummz.umich.edu• http://www.pikaworks.com/pikas/