Rodent (Rodentia)
[ Taxonomy | Ecology | References ]
Rodent (齧歯類)
Characterized by endless-growing incisors
Taxonomy
Animalia > Chordata > Mammalia > Eutheria > Euarchontoglires > Rodentia
Rodentia (Bowdich 1821)
Sciuromorpha リス
Aplodontiidae (mountain beaver) ヤマビーバー
Gliridae, also Myoxidae and Muscardinidae (dormice) ヤマネ
Sciuridae (squirrels, including chipmunks, prairie dogs, and marmots) リス
Castorimorpha ビーバー
Castoridae (beavers)
Geomyidae (pocket gophers, true gophers)
Heteromyidae (kangaroo rats and kangaroo mice)
Myomorpha ネズミ
Dipodidae (jerboas and jumping mice)
Calomyscidae (mouse-like hamsters)
Cricetidae (hamsters, New World rats and mice, voles) キタゲネズミ
Muridae (true mice and rats, gerbils, spiny mice, crested rat) ネズミ
Nesomyidae (climbing mice, rock mice, white-tailed rat, Malagasy rats and mice)
Platacanthomyidae (spiny dormice)
Spalacidae: mole rats, bamboo rats, and zokors
Anomaluromorpha ウロコオリス
Anomaluridae (scaly-tailed squirrels)
Pedetidae (springhares)
Hystricomorpha ヤマアラシ
Diatomyidae, incertae sedis (Laotian rock rat)
Ctenodactylidae (gundis)
Bathyergidae (African mole rats)
Hystricidae (Old World porcupines)
Petromuridae (dassie rat)
Thryonomyidae (cane rats)
Heptaxodontidae (giant hutias)
Abrocomidae (chinchilla rats)
Capromyidae (hutias)
Caviidae (cavies, including guinea pigs and the capybara)
Chinchillidae (chinchillas and viscachas)
Ctenomyidae (tuco-tucos)
Dasyproctidae (agoutis)
Dinomyidae (pacaranas)
Echimyidae (spiny rats)
Erethizontidae (New World porcupines)
Myocastoridae (nutria)
Octodontidae (octodonts)
Ecology
Mount Usu
Faunal make-up and abundance of rodents 17 years after volcanic eruptions
Rodent densities were estimated on Mount Usu, northern Japan, 17 years after the 1977-1978 volcanic eruptions. The summit area was completely deforested by the eruptions, and was covered with thick tephra. When the survey was performed, two plant communities developed. One was a forest dominated by Populus maximowiczii, and another was a grassland with a canopy of the large perennial, Polygonum sachalinense. In each plant community, we estimated the abundance of rodents by Sherman traps. The abundance was 5 Clethrionomys rutocanus bedfordiae/100 traps/night in the grassland, and 0 in the forest. This implied that a generalist, C. rutocanus bedfordiae became established in the grassland, probably because of plant community structure, including litter deposits, rather than food resources. The results compared with those from Mount St. Helens suggested that rodent immigration was greatly determined by the scales of eruptions and recovery patterns of plant communities. (Iire & Tsuyuzaki 2007)
Toolik lake
At Toolik Lake Research Station on August 8 2009. Three marmot species are in Alaska: hoary marmot (Marmota caligata), Alaska marmot (M. broweri), and woodchuck (M. monax).
References
- Field trip on integrated environmental research (統合環境調査法実習)
- Fauna and flora recorded by the trip (統合環境調査法実習 出現種リスト)
- Irie, K. & Tsuyuzaki S. 2007. Faunal make-up and abundance of rodents 17 years after volcanic eruptions. Northwest Science 81: 333-336
- mammals in Hokkaido (北海道の哺乳類)
- mammal (哺乳類)