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Harvest mice seem to have an affinity for all types of cereal heads, except for maize (Zea mays). Harvest mice typically like using monocotyledons for their nest-building, especially the common reed (Phragmites australis) and Siberian iris (Iris sibirica). [7] Most harvest mice prefer wetlands for their nesting habitats. [14] [15]
Females weigh more than males with increases in female weight being concordant with reproduction. [3] They vary in length from 107–128 millimetres (4.2–5.0 in). [ 4 ] The eastern harvest mouse is primarily nocturnal and has an average life span of 9.5 weeks.
The western harvest mouse is an herbivore with a diet consisting of mainly seeds and grains from various plants. These plants include: fruits, vetch, blue grass, fescue, oats, and brome grass. [ 6 ] In preparation for autumn and winter, the western harvest mouse stores its food along runways created throughout fields that it occupies and in ...
The animals were last recoded at Perivale Wood in west London in 1979.
Similar species are the plains harvest mouse (Reithrodontomys montanus) and the fulvous harvest mouse (R. fulvescens), which has a longer tail.The species co-occurs with the similar western harvest mouse (R. megalotis), which tends to have dorsal fur that is more gray than R. raviventris and with ventral fur that is white to grayish; and the house mouse (Mus musculus), which is gray, has a ...
Micromys is a genus of small rodents in the subfamily Murinae.The genus contains two living species: the widespread Eurasian harvest mouse (Micromys minutus) of much of Europe and Asia; and the more restricted Indochinese harvest mouse (Micromys erythrotis) of Vietnam, southern China, and perhaps nearby regions. [1]
Newborn plains harvest mice weigh about 1 g. [3] It is born naked and blind. Its hair grows in 6 days, it opens its eyes at 8 days, and weaning is in 14 days. [3] Reaching adult size takes 5 weeks. When it is juvenile, the fur is plain, sparse and curled like cotton. [3] As a juvenile, the hair becomes more shiny, but less dense than the adult. [3]
It is omnivorous and feeds on seeds, desert plants, snails, and insects. Living in desert regions, it is a xeric animal that obtains water from the plants that it eats and produces very concentrated urine in order to conserve water. [2] A. russatus is naturally nocturnal, but adapts to being diurnal when it shares a habitat with A. cahirinus.