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Microtus arvalis (Pallas)
Mammalia, Rodentia, Microtidae .

Field vole, Meadow mouse, Common vole

Description, Biology, Life Cycle, Damage, Common Names, Images

- Adults: stocky and rounded body, shorter tail or equal to the body length. Head + body length = 9 to 13cm, tail = 3.0 to 4.5cm, posterior foot = 1.3 to 1.8cm, ear = 1.8cm and weight = 18 to 40g (*) .

- It attacks principally cereals, artichoke, witloof chicory, lettuce and chicory.
- The populations follow an annual cycle over which a infestation cycle may be superimposed. The cycle is mimimal after winter, rising rapidly in May-June and maximal in September-October. A precocious start to reproduction in spring and a relatively high population level by the end of winter indicate high infestation potential.
- Infestation cycle in 4 phases: low density (2 to 3 years; 0.
to 10 ind/ha); growth (1 to 2 years); high density (1 to 4 years; 1200 ind/ha); decline (1 to 2 years).
- Lifespan: 6 months.
- Elevated reproduction rate: 3 to 6 annual litters of 4 to 5 youngsters per female.
- Habitat (*) : in holes, forming burrows (diameter: 3.5 cm) with many large openings connected to the surface by outflows where droppings are deposited (*) .
- It feeds on herbaceous plants or seeds found on the surface.

On the aerial parts of cereals, lucerne fields, seed crops, meadows.
In orchards, the base of trunks is gnawed.
Potential vector of human or animal diseases.

[R]Common Names
DE: Feldmaus ES: Ratón de campo FR: Campagnol des champs IT: Arvicola PT: Rato silvestre GB: Common vole, Field vole, Meadow mouse

[R] Images

  1. Microtus arvalis (Pallas) (ACTA)
    Adult and diagram of hole in ground Above : recognition criteria of an active gallery entrance;.
    Below : arrangement of trails and gallery entrances.
  2. Microtus arvalis (Pallas) (Maurin/ ACTA)
    Gallery entrance
  3. Microtus arvalis (Pallas) (BASF)
  4. Microtus arvalis (Pallas) (BASF)

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