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Recommendations
✔
One to two traps per burrow are suffi cient.
Check traps frequently, to see if the mecha-
nism has been set off.
✔
If a trap is often fi lled with earth, clean the
tunnel and make sure that neither light nor
air penetrates into the tunnel.
✔
For voles, no bait is required, while common
voles are caught more quickly in baited traps:
attach a piece of carrot or apple to the upper
trigger.
✔
Moles (if allowed to trap) are diffi cult to catch
because they live individually in their exten-
sive (100 – 250 m) galleries. Thus patience is
needed.
✔
Voles and moles are sensitive to odours.
While the smell of humans does not repel
them, the strong odour of dissolvents, dung
or perfume does. Traps with such odours are
often fi lled with earth and need to be washed
thoroughly with warm water. Store traps in an
open container in an odour neutral area.
✔
Trapping can be optimised if catches are
protocolled and the following is observed:
•
Voles live in family groups: a male, one or
two females and 4 to 5 offspring.
•
Field mice live in larger groups. Catching
more than 10 mice in the same spot is not
unusual.
•
Moles are solitary except during the mating
season.
For more information: www.topcat.ch
Safety precautions and legal regulations: Page 32
DE
FR
Chracteristics of rodents
Water vole
Arvicola terrestris
Feeds predominantly on underground roots and tubers
Cylindrical body, long and beaver like teeth
Length: 12 – 20 cm; Weight: 60 – 110 g
Heaps are rather
fl at, the soil is slightly
crumbly with plant
and root residues
High
Common vole
Microtus arvalis
Versatile herbivore, specialised on herbs and seeds
Cylindrical body, but more slender
than the bigger water voles
Length: 9 – 12 cm; Weight: 20 – 45 g
Very small amount of
soil around the open
burrow entrance. The
soil is very crumbly
Very high
Mole
Talpa sp.
Carnivore: Earthworms, larvae and insects etc.
Very muscular body, powerful forepaws for digging
and with strong nails. Lean, trunk-like snout
Length: 10 – 15 cm; Weight: 50 – 130 g
Hemispherical with
rough cloddy soil
Low
Diet
Body characteristics
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29
Burrows and mounds
Reproduction potential
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