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Small mammal survey Jersey 2014

Produced by the Environment (Infrastructure, Housing and Environment)
Authored by Natural Solutions Ltd and published on 30 Jul 2015
Cost: £22,787.56

Summary

​​In 2014 the Department of the Environment commissioned Natural Solutions Ltd. to carry out a survey of small mammals in Jersey and to prepare a detailed assessment of the changes that have occurred in population densities since an initial survey carried out in 1998.

At 22 sites in 9 different habitats across the Island, 4 species were surveyed:

  • the wood mouse
  • Jersey bank vole
  • the lesser white-toothed shrew
  • Millet's shrew

This report looks at population numbers, densities and biomass over different seasons and habitats, with the aim of finding out more about the changes that have occurred over the 16 year period.

The vole and the 2 shrew species are protected under the Conservation of Wildlife (Jersey) Law 2000 and Jersey is committed through its legislation and international conventions to monitor and protect them.

Results indicate that since 1998 wood mice have continued to be widespread; the Jersey bank vole has followed a similar pattern but appeared to favour heathlands, hedgerows, woodlands and undisturbed grasslands.

The data for shrew species was more difficult to compare across the 2 surveys due to a low capture rate and a patchy distribution across sites, seasons and years.

Further work is required to determine what could be affecting the shrews' distribution and population numbers in Jersey.


Download small mammal survey Jersey 2014 (size 2mb)
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