Advanced protocol

The advanced protocol involves manipulation of edible dormouse specimens to mark them and take biometric measurements for more detailed monitoring.

For this type of survey, you need to have some previous experience and knowledge of how to handle the species.


Set up a station

Set up a fixed sampling station  consisting of  20 nest boxes, in a quiet area of  deciduous forest, an ideal habitat for the species (forests of oak, beech, hazel, chestnut, ash, maple, etc.). It is recommended that the place selected is close and easily accessible to the collaborator.

The boxes should be numbered and placed as a plot of 4 lines, of 5 nest boxes each, at  30 meters from each other and about 2,5 to 3 meters from the ground.

 Specific nest boxes for edible dormouse should be used, as they are boxes adapted to the needs of this species and with an opening adjusted to the size of the animal.

After the installation of the boxes, the Station registration form must be filled in with all the information requested.

There is also the option of taking an existing station that is inactive.


Check the boxes

The boxes are checked a total of 5 times each year.

A monthly check from July to October between the 15th and 25th is requested coinciding with the activity peak of the species inside the boxes. Moreover, a cleaning check is done during June (any day of the month):

  1. June: Cleaning and maintenance check of the nest boxes. Some birds (e.g. the great tit) might have just left the boxes where they have breed. Besides, there may already be some occasional edible dormouse occupation.
  2. July: First regular occupations of edible dormice. Mating and searching for breeding shelters by females.
  3. August: Mating and start of breeding.
  4. September: Breeding and lactation.
  5. October: Dispersal of the young and pre-hibernation of the adults.

The boxes should be checked in the morning when the edible dormice are most inactive and are resting in the nest boxes. Following the basic protocol, it is not necessary to pick up or manipulate the animals, simply observe the inside of each nest box. It is very important to ensure that the box has been properly checked and that no evidence, individual or pup has been missed.

When checking the boxes, it is important to follow and fill in the Advanced Protocol Field sheet.

Consult this sheet in order to determine the different age and sex classes of edible dormice.

For more information and details see the complete protocol


Enter your data

Sign up as a user in this portal and then you will be able to register the nest boxes of your stations as well as enter the data collected in the field during the nest box checking. The data of the revisions must be entered before December.

To find out how to register and enter the data step by step, please refer to the following web tutorial and have the completed station registration form and field form ready.

For security reasons, all past field sheets must be kept by the user.