The AbE measure implemented in Tomas includes both green and gray infrastructure. The green infrastructure, which is the ecosystems, is improved by promoting appropriate pasture and vicuña management practices and expanding the sustainably managed area. As for the gray infrastructure, it is the fence itself.

Thus, the improvement of green-gray infrastructure consisted of expanding the fenced area for vicuña management in communal pastures (from 38 to 241 hectares). The process to carry it out began with the diagnosis and design of the AbE measure, which was validated in a community assembly. Subsequently, the area to be fenced was mapped out, the holes were dug and the wooden posts were planted. Finally, the entire fence was painted.

All these actions were carried out through community work, under the leadership of the vicuña committee.

Once the fence was completed and the documentation was in order, the vicuñas were captured and sheared(chaku). At the initiative of the community, the preparation of the chaku included making an offering to the mountain to "ask for permission and a good omen".

More than 200 people participated in the chaku: children, youth, women and men from the community and some outsiders.