On the other hand, ecologists who were expert in dunes and the geomorphologists
chose three common elements: the occurrence of sand extraction, the presence of
urbanization in mobile dunes, and the existence of nearby sources of sediment.
The anthropologist shared a choice with the ecologists who were dune experts; the
presence of hotels or urban infrastructure was an important factor in the
achievement of a successful restoration of a sandy beach.
19.3.3 Mean Relative Importance
The averaging of the relative importance given to each criterion by each of the
experts draws on the experience of all and incorporates all the different points of
view.
Fig. 19.4 Total weighting (Wt) and relative weighting (Wr) of the criteria and subcriteria
evaluated. Four criteria and 10 subcriteria were observed, with their respective Wt and
Wr. Greatest importance (Wt 0.37) is given to the criterion ‘‘facilitators’’, which comprises two
subcriteria ‘‘biotic elements’’ and ‘‘abiotic elements’’. On the other hand, the criterion ‘‘Elements
that assist prioritization’’ received the lowest score (Wt 0.15). This criterion includes four
subcriteria: a endemic and/or high priority flora and fauna; b protected areas; c cultural sites; and
d environmental services
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D. Lithgow et al.
chose three common elements: the occurrence of sand extraction, the presence of
urbanization in mobile dunes, and the existence of nearby sources of sediment.
The anthropologist shared a choice with the ecologists who were dune experts; the
presence of hotels or urban infrastructure was an important factor in the
achievement of a successful restoration of a sandy beach.
19.3.3 Mean Relative Importance
The averaging of the relative importance given to each criterion by each of the
experts draws on the experience of all and incorporates all the different points of
view.
Fig. 19.4 Total weighting (Wt) and relative weighting (Wr) of the criteria and subcriteria
evaluated. Four criteria and 10 subcriteria were observed, with their respective Wt and
Wr. Greatest importance (Wt 0.37) is given to the criterion ‘‘facilitators’’, which comprises two
subcriteria ‘‘biotic elements’’ and ‘‘abiotic elements’’. On the other hand, the criterion ‘‘Elements
that assist prioritization’’ received the lowest score (Wt 0.15). This criterion includes four
subcriteria: a endemic and/or high priority flora and fauna; b protected areas; c cultural sites; and
d environmental services
314
D. Lithgow et al.