The Site of Community Importance "Giara di Gesturi" features a marked geomorphological homogeneity that corresponds with a significant ecological variety. In fact, on the plateau and the steep slopes that surround it, there are different habitats considered to be habitats of community interest due to their environmental importance and ecological value, so they are protected under the "Habitats Directive" (92/43 / EEC). Among these, it is worth mentioning the presence of two priority habitats, which are under particular forms of protection because of their vulnerability.
The following table lists the Habitats of Community Interest that have been identified within the Site. The high ecological variety is demonstrated by the presence of habitats belonging to different environmental systems (natural and semi-natural grasslands, shrublands and sclerophyll woods, Mediterranean forests, and freshwater formations).
Habitat 3120 - Oligotrophic water containing very few minerals, generally on sandy soils of the Western Mediterranean, with Isoëtes spp.
Habitat 3130 - Oligotrophic to mesotrophic stagnant water with vegetation of the Littorelletea uniflorae and/or of the Isoëto-Nanojuncetea
Priority Habitat 3170* - Mediterranean temporary ponds
Habitat 5330 - Thermo-Mediterranean and pre-desert scrub
Priority Habitat 6220* - Pseudo-steppe with grasses and annuals from the Thero-Brachypodietea
Habitat 6310 - Dehesas with evergreen Quercus spp.
Habitat 9330 - Quercus suber forests
Habitat 9340 - Quercus ilex and Quercus rotundifolia forests