L’occhione (Burhinus oedicnemus) nel Parco Nazionale dell’Alta Murgia: effetti della struttura di vegetazione e dell’uso del suolo sull’abbondanza della specie

The density of the Stone-curlew in the Alta Murgia National Park during the breeding season 2013. The estimated density was equal to 11 ind/Km², with a minimum number of individuals between 164 and 172. The values of abundance of the species appear to be adversely affected by the height of the sward that is found mainly in the arable land with cereals, in pseudosteppe and uncultivated land, while in arable leguminous this parameter seems to affect positively the values of abundance. Currently one of the factors of threat are to be highlighted in the changes of land use, from arable crops to irrigated tree crops.