63. Dehesa de la Avellaneda, Gregos Range (central Spain)

Abstract

Site details TheDehesa de la Avellaneda mire (40° 19′ 19.28′′ N, 4° 46′ 50.62′′ W; size c. 0.01 ha; 1325 m above sea level [a.s.l.]) lies on the south-eastern slope of the ‘Sierra del Artuñero’ in the eastern part of the Gredos Range (Casavieja, Ávila). The climate is of a Mediterranean type, wet and cold in winter (0–2 °C) and dry and warm (20–22 °C) in summer, with a summer drought period lasting 3–5 months and heavy rainfall in autumn and winter. The average annual temperature is 14 °C and the annual precipitation is 1400 mm. The most representative plant communities of the area are maritime pine (Pinus pinaster Ait.) and Pyrenean oak (Quercus pyrenaica Willd.) woodlands, and isolated Pinus nigra Arnold subsp. salzmannii (Dunal) Franco trees (LópezSáez et al. 2019). The uppermost areas (1600– 1915 m a.s.l.) are occupied by broom communities of Cytisus oromediterraneus Rivas-Martínez, Díaz, Prieto, Loidi & Penas and Echinospartum barnadesii (Graells) Rothm (López-Sáez et al. 2016). The mire vegetation is composed mainly of Sphagnum sp., Carex nigra (L.) Reich. and Drosera rotundifolia L. The bedrock is old siliceous basement made up mainly of Late-Hercynian granites.