Biodiversity Check-list from the Tramuntana Mountain Range
The “Serra de Tramuntana”, declared Natural Area contains marine areas with widespread and consolidated meadows of Posidonia oceanica. P. oceanica is not an alga but is a plant that lives in the sandy bottom up to about 40 meters deep. Its role into the ecosystem is really important since many species of organisms found food and shelter among its meadow; moreover, this plant acts as a protective and regenerative factor for beaches. The aim of the present work was to study the presence of invasive species and their potential deleterious effects on P. oceanica meadows in the protected area of Cala Figuera (Pollença, Spain), a marine area of the Serra de Tramuntana Natural Area. The current results showed a good state of conservation of Posidonia meadows in this area, with a number of shoots greater than 700 shoots/m2. As it occurs in many of the Balearic coastline, this area is affected until a significant degree by invasive species such as the algae Lophocladia lallemandii, Caulerpa racemosa and Acrothamnion sp. or the crab Percnon gibbesi. L. lallemandii is the main invasive algae reported in the area and it is invading most of P. oceanica meadows. Nowadays, the eradication of the invasive species is impossible, but it is necessary to study along time these species to assess their impact on autochthonous flora and fauna.
Nota breu en la que es constata per primer cop la presencia de Ranunculus trichophyllus trichophyllus a la Serra de Tramuntana
We report an unusual case of nesting common moorhen Gallinula chloropus inside a road bridge, which has been observed for two consecutive years in Majorca.
The vascular flora of the public Son Moragues estate is has been catalogued during a year period. An approximation to the floristic richness of this area has been obtained. In this paper, the floristic catalog and the biogeografic analysis of this flora have been presented. 384 taxa have been catalogued in this area. Arisarum simorhinum, Chiliadenus saxatilis, Hainardia cylindrica, Phyllitis scolopendrium, Poa infirma and Zannichellia peltata are the most singular species of this study. Also, temporary ponds have been localised, this habitat is prioritary according to the European Union Habitat Directive. These temporary ponds haven’t been cited at previous references of this area.
Recull de cites faunistiques intéressants a les Illes Baleares en el periode 2011-2012
Recull d'observacions de fauna en el periode 2009-2010