New national and regional Annex I Habitat records: from #16 to #20

New data on the distribution of the Annex I Habitats 3120, 3260, 6310, 9180* and 92A0 are reported in this contribution. In detail, 3 new occurrences in Natura 2000 Sites are presented and 5 new cells in the EEA 10 km x 10 km Reference grid are added. The new data refer to Italy and in particular to the Administrative Regions of Liguria, Sardinia, Sicily and Umbria. This issue of the section “Habitat records” includes an Errata corrige referring to the last released issue.


Introduction
This is the fourth standardized contribution reporting records of new occurrences of Annex I Habitats in Europe. The occurrences reported here turned out to be new based on the comparison with the results of the 4th Report ex-Art. 17 on Annex I Habitat Monitoring in Europe (Eionet 2019). Also in this case, the related phytosociological relevés will be archived in the Italian database "VegItaly" (Gigante et al. 2012;Landucci et al. 2012).

Habitats Records
Data, details and descriptions of the new habitat records are hereafter provided, according to the standard format (Gigante et al. 2019). A general overview is reported in Tab. 1. For the cartographic analyses and maps production, the open source QGIS Geographic Information System (QGIS.org 2020) has been used.
The Habitat 3260 was already known for this SPA, with reference to another area (Fosso Mergani in Pian Grande of Castelluccio) falling in a different EEA cell (Eionet 2019). As concerns the new record, the Ranunculus thrichophyllus-dominated community occurs in the river Sordo bed, while the Veronico-Apietum submersi on a tributary southernmost spring stream. Surveys from this area had already been published by Pedrotti (2008) with no reference to Annex I habitats.
Although Habitat 3260 is reported in the Standard Data Form of the adjacent and contiguous SAC IT5210059 "Marcite di Norcia", falling in the same cell grid, it results as non-occurring in the 4th Report ex-Art. 17 on Annex I Habitat Monitoring (Eionet 2019). It should also be noticed that, due to recent changes, the current configura-       (Fig. 3). Natura 2000 Site Codes: SPA ITA030043 "Monti Nebrodi". Phytosociological table: Tabs. 4-5; taxonomic nomenclature according to Galasso et al. (2018). Notes: In Sicily, geobotanical and phytosociological research conducted in recent years has made a significant contribution to the knowledge on distribution of various habitats and species of Community interest (Caldarella et al. 2013;De Castro et al. 2008Gianguzzi and La Mantia 2008;Gianguzzi et al. 2010Gianguzzi et al. , 2016Gianguzzi andBazan, 2019, 2020;Marino et al. 2012, etc.). Regarding the habitat 6310 (Dehesas with evergreen Quercus spp.) it is rarely observed in Sicily, unlike Sardinia where it is more common (Bagella 2016;Biondi et al. 2009). In fact, in Sicily this habitat is very rare and punctual, located in small areas at the edge of the forests of sub-mountainous and high-hilly belt (in particular Nebrodi, Peloritani, Etna and Madonie).
Interesting aspects of the habitat 6310 were detected along the valley of Buzza stream, near Caronia (ME), in the coastal area of Nebrodi Mts, on flysch formations with a thermo-and mesomediterranean subhumid bioclimate (Gianguzzi 2007).
The habitat has a clear anthropogenic origin due to the partial deforestation of Quercus suber wood, the cutting of shrub and soil plowing. It is a pasture quite peculiar in Sicily for its dual attitude. In fact, the pasture is grazed by cattle, sheep and horses, during most of the year, and by pigs (the native breed "Suino nero dei Nebrodi"), especially in autumn, in order to exploit the acorns production of cork oak (Fig. 4).
In the literature, only forest elements (Quercus suber, Q. ilex subsp. ilex and Q. coccifera) are indicated as typical species for this habitat, as well as some herbaceous taxa of Poetea bulbosae (Biondi et al. 2009;Bagella 2016). The floristic composition of this habitat is very heterogeneous in the Mediterranean area, also due to the fact that it actually refers to a vegetation mosaic. In the present paper, we report 2 phytosociological relevés representative of grasslands and shrublands related to Habitat 6310 in , linked to secondary aspects of the cork oak series and, in particular, to the pastures of Cirsietalia vallis-demonii (Brullo & Grillo 1978). For this area, we suggest that some herbaceous taxa such as Lolium perenne, Cynosurus cristatus, Dactylis glomerata, should be considered among the "reference plant species".  (Biondi and Blasi 2015) Geographic information: Italy, Liguria, Imperia, Ponte dei Passi, between 750 and 800 m a.s.l., Coordinates: 7.83854 E, 44.02037 N (Tab. 6, Rel. 1). Cells ID in the EEA reference grid: 10kmE414N232 (Fig. 5). Natura 2000 Site Code: currently not included in any Natura 2000 Site. Phytosociological table: Tab. 6; taxonomic nomenclature according to Bartolucci et al. (2018) and later updates, and Aleffi et al. (2020). Notes: The finding occurred during the activities for the Interreg ALCOTRA CoBiodiv and GeBiodiv projects. The habitat occupies a narrow belt within the ravines near the confluence of three montane creeks (i.e., Teroselli, Giurè and Conchè). Despite the phytosociological relevé was performed outside the border, the patch of habitat ex-        Bartolucci et al. (2018) and Galasso et al. (2018), and later updates.

Notes:
The finding occurred during the field surveys for the implementation of the SAC Management Plan. Although reported by Mariotti (2008) for the Entella river, the presence of the Habitat in the indicated cell has not been included in the Article 17 Habitats Directive IV Report (Eionet 2019). The habitat occupies a narrow part of the Entella river banks on the left orographic side. The habitat is degraded by the abundance of exotic species, as well as by the significant anthropic impact.

Errata Corrige
The recently published "New national and regional Annex I Habitat records: from #13 to #15" , published in this journal (Plant Sociology 57 (1): 65-74), makes a wrong reference to the Habitat code 7120 instead of 7210*, in both figure and table captions. As correctly indicated in the text, the record refers unmistakeably to Habitat 7210*.
In the same paper, the geographical coordinates in Tabs. 2 and 3 appeared to be modified due to the wrong cell format. Also in this case, the coordinates are correctly indicated in the text.
Hereafter the corrected version of the errata is shown in Tab. 8.   Table 8. Errata corrige referring to "New national and regional Annex I Habitat records: from #13 to #15" .
page erratum corrige