Giacomo Mei

• PhD in forestry and forest ecology
• PostDoc Position at Free University of Bozen-Bolzano

New Italian data on the distribution of some of the Annex I Habitats are reported in this contribution. Specifically, 16 records are presented including 9 new occurrences in Natura 2000 sites, and 27 new cells are added in the EEA 10 km × 10 km reference grid. The new data refer to the Italian administrative regions of Abruzzo, Apulia, Latium, Marc...

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, exclusions, and status changes from casual to naturalized or invasive for Italy or for Italian administrative regions for taxa in the genera Acacia, Akebia, Allocasuarina, Aloë, Brachychiton, Convolvulus, Freesia, Gled...

In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations, and exclusions to the Italian administrative regions for taxa in the genera Alchemilla, Carex, Chenopodium, Cistus, Convolvulus, Erysimum, Euphorbia, Festuca, Klasea, Lotus, Orobanche, Poa, Stellaria, T...

In this article, we propose a silvicultural approach that takes soil health into account. Using a biblical metaphor, the first chapter highlights the forest's critical role in the planet's future, emphasizing that forest biodiversity is essential for sustaining a planet inhabited by complex life forms like humans. The second chapter focuses to the...

New Italian data on the distribution of the Annex I Habitats are reported in this contribution. Specifically, 9 new occurrences in Natura 2000 sites are presented and 34 new cells are added in the EEA 10 km × 10 km reference grid. The new data refer to the Italian administrative regions of Abruzzo, Apulia, Calabria, Latium, Lombardy, Marche, Sardin...

Despite the wide amount of scientific contributions published on alien plant species, their diffusion dynamics, and their interactions with native taxa, it is increasingly difficult to slow down their spreading and their negative impact on habitats. Last recent years, in fact, a sharp rise in the number of new alien plant taxa introduced in Italy a...

A single paragraph of about 200 words maximum. For research articles, abstracts should give a pertinent overview of the work. We strongly encourage authors to use the following style of structured abstracts, but without headings: (1) Background: Place the question addressed in a broad context and highlight the purpose of the study; (2) Methods: bri...

New Italian data on the distribution of 17 Annex I Habitats are reported in this contribution. Specifically, 11 new occurrences in Natura 2000 sites are presented and 30 new cells are added in the EEA 10 km × 10 km reference grid. The new data refer to the Italian administrative regions of Apulia, Campania, Calabria, Lazio, Sardinia, Sicily and Tus...

In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations, and exclusions to the Italian administrative regions. Nomenclatural and distribution updates, published elsewhere, and corrigenda are provided as supplementary material.

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records and status changes from casual to naturalized for Italy or for Italian administrative regions. Nomenclatural and distribution updates, published elsewhere, and corrections are provided as supplementary material.

We propose a silviculture with a purely biological logic that takes soil into account. The article is divided into three parts: 1) presentation of the issue in the context of biodiversity and forest pro-tection; 2) impact of the soil functioning on forestry; 3) possible implementation of soil functioning in forestry practice, to support and protect...

The results of the annual excursion of the Working Group for Vegetation Science of the Italian Botanical Society, held in the Egadi Islands, Mount San Giuliano and Mount Cofano (W Sicily) on April 23–27 2022, are presented. This paper includes: (1) general information on the visited sites; (2) geology and geomorphology; (3) climatology and bioclima...

New Italian data on the distribution of the Annex I Habitats are reported in this contribution. Specifically, 8 new occurrences in Natura 2000 sites are presented and 49 new cells are added in the EEA 10 km × 10 km reference grid. The new data refer to the Italian administrative regions of Campania, Calabria, Marche, Piedmont, Sardinia, Sicily, Tus...

In recent years, three sections (Humipedon, Copedon and Lithopedon) were recognized in the soil profile. It was then possible to link the first and most biologically active section to the characteristics of the environment and soil genesis. In particular, it is now possible to distinguish organic horizons, mainly produced by arthropods and enchytra...

Identifying areas susceptible to invasion by an alien species is a strategy of prevention. We used national herbaria and global databases to assess the invasion trends of the two aquatic invasive species Ludwigia hexapetala and Ludwigia peploides subsp. montevidensis in Italy. We defined the invasion status with invasions curves and predicted poten...

New Italian data on the distribution of Annex I Habitats are reported in this contribution. Specifically, 8 new occurrences in Natura 2000 sites are presented and 27 new cells are added in the EEA 10 km × 10 km reference grid. The new data refer to the Italian administrative regions of Apulia, Campania, Calabria, Lazio, Tuscany, Umbria, Sardinia, a...

In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations, and status changes to the Italian administrative regions. Nomenclatural and distribution updates, published elsewhere, and corrigenda are provided as Suppl. material 1.

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, confirmations, and status changes for Italy or for Italian administrative regions. Nomenclatural and distribution updates, published elsewhere, and corrections are provided as Suppl. material 1

We analysed the invasion history of two North American macrophytes (Elodea canadensis and E. nuttallii) in Italy, through an accurate census of all available herbarium and field records, dating between 1850 and 2019, and a rich literature collection describing the initial introduction and naturalisation phase that supports the results obtained by t...

It was time to take stock. We modified the humipedon classification key published in 2018 to make it easier and more practical. This morpho-functional taxonomy of the topsoil (humipedon) was only available in English; we also translated it into French and Italian. A standardized morpho-functional classification of humipedons (roughly the top 30–40...

In this contribution, Italian new data concerning the distribution of the Annex I Habitats 3150, 3170*, 3260, 4090, 91L0, 91M0, 9340 are reported. In detail, 20 new occurrences in Natura 2000 sites are presented and 30 new cells are added in the EEA 10 km × 10 km reference grid. The new data refer to the Italian administrative regions of Campania,...

It was time to take stock. We modified the humipedons classification key published in 2018, to make it easier and more practical. This morpho-functional taxonomy of the topsoil (humipedon) was only available in English: we also translated it into French and Italian. A standardized morpho-functional classification of humipedon (roughly the top 30-40...

In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations, and exclusions to the Italian administrative regions. Nomenclatural and distribution updates, published elsewhere, and corrigenda are provided as Suppl. material 1.

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, confirmations, exclusions, and status changes for Italy or for Italian administrative regions. Nomenclatural and distribution updates published elsewhere are provided as Suppl. material 1.

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, confirmations, exclusions, and status changes for Italy or for Italian administrative regions. Nomenclatural and distribution updates published elsewhere are provided as Suppl. material 1.

In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations, exclusions, and status changes to the Italian administrative regions. Nomenclatural and distribution updates, published elsewhere, and corrigenda are provided as Suppl. material 1.

The tradition of floristic studies in Italy has made it possible to obtain a good knowledge of plant diversity both on a national and regional scale. However, the lack of knowledge for some areas, advances in plant systematics and human activities related to globalization, highlight the need for further studies aimed at improving floristic knowledg...

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, confirmations, exclusions, and status changes for Italy or for Italian administrative regions. Nomenclatural and distribution updates published elsewhere are provided as Suppl. material 1.

In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations, exclusions, and status changes to the Italian administrative regions. A new combination in the genus Pilosella is proposed. Nomenclatural and distribution updates, published elsewhere, and corrigenda ar...

WEBINAR: https://unipd.zoom.us/j/5745799331 TITLE: SOIL BIODIVERSITY AND MANAGEMENT - Practical tools and actions for facing the future JUNE 24th 14h30-16h30 1. Topsoil classification QUESTION: Is there a wise way to use the soil? 15h30 - 16h30 GENERAL DISCUSSION JUNE 25th 14h00-15h00 2. 2.1. Soil and biodiversity QUESTION: Is soil biodiversity...

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, confirmations, exclusions, and status changes for Italy or for Italian administrative regions. Nomenclatural and distribution updates published elsewhere are provided as Suppl. material 1.

In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations, exclusions, and status changes to the Italian administrative regions for taxa in the genera Artemisia, Chaetonychia, Cirsium, Cynanchum, Genista, Hieracium, Iberis, Melica, Misopates, Myosotis, Thalictr...

Cystopteris dickieana, a rare circum-Holarctic species, is recorded for the first time for the NW part of the Balkan area. Mature spores rugose characterize this fern within the C. fragilis species complex.

The paper presents new records for 39 vascular plant species from eight Eurasian countries. Aniselytron treutleri (Poaceae), Hackelochloa granularis (Poaceae), Melica kozlovii (Poaceae) and Melica nutans (Poaceae) are reported from China; Dichondra micrantha (Convolvulaceae) from Hungary; Orobanche serbica (Orobanchaceae) and Viscum album subsp. au...

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, confirmations, exclusions, and status changes for Italy or for Italian administrative regions. Furthermore, three new combinations are proposed. Nomenclatural and distribution updates published elsewhere are provided a...

Ehrharta Thunb. (Poaceae) is an African genus ranging from South Africa to Ethiopia and Yemen that includes approximately 35 species (Fish et al. 2015). Given that Ehrharta delicatula and Ehrharta erecta are reported for the Italian territory in the specialist literature (e.g. Pignatti 1982; Galasso et al. 2018), aim of the present work, based on b...

Despite the importance for scientific and conservation purposes, the knowledge of the Italian territory is far from exhaustive. New chorological data for 87 vascular taxa regarding the central-southern part of Italy and its two main islands (Sicilia and Sardegna) are presented. Among these taxa, Epilobium nummularifolium, Metrosideros excelsa, and...

The study of biodiversity is commonly carried out through different approaches, such as those at the level of genetics, species, communities/ecosystems, and landscapes. The group of geneticists, geobotanists and landscape researchers of the Department of agriculture, food and environmental sciences has been dealing with this topic for many years. I...

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, confirmations, exclusions, and status changes for Italy or for Italian administrative regions of taxa in the genera Bunias, Calocedrus, Calycanthus, Celosia, Clerodendrum, Convolvulus, Crassula, Cyclamen, Datura, Dicli...

Ehrharta erecta (Poaceae, Ehrhartoideae) is a neophyte native to South Africa and it is considered as one of the most invasive plant species in the world. The aim of the present work, based on bibliographic, herbarium and in the field researches, is to update the distribution of Ehrharta erecta in Italy. As long as the present researches were carri...

The paper presents the first results of monitoring Natura 2000 habitat type 91E0* in the Plitvice Lakes National Park (Croatia). This type is represented in black alder forests ( Alnus glutinosa /L./ Gaertn . ) on an area of 44 ha. There, following the Braun-Blanquet method (1964), 25 plots were set up and relevés made, with 175 species of higher p...

Ostrya carpinifolia forests are formations traditionally managed as coppice, with a high biodiversity that characterizes much of the Italian and Balkan low mountain and hill landscapes. Here, we analyze changes in vegetation, seed-bank, soil and litter at six different stages during the coppicing rotation and after 10 years of abandonment of an Ost...

Since the Greco-Roman era, most of the forest formations characterizing the low hill and lowland areas have been managed and strongly reduced in terms of surface area in order to obtain timber, fire wood, non-wood forest products (honey, mushrooms, etc.), pastures, agricultural and urban areas (Piussi & Alberti 2015). These activities are illustrat...

Having identified the Ostrya carpinifolia forests as one of the most widespread forest types in the Apennines-Balkan bio-geographical region (Horvat 1950; Puncer and Zupancic 1982; Tabacchi and Gasparini 2012) and having highlighted the shortage of studies, and the lack of inclusion of these coenoses in the habitats described at European level (EEA...

In this contribution, new data concerning the distribution of vascular flora alien to Italy are presented. It includes new records, confirmations, exclusions, and status changes for Italy or for Italian administrative regions of taxa in the genera Acalypha, Acer, Canna, Cardamine, Cedrus, Chlorophytum, Citrus, Cyperus, Epilobium, Eucalyptus, Euphor...

In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations and status changes to the Italian administrative regions for taxa in the genera Alchemilla , Arundo , Bupleurum , Clematis , Clinopodium , Cota , Crassula , Cytisus , Euphorbia , Hieracium , Isoëtes , La...

In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records and confirmations to the Italian administrative regions for taxa in the genera Allium , Arabis , Campanula , Centaurea , Chaerophyllum , Crocus , Dactylis , Dianthus , Festuca , Galanthus , Helianthemum , Lysimachia ,...

Coppicing is an ancient forestry practice diffuse throughout the Mediterranean area that has shaped and still characterizes much of the Italian hilly and mountainous landscape. However, the socioeconomic changes that have characterized the last 50years have led to widespread abandonment of historically coppiced areas, with consequent effects on the...

Salix x aurigerana Lapeyr., observé en Andorre en juillet 2018, est à ajouter à la flore de la principauté.

In this contribution, new data concerning the Italian distribution of alien vascular flora are presented. It includes new records, exclusions, confirmations, and status changes for Italy or for Italian administrative regions for taxa in the genera Acer, Amaranthus, Araujia, Aubrieta, Avena, Bidens, Calycanthus, Celtis, Elaeagnus, Eragrostis, Euonym...

A multidisciplinary study extended over 85 hectares of forest, traditionally managed by coppice and qualified by Scutellario columnae-Ostrietum carpinifoliae, allowed us to observe the parameters characterizing the different stages of development of plant communities, whose presence characterizes the forest areas managed with this form of governmen...

Caratterizzanti gran parte del paesaggio collinare-basso montano italiano e gestite esclusivamente a ceduo, le formazioni forestali afferenti alla categoria degli ostrieti, hanno rappresentato nei secoli scorsi una grande risorsa per le popolazioni dell’entroterra. Alla luce dei recenti studi ecologici e vegetazionali che evidenziano un maggior liv...

Dall’ultimo dopoguerra a oggi nel paesaggio rurale basso collinare e planiziale italiano si è registrata una semplificazione ambientale seguita daimpoverimentoqualitativo e quantitativodella biodiversità vegetale senza precedenti, soprattutto a caricodelle aree seminaturali non produttive.Le principali cause di questo processo sono riconducibili al...

This study analyzes ecological dynamics of six forest management units located on Mt. Nerone (Central-Northern Apennines) that have been managed as coppices for more than three centuries to investigate, by means of a synchronic approach, the effects of coppicing practice on the forest ecosystem recovery process and the evolution of its various comp...

La ceduazione, con cui sono gestite sistematicamente le principali formazioni a latifoglie del nostro paese, è una pratica selvicolturale antichissima e importante in tutta l’area del Mediterraneo (Piussi e Alberti, 2015), che ha plasmato e che caratterizza tutt’oggi gran parte del paesaggio italiano basso-montano e collinare. Tuttavia la selvicolt...

Il territorio del S.I.C. 18IT5310017 “Monte Nerone - Gola di Gorgo a Cerbara (tra i più estesi a livello nazionale, con 8155 Ha) è interessato dalla presenza di una stazione sciistica che incide direttamente su un habitat forestale prioritario (9210). Vengono analizzate le condizioni degli habitat, sulla cui base sia possibile monitorare nel tempo...

Vengono esposti i risultati ottenuti dall’elaborazione dei dati raccolti su oltre 170 ceppaie e 1400 polloni in sette differenti momenti del turno di un orno ostrieto mesofilo ceduo sul Monte Nerone (Appennino Umbro-Marchigiano), individuati in aree assimilabili per gestione, morfologia, pedologia, vegetazione ed esposizione, al fine di fornire nuo...

Lo studio analizza le caratteristiche dendrometriche, ecologiche, floristico-vegetazionali e pedologiche di sei particelle afferenti al tipo forestale “ostrieto mesofilo” omologhe per gestione e morfologia stazionale ma con anzianità dal taglio ripartita in un arco temporale di 36 anni, localizzate sul versante Nord-Orientale del M.te Nerone(PU) e...

Airborne LIDAR technology has led to a dramatic increase in terrain information. LiDAR-derived high-resolution Digital Terrain Models (DTMs) are now widely available, and have opened avenues for hydrologic and geomorphologic studies (Tarolli et al., 2009). In general all the main surface processes signatures are rightly recognized using a DTM grid...