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Numero di specie per quadrante di 10 x 10 km. 

Numero di specie per quadrante di 10 x 10 km. 

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Article
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This paper updates the knowledge about dragonflies observed within the administrative boundaries of Liguria (North-west of Italy) to nearly seventy years since the last paper at regional scale (Capra 1945). The study was carried out through the collection of new data and through a revision of bibliography and museological collections. A geographic...

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... la mappa che riporta il numero di specie per qua- drante ( fig. 2) è possibile individuare le aree in cui si concentrano il maggior numero di specie, che corrispondono alle principali zone pianeggianti costiere, ai principali corsi d'acqua del versante padano e alle zone umide dell'Appennino genovese. In particolare nel ponente emergono alcuni quadranti della Val Roja (24 specie), della Piana del ...

Citations

... This ubiquitous and pioneer species inhabits a wide variety of sun-exposed, stagnant and slowflowing waters, including freshwater lagoons, sluggish streams and rivers, as well as artificial water bodies like ditches, reservoirs, gravel pits, quarry lakes and barrage lakes (Kalkman et al. 2015, Wildermuth & Martens 2019, Dijkstra et al. 2020. For Europe, quarry lakes and large reservoirs are reported as the main reproductive habitats of T. annulata (Brochard & van der Ploeg 2013, Ottonello & Oneto 2013, Cabana et al. 2014, Fabbri et al. 2016, Gheza et al. 2019). The species is bivoltine in the Mediterranean area (Boudot et al. 2017). ...
... Its colonisation in France is well documented, spreading separately on Atlantic and Mediterranean front (Deliry 2010), with records from the Loire River catchment representing the species' northern limit in Europe to date (GBIF 2021). Until the late 20 th century, the distribution of T. annulata was limited in Italy to its southern regions -Sicily, Sardinia, Calabria, Basilicata, Apulia, Campania, Lazio (Conci & Nielsen 1956, Battaglini & Percuoco 1967, Carchini et al. 1985 -and Tuscany (Terzani 1991), while in the last two decades it colonised Abruzzo, Marche, Umbria, Emilia-Romagna and Liguria (Fabbri 2011, La Porta et al. 2013, Ottonello & Oneto 2013, Fabbri et al. 2016). Now it is widespread mostly in the areas with the Mediterranean bioclimate (Gheza et al. 2019, Odonata.it ...
Article
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One adult male dragonfly Violet Dropwing Trithemis annulata was recorded at Lake Vogršček in the Vipava Valley (W Slovenia) during the Biological Students Research Camp – Otlica 2021. This first record for the country is presented and the species’ distribution in Europe outlined. Behavioural observations and data on the accompanying Odonata fauna are included. This widespread Afrotropical species has rapidly expanded its range in south and south-western Europe in the recent two decades, with global warming apparently being the main driver of this expansion. Hence, 73 Odonata species belonging to 29 genera and nine families are now reported for Slovenia. Trithemis is the seventh genus to be added to the family Libellulidae for the country. The discovery of T. annulata in the Vipava Valley in Slovenia is significant for the fact of being the northernmost observation on the Balkan Peninsula to date.