117,582 research outputs found
Heteropterus morpheus (Pallas, 1771) in Toscana (Lepidoptera, Hesperiidae)
No full textHeteropterus morpheus (Pallas, 1771) è un esperide a corotipo sibirico-europeo
diffuso in maniera discontinua dalle Alpi all'Aspromonte (Balletto et al. 2016). La
prima segnalazione per la Toscana risale alla seconda metà degli anni '60 del 1900
e si deve a Bassi (1965), che lo raccolse in provincia di Firenze in località Olmo
presso Vetta Le Croci (comune di Fiesole) nel giugno del 1964. Trascorrerà un decennio prima che venga nuovamente segnalato in provincia di Firenze, questa volta
da Filippo Fabiano, che ne accertò la presenza a La Rocchetta, Molin del Piano (comune di Pontassieve) e nel Borro delle Sieci, Molin del Piano (comune di Pontassieve) nel giugno del 1974 (Fabiano & Terzani 2002).
Fino alla fine degli anni '70 Heteropterus morpheus risultava decisamente raro
in Toscana, essendo noto nelle sole tre località preappenniniche della provincia di
Firenze sopra riportate. È a partire dagli inizi degli anni '80 che le segnalazioni aumentano e vanno a interessare un buon numero di stazioni della regione per lo più
dislocate negli Appennini, in alcuni rilievi del preappennino (Chianti, Montagnola
Senese, Colline Metallifere, Monte Cetona), nel Padule di Fucecchio e nella Valdinievole (Fabiano & Terzani 2002; Usvelli 2002; Favilli et al. 2004, 2009, 2013, 2021;
Balletto et al. 2005, 2007; Dapporto et al. 2005; Bartolini 2008; Petri 2010; Soldano
2014; Favilli & Piazzini 2017a, 2017b, 2022). Questi reperti attestano una discreta
diffusione in Toscana al contrario di quanto fosse avvenuto sino al 1980.
Scopo di questa nota è aggiornare le conoscenze sulla presenza di Heteropterus
morpheus in Toscana in base a quanto ad oggi noto mappando la sua distribuzione
regionale ed evidenziando le preferenze altitudinali e la fenologia della specie
I Ropaloceri del litorale a duna della ZSC IT5160004 Padule di Bolgheri (Livorno, Toscana) (Lepidoptera)
No full textNel 2015 è stata studiata la fauna a Ropaloceri del litorale a duna della ZSC IT5160004 Padule di Bolgheri (provincia di Livorno). I campionamenti sono stati effettuati due volte al mese, da aprile a ottobre, in un transetto di 1 km utilizzando il metodo di Pollard and Yates (1993). Complessivamente sono stati campionati 422 esemplari attribuibili a 30 specie. Le specie dominanti sono 7 (Lasiommata megera, Leptotes pirithous, Colias crocea, Gonepteryx rhamni, Pieris brassicae, Gonepteryx cleopatra, Hipparchia statilinus, Coenonympha elbana, Anthocharis cardamines, Pieris rapae e Limenitis reducta), abbondanti 4, 7 comuni, 7 occasionali e 5 rare. Rilevante è la presenza di Gegenes nostrodamus, in diminuzione in Italia e di Coenonympha elbana, endemica della Toscana. Si tratta di una fauna povera in specie, costituita da entità euriece e che non sono esclusive dell’ambiente di duna. Nel sistema a duna indagato i Ropaloceri sono, quindi, rappresentati in modo limitato e non annoverano entità utili a caratterizzarle in maniera univoca
Xerosecta giustii a new hygromiid from Tuscany (Italy) close to extinction (Gastropoda, Pulmonata: Helicoidea)
No full textXerosecta giustii n, sp. is described from one locality in the Colline Metallifere (southern Tuscany, Italy). The new species is easily distinguished from all the other species of Xerosecta, both conchologically by virtue of its medium-sized, subglobose to depressed, robust shell, usually opaque, waxen, uniformly grey to whitish-grey in colour, and anatomically by genitalia as in Xerosecta species, but with a voluminous genital atrium containing a large, crest-like structure. The new species has only been found in the type locality and, at present, no other species endemic to Tuscany is known to have such a reduced distribution. This population did not seem to be threatened by human activity. Live snails, however, can no longer be found. A long drought in the winter of 1992-93 and the spring of 1993 and ploughing of part of the site might be responsible for disappearance of the population
Il genere Carcharodus Hübner, 1819 in provincia di Siena (Toscana)
No full textThe genus Carcharodus Hübner, 1819 in the province of Siena is represented by three species: Carcharodus alceae (Esper, [1780]), Carcharodus floccifer (Zeller, 1847) and Carcharodus lavatherae (Esper, [1783]). C. alceae is widespread; attends mostly natural grasslands and pastures, between a minimum of 165 m and up to 890 m altitude, with flight time between the first two weeks of April and the first fortnight of October. C. flocciferus is poorly distributed; attends mostly natural grasslands and pastures, between a minimum of 165 m and a maximum of 850 m above sea level, with flight time between the first two weeks of May and the first fortnight of October. C. lavatherae is rare; attends mostly natural grasslands and pastures, between a minimum of 165 m and a maximum of 750 m altitude, with flight time between the first two weeks of May and the first two weeks of August. For the protection of the populations of these species, it is advisable to keep natural grasslands, pastures, fallow plots and marginal areas, such as road and railway embankments,
disused quarries, former industrial land and bands of respect of cemeteries
Piloting the software SonaPolygonals_1.0: A didactical proposal for the GCD
No full textIn the paper we present a didactic unit designed within a research project on
Arithmetics. The unit objective is to introduce the notion of the Greatest
Common Divisor through sona, sand drawings from African culture, and their
representation by an appropriate software. A brief description of the project
framework, the practice of the sona and the guidelines of the didactic
proposal, as well as a sketch of the main characteristics of the
SonaPolygonals_1.0 software are presented. The first findings of a pilot
project at a few second grade lower seecondary schools in Italy will be also
discussed in the DG15
Le farfalle delle zone speciali di conservazione IT5190008 Lago di Montepulciano e IT5190009 Lago di Chiusi (Toscana) (Lepidoptera Papilionoidea).
No full textButterflies of the IT5190008 Lago di Montepulciano e IT5190009 Lago di Chiusi (Tuscany)’s special areas of conservation (Lepidoptera Papilionoidea). Unpublished data collected between 1990 and 2022 and bibliographic and website data updated to 2023 on the rhopaloceran fauna of the lake of Montepulciano and lake of Chiusi, two special areas of conservation (92/43/EEC) in southern Tuscany, showed 57 and 64 species. The most significant species for conservation value and interesting because they are not so common elsewhere in southern Tuscany are Zerynthia cassandra (Geyer, [1828]), Cupido argiades (Pallas, 1771), Apatura ilia ([Denis & Schiffermüller], 1775) e Nymphalis antiopa (Linnaeus, 1758). The carrying out of late mowing of the herbaceous vegetation (in October-November) carried out in rotation on plots of reduced surface area alternating over the years and the monitoring of the species are fundamental measures for ensuring the survival of the rhopaloceran fauna of the Lago di Montepulciano and Lago di Chiusi, in particular of the populations of Zerynthia cassandra (Geyer, [1828]), few in number in Chiusi and probably declining in numbers in Montepulciano
Località di raccolta inedite di Satyrium w-album (Knoch, 1782) in Toscana
No full textThe new records relate to twenty-two localities, eight of which are in the province of Siena, four in the province of Grosseto, three of Arezzo and Florence, two of Massa Carrara, one of Livorno and one of Pisa. The localities are located inside or at the edge of wooded areas, from a minimum of 45 m to a maximum of 915 m above sea level. The flight period is between the second fortnight of May and the first fortnight of August, with a maximum of observations in June (59,1% of cases). Since it is an uncommon species that lives in habitat in progressive alteration by humans, S. w-album is
believed to be threatened in Tuscany
Le praterie xerocalcicole della Toscana meridionale, habitat di rilevante interesse per la fauna a Ropaloceri
No full textWe studied the Lepidoptera Rhopalocera of calcareous grasslands of southern Tuscany, habitats of community interest in conservation priorities in accordance with Directive 92/43/EEC. Were examined six areas in the provinces of Livorno (Monte Calvi), Siena (Le Cornate and Monte Cetona) and Grosseto (Monte Calvo, Le Cornate, Monte Labbro and Monte Civitella) with significant extensions of grasslands (> 15 ha). The study showed that these grasslands are important areas for lepidotterofauna hosting 108 species of which 25 (23.1%) of conservation interest. In particular the Monte Calvo, Le Cornate, Monte Labbro, Monte Cetona and Monte Civitella are distinguished by 156 the presence of rich populations of “target species” Maculinea arion (Linné, 1758) and Melanargia arge (Sulzer, 1776) justifying their inclusion among the “Prime Butterfly Areas”. Even xerocalcicole grasslands of southern Tuscany as European ones are gradually reducing, and in few years could disappear. For their maintenance is suggested the application of management standards including: the recovery of extensive grazing and planning by calculating the “carrying capacity”; alternating grazing areas with annual rest areas; mowing the grass vegetation through haymaking diluted over time of limited surfaces; the reduction of herbaceous vegetation by means of controlled winter burns; the limitation of the development of shrubs through periodic cuts
Pyrgus sidae (Esper, [1784]) in Toscana
No full textReports published between 1869 and 2023 and unpublished records collected between 1971 and 2023 suggest that Pyrgus sidae (Esper, [1784]) is a rare species with a restricted distribution in Tuscany. Indeed, it is only known from about twenty sites in 17 10x10 UTM squares which are reduced to 9 if only those covered with reports relating to the period 2000-2023. It lives from 70 m of 1029 m and flies between the first half of May and the first half of July. It frequents pastures and permanent meadows and above all xeric prairies, habitats of community interest and priority pursuant to Directive 92/43/EEC. To know the actual distribution of this species in Tuscany it is necessary to sample more accurately the central north of the region and confirm its presence in the localities where it was ascertained before 2000, in particular in those where it was collected between the second half of 1800 and the first half of the 1900s
I Ropaloceri del Monte Amiata (Toscana)
No full textTwenty five years of research (1994-2019) on the rhopaloceran fauna of the Monte Amiata, integrated with bibliographical sources, showed 89 species. The most numerous species are those that live in the forests, those linked to the edges of the woods and those that prefer high-hill and mountain areas. The most significant species for conservation value, biogeographical interest and because they are not so frequent elsewhere in Tuscany and in Italy, are Hamearis lucina (Linnaeus, 1758), Satyrium w-album (Knoch, 1782), Cupido argiades (Pallas, 1771), Argynnis pandora ([Denis &
Schiffermüller], 1775) and Brenthis hecate ([Denis & Schiffermüller], 1775)
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