Filippi, L.

Fontana, P.

Malagnini, V.

Pedrazzoli, F.

Vettorazzo, E.

Zanotelli, L.

English

Archivio istituzionale della ricerca - Fondazione Edmund Mach

Naturalista sicil., S. IV, XLVII (1), 2023, pp. 213-215PAOLO FONTANA, LIVIA ZANOTELLI, VALERIA MALAGNINI,FEDERICO PEDRAZZOLI, ENRICO VETTORAZZO & LUCIANO FILIPPIA SURVEY ON THE APOIDEA ANTHOPHILAOF THE DOLOMITI BELLUNESI NATIONAL PARK(VENETO, NORTH-EASTERN ITALY)Un’indagine sugli Apoidea anthophila del Parco Nazionaledelle Dolomiti Bellunesi (Veneto, Italia Nord Orientale)The results of the research on the Apoidea anthophila of the DolomitiBellunesi National Park, even if limited to only two areas of its southern por-tion (Monte Grave and Vette Feltrine), allowed the identification of 67species. Among these 67 species, a species of the genus Bombus, differentfrom the others found, has not been identified at a specific level. In the pres-ent study, Apis mellifera was also considered, although in general this speciesis considered as a component foreign to the native fauna, but as confirmed bySan Michele all’Adige Declaration it must be considered as a wild species(FONTANA et al., 2018). The honey bee specimens collected during the sam-pling constituted more than a third of the total bees collected and most like-ly derive from hives nearby managed by beekeepers. We anyway decided toevaluate their presence for their ecological service on wild vegetation. With-in the 66 non Apis species detected, only 20 were collected with at least 10specimens while as many as 28 species were collected with a single specimen.This data confirms the effectiveness of the sampling method adopted, capa-ble of identifying even the species present with very rarefied populations orpresent for a short time. Another factor that should be mentioned in the pres-ent study is the altitude range at which most of the collections were made,mostly between 1000 and 2000 m. Most likely, by carrying out research inlower ranges, the number of species significantly increases as was highlightedin a recent publication based on these same data (SOMMAGGIO et al., 2022). The samplings were carried out in two altitudinal transepts identified byDOI: https://doi.org/10.5281/zenodo.8165281the same park authority, one on Monte Grave and another called Vette Fel-trine. The first is made up of 3 plots (between 1080 and 1375 m a.s.l.), whilethe second comprises 8 plots (between 780 and 2130 m a.s.l.).In each plot, 5 sampling points were selected; in each sampling point, astake was placed, each one supporting 3 white bowls (diameter: 30 cm;height: 5 cm), at about 60 cm from the ground, at similar level than most flow-ers. The inside of bowls was painted blue, white, or yellow UV-reflectingpaints (Sparvar Leuchtfarbe, Spray-Color GmbH, Merzenich; item numbers3107, 3108, 3104, respectively) (WESTPHAL et al., 2008). The five samplingpoints were set at 25 m along the diameter of the plot. The samplings were conducted from May to September on a monthlybasis, compatibly with the possibility of reaching the sites due to the weatherconditions. Once the samples were received in the laboratories of theEdmund Mach Foundation, the specimens belonging to Apoidea anthophilawere sorted and adequately prepared and labeled to make the subsequentidentification phase possible. For the identification of five specimens of Bom-bus (Apidae), for which morphological characters were not informative,molecular identification was carried out, using cytochrome oxidase gene(COI).Molecular analysis made it possible to identify 2 species that had notresulted from the identification on a morphological basis: Bombus(Alpigenobombus) wurflenii Radoszkowski, 1859 and Bombus (Kallobombus)soroeensis (Fabricius, 1777). Furthermore, it has been established that thespecimens belonging to the an unidentified Bombus species must to be con-sidered B. soroeensis. The analysis also revealed that some specimens identi-fied ad Bombus terrestris, examined while showing a non-classical chroma-tism, belong to B. soroeensis and to B. wurflenii Radoszkowski, 1860.Molecular analyzes also confirmed the identification of the only collectedspecimen of Psithyrus (Ashtonipsithyrus) bohemicus Seidl, 1838.In total, 1363 Apoidea anthophila specimens and 67 species were col-lected and identified: 23 species of Apidae (including Apis mellifera), 11species of Megachilidae, 12 species of Andrenidae, 17 species of Halictideand 4 species of Colletidae.In the red list of European Apoidea anthophila (NIETO et al., 2014) 1942species are registered and each of them is assigned, an IUCN category. To 65on 67 species sampled during this research in the Dolomiti Bellunesi Nation-al Park one these categories was assigned. The two excluded species are obvi-ously the unidentified Bombus and Psithyrus (Allopsithyrus) maxillosus (Klug,1817) which strangely is not treated in the European red list. Of the 65 speciessurveyed, 47 are at low conservation risk (LC), 14 are those for which thereare insufficient data (DD), 3 are possibly threatened (NT) and only one214 FONTANA, ZANOTELLI, MALAGNINI, PEDRAZZOLI, VETTORAZZO & FILIPPIthreatened (EN). The three possibly threatened species are Andrena (Chari-tandrena) hattorfiana (Fabricius, 1775), Andrena (Taeniandrena) ovatula(Kirby, 1802) and Lasioglossum (Evylaeus) lateiceps (Schenck, 1870) while thethreatened species is only Bombus (Thoracobombus) inexpectatus Tkalcu,1963. The latter is a parasitic and rare species, with geographically separatedpopulations, especially in the Alps, where it lives at high altitude. It is con-sidered a threatened species due to climatic changes that could significantlydecrease its host species.Aknowledgements — We thank Giovanni Timossi (World Biodiversity Association onlus) forthe management of the transepts and the collection of specimens.REFERENCES FONTANA P., COSTA C., DI PRISCO G., RUZZIER E., ANNOSCIA D., BATTISTI A., CAODURO G., CARPA-NA C., CONTESSI A., DAL LAGO A., DALL’OLIO R., DE CRISTOFARO A., FELICIOLI A.,FLORIS I., FONTANESI L., GARDI T., LODESANI M., MALAGNINI V., MANIAS L., MANI-NOA., MARZIG., MASSA B., MUTINELLI F., NAZZI F., PENNACCHIO F., PORPORATOM.,STOPPAG., TORMEN T., VALENTINIM. & SEGREA., 2018. Appeal for biodiversity pro-tection of native honey bee subspecies of Apis mellifera in Italy (San Michele all’Adi-ge declaration). Bull. Insectol., 71 (2): 257-271.NIETO A., ROBERTS S.P. M., KEMP J., RASMONT P., KUHLMANN M., GARCÍA CRIADO M., BIESMEIJERJ.C., BOGUSCH P., DATHE H.H., DE LA RÚA P., De MEULEMEESTER T., DEHON M.,DEWULF A., ORTIZ-SÁNCHEZ F.J., LHOMME P., PAULY A., POTTS S.G., PRAZ C., QUAR-ANTAM., RADCHENKOV.G., SCHEUCHL E., SMIT J., STRAKA J., TERZOM., TOMOZII B.,WINDOW J. & MICHEZD., 2014. European Red List of Bees. Publications Office of theEuropean Union, 86 pp.SOMMAGGIO D., ZANOTELLI L., VETTORAZZO E., BURGIO G. & FONTANA P., 2022. Different Distri-bution Patterns of Hoverflies (Diptera: Syrphidae) and Bees (Hymenoptera:Anthophila) along Altitudinal Gradients in Dolomiti Bellunesi National Park (Italy).Insects, 13: 293, https://doi.org/10.3390/insects13030293WESTPHAL C., BOMMARCO R., CARRÉ G., LAMBORN E., MORISON N., PETANIDOU T., POTTS S.G.,ROBERTS S.P.M., SZENTGYÖRGYIH., TSCHEULIN T., VAISSIÈRE B.E., WOYCIECHOWSKIM., BIESMEIJER J.C., KUNIN W.E., SETTELE J. & STEFFAN-DEWENTER I., 2008. Meas-uring bee diversity in different European habitats and biogeographical regions. Ecol.Monogr., 78(4): 653–671.Authors’ Address — P. FONTANA, L. ZANOTELLI, V. MALAGNINI, F. PEDRAZZOLI, Fonda-zione Edmund Mach di San Michele all’Adige, Via E. Mach, 1 – 38098 S. Michele all’Adige (Tren-to, I), email: paolo_api.fontana@fmach.it; E. VETTORAZZO, Dolomiti Bellunesi National Park –32032 Feltre (Belluno, I), email: e.vettorazzo@dolomitipark.it; L. FILIPPI, Via Napoli, 80 – 57023Cecina (Livorno, I), email: luciano.filippi6@tin.it215A survey on the Apoidea anthophila of the Belluno Dolomites ...

A survey on the apoidea anthophila of the Dolomiti Bellunesi National Park (Veneto, North-Eastern Italy)

https://openpub.fmach.it/bitstream/10449/81981/1/2023%20NS%20Fontana%20213-215.pdf

A survey on the apoidea anthophila of the Dolomiti Bellunesi National Park (Veneto, North-Eastern Italy)

Abstract

Similar works

Full text

Available Versions

Archivio istituzionale della ricerca - Fondazione Edmund Mach