Short Communication |
Corresponding author: Laura Bevacqua ( laura.bevacqua@outlook.it ) Academic editor: Maria Grazia Mazzocchi
© 2023 Laura Bevacqua, Giada Zucco, Kevin Garofalo, Innocenzo Muzzalupo, Stefano Scalercio.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Bevacqua L, Zucco G, Garofalo K, Muzzalupo I, Scalercio S (2023) Lost in hostile lands: moths of conservation concern in cultivated and suburban areas of south Italy. Nature Conservation 54: 203-215. https://doi.org/10.3897/natureconservation.54.108425
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Cultivated and suburban areas are usually considered unfavourable to the vulnerable components of biodiversity and regarded as not interesting from a conservation point of view. However, remnants of semi-natural vegetation can be embedded in such areas, becoming possible refuges for wild biodiversity despite the high anthropogenic pressures. With the present study, we raise awareness that, in some cases, these areas can be regarded as biodiversity treasure chests, even when apparently poor and with low appeal for conservationists. We demonstrate the importance of urbanised and cultivated landscapes by providing new records of two lepidopteran species rare for the Italian Peninsula, namely Amphipyra (Pyrois) cinnamomea and Boudinotiana notha. The European range of A. cinnamomea has become strongly reduced, seeming extinct in some Central European regions and the few Italian records mostly date back several decades. B. notha has very few relict populations in Mediterranean Europe, some of which are in peninsular Italy, where it is threated by urbanisation and reduced precipitations expected in the next decades. Our findings confirm the importance of small and highly fragmented patches of semi-natural vegetation for biodiversity conservation, as they can allow species of conservation interest to persist in hostile lands.
Amphipyra cinnamomea, biodiversity, Boudinotiana notha, habitat fragmentation, Lepidoptera
Unveiling the role of non-protected areas in sustaining wild diversity is crucial for biodiversity conservation, as, in most cases, natural parks are surrounded by cultivated lands that represent a barrier to wild diversity (
During the last decades, knowledge on lepidopteran diversity has increased in Calabria, the southernmost region of peninsular Italy, thanks to several monitoring programmes of forested habitats carried out mostly within natural and protected areas (
The complexity of the Calabria territory favours the frequent records of Lepidoptera every time that a new type of habitat is surveyed through monitoring activities (
The aim of the present study is to demonstrate that suburban environments that are cultivated and/or subject to anthropogenic interventions can host species richness similar to natural habitats and are, therefore, worthy of attention and protection. The important role of semi-natural vegetation patches in sustaining wild pollinators is confirmed in this paper by new findings of lepidopteran species in a hilly olive grove surrounded by semi-natural vegetation and in a suburban area. During 2022, we found the night-active Noctuidae Amphipyra (Pyrois) cinnamomea (Goeze, 1781), whose populations are declining across Europe (
The sampling sites are located within the Crati Valley, one of the largest plains in the Calabria Region (Fig.
Location of study area. Collecting sites of Amphipyra cinnamomea (red and white squares) and Boudinotiana notha (blue and white squares) are indicated. Aerial photographs (Google Earth) illustrate the landscape composition around the collecting sites at two different spatial scales.
Diurnal sampling of B. notha was done by net in a suburban area near the Research Centre for Forestry and Wood, where urbanised and cultivated lands are dominant and the semi-natural vegetation is mostly represented by remnants of riparian forests. The findings occurred during a monitoring activity of butterflies near an Italian Butterfly Monitoring Scheme transect (https://butterfly-monitoring.net/ebms). One was spotted on the ground, captured and brought to the laboratory for identification. After this first occasional finding on 10 March 2022, daily surveys were organised to find new specimens. However, no other individuals of this species were found despite the occurrence of sunny days optimal for the flight activity of adults (
Calabria: Coppone (Altomonte Municipality, Cosenza Province) 39.689°N, 16.115°E, 5.VII.2022 (1 male), 19.VII.2022 (1 male).
Two adult male specimens, newly emerged, (Fig.
Amphipyra (Pyrois) cinnamomea. specimens collected during the present study (Coppone, Altomonte, Cosenza) a male, wingspan: 45 mm (19.VII.2022) b male, wingspan: 48 mm (5.VII.2022).
Other studies report adults from the beginning of spring-time (
A. cinnamomea is considered a Mediterranean species extinct north of the Alps since 2007 (
Amphipyra (Pyrois) cinnamomea is recorded from Andorra, Austria, Bosnia and Herzegovina, Bulgaria, Corsica, Croatia, French mainland, Germany, Greek mainland, Hungary, Italian mainland, North Macedonia, Romania, Slovenia, Spanish mainland, Switzerland, Serbia, Montenegro and doubtfully from Sardinia and Slovakia (
Valle d’Aosta: Vens, Aosta, 1850 m elev., 16.IX.1989 (1 ex.) (
Piemonte: Alpi, Northern Savoia, luglio-agosto (
Emilia: Bologna Botanic Garden, summer, 1 larva (
Toscana: Collelungo, Parco Regionale della Maremma, Grosseto, VIII.2003 (1 ex.) (
Umbria: San Faustino, Terni, 4.X.1970 (1 ex.) (
Abruzzo: San Potito, L’Aquila, 10.VIII.1958 (1 ex.), 9.X.1972 (1 ex.) (
Puglia: Pianelle, Taranto, 350–450 m elev., 2.VI (1 male) (
Sardegna: (
Calabria: Contrada Rocchi (Rende, Cosenza Province), 39.3675°N, 16.2282°E, 10.III.2022 (1 male).
Collected specimen of Boudinotiana notha: Contrada Rocchi, Rende, Cosenza, 10.III.2022, male, wingspan: 32 mm.
In Calabria, Boudinotiana notha was found in a suburban area demonstrating that it can survive also where only remnants of riparian forest grow (Fig.
Calabrian collection site of Boudinotiana notha. Blue and white square indicates the collecting point, where the specimen was found resting on the soil. Photo: Giuseppe Rijllo.
Several records are available from web platforms of citizen science, whereas published data are very scarce in Italy. It was commonly found from the Po Valley to the Alps, in Piemonte and Lombardia and scattered records are reported from Alpine areas in other regions, with the exclusion of Valle d’Aosta. It is very rare in peninsular Italy where it was recorded in a small area of Tuscany, in one locality of the Circeo National Park in Lazio and in a lowland forest in Puglia (Fig.
Boudinotiana notha can be found mostly in Europe and in part of Asia, in particular Russia and Japan (GBIF.org). In Europe, it occurs in the central-eastern part of the continent, specifically Austria, Belarus, Belgium, United Kingdom, Bulgaria, Croatia, Czechia, Danish mainland, European Russia, Estonia, European Turkey, Finland, French mainland, Germany, Hungary, Kaliningrad Region, Latvia, Lithuania, Luxembourg, Norwegian mainland, Poland, Romania, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland, The Netherlands and Ukraine (
Piemonte: Eremo, Torino (Giorna 1791–1793); Località Madonnina, Brignano Frascata, Alessandria, 3.III.1997 (
Lombardia: Colli di San Fermo, Bergamo, mid-March-May (
Trentino: Südtirol (
Alto Adige: Ulten (
Veneto: Valdastico, Vicenza, 24.III.2010 (2 males), recorded by Archimede24 (naturamediterraneo).
Friuli: San Leonardo, Udine, 150 m, 12.III.1994 (1 maschio), C. Morandini leg. (
Venezia Giulia: Strazig, Gorizia, 8.III (1 es.) (
Emilia-Romagna: Modena, 24.III.2010 (1 ex.), recorded by Enrico Ferrari (naturamediterraneo).
Toscana: Torniella, Torrente Farma, Grosseto, 300 m elev., 2.IV.1991 (1 femmina) (
Lazio: Parco Nazionale del Circeo, foresta planiziale, 24.III.1995 (1 male) (
Puglia: Torre Fantine, Chieuti, Foggia, 27-II-2002 (1 female), T. Cicerale leg. (
Our findings confirm the great importance for diversity conservation of semi-natural habitats imbedded within cultivated and urbanised areas. They can represent either primary habitats where the species can complete their biological cycle or corridors enabling the dispersal of species across unsuitable habitats. During our study, we recorded only males, which are usually better fliers than females. This observation led us to hypothesise a primary role of corridors for such remnants, but we cannot exclude the role of primary habitat at least for Boudinotiana notha as its larvae feed on trees characterising its sampling site. The finding of one specimen only makes necessary an ad-hoc monitoring programme to clarify the role of semi-natural remnants for this species, as well as its range and its population size in the Crati Valley.
Even though our conclusions are based on three specimens only, they refer to very rare species for which also the finding of one specimen is of great importance and deserves to be valorised. In fact, our findings represent the second specimen of B. notha and the second and the third specimens of Amphipyra cinnamomea ever found in south Italy. As suggested by the high number of records concerning the day-active B. notha in north Italy deriving from citizen’s observations, B. notha in south Italy can be considered very rare and its populations threatened by increasing anthropogenic and climate pressures. On the other hand, the lack of data deriving from citizen’s observations concerning the night-active A. cinnamomea could be due to both its rarity and its low detectability also when light traps were used. In fact, it might be better surveyed using sugar-based baits as observed for congeneric species, but there is no evidence of this.
In addition, our records also highlight the need for implementation of monitoring programmes of wild diversity in non-natural areas as well as the need of protection for the remnant patches of semi-natural habitats for both the diversity of species having restricted habitat preferences, as B. notha and A. cinnamomea documented here and for the maintenance of ecosystem services. The implementation of monitoring programmes with a variety of sampling methods can certainly help to better define the areas of species occurrence and abundance. Moreover, scientific programmes can be profitably integrated by citizen science, which contribute to refine the species distribution patterns, as demonstrated by data concerning B. notha for which literature data are very scarce.
This study was carried out within the Agritech National Research Center and received funding from the European Union Next-GenerationEU (PIANO NAZIONALE DI RIPRESA E RESILIENZA (PNRR) – MISSIONE 4 COMPONENTE 2, INVESTIMENTO 1.4 – D.D. 1032 17/06/2022, CN00000022). This manuscript reflects only the authors’ views and opinions, neither the European Union nor the European Commission can be considered responsible for them. This work was also funded by the following projects: “—ALIVE” MIPAAF D.M. 93880/2017; “MICROLIVE: Miglioramento della rIzosfera in oliveti pilota e valorizzazione di due nuove CultivaR di OLIVE da tavola (‘Rossa di Sicilia’ e ‘Dolce di Sicilia’)” PSR Calabria 2014–2020 – Misura 16.02.01– Sviluppo di nuovi prodotti, pratiche, processi e tecnologie nel settore agroalimentare e forestale.
The authors have declared that no competing interests exist.
No ethical statement was reported.
Agritech National Research Center European Union Next-GenerationEU (PIANO NAZIONALE DI RIPRESA E RESILIENZA (PNRR) – MISSIONE 4 COMPONENTE 2, INVESTIMENTO 1.4 – D.D. 1032 17/06/2022, CN00000022) ALIVE” MIPAAF D.M. 93880/2017 MICROLIVE: Miglioramento della rIzosfera in oliveti pilota e valorizzazione di due nuove CultivaR di OLIVE da tavola (‘Rossa di Sicilia’ e ‘Dolce di Sicilia’)” PSR Calabria 2014–2020 – Misura 16.02.01– Sviluppo di nuovi prodotti, pratiche, processi e tecnologie nel settore agroalimentare e forestale..
LB, GZ, SS write the manuscript; KG, IM supported field surveys; IM, SS conceived the study; LB, GZ, KG, SS data analysis; LB, GZ studied references.
Laura Bevacqua https://orcid.org/0000-0001-5226-2684
Giada Zucco https://orcid.org/0009-0000-1119-5737
Kevin Garofalo https://orcid.org/0009-0006-8759-1449
Innocenzo Muzzalupo https://orcid.org/0000-0002-0264-1392
Stefano Scalercio https://orcid.org/0000-0002-5838-1315
All of the data that support the findings of this study are available in the main text.