Western barbastelle

The western barbastelle was described as a new species in 1774 by Johann Christian Daniel von Schreber, who placed it in the genus Vespertilio, with a species name of Vespertilio barbastellus. The holotype had been collected in Burgundy, France. In 1836 it was placed in the genus Barbastellus, and the first use of its current name combination of Barbastella barbastellus was in 1897 by Gerrit Smith Miller Jr. The name Barbastella barbastellus might be coming from the Latin barba (beard) and stella (star). Viewed from the side, it seems that the upper lip has a beard, or a moustache.Rydell J. & Bogdanowicz, W. 1997.

Two subspecies are recognized by Mammal Species of the World (2005):{{MSW3| id=13802130}}

• Barbastella barbastellus barbastellus: distributed from western Europe until the Caucasus, with isolated populations in Morocco
• Barbastella barbastellus guanchae: only found in the islands of Tenerife and La Gomera, Canary Islands, SpainTrujillo, D. et al. 2002.

In addition to morphological measurement, DNA analysis confirmed the presence of an endemic sub-species in the Canary Islands as well as a relatively homogeneous genetic structure among populations of the Iberian Peninsula and Morocco, and probably, across Europe as far as the Thrace region.Juste, J. et al. 2003.

The barbastelle is a medium-sized bat, with a characteristic pug-shaped nose. The ears are broad, joined across its head by skin, and covered in gingery-brown fur on the rear surface. The tragus is triangular – broad at the base but with a nearly parallel tip which starts about halfway along its length. Head and body length is between 40 and 55 mm and wingspan is between {{cvt|26|and|29|cm}}. Forearm length is {{cvt|3.5|to|4.5|cm}} and body mass is {{cvt|6|to|13|g}}.Aulagnier, S et al. 2010Batlife Europe. 2020

File:A history of British mammals (Plate XVI) (6383354359).jpg

Barbastelles roost in splits or behind loose bark of trees all year, generally in mature deciduous forests, as well as rock crevicesSierro, A. 1999. and within human buildings. In central Italy, tall dead beech in unmanaged woodland were found to be preferred as roost trees.Russo, D. et al. 2004 While barbastelles typically remain within a single roosting area, they move between individual roosts with great frequency.

Barbastelles migrate to underground roosting sites over the winter, although they may stay within arboreal roosts in the beginning of the season. Winter roosting sites include natural caves and human structures such as basements, mines and bunkers. Barbastelles are relatively resistant to cold conditions, and are typically found hibernating in cold sites and in exposed positions.{{Cite web |title=Barbastelle bat |url=https://cdn.bats.org.uk/pdf/About%20Bats/barbastelle_11.02.13.pdf?mtime=20181101151250 |publisher=Bat Conservation Trust |access-date=3 February 2019 |archive-date=27 April 2021 |archive-url=https://web.archive.org/web/20210427180114/https://cdn.bats.org.uk/pdf/About%20Bats/barbastelle_11.02.13.pdf?mtime=20181101151250 |url-status=dead }}

Barbastelles feed chiefly on moths, as well as on flies.Rydell, J. et al. 1996. Research from Switzerland showed that the biologically most productive parts of the forest are exploited in priority by this species while hunting and that ca. 99% of prey by volume consisted of Lepidoptera. More recent studies confirmed this predominance of Lepidoptera, underlining that medium-sized and larger specimens are targeted in priority by the barbastelles. However, seasonal diet changes were recorded during autumn due to potential interspecific competition with Plecotus austriacus and strong decrease of flying larger moths.Andreas, M. et al. 2012.

The diet of the barbastelles appears to be one of the narrowest among European bats. This specialization in foraging habits probably points to a higher vulnerability of this species to negative changes in the abundance of moth populations. This could explain its current rarity throughout most of its range.Sierro, A. & Arlettaz, R. 1997.

While foraging, barbastelles behave as typical aerial-hawking bat species despite the fact that they hunt exclusively just above the forest canopy. This peculiar foraging technique could be explained by the co-evolution with the defence system of its prey.

Specimens can travel up to 20 km per night for foraging purposes and nonreproductive females forage at greater distances than reproductive females Zeale, M. R. et al. 2012.

Individuals reach their sexual maturity after one or two years. After total sexual segregation during most of spring and summer, the mating period starts at the end of summer, sometimes during swarming episodes. The mating period is often finishing with the start of the hibernation, but some cases of late mating during winter and early spring have been observed{{Cite web |title=La Barbastelle |url=https://inpn.mnhn.fr/docs/cahab/fiches/1308.pdf |publisher=Museum National d'Histoire Naturelle |access-date=15 June 2020}}

Around May–June, each pregnant female gives birth to one or two newborn juveniles which she breastfeeds up to 6 weeks.Dietz, C. et al., 2009

The barbastelle has two main call types used for echolocation. The frequency parameters of call type 1 lie between 30 and 38 kHz, have most energy at 33 kHz and have an average duration of 2.5 ms. The frequency parameters of call type 2 lie between 29 and 47 kHz, have most energy at 38 kHz and have an average duration of 4.1 ms.Parsons S. & Jones G. 2000.Obrist et al. 2004.Denzinger, A. et al., 2001

This species is rare and most of the time decreasing throughout its range. Some historical data from the 19th century Rochebrune, A.T. 1883. refers to the presence of western barbastelles in Senegal. This data is considered as doubtful.

;Albania: So far, only four specimens of this species were recorded in Albania. The specimens were caught in 2005 near the Shebenik-Jabllanicë National Park, close to the border with North Macedonia.Sachanowicz, K. et al. 2016. This national park is well known for its beech forest, part of the UNESCO site "Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe".Théou, P. & Bego, F. 2018.

;Belgium: Barbastelle bats are known to occur within the Sonian Forest of Belgium.{{cite web |url=http://www.sonianforest.be/animals-and-plants/animals-plants/ |publisher=zoniënwoud |title=Mammals |access-date=2018-01-20 |archive-date=13 June 2019 |archive-url=https://web.archive.org/web/20190613091253/http://www.sonianforest.be/animals-and-plants/animals-plants/ |url-status=dead }}

;Ireland: This species was reported in 1997 from the west coast of Ireland, based on echolocation calls. Recent surveys and researches assessed this data and concluded to a mis-identification of the echolocation calls, and the absence of this species from the island of Ireland.Buckley, D. J. 2011.

;Montenegro: The species is present during summer in both Mediterranean and Alpine biogeographic region of Montenegro, on altitudes as low as 80 m and up to 1.700 m a.s.l.Pašić, J. & Mulaomerović, J. 2018.Rachwald, A. et al. 2019.

;Netherlands: The barbastelle has been extinct in the Netherlands since 1984.

;Norway: It was considered extirpated in Norway, having only been sighted in 1896, 1911, 1913 and 1949. However, it was again found in 2004 and 2008.{{cite news|title=Hemmelighetskremmeri om "utdødd" flaggermus |author=NTB |date=22 April 2008 |access-date=2008-04-22 |language=no |url=http://www.aftenposten.no/viten/article2384356.ece |url-status=dead |archive-url=https://web.archive.org/web/20080917020921/http://www.aftenposten.no/viten/article2384356.ece |archive-date=2008-09-17 }}

;United Kingdom: In Britain, only a few breeding roosts are known; Paston Great Barn in Norfolk, parts of Exmoor and the Quantock Hills in Devon and Somerset (see Tarr Steps), Wimpole Wood in Cambridgeshire, the Mottisfont woodland in Hampshire and Ebernoe Common in West Sussex. The UK distribution can be found on the National Biodiversity Network website [https://data.nbn.org.uk/Taxa/NHMSYS0000080178/Grid_Map here].[http://www.jncc.gov.uk/protectedsites/sacselection/species.asp?FeatureIntCode=S1308 Barbastella barbastellus], Joint Nature Conservation Committee, retrieved on 1 September 2008.

This species is protected in the European Union under the Habitats Directive, meaning that habitats and roosts use by this species may be considered for notification as a Site of Special Scientific Interest. This species is also listed in the Berne Convention and is specifically targeted by the UNEP-EUROBATS convention. Several national legislation are also protecting this species and its habitats in many countries and regions.

In order to highlight the importance of protecting this species at the European scale, this species was selected as bat species of the Year 2020-2021 by the pan-European NGO BatLife Europe.{{cite web |url=https://www.batlife-europe.info/projects/bat-of-the-year// |title=BatLife Europe Bat of Year |author=|website=batlife-europe.info |access-date=3 March 2020}}

This species is classified as near threatened (NT) in the worldwide IUCN Red List, while it is considered as vulnerable (VU) at the European and European Union scale Temple, H.J. & Terry, A. 2007. and near threatened (NT) in the Mediterranean Red List.Temple, H.J. & Cuttelod, A. 2009.

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{{Commons category|Barbastella barbastellus}}

• [https://web.archive.org/web/20060619205942/http://www.arkive.org/species/ARK/mammals/Barbastella_barbastellus/ ARKive page about barbastelles]
• [http://www.forestry.gov.uk/forestry/INFD-6K3CXY Woodland Management For Bats Guide] {{Webarchive|url=https://web.archive.org/web/20130319132917/http://www.forestry.gov.uk/forestry/INFD-6K3CXY |date=19 March 2013 }}
• [http://www.batslife.eu/item/barbastella-barbastellus/ Barbastella barbastellus - Science for Nature Foundation]
• [https://web.archive.org/web/20080929151501/http://www.worlddeer.org/britishbats/barbastelle.html www.worlddeer.org/britishbats/barbastelle]
• [https://batslife.eu/item/barbastella-barbastellus/ Western Barbastelle Bat (Science For Nature Foundation)]

{{Vespertilionidae|V.|Pl.}}

{{Taxonbar|from=Q215907}}

Category:Barbastella

Category:Mammals of Russia

Category:Bats of Europe

Category:Mammals of Turkey

Category:Mammals of Azerbaijan

Category:Mammals of the Middle East

Category:Mammals of North Africa

Category:Mammals of the Canary Islands

Category:Mammals described in 1774

Category:Taxa named by Johann Christian Daniel von Schreber

Category:Habitats Directive species