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helminth parasites in some spanish bats.nineteen bats of the species rhinolophus ferrumequinum, r. hipposideros, myotis myotis, m. nattereri, pipistrellus pipistrellus, barbastella barbastellus, eptesicus serotinus and plecotus auritus captured in n. w. spain in 1983-85 were found to contain the following helminth parasites: mesotretes peregrinus (found in 4 host species and making up 31% of all helminths); plagiorchis vespertilionis (10.5%, in 2 host species); strongylacantha glycirrhiza, molinostrongylus alatus, molineidae gen. sp., ...19911822047
an immunohistochemical study of gut endocrine cells in two species of insectivorous vespertilinid bats (chiroptera: pipistrellus abramus and plecotus auritus sacrimontis).11 endocrine cell types immunoreactive for either 5-hydroxytryptamine (5-ht), somatostatin, gastrin, cholecystokinin (cck), gastric inhibitory peptide (gip), motilin, secretin, neurotensin, pancreatic glucagon, enteroglucagon or bovine pancreatic polypeptide (bpp) were found in gastrointestinal tract of 2 species of insectivorous bats. 5 of these 11 types of endocrine cells were located in the stomach and all 11 types of endocrine cells were found in the intestine. however, the distribution and ...19883402710
turning flight of bats.the turning flight of six microchiropteran bat species is described. the bats' abilities to turn tightly were determined by their abilities to fly slowly and to generate high lateral accelerations. rhinolophus ferrumequinum developed high lateral accelerations by flapping its banked wings while flying at very low speed. plecotus auritus turned at relatively low speed and at low lateral acceleration. the other species were all moving fast as they turned and generated lateral accelerations either ...19873559468
[lissavirus in bats residing in the south of west siberia].we caught, 2002-2003 in caves of novosibirsk region and altai territory, 52 bats (myotis daubentoni, myotis brandtii, murina leucogaster, plecotus auritus). examinations of the animals' brain samples by fluorescence antibody microscopy and rt-pcr revealed lyssaviruses, genotype 1, which were close to strains provoking rabies in the local animals. according to the results, bats can be involved in keeping alive the rabies foci in western siberia, which must be taken into account in antiepizootic m ...200515747869
whartonia (fascutonia) natsumei (acari: trombiculidae): a new bat chigger collected from plecotus auritus (chiroptera: vespertilionidae) in japan, with host and distribution records of the genus whartonia.we describe and illustrate a new bat chigger, whartonia (fascutonia) natsumei takahashi, takahashi & kikuchi n. sp., ex. plecotus auritus (linnaeus, 1758), from japan, and summarize the host and distribution records of the chiggers of the genus whartonia ewing, 1944. with the description of a new species here, the number of whartonia species increases to 40 composed of 22 species from asia, 14 from north and south america in addition to central america, and four from africa.200616619590
[species structure and dynamics of bat communities (chiroptera: vespertilionidae) hibernating in artificial caves of samara luka].long-term data on the composition and absolute and relative abundance of eight bat species hibernating in artificial caves of samara luka are considered. about 13,000 hibernating individuals are annually accounted there. the relative abundance of the species decreased in the following order: myotis brandtii (35%), plecotus auritus (20%), m. daubentonii (13%), m. mystacinus (13%), eptesicus nilssonii (8%), m. dasycneme (8%), and m. nattereri (2%). singular e. serotinus were recorded not every yea ...200718038628
[spatial structure of the community of bats (chiroptera: vespertilionidae) hibernating in artificial caves of samarskaya luka].specific features of the spatial distribution and localization of bats have been studied during their hibernation in artificial caves of samarskaya luka. the proportion of cave area occupied by bats varies from 70 to 93% in large caves (> 60000 m2), decreasing to 50% in medium-sized caves (10000-60000 m2) and to less than 30% in small caves (< 10000 m2). approximately 9% of bats choose sites near cave openings, up to 25% prefer central parts, but most bats (about 66%) concentrate in the deepest ...200818946997
comparative chromosome painting of four siberian vespertilionidae species with aselliscus stoliczkanus and human probes.vespertilionidae is the largest chiropteran family that comprises species of different specialization and wide geographic distribution. up to now, only a few vespertilionid species have been studied by molecular cytogenetic approaches. here, we have investigated the karyotypic relationships of 4 vespertilionidae species from siberia by g-banding and comparative chromosome painting. painting probes from aselliscus stoliczkanus were used to establish interspecific homologous chromosomal segments i ...201121709413
frequency sensitivity and directional hearing in the gleaning bat, plecotus auritus (linnaeus 1758).1. the neural audiogram of the common long-eared bat, plecotus auritus was recorded from the inferior colliculus (ic). the most sensitive best frequency (bf) thresholds for single neurones are below 0 db spl between 7-20 khz, reaching a best value of -20 db spl between 12-20 khz. the lower and upper limits of hearing occur at 3 khz and 63 khz, respectively, based on bf thresholds at 80 db spl. bf threshold sensitivities are about 10 db spl between 25-50 khz, corresponding to the energy band of t ...20092746553
pseudogymnoascus destructans: evidence of virulent skin invasion for bats under natural conditions, europe.while pseudogymnoascus destructans has been responsible for mass bat mortalities from white-nose syndrome (wns) in north america, its virulence in europe has been questioned. to shed the light on the issue of host-pathogen interaction between european bats and p. destructans, we examined seventeen bats emerging from the fungus-positive underground hibernacula in the czech republic during early spring 2013. dual wing-membrane biopsies were taken from barbastella barbastellus (1), myotis daubenton ...201525268034
the peripheral auditory characteristics of noctuid moths: responses to the search-phase echolocation calls of batsthe noctuid moths agrotis segetum and noctua pronuba show peak auditory sensitivity between 15 and 25 khz, and a maximum sensitivity of 35 db spl. a. segetum shows a temporal integration time of 69 ms. it is predicted that bats using high-frequency and short-duration calls will be acoustically less apparent to these moths. short-duration frequency-modulated (fm) calls of plecotus auritus are not significantly less acoustically apparent than those of other fm bats with slightly longer call durati ...19969318627
white-nose syndrome fungus: a generalist pathogen of hibernating bats.host traits and phylogeny can determine infection risk by driving pathogen transmission and its ability to infect new hosts. predicting such risks is critical when designing disease mitigation strategies, and especially as regards wildlife, where intensive management is often advocated or prevented by economic and/or practical reasons. we investigated pseudogymnoascus [geomyces] destructans infection, the cause of white-nose syndrome (wns), in relation to chiropteran ecology, behaviour and phylo ...201424820101
argasid and spinturnicid mite load on swarming bats in the tatra mountains, poland.altogether 445 bats, representing nine species, caught during swarming in the lodowa cave in mount ciemniak, western tatra mountains, southern poland, were examined for ectoparasitic mites. in total, 259 spinturnicid (spinturnix mystacina, s. andegavinus, s. kolenatii, s. plecotinus and s. myoti) and 95 argasid (carios vespertilionis) mites were collected from seven bat species, myotis myotis, m. mystacinus, m. brandtii, m. daubentonii, eptesicus nilssonii, plecotus auritus, and vespertilio muri ...201122263314
[specificity of content and morphology of peripheral blood cells in three bat species of karelia during hibernation].pronounced leukopenia during hibernation was found in bats (chiroptera) of karelia - brown long-eared bat (plecotus auritus), brandt's bat (myotis brandtii) and northern bat (eptesicus nilssoni). a higher content of lymphocytes, eosinophils and basophils was revealed in the northern bat featuring an increased resistance to cold as compared to the brandt's bat and the brown long-eared bat. the differences in ratio of particular lymphocyte types may be related to biological, ecological and physiol ...201526547955
enhanced passive bat rabies surveillance in indigenous bat species from germany--a retrospective study.in germany, rabies in bats is a notifiable zoonotic disease, which is caused by european bat lyssaviruses type 1 and 2 (eblv-1 and 2), and the recently discovered new lyssavirus species bokeloh bat lyssavirus (bblv). as the understanding of bat rabies in insectivorous bat species is limited, in addition to routine bat rabies diagnosis, an enhanced passive surveillance study, i.e. the retrospective investigation of dead bats that had not been tested for rabies, was initiated in 1998 to study the ...201424784117
[a new species of cestode, vampirolepis insula sp. n. (cyclophyllidea: hymenolepididae) from bats of the sakhalin and kunashir islands].description of a new cestode species vampirolepis insula sp. n. parasitizing ambliotus nilssonni (keyserling et blasius, 1839 and plecotus auritus linnaeus, 1758 from the islands sakhalin and kunashir is given. the new species is closely related to the species group within the genus vampirolepis having 30 rostellar hooks 0.020-0.022 mm length with the blades shorter than guard. the group includes v. balsaci (joyeux et baer, 1934) spassky, 1954, sawada, 1974 and v. ozensis sawada, 1974. the main ...201020536008
checklist of host associations of european bat flies (diptera: nycteribiidae, streblidae).bat flies are obligate blood-sucking ectoparasites of bats. they are divided into two families: nycteribiidae and streblidae. europe has 17 species of bat flies and 45 species of bats (mammalia: chiroptera). this checklist is based on both published records and our own field data and provides updated information on all associations between bat flies and their hosts in europe. the host-parasite association between basilia italica theodor and plecotus auritus (linnaeus) is reported for the first t ...201627988583
insectivorous bats carry host specific astroviruses and coronaviruses across different regions in germany.recently several infectious agents with a zoonotic potential have been detected in different bat species. however, there is still a lack of knowledge on the transmission dynamics within and between bat species, as well as from bats to other mammals. to better understand these processes, it is important to compare the phylogenetic relationships between different agents to that of their respective hosts. in this study, we analysed more than 950 urine, faeces and oral swab samples collected from 65 ...201626584511
stage of pregnancy dictates heterothermy in temperate forest-dwelling bats.bats face high energetic requirements, as powered flight is costly and they have a disadvantageous surface-to-volume-ratio. to deal with those requirements energy saving mechanisms, such as heterothermy (torpor), have evolved. torpor during pregnancy, however, reduces rates of foetal development and consequently prolongs pregnancy. therefore, heterothermy has a great effect on reproduction, as an unhindered parturition can only be assured by high body temperatures. regardless of these adverse af ...201525526657
insectivorous bats digest chitin in the stomach using acidic mammalian chitinase.the gastrointestinal tract of animals is adapted to their primary source of food to optimize resource use and energy intake. temperate bat species mainly feed on arthropods. these contain the energy-rich carbohydrate chitin, which is indigestible for the endogenous enzymes of a typical mammalian gastrointestinal tract. however, the gastrointestinal tract of bat species should be adapted to their diet and be able to digest chitin. we hypothesized that (i) european vespertilionid bat species have ...201324019876
bioaccumulation of selected organochlorines in bats and tits: influence of chemistry and biology.we analyzed six organochlorine compounds (hcb, lindane, p,p'-dde, pcb # 138, #153, and # 180) from populations of the european great tit (parus major) and from five species of bats (pipistrellus pipistrellus, nyctalus noctula, plecotus auritus, plecotus austriacus, myotis myotis). a weak positive correlation between kow (n-octanol /water partition coefficient) and bioaccumulation (measured as residue values) was found within each species. however, the ratio of the concentrations in bats compared ...199524234684
predicting species distributions using record centre data: multi-scale modelling of habitat suitability for bat roosts.conservation increasingly operates at the landscape scale. for this to be effective, we need landscape scale information on species distributions and the environmental factors that underpin them. species records are becoming increasingly available via data centres and online portals, but they are often patchy and biased. we demonstrate how such data can yield useful habitat suitability models, using bat roost records as an example. we analysed the effects of environmental variables at eight spat ...201526053548
integrated operational taxonomic units (iotus) in echolocating bats: a bridge between molecular and traditional taxonomy.nowadays, molecular techniques are widespread tools for the identification of biological entities. however, until very few years ago, their application to taxonomy provoked intense debates between traditional and molecular taxonomists. to prevent every kind of disagreement, it is essential to standardize taxonomic definitions. along these lines, we introduced the concept of integrated operational taxonomic unit (iotu). iotus come from the concept of operational taxonomic unit (otu) and parallele ...201222761951
the effects of reproductive state on digestive efficiency in three sympatric bat species of the same guild.the functional link between food as an energy source and metabolizable energy is the digestive tract. the digestive organs may change in size, structure, or retention time in response to energetic demands of the animal. very efficient digestive tracts may be better at processing food but require higher energetic investments for maintenance even when post-absorptive. these costs influence the resting metabolic rate (rmr) that is defined as the energy necessary to fuel vital metabolic functions in ...201222561664
age of enlightenment: long-term effects of outdoor aesthetic lights on bats in churches.we surveyed 110 country churches in south-western sweden for presence of brown long-eared bats plecotus auritus in summer 2016 by visual inspection and/or evening emergence counts. each church was also classified according to the presence and amount of aesthetic directional lights (flood-lights) aimed on its walls and tower from the outside. sixty-one of the churches had previously been surveyed by one of us (j.r.) between 1980 and 1990, before lights were installed on swedish churches, using th ...201728878962
ear-body lift and a novel thrust generating mechanism revealed by the complex wake of brown long-eared bats (plecotus auritus).large ears enhance perception of echolocation and prey generated sounds in bats. however, external ears likely impair aerodynamic performance of bats compared to birds. but large ears may generate lift on their own, mitigating the negative effects. we studied flying brown long-eared bats, using high resolution, time resolved particle image velocimetry, to determine the aerodynamics of flying with large ears. we show that the ears and body generate lift at medium to cruising speeds (3-5 m/s), but ...201627118083
a potential role for bat tail membranes in flight control.wind tunnel tests conducted on a model based on the long-eared bat plecotus auritus indicated that the positioning of the tail membrane (uropatagium) can significantly influence flight control. adjusting tail position by increasing the angle of the legs ventrally relative to the body has a two-fold effect; increasing leg-induced wing camber (i.e., locally increased camber of the inner wing surface) and increasing the angle of attack of the tail membrane. we also used our model to examine the eff ...201121479137
histomorphology of the penis bone (baculum) in the gray long-eared bat plecotus austriacus (chiroptera, vespertilionidae).for the first time, the histomorphology of the penis bone of a bat (plecotus austriacus) was examined in detail. from plecotus austriacus, 14 whole penes and 11 isolated bacula were studied and compared to bacula of plecotus auritus and plecotus macrobullaris. the baculum was located on specimen microradiographs and in micro-ct images in the tip of the penis. using serial semithin sections and surface-stained, undecalcified ground sections, the types of bone and other tissues constituting the ba ...201020583269
the role of swarming sites for maintaining gene flow in the brown long-eared bat (plecotus auritus).bat-swarming sites where thousands of individuals meet in late summer were recently proposed as 'hot spots' for gene flow among populations. if, due to female philopatry, nursery colonies are genetically differentiated, and if males and females of different colonies meet at swarming sites, then we would expect lower differentiation of maternally inherited genetic markers among swarming sites and higher genetic diversity within. to test these predictions, we compared genetic variance from three s ...200415241447
conflicting molecular phylogenies of european long-eared bats (plecotus) can be explained by cryptic diversity.conflicting phylogenetic signals of two data sets that analyse different portions of the same molecule are unexpected and require an explanation. in the present paper we test whether (i) differential evolution of two mitochondrial genes or (ii) cryptic diversity can better explain conflicting results of two recently published molecular phylogenies on the same set of species of long-eared bats (genus plecotus). we sequenced 1714bp of three mitochondrial regions (16s, nd1, and d-loop) of 35 plecot ...200212450759
mating patterns, relatedness and the basis of natal philopatry in the brown long-eared bat, plecotus auritus.the brown long-eared bat, plecotus auritus, is unusual among temperate zone bats in that summer maternity colonies are composed of adult males and females, with both sexes displaying natal philopatry and long-term association with a colony. here, we describe the use of microsatellite analysis to investigate colony relatedness and mating patterns, with the aim of identifying the evolutionary determinants of social organization in p. auritus. mean colony relatedness was found to be low (r=0.033 +/ ...200111380886
effects of body mass and reproduction on the basal metabolic rate of brown long-eared bats (plecotus auritus).we measured basal metabolic rate (bmr) of nonreproductive and of breeding (pregnant and lactating) female brown long-eared bats (plecotus auritus) to investigate the effects of intra- and interindividual variation in body mass and of reproduction on metabolism. the bmr of six nonreproductive females was measured between five and seven times at approximately 2-wk intervals over a period of 2.5 mo. there was a highly significant effect (p<0.001) of body mass on bmr of these nonreproductive females ...200310685913
preparing for inactivity: how insectivorous bats deposit a fat store for hibernation.during late autumn insectivorous bats must deposit a fat store to cover their energy demands throughout the period of hibernation, yet the density of aerial insects by this time has already declined from its peak in midsummer. krzanowski (1961) suggested that bats are able to deposit a fat store by manipulating their energy expenditure; specifically by selecting cold roosting locations rather than warm roosts, and depressing their body temperatures during the day roosting period. it was hypothes ...199910343349
echolocation call structure and intensity in five species of insectivorous bats.echolocation call intensity was measured in the laboratory for five species of british insectivorous bats in free flight and in the hand. all species showed similar call intensities of between 80 and 90 db pespl (peak equivalent spl) at 1 m during flight except plecotus auritus, whose call intensity was between 68 and 77 db pespl at 1 m. calls from stationary bats were about 13 db less intense than calls during flight. a method is proposed to measure the root mean square (rms) amplitude of echol ...19957699316
the functional significance of ventilation frequency, and its relationship to oxygen demand in the resting brown long-eared bat, plecotus auritus.mean oxygen consumption and simultaneous ventilation frequency of nine non-reproductive brown long-eared bats (body mass 8.53-13.33 g) were measured on 159 occasions. ambient (chamber) temperature at which the measurements were made ranged from 10.8 to 41.1 degrees c. apneic ventilation occurred in 22 of the 59 measurements made when mean oxygen consumption was less than 0.5 ml.min-1. no records of apneic ventilation were obtained when it was over 0.5 ml.min-1. the relationship between ventilati ...19921592909
[the perception by the long-eared bat plecotus auritus of signals of different frequencies and intensities]. 19902084547
[acoustic signaling in the common long-eared bat plecotus auritus]. 19892601783
aerodynamics of hovering flight in the long-eared bat plecotus auritus.steady-state aerodynamic and momentum theories were used for calculations of the lift and drag coefficients of plecotus auritus in hovering flight. the lift coefficient obtained varies between 3-1 and 6-4, and the drag coefficient between --5-0 and 10-5, for the possible assumptions regarding the effective angles of attack during the upstroke. this demonstrates that hovering flight in plecotus auritus can not be explained by quasi-steady-state aerodynamics. thus, non-steady-state aerodynamics mu ...19761003089
aerodynamics, kinematics, and energetics of horizontal flapping flight in the long-eared bat plecotus auritus.the kinematics, aerodynamics, and energetics of plecotus auritus in slow horizontal flight, 2-35 m s-1, are analysed. at this speed the inclination of the stroke path is ca. 58 degrees to the horizontal, the stroke angle ca. 91 degrees, and the stroke frequency ca. 11-9 hz. a method, based on steady-state aerodynamic and momenthum theories, is derived to calculate the lift and drag coefficients as averaged over the whole wing the whole wing-stroke for horizontal flapping flight. this is a furthe ...1976993701
coronavirus and paramyxovirus in bats from northwest italy.bat-borne virus surveillance is necessary for determining inter-species transmission risks and is important due to the wide-range of bat species which may harbour potential pathogens. this study aimed to monitor coronaviruses (covs) and paramyxoviruses (pmvs) in bats roosting in northwest italian regions. our investigation was focused on covs and pmvs due to their proven ability to switch host and their zoonotic potential. here we provide the phylogenetic characterization of the highly conserved ...201729273042
spindle cell tumor in a brown long-eared bat (plecotus auritus).most reports of neoplasia in bats are in captive egyptian fruit bats (rousettus aegyptiacus), a megachiropteran species. only three reports of neoplasia in microchiropteran species have been reported. we report the detection of a tumor in a wild brown long-eared bat (plecotus auritus), a microchiropteran species, in england. histolopathology indicated the mass was a spindle cell tumor, likely of smooth muscle origin, which was confirmed by immunohistochemistry.201931081737
frequent or scarce? damage to flight-enabling body parts in bats (chiroptera).bat wings are characterized by high endurance, and these mammals have developed a number of adaptations that protect them from falling into obstacles and potential injuries. however, in bat populations, there are individuals with visible fresh or healed injuries to the flight-enabling body parts. the aim of this research was to determine the differences in the occurrence of wing membrane damages among species of bats that differ in ecology and behavior. the study was conducted in southern and we ...201931329631
molecular identification of betacoronavirus in bats from sardinia (italy): first detection and phylogeny.bats may be natural reservoirs for a large variety of emerging viruses, including mammalian coronaviruses (cov). the recent emergence of severe acute respiratory syndrome-associated coronavirus (sars-cov) and middle east respiratory syndrome coronavirus (mers-cov) in humans, with evidence that these viruses may have their ancestry in bats, highlights the importance of virus surveillance in bat populations. here, we report the identification and molecular characterization of a bat β-coronavirus, ...201930426315
body lift, drag and power are relatively higher in large-eared than in small-eared bat species.bats navigate the dark using echolocation. echolocation is enhanced by external ears, but external ears increase the projected frontal area and reduce the streamlining of the animal. external ears are thus expected to compromise flight efficiency, but research suggests that very large ears may mitigate the cost by producing aerodynamic lift. here we compare quantitative aerodynamic measures of flight efficiency of two bat species, one large-eared (plecotus auritus) and one small-eared (glossopha ...201729070593
serological survey of lyssaviruses in polish bats in the frame of passive rabies surveillance using an enzyme-linked immunosorbent assay.background: bats are known to host a number of nonpathogenic viruses, as well as highly pathogenic viruses causing fatal diseases like rabies. serological surveys as part of active and passive bat rabies surveillance mainly use seroneutralization assays, demonstrating the presence of lyssavirus-specific antibodies in a variety of european bats, particularly against european bat lyssaviruses type 1 (eblv-1). here, we present the first serological survey in european bats of this kind during which ...202032121200
hidden in our pockets: building of a dna barcode library unveils the first record of myotis alcathoe for portugal.the advent and boom of dna barcoding technologies have provided a powerful tool for the fields of ecology and systematics. here, we present the inbio barcoding initiative database: portuguese bats (chiroptera) dataset containing dna sequences of 63 specimens representing the 25 bat species currently known for continental portugal. for that, we sequenced tissues samples obtained in a vast array of projects spanning the last two decades.202032821211
penis size and sperm quality, are all bats grey in the dark?penises play a key role in sperm transport and in stimulating female genitals. this should impact post-copulatory competition, and expose penis characteristics to sexual selective pressures. studies of male genitalia have repeatedly reported negative static allometries, which mean that, within species, large males have disproportionally small genitals when compared with smaller individuals. males of some sperm-storing bat species may stand as an exception to such a pattern by arousing from hiber ...201931857816
table for five, please: dietary partitioning in boreal bats.differences in diet can explain resource partitioning in apparently similar, sympatric species. here, we analyzed 1,252 fecal droppings from five species (eptesicus nilssonii, myotis brandtii, m. daubentonii, m. mystacinus, and plecotus auritus) to reveal their dietary niches using fecal dna metabarcoding. we identified nearly 550 prey species in 13 arthropod orders. two main orders (diptera and lepidoptera) formed the majority of the diet for all species, constituting roughly 80%-90% of the die ...201830519417
similar but not the same: metal concentrations in hair of three ecologically similar, forest-dwelling bat species (myotis bechsteinii, myotis nattereri, and plecotus auritus).recently, a number of studies demonstrated the suitability of hair analysis to assess metal exposure of bats. as many bat species are endangered, such a non-destructive method is particularly suited for this taxon. the present study analyzed the levels of two non-essential (cadmium and lead) and four essential metals (copper, manganese, molybdenum, and zinc) in hairs of three ecologically similar, sympatric bat species, bechstein's bat (myotis bechsteinii), natterer's bat (myotis nattereri), and ...201829214475
the menu varies with metabarcoding practices: a case study with the bat plecotus auritus.metabarcoding of feces has revolutionized the knowledge of animal diets by providing unprecedented resolution of consumed resources. however, it is still unclear how different methodological approaches influence the ecological conclusions that can be drawn from such data. here, we propose a critical evaluation of several data treatments on the inferred diet of the bat plecotus auritus using guano regularly collected from various colonies throughout the entire active season. first and unlike prev ...201931276547
porous barriers? assessment of gene flow within and among sympatric long-eared bat species.species are the basic units for measuring biodiversity and for comprehending biological interactions. yet, their delineation is often contentious, especially in groups that are both diverse and phenotypically conservative. three cryptic species of long-eared bats, plecotus auritus, p. austriacus, and p. macrobullaris, co-occur over extensive areas of western europe. the latter is a fairly recent discovery, questioning the overall diversity of the entire plecotus complex. yet, high morphological ...201830619587
aerodynamics of manoeuvring flight in brown long-eared bats (plecotus auritus).in this study, we explicitly examine the aerodynamics of manoeuvring flight in animals. we studied brown long-eared bats flying in a wind tunnel while performing basic sideways manoeuvres. we used particle image velocimetry in combination with high-speed filming to link aerodynamics and kinematics to understand the mechanistic basis of manoeuvres. we predicted that the bats would primarily use the downstroke to generate the asymmetries for the manoeuvre since it has been shown previously that th ...201830404906
demodecid mites (acariformes, demodecidae) in brown longeared bat plecotus auritus (chiroptera, vespertilionidae) – second record in the world and systematic status of demodex chiropteralis hirst, 1921as many as 26 species of parasitic mites of the demodecidae family have thus far been described in the chiroptera, of which only three have been found in bats from europe. the first of the latter group was demodex chiropteralis hirst, 1921, described on the basis of only two females originating from one bat from great britain; an observation which has never been made since. the present study reports the discovery of both male and female d. chiropteralis in poland, together with other unknown dem ...201829983022
directionality of nose-emitted echolocation calls from bats without a nose leaf (plecotus auritus).all echolocating bats and whales measured to date emit a directional bio-sonar beam that affords them a number of advantages over an omni-directional beam, i.e. reduced clutter, increased source level and inherent directional information. in this study, we investigated the importance of directional sound emission for navigation through echolocation by measuring the sonar beam of brown long-eared bats, plecotus auritusplecotus auritus emits sound through the nostrils but has no external appendage ...201829222128
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