heavy metals and metallothionein in vespertilionid bats foraging over aquatic habitats in the czech republic.there has been growing interest in the study and conservation of bats throughout the world. declines in their absolute numbers in recent decades are due, in part, to the fact that insectivorous bats may bioaccumulate toxic pollutants. the purpose of the present study was to quantify heavy metal concentrations in kidney, liver, and pectoral muscle samples in relation to metallothionein (mt) levels. in total, 106 bats belonging to 11 european species (i.e., myotis myotis, myotis daubentonii, myoti ...201020821471
detection of diverse novel bat astrovirus sequences in the czech republic.astroviruses are a major cause of gastroenteritis in humans and animals. recently, novel groups of astroviruses were identified in apparently healthy insectivorous bats. we report the detection of diverse novel astrovirus sequences in nine different european bat species: eptesicus serotinus, hypsugo savii, myotis emarginatus, m. mystacinus, nyctalus noctula, pipistrellus nathusii or p. pygmaeus, p. pipistrellus, vespertilio murinus, and rhinolophus hipposideros. in six bat species, astrovirus se ...201526273815
enhanced passive bat rabies surveillance in indigenous bat species from germany--a retrospective 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
nathusius' bats optimize long-distance migration by flying at maximum range speed.aerial migration is the fastest, yet most energetically demanding way of seasonal movement between habitats. however, for many taxa, and bats in particular, we lack a clear understanding of the energy requirements for migration. here, we examined the energetic cost and flight speed of the long-distance migratory nathusius' bat (pipistrellus nathusii). we measured flight metabolism in relation to airspeed in a wind tunnel, inferred the optimal traveling speed over long distances, i.e. maximum ran ...201930814276
migratory bats are attracted by red light but not by warm-white light: implications for the protection of nocturnal migrants.the replacement of conventional lighting with energy-saving light emitting diodes (led) is a worldwide trend, yet its consequences for animals and ecosystems are poorly understood. strictly nocturnal animals such as bats are particularly sensitive to artificial light at night (alan). past studies have shown that bats, in general, respond to alan according to the emitted light color and that migratory bats, in particular, exhibit phototaxis in response to green light. as red and white light is fr ...201830377506
[the influence of purine nucleotides and adenosine on bioelectrical activity of bat (pipistrellus nathusii) heart].the aim of work was to investigate effects of adenosine, amp, gmp and adp-ribose on bioelectric activity of bat heart. purine nucleotides decreased action potential duration at level of 90% (apd90) repolarization in bat ventricular myocardium. when preparation of right ventricle was paced with frequency of 6 hz, apd50 and apd90 were 7 +/- 2 ms and 60 +/- 5 ms, respectively. adenosine decreased apd90 by 50 +/- 10% (n=6), amp - by 30 +/- 10% (n=6), gmp - by 38 +/- 5% (n=6), adp-ribose - by 24 +/- ...200818789010
detection and prevalence patterns of group i coronaviruses in bats, northern germany.we tested 315 bats from 7 different bat species in northern germany for coronaviruses by reverse transcription-pcr. the overall prevalence was 9.8%. there were 4 lineages of group i coronaviruses in association with 4 different species of verspertilionid bats (myotis dasycneme, m. daubentonii, pipistrellus nathusii, p. pygmaeus). the lineages formed a monophyletic clade of bat coronaviruses found in northern germany. the clade of bat coronaviruses have a sister relationship with a clade of chine ...200818400147
regeneration of lateral line and inner ear vestibular cells.labelling experiments with [3h]thymidine demonstrate a continuous production of cells in the mechanoreceptive lateral line organs of the eel (anguilla anguilla) and butterfly fish (pantodon buchholzi) as well as in the electroreceptive ampullary organ of the transparent catfish (kryptopterus bicirrhus). shortly after [3h]thymidine injection many cells are labelled in the middle and basal parts of the sensory organ and after a few days' survival sensory cells are also labelled. the vestibular sen ...19911752161
biological characteristics and permissiveness to viruses of diploid kidney cells strain from the bat nathusius' pipistrelle (pipistrellus nathusii keyserling & blasius, 1839; chiroptera: microchiroptera: vespertilionidae).bats are an epidemiologically important natural reservoir of viruses of various taxonomic groups, including causative agents of especially dangerous infections of humans and animals. considering the relevance of arbovirus infections, it seems advisable to study the spectrum of the sensitivity of cells derived from bats inhabiting and migrating on the territory of the russian federation to causative agents of vector-borne diseases of animals.the study aimed to obtain a diploid strain of cells fro ...202133683063
migratory flight imposes oxidative stress in bats.many animal species migrate over long distances, but the physiological challenges of migration are poorly understood. it has recently been suggested that increased molecular oxidative damage might be one important challenge for migratory animals. we tested the hypothesis that autumn migration imposes an oxidative challenge to bats by comparing values of 4 blood-based markers of oxidative status (oxidative damage and both enzymatic and nonenzymatic antioxidants) between nathusius' bats pipistrell ...201930936903
bats and wind farms: the role and importance of the baltic sea countries in the european context of power transition and biodiversity conservation.although labeled as environmentally friendly, wind power can have negative impacts on the environment, such as habitat destruction or wildlife fatalities. considering the distribution and migratory characteristics of european bats, the negative effects of wind power should be addressed on an appropriate scale. this review summarizes the current state of knowledge on interactions between wind farms and bats in europe, and compares it with the situation in the countries of the european boreal biog ...202032830494
the immune response of bats differs between pre-migration and migration seasons.maintaining a competent immune system is energetically costly and thus immunity may be traded against other costly traits such as seasonal migration. here, we tested in long-distance migratory nathusius' pipistrelles (pipistrellus nathusii), if selected branches of immunity are expressed differently in response to the energy demands and oxidative stress of aerial migration. during the migration period, we observed higher baseline lymphocyte and lower neutrophil levels than during the pre-migrati ...202033060711
between-species jamming avoidance in pipistrelles?past studies have reported that bats modify the spectral-temporal features of their vocalizations to avoid interference from the vocalizations of conspecifics (jamming avoidance). we tested for within, and between-species jamming avoidance in two sympatrically occurring species of vespertilionid bats, pipistrellus pipistrellus and pipistrellus nathusii. in both species the peak frequencies of the narrowband frequency component from samples of bats flying with conspecifics varied more than those ...201120938777
the insectivorous bat pipistrellus nathusii uses a mixed-fuel strategy to power autumn contrast to birds, bats are possibly limited in their capacity to use body fat as an energy source for long migrations. here, we studied the fuel choice of migratory pipistrellus nathusii (approximate weight: 8 g) by analysing the stable carbon isotope ratio (δ(13)c(v-pdb)) of breath and potential energy sources. breath δ(13)c(v-pdb) was intermediate between δ(13)c(v-pdb) of insect prey and adipocyte triacylglycerols, suggesting a mixed-fuel use of p. nathusii during autumn migration. to clar ...201222719039
diet of the insectivorous bat pipistrellus nathusii during autumn migration and summer residence.migration is widespread among vertebrates, yet bat migration has received little attention and only in the recent decades has a better understanding of it been gained. migration can cause significant changes in behaviour and physiology, due to increasing energy demands and aerodynamic constraints. dietary shifts, for example, have been shown to occur in birds before onset of migration. for bats, it is not known if a change in diet occurs during migration, although breeding season-related dietary ...201424118366
polarized skylight does not calibrate the compass system of a migratory a recent study, greif et al. (greif et al. nat commun 5, 4488. (doi:10.1038/ncomms5488)) demonstrated a functional role of polarized light for a bat species confronted with a homing task. these non-migratory bats appeared to calibrate their magnetic compass by using polarized skylight at dusk, yet it is unknown if migratory bats also use these cues for calibration. during autumn migration, we equipped nathusius' bats, pipistrellus nathusii, with radio transmitters and tested if experimental a ...201526382077
migratory bats respond to artificial green light with positive phototaxis.artificial light at night is spreading worldwide at unprecedented rates, exposing strictly nocturnal animals such as bats to a novel anthropogenic stressor. previous studies about the effect of artificial light on bats focused almost exclusively on non-migratory species, yet migratory animals such as birds are known to be largely affected by light pollution. thus, we conducted a field experiment to evaluate if bat migration is affected by artificial light at night. in late summer, we presented a ...201728562607
testing hypotheses of bat baculum function with 3d models derived from microct.the baculum (os penis) has been extensively studied as a taxon-specific character in bats and other mammals but its mechanical function is still unclear. there is a wide consensus in the literature that the baculum is probably a sexually selected character. using a novel approach combining postmortem manipulation and three-dimensional (3d) imaging, we tested two functional hypotheses in the common noctule bat nyctalus noctula, the common pipistrelle pipistrellus pipistrellus, and nathusius' pipi ...201525655647
habitat use of migratory bats killed during autumn at wind turbines.the killing of large numbers of migratory bats at wind turbines is a pressing conservation problem. even though avoidance and mitigation measures could benefit from a better knowledge of the species' migratory habits, we lack basic information about what habitats and corridors bats use during migration. we studied the isotopic niche dimensions of three bat species that are frequently killed at wind turbines in germany: non-migratory pipistrellus pipistrellus, mid-distance migratory nyctalus noct ...201627411249
listeria monocytogenes infection of bat pipistrellus nathusii epithelial cells depends on the invasion factors inla and inlb.l. monocytogenes is a widespread facultative intracellular pathogen. the range of natural hosts that supporting l. monocytogenes persistence in the environment has not been fully established yet. in this study, we were interested in the potential of l. monocytogenes to infect cells of bats, which are being increasingly recognized as a reservoir for microorganisms that are pathogenic to humans and domestic animals. a stable epithelial cell line was developed from the kidneys of pipistrellus nathu ...202033105852
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