Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
|---|
| neurons in the superior colliculus of echo-locating bats respond to ultrasonic signals. | using conventional electrophysiological techniques, we demonstrate that neurons in the superior colliculus of the big brown bat (eptesicus fuscus) respond to ultrasonic signals. most response properties of these neurons are very similar to neurons of the inferior colliculus in the same bat. | 1983 | 6626974 |
| unmasking in neurons of the inferior colliculus of eptesicus fuscus with binaural stimulation. | 171 single inferior colliculus neurons displaying basic auditory properties similar to those described previously were sampled, and 118 of those were tested to determine whether monaurally masked responses (band passed noise of +/- 5 khz around the best frequency of the pure tone) could be recovered if the masking noise was presented binaurally. 26% of the units tested showed such an improvement in signal detection, i.e. what is called masking level difference (mld) by psychoacousticians. signal ... | 1983 | 6874604 |
| a comparison of milk composition in myotis lucifugus and eptesicus fuscus (chiroptera: vespertilionidae). | milk composition in two species of insectivorous bats (myotis lucifugus and eptesicus fuscus) was determined. no significant differences in fat, lactose, protein, or energy content were evident during the lactation period for m. lucifugus. the percentage of fat, lactose, and protein averaged 13.5, 3.3, 7.4, respectively, for m. lucifugus, and 16.4, 2.5, 6.2, respectively, for e. fuscus. energy content of milk averaged 7.32 kj/g for m. lucifugus and 8.37 kj/g for e. fuscus. the percentage of lact ... | 1983 | 6830940 |
| biochemical and morphometric studies of heart, liver and skeletal muscle from the hibernating, arousing and aroused big brown bat, eptesicus fuscus. | heart, liver, pectoralis major, and plasma of hibernating, arousing and aroused bats were studied. the activities of four mitochondrial enzymes and three morphometric parameters of mitochondria did not change in the heart. mitochondrial enzyme activities in the liver and pectoralis major did not change. lactate dehydrogenase activity and isoenzyme content in heart, liver and pectoralis major did not change. heart lipid content determined morphometrically decreased transiently after 30 min arousa ... | 1983 | 6641165 |
| maseria vespertilionis n.g., n.sp. (dorylaimina : muspiceidae), a nematode from nearctic bats (vespertilionidae). | maseria vespertilionis n. g., n. sp. (dorylaimina : muspiceidae) is described from nearctic bats (vespertilionidae). in addition to the type host, eptesicus fuscus (p. de beauvois), in oregon, m. vespertilionis was recorded from myotis volans (allen) in oregon, and from m. lucifugus (le conte) in oregon and alaska. the nematode was found only in subcutaneous tissues near the plantar surface of the rear feet of the host. the genus maseria is distinguished from other genera in muspiceidae by vario ... | 1983 | 6638790 |
| reservoir of st. louis encephalitis virus in ohio bats. | inoculation of the big brown bat (eptesicus fuscus) with a small dose of a st. louis encephalitis (sle) virus strain isolated in ohio indicated that the big brown bat was susceptible to infection. the virus was maintained in the bats through hibernation (70 days), and the bats developed a viremia within 4 days of arousal from hibernation (105 days after inoculation). a field survey of 390 big brown bats and little brown bats (myotis lucifugus) conducted in 5 regions of ohio during 1979 to 1981 r ... | 1983 | 6638648 |
| bats in the belfry: an outbreak of histoplasmosis. | the belfry and attic of a 100-year-old school building located in central illinois were infested with a colony of big brown bats (eptesicus fuscus). during the week of april 14, 1980, four workers disturbed the piles of bat droppings in the attic, causing dust to become airborne. seven to 10 days later, all four workers developed symptoms and chest x-ray findings compatible with acute pulmonary histoplasmosis. their sera had complement fixation (cf) titers of greater than or equal to 1:32 with f ... | 1982 | 7137434 |
| echolocation in bats: the external ear and perception of the vertical positions of targets. | echolocating bats (eptesicus fuscus) can perceive changes of as little as 3 degrees of arc in the vertical angles separating pairs of horizontal rods. this acuity depends upon modification of sounds entering the external ear canal by the structures of the external ear. deflection of the tragus degrades the acuity of vertical-angle perception from 3 degrees to about 12 degrees to 14 degrees. the pinna-tragus structure produces a strong secondary echo of sounds entering the external ear canal, and ... | 1982 | 7123247 |
| concentrations of lactate and pyruvate and temperature effects on lactate dehydrogenase activity in the tissues of the big brown bat (eptesicus fuscus) during arousal from hibernation. | 1. the rectal temperatures, steady state concentrations of lactate and pyruvate, and the ldh isoenzyme composition in the heart, liver, and pectoral muscle of hibernating and arousing eptesicus fuscus were measured. 2. bat rectal temperature increased from 8.86 to 33.1 degrees c during arousal. 3. during arousal, steady state concentrations of pyruvate and lactate increased significantly in the tissues, however they remained generally below the level necessary to saturate ldh at the respective t ... | 1982 | 7151414 |
| a mathematical model describing the effect of temperature and substrate concentration on the activities of m4 and h4 lactate dehydrogenase from the big brown bat (eptesicus fuscus). | 1981 | 7325684 | |
| neurons in the cerebellum of echolocating bats respond to acoustic signals. | single neurons responding to auditory stimuli (40 msec duration, 0.5 msec rise-decay time) could be isolated from rather large areas of the cerebellar vermis and hemispheres of an echolocating bat, eptesicus fuscus. these neurons had latencies between 4 and 13 msec and best frequencies between 22 and 77 khz. the q10-db values of their tuning curves were between 1.4 and 16.6. when acoustic stimuli were delivered though the earphones, tuning curves measured from each ear alone were nearly identica ... | 1980 | 7397541 |
| characteristics of bat rabies in alberta. | rabies in bats was monitored in alberta from 1971 to 1978 big brown bats replaced silver-haired bats as the species most frequently reported rabid during these years. rabies infection was comparatively high among little brown bats in central alberta in 1973 and has subsequently declined. only one rabid little brown bat was discovered in southern alberta which is populated by a different subspecies. outbreaks of rabies in little brown and big brown bat colonies tended to be brief events. observat ... | 1980 | 7397600 |
| perception of echo phase information in bat sonar. | echolocating bats (eptesicus fuscus) can detect changes as small as 500 nanoseconds in the arrival time of sonar echoes when these changes appear as jitter or alternations in arrival time from one echo to the next. the psychophysical function relating the bat's performance to the magnitude of the jitter corresponds to the half-wave rectified cross-correlation function between the emitted sonar signals and the echoes. the bat perceives the phase or period structure of the sounds, which cover the ... | 1979 | 451543 |
| ultrastructure of the atrioventricular node of the big brown bat, eptesicus fucus. | this investigation describes the ultrastructure of the atrioventricular node of eptesicus fuscus. two conducting cells types (nodal and transitional) are indentified which differ in location, myofibrillar content, and types of intercellular junctions. centrally located nodal cells display variable staining intensity and contain disorganized myofibrils which rarely form sarcomeres. desmosomes and nexus-like junctions connect the nodal cells. transitional cells, situated peripherally, exhibit dist ... | 1979 | 532545 |
| electrical response of bat retina to spectral stimulation: comparison of four microhiropteran species. | electrical responses of the retinas of 4 species of microchiropteran bats stimulated by spectrally restricted light flashes were found to diverge systematically from the rhodopsin absorption spectrum. the divergence was progressively greater across the 4 species. the results appeared explainable by assuming a second photoreceptor class and photopigment which was present in progressively greater numbers in the retinas of eptesicus fuscus, desmodus rotundus, artibeus jamaicensis and carollia persp ... | 1979 | 488274 |
| echo detection and target-ranging neurons in the auditory system of the bat eptesicus fuscus. | some of the neurons in the nucleus intercollicularis and auditory cortex of the echolocating bat eptesicus fuscus respond selectively to sonar echoes occurring with specific echo delays or pulse-echo intervals. they do not respond for a wide range of other types of sounds or for sonar echoes at longer or shorter pulse-echo intervals; they may, therefore, be specialized for detection and ranging of sonar targets. | 1978 | 705350 |
| sodium pentobarbital induced alterations in regional distribution of blood in peromyscus maniculatus (deer mouse) and eptesicus fuscus (big brown bat). | 1977 | 606346 | |
| naturally occurring rabies virus and neutralizing antibody in two species of insectivorous bats of new york state. | seven colonies of eptesicus fuscus , the big brown bat, and five colonies of myotis lucifugus , the little brown bat, in new york state were sampled for rabies virus and virus-neutralizing antibody. eight of 278 e. fuscus were found to have virus, while 18 of 187 had antibody titers of ≥1:8. one of 333 m. lucifugus yielded virus, while three of 127 had antibody. these data demonstrate the presence of rabies virus as well as immunity to rabies in some insectivorous bats of new york state. evaluat ... | 1977 | 24228955 |
| [histoplasma capsulatum: isolation from bats in cuba]. | a mycologic-serologic study of 169 bats of species artibeus jamaicensis parvipos, brachyphyllanana, eptesicus fuscus dutertreus, tadarida brasiliensis muscula and mormoops blainvillei which were catched in a cave of havana province is presented. histoplasma capsulatum were isolated from the lungs, liver and spleen, in four out of the five species studied. all species were serologically negative. | 1976 | 802802 |
| canine tooth wear in captive big brown bats (eptesicus fuscus). | 1976 | 1003049 | |
| organochlorine residues in three bat species from four localities in maryland and west virginia, 1973. | in 1973, 119 bats of three species were collected from four localities in maryland and west virginia. the collection included 43 big brown bats (eptesicus fuscus), 43 little brown brown bats (myotis lucifugus), and 33 eastern pipistrelles (pipistrellus subflavus). the bats were collected from round top mountain, washington co., md.; trout cave, pendleton co., w. va.; montpelier barn, prince georges co., md. residues of sigmaddt were highest in carcasses of bats from round top mountain, which is ... | 1976 | 826874 |
| comparison of regional blood distribution in eptesicus fuscus (big brown bat) during torpor (summer), hibernation (winter), and arousal. | 1975 | 1116073 | |
| response at fifteen weeks of the big brown bat (eptesicus fuscus) to intraperitoneal injections of n-2-acetylaminofluorene. | 1974 | 4472289 | |
| reproduction, growth, and mortality of the vespertilionid bat, eptesicus fuscus, in kansas. | 1974 | 4819591 | |
| brightness discrimination thresholds in the bat, eptesicus fuscus. | 1974 | 4462692 | |
| differential in rectal and chest muscle temperature during arousal in eptesicus fuscus and myotis sodalis (chiroptera: vespertilionidae). | 1974 | 4156236 | |
| populations and distribution of steatonyssus occidentalis (ewing) (acarina: macronyssidae) infesting the big brown bat, eptesicus fuscus (chiroptera: vespertilionidae). | 1973 | 4779927 | |
| sequential changes in regional distribution of blood in eptesicus fuscus (big brown bat) during arousal from hibernation. | 1973 | 4779820 | |
| metabolized energy of the big brown bat eptesicus fuscus (chiroptera). | 1973 | 4145443 | |
| fluctuations in the preoptic-anterior hypothalamic temperature in the bat, eptesicus fuscus. | 1971 | 4400037 | |
| echolocation in bats: signal processing of echoes for target range. | echolocating bats eptesicus fuscus and phyllostomus hastatus can discriminate between the nearer and farther of two targets. their errors in discrimination are predicted accurately by the autocorrelation functions of their sonar cries. these bats behave as though they have an ideal sonar system which cross correlates the transmitted cry with the returning echo to extract targetrange information. | 1971 | 5541661 |
| echolocation: discrimination of targets by the bat, eptesicus fuscus. | 1971 | 5548872 | |
| transit time of food through the digestive tract of the bat, eptesicus fuscus. | 1971 | 5147598 | |
| fine structure of the pancreatic islet cells of normal and alloxan treated bats (eptesicus fuscus). | 1970 | 4905599 | |
| prolonged incubation period of rabies in a naturally infected insectivorous bat, eptesicus fuscus (beauvois). | 1970 | 5424435 | |
| bat rabies in canada 1963-1967. | six hundred and twenty-eight insectivorous bats originating from seven provinces were submitted to this institute for rabies diagnosis between august 1, 1963 and december 31, 1967. brain tissue was examined by the fluorescent antibody technique and the mouse infectivity test was carried out with brain, salivary gland, interscapular adipose tissue and kidney samples. rabies virus was detected in 44 bats, 29 of which were from ontario, 12 from british columbia and three from manitoba. most of the ... | 1969 | 4242773 |
| studies of arthropod-borne virus infections in chiroptera. v. characteristics of lines of japanese b encephalitis virus developed by serial passage in big brown bats (eptesicus f. fuscus) maintained at different environmental temperatures. | 1969 | 5764191 | |
| hearing and cochlear microphonic potentials in the bat eptesicus fuscus. | 1967 | 6035688 | |
| use of big brown bats (eptesicus fuscus) in biomedical research. | 1966 | 4225475 | |
| studies of arthropod-borne virus infections in chiroptera. iv. the immune response of the big brown bat (eptesicus f. fuscus) maintained at various environmental temperatures to experimental japanese b encephalitis virus infection. | 1966 | 4287168 | |
| hearing sensitivity in bats. | absolute hearing thresholds for two bats were determined by an operant conditioning technique. pure tones rangingfrom 2.5 to 100 kilocycles per second were perceived by a single eptesicus fuscus. its maximum sensitivity was on the order of 68 decibles below 1 dyne per square centimeter and occurred at 20 kc/ sec. maximum sensitivity for a single myotis lucifugus was about 64 db below 1 dyne/ cm2 and occurred at 40 kc/ sec. the myotis clearly heard a tone of120 kc/ sec but gave no evidence of hea ... | 1965 | 5852976 |
| parasites from the big brown bat, eptesicus fuscus (beauvois), in western maryland (acarina and siphonaptera). | 1965 | 14280484 | |
| bats: sensitivity to ddt. | big brown bats, eptesicus fuscus, were fed single doses of varying amounts of ddt in corn oil injected into meal worms. all the doses of ddt fed to the bats, 40 milligrams or more per kilogram of body weight, were lethal. within a few hours to 13 days after being dosed, the animals developed convulsions; some bats survived up to 3 days after the oniset of the symptoms of poisoning. bats appear to be far more sensitive to ddt than any other mammal yet tested. | 1964 | 14199722 |
| bat rabies in ontario. | rabies has been diagnosed for the first time in the bat population of ontario. in the course of a study involving 72 bats from 24 counties of the province, five big brown bats (e. fuscus) were found to be infected with rabies through the mouse inoculation test. at the present time, it does not look as if bats have been connected with the epizootic of sylvatic rabies in ontario.la rage est apparue pour la première fois chez les chauves-souris en ontario. au cours d'une étude qui a porté sur 72 de ... | 1964 | 17649490 |
| brown fat: thermogenic effect during arousal from hibernation in the bat. | in the bat eptesicus fuscus the temperature of brown fat exceeded that of other tissues by about 3 degrees c during the late stages of arousal from hibernation. heat production seems to be a major function of brown fat in the hibernating mammal. | 1963 | 13989313 |
| a trypanosome from the big brown bat, eptesicus fuscus fuscus (beauvois), in minnesota. | 1955 | 13272117 | |
| effect of pseudorabies virus (aujeszky strain) in the large brown bat (eptesicus fuscus). | 1953 | 13050899 | |
| viability of the lansing strain of poliomyelitis virus in the bat (eptesicus fuscus). | 1952 | 14949015 | |
| transmission of a strain of rabies virus to the large brown bat (eptesicus fuscus) and to the cave bat (myotis lucifugus). | 1951 | 14849156 |