Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| faecal avoidance and selective foraging: do wild mice have the luxury to avoid faeces? | host-parasite interactions are a key determinant of the population dynamics of wild animals, and behaviours that reduce parasite transmission and infection may be important for improving host fitness. while antiparasite behaviours have been demonstrated in laboratory animals and domesticated ungulates, whether these behaviours operate in the wild is poorly understood. therefore, examining antiparasite behaviours in natural populations is crucial for understanding their ecological significance. i ... | 0 | 24027342 |
| effect of environmental temperature and starvation on adrenal glands of the white-footed mouse. | 1950 | 14771278 | |
| relative immunity of the american forest deer mouse, peromyscus leucopus noveboracensis, against hyperinfection and reinoculations with trypanosoma brucei. | 1950 | 15401977 | |
| resistance of the white-footed field mouse (peromyscus leucopus noveboracensis) to the carcinogenic action of urethane. | 1953 | 13106842 | |
| experimental infestation of peromyscus leucopus with larvae of cuterebra angustifrons. | four newly hatched larvae of the warble fly, cuterebra angustifrons, were successfully introduced into the mouse host, peromyscus leucopus, by application to the belly skin, the mouth, and the nose. regardless of the site of entry, each larva migrated to the inguinal region of the host and completed its development normally. | 1959 | 13668548 |
| peromyscus leucopus: an interesting subject for studies of socially induced stress responses. | white-footed mice, peromyscus leucopus, possess several characteristics which make them interesting subjects for the experimental study of social interactions and stress physiology: tolerance of very high cage densities among social congeners; marked behavioral intolerance among social strangers; exceptionally large adrenal glands; and adrenal and eosinophil responses sensitive to social disturbance. | 1964 | 14075716 |
| variation in the weight of the adrenal, pituitary and thyroid gland of the white-footed mouse, peromyscus maniculatus. | 1964 | 14109486 | |
| botfly parasitism in the brush mouse and white-footed mouse in the ozarks. | 1965 | 14275230 | |
| unseasonal breeding in artificial colonies of peromyscus leucopus. | 1965 | 5838228 | |
| effects of cuterebra angustifrons on plasma proteins of peromyscus leucopus. | 1965 | 5848808 | |
| adrenal weight in prairie deer mice (peromyscus maniculatus bairdii) and white-footed mice (peromyscus leucopus noveboracensis). | 1967 | 6070648 | |
| cell proliferation in the intestinal epithelium of peromyscus leucopus after 1, 3, 10, and 35 days' exposure to 56 r-day whole-body 60co gamma irradiation. anl-7409. | 1967 | 5308240 | |
| restricted perceptual experience effects on the later avoidance behavior of two subspecies of deermice, peromyscus leucopus and peromyscus polionotus. | 1968 | 5642540 | |
| circadian activity rhythm of the deer mouse, peromyscus: effect of deuterium oxide. | chemical modification of a vertebrate activity rhythm, the circadian (approximately 24-hour) rhythm of peromyscus leucopus noveboracensis, has been demonstrated. activity in a running wheel was used to measure the rhythms of mice kept individually in conditions of continuous darkness. deuterium oxide was presented in the drinking water. the length of the periods of rhythm increased directly and linearly with the increase in concentration of deuterium oxide. there is no threshold for this effect, ... | 1968 | 5647846 |
| progeny from experimental mating tests with mice of the peromyscus leucopus group. | 1968 | 5670806 | |
| a comparison of the water balance of the forest deer mouse and the white-footed mouse. | 1968 | 5675583 | |
| anaphylaxis in peromyscus leucopus mice. | 1968 | 5239927 | |
| histological, histochemical, and cytological observations on the adrenal gland of the wild white-footed mouse, peromyscus leucopus. | 1968 | 4178465 | |
| components of variance of odontometric traits in a wild-derived population of peromyscus leucopus. | 1968 | 28562855 | |
| lability of tail length of the white-footed mouse, peromyscus leucopus noveboracensis. | 1970 | 5455373 | |
| giardiosis in a wild mouse (peromyscus leucopus) colony. | 1970 | 5465574 | |
| helminths from peromyscus leucopus and p. maniculatus in west virginia. | 1971 | 5090963 | |
| techniques used in the study of the white-footed mouse under semi-natural conditions. | 1972 | 5043485 | |
| the effect of acth, group caging, and adrenalectomy in peromyscus leucopus with emphasis on suppression of reproductive function. | 1972 | 4336902 | |
| carbonic anhydrase polymorphism in a new jersey population of the white-footed mouse peromyscus leucopus. | two electrophoretic forms of erythrocytic carbonic anhydrase were found to be controlled by one autosomal locus with two codominant alleles, ca(f) and ca(8). the gene frequencies for the ca(f) and ca(8) alleles were found to be.15 and.85, respectively, in a sample of 53 mice from middlesex county, new jersey. the observed genotypic frequencies indicated that the population was in hardy-weinberg equilibrium. | 1972 | 4625749 |
| the amount of maternal care in peromyscus leucopus and its thermal significance for the young. | 1972 | 4654241 | |
| response to cecropia cocoons of mus musculus and two species of peromyscus. | in rural areas cocoons of overwintering hyalophora cecropia spum close to the ground are opened and the pupae eaten by small mammals, but in urban areas, where cecropia populations are much larger, the cocoons are almost never opened by mammals. peromyscus leucopus noveboracensis and p. maniculatus bairdii are abundant in rural areas, but are largely replaced by mus musculus in urban areas. in laboratory experiments p. l. noveboracensis invariably opened cecropia cocoons and ate the pupae. p. m. ... | 1972 | 28306859 |
| genetic control of two esterase enzymes in peromyscus leucopus. | 1973 | 4698912 | |
| histological characterization of "epinephrine" and "norepinephrine" cells in the adrenal medulla of the white-footed mouse, peromyscus leucopus. | 1973 | 4715234 | |
| reactions of deer mice (peromyscus maniculatus) and white-footed mice (peromyscus leucopus) to homospecific and heterospecific urine odors. | 1973 | 4737448 | |
| effect of simultaneous exposure to differences in photoperiod and temperature on the seasonal molt and reproductive system of the white-footed mouse, peromyscus leucopus. | 1973 | 4145530 | |
| seasonal spontaneous torpor in the white-footed mouse, peromyscus leucopus. | 1973 | 4145702 | |
| seasonal changes in thermogenesis, organ weights, and body composition in the white-footed mouse,peromyscus leucopus. | 1. seasonal adjustments in wild-caughtperomyscus leucopus include autumn increases in basal metabolic, nonshivering thermogenesis, and interscapular brown fat and decreases in weights of gonads, liver, adrenal glands, and total lipid. body weight and nonextractable dry weight do not change. 2. basal metabolic rate, nonshivering thermogenesis, and interscapular brown fat increase following initial cold exposure in mid-september and are maintained at similar levels through january. 3. there is a p ... | 1973 | 28308572 |
| an early unilateral thymic lymphoma in a postirradiated white-footed mouse, peromyscus leucopus. | 1974 | 4810212 | |
| relationships among three criteria of puberty in peromyscus leucopus noveboracensis. | 1974 | 4857269 | |
| daily torpor in peromyscus leucopus on an adequate diet. | 1975 | 237662 | |
| elimination of 137-cs and 59-fe and its relationship to metabolic rates of wild small rodents. | elimination of 137-cs and 59-fe by three species of wild rodents was measured in laboratory and field experiments to determine whether excretion rates of these nuclides are influenced directly by general metabolic (co-2 production) rates. sigmodon hispidus and peromyscus leucopus were used in both field and laboratory experiments, and reithrodontomys humulis was investigated only in the laboratory. final-component biological half-lives (tb) of 59-fe for sigmodon averaged 108 days in winter, 144 ... | 1975 | 1133569 |
| copulatory behavior of white-footed mice (peromyscus leucopus). | 1975 | 1141775 | |
| some quantitative relationships of certain nidicolous acari and the white-footed mouse, peromyscus leucopus. | 1975 | 1181437 | |
| relationships of immature dermacentor variabilis (say) (acari: ixodidae) with the white-footed mouse, peromyscus leucopus, in southwestern wisconsin. | 1975 | 1195285 | |
| effects of a polychlorinated biphenyl (pcb) on sleeping times, plasma corticosteroids, and testicular activity of white-footed mice. | forty adult male white-footed mice (peromyscus leucopus) were divided into four equal groups and fed diets containing 0, 100, 200 or 400 p.p.m. of a polychlorinated biphenyl (pcb) for 2 weeks. pcb ingestion increased liver weights and reduced pentobarbital-induced sleeping times at all levels tested, indicating increased hepatic microsomal enzyme activity. plasma corticoid levels, seminal vesicle weights and testicular spermatozoa numbers were reduced at the 400 p.p.m. level. | 1975 | 811460 |
| melatonin induced changes in gonads; pelage and thermogenic characters in the white-footed mouse, peromyscus leucopus. | 1976 | 5240 | |
| human babesiosis: reservoir in infection on nantucket island. | examination of blood films from six species of rodents and lagomorphs on nantucket island disclosed infections with babesia microti in all of five microtus pennsylvanicus (field mice) and 31 of 39 peromyscus leucopus (white-footed or deer mice). six human cases of clinical babesiosis have recently been diagnosed on the island. | 1976 | 769166 |
| influence of stimuli from populations of peromyscus leucopus on maturation of young. | 1976 | 932570 | |
| prevalence of cuterebrid parasitism among woodmice in virginia. | botfly infestation was analyzed in 1319 small mammals from varied habitats and elevations in upland virginia, 1972-1974. adult cuterebra fontinella were reared from bots infesting the woodmouse (peromyscus leucopus). of 651 woodmice, 199 (30.6%) were infested at least once. the season of bot infestation extended from may through november of all years, with peak prevalence (mean 42.2%) in august. infestation in woodmice was general over a 2000 km2 study area during peak months. significantly grea ... | 1976 | 933308 |
| reproduction during two annual cycles in a population of peromyscus leucopus noveboracensis. | 1976 | 965848 | |
| intraspecific aggression of peromyscus leucopus. | 1976 | 986814 | |
| human babesiosis on nantucket island: transmission by nymphal ixodes ticks. | in order to identify potential vectors of human babesiosis (babesia microli) in southern massachusetts, i attempted to transmit the infection via nymphal ticks of that species found to be most abundant on reservoir hosts (peromyscus leucopus) in nature. mice were collected at frequent intervals throughout a year in a known enzootic focus on nantucket island, and ticks were removed by hand. ticks of only two species were present; larvae and nymphs of ixodes scapularis were about 10 times as numer ... | 1976 | 1008124 |
| experimental infection of north american mammals with epidemic venezuelan encephalitis virus. | eighty-three wild mammals of ten species were inoculated with a first mouse passage level venezuelan encephalitis (ve) virus isolated from south texas in 1971 during the ve outbreak. rodents were highly susceptible to ve infection and circulated ve virus at levels ranging from 10(7.7) to 10(11.5) suckling mouse intracranial lethal doses per ml for 2 to 4 days. these levels of virus could easily infect vector mosquitoes. mortality was high in all species of rodents except sigmodon hispidus, adult ... | 1976 | 1008132 |
| relationships of the white-footed mouse, peromyscus leucopus, and its associated fleas (siphonaptera) in southwestern wisconsin. | 1976 | 1011239 | |
| age-dependence of body weight and linear dimensions in adult mus and peromyscus. | head plus body length (hbl), tail length (tl) and body weight (bw) were measured on two species of small myomorph rodents, mus musculus and peromyscus leucopus, throughout adult life. both sexes of mus show about a 15 per cent increase of hbl and tl between 5 and 24 months of age, and a bw increase of about 47 per cent. there is no age-trend of hbl in either sex of peromyscus between 5 and 67 months of age, while tl increases about 7 per cent. in both species, cessation of skeletal growth is fol ... | 1976 | 1261874 |
| effect of cold exposure on water requirements on three species of small mammals. | water turnover rate (wtr) was determined from tritiated water (3h2o) loss in the short-tailed shrew (blarina brevicauda), red-backed vole (clethrionomys gapperi), and white-footed mouse (peromyscus leucopus). when given ad libitum water at ta of 20 degrees, b. brevicauda, c. gapperi, and p. leucopus turned over 16.2, 13.8, and 6.2 ml/day, respectively; minimum wtr was 9.9, 7.8, and 3.5 ml/day, respectively. when they were given ad libitum water at 5 degrees c, wtr was 1.4 to 1.6 times higher tha ... | 1977 | 330486 |
| cross-species fostering: effects on the olfactory preference of onychomys torridus and peromyscus leucopus. | 1977 | 849226 | |
| effects of parental environment on the prevalence of convulsive seizures in onychomys torridus. | male and female southern grasshopper mice (onychomys torridus) were reared in 1 of 3 different parental environments: (a) with the natural male and female parents; (b) with the female parent only; or (c) with foster parents of a closely related species, peromyscus leucopus. all mice were weaned at 25 days of age, then observed individually in an open field arena at 10-day intervals from 30 to 100 days of age. twenty-seven of 59 subjects (45.8%) that were reared by the natural parents exhibited c ... | 1977 | 873066 |
| longevity, aging and comparative cellular and molecular biology of the house mouse, mus musculus, and the white-footed mouse, peromyscus leucopus. | 1978 | 343832 | |
| estrous cycle regulation in the whitefooted mouse (peromyscus leucopus) with special reference to vaginal cast formation. | the estrous cycle of the whitefooted mouse (peromyscus leucopus) was consistent with those described for most small rodents and closely resembled that of the house mouse and the rat in timing. the presence of the male did not accelerate puberty nor induce cycle synchrony, but was critical in establishing cycle regularity. females isolated from influences of males never attained a pattern of concistent cycle length. development of the vaginal epithelium during estrus was excessive in both isolate ... | 1978 | 564988 |
| statistical analysis of urinary delta-aminolevulinic acid (alau) excretion in the white-footed mouse associated with lead smelting. | alau in white-footed mice trapped in the vicinity of a lead smelter has been measured to study the biological effect of lead smelting operations and the rate at which the alau level diminishes after removing animals from contaminated environments. the statistical method which has been developed for this purpose shows that the alau levels are initially higher among animals near the smelter and diminish to a common level after 5-6 weeks. the statistical method is generally applicable to a variety ... | 1978 | 722203 |
| erythema chronicum migrans and lyme arthritis: field study of ticks. | ticks were collected during 1977 in communities east of the connecticut river where there was a high incidence of erythema chronicum migrans and lyme arthritis and were compared with collections from a similar area 20 km west of the river where cases of the disease were rare. ixodes scapularis was much more abundant on the east side than on the west. immature i. scapularis were 13 times more abundant on white-footed mice (peromyscus leucopus), and adult i. scapularis 16 times more abundant on wh ... | 1978 | 727201 |
| the relationship between lipid and reproductive cycles of a subtropical population of peromyscus leucopus. | 1978 | 750634 | |
| patterns in twelve reproductive parameters for the white-footed mouse (peromyscus leucopus). | 1978 | 750635 | |
| on the evolution of litter size in peromyscus leucopus. | 1978 | 28564099 | |
| effects of gonadal steroids on agonistic behavior of female peromyscus leucopus. | 1979 | 573236 | |
| odontomas in peromyscus leucopus. | a colony of peromyscus leucopus was established 15 years ago from animals trapped in the deciduous forest at argonne national laboratory, argonne, illinois. a roentgenographic survey of the skeletons of 189 of these untreated animals dying during a 13-month period disclosed 48 odontogenic growths in 21 of the mice. these growths were diagnosed on histopathologic examination as complex odontomas, the incidence of which was higher in males than in females. in this relatively small sample, these be ... | 1979 | 287830 |
| longevity, stability and dna repair. | the functional capacity of a cell, tissue, organ, or organism is dependent upon its ability to maintain the stability of its unit components. the higher the differentiated state of the system, the greater the amount of stability required to maintain that state as a function of time. stability can be achieved via either redundancy or repair. redundancy while easily achievable in biological systems is both costly and limited by thermodynamic considerations. repair, in its general sense, has no suc ... | 1979 | 374892 |
| effects of dietary dieldrin on behavior of white-footed mice (peromyscus leucopus) towards an avian predator. | 1979 | 444716 | |
| effects of some factors on the susceptibility of peromyscus leucopus to infestation by larvae of cuterebra fontinella (diptera: cuterebridae). | two levels of 3 factors, (1) host age, (2) host dietary state in regard to vitamin a, and (3) previous infestation history, were tested individually and in combinations for their effects on the susceptibility of peromyscus leucopus to infestation by larvae of the rodent bot fly, cuterebra fontinella. previous infestation was the only significant single factor. previously uninfested (pu) mice usually were more susceptible to infestation than previously infested (pi) mice. interactions of age and ... | 1979 | 448615 |
| acute toxicity and effects of sublethal dietary exposure of monosodium methanearsonate herbicide to peromyscus leucopus (rodentia: cricetidae). | 1979 | 465771 | |
| effect of sublethal dietary exposure of monosodium methanearsonate herbicide on the nest-building behavior of the white-footed mouse, peromyscus leucopus. | 1979 | 497440 | |
| intraerythrocytic parasites in rodent populations of connecticut: babesia and grahamella species. | a total of 612 peromyscus leucopus, 11 microtus pennsylvanicus, 21 clethrionomys gapperi, and 4 tamias striatus was collected in connecticut and examined for babesia and grahamella during 1976 and 1977. babesia antibodies were detected in sera of 9 p. leucopus collected from 4 sites. babesia parasites were not detected in the blood smears of captured rodents. subsequent splenectomy and subinoculation of blood from these rodents into susceptible animals failed to induce disease and no babesia was ... | 1979 | 512755 |
| transmission studies with sarcocystis idahoensis of deer mice (peromyscus maniculatus) and gopher snakes (pituophis melanoleucus). | transmission studies with sarcocystis idahoensis of deer mice (peromyscus maniculatus) and gopher snakes (pituophis melanoleucus) were conducted to determine host specificity of various stages of the parasite. sporocysts were not passed by four dogs or four cats fed infected skeletal muscle from deer mice. seven white mice (mus musculus) and 34 white-footed mice (peromyscus leucopus) were negative for sarcocysts and liver meronts following oral inoculation with s. idahoensis sporocysts; however, ... | 1980 | 6776292 |
| aging and ovarian function in the white-footed mouse (peromyscus leucopus) with specific reference to the development of preovulatory follicles. | a study was made of the effects of increasing age on uterine histology, follicular development and steroidogenesis within the ovary of the white-footed mouse (peromyscus leucopus). the animals were autopsied on each day of the estrous cycle and ranged from 14 to 49 mos. of age. the data indicated that the animals maintained estrous cycles throughout their lifespan as judged by cyclic changes in uterine histology. in addition these studies showed that aging (1) did not alter ovarian concentration ... | 1980 | 7191810 |
| aggressive behavior during the reproductive cycle of female peromyscus leucopus: effects of encounter site. | 1980 | 7192547 | |
| antigonadal effects of melatonin in white-footed mice (peromyscus leucopus). | 1980 | 7193487 | |
| effects of advancing age on hypothalamic-hypophysial-testicular functions in the male white-footed mouse (peromyscus leucopus). | 1980 | 6994828 | |
| effects of advancing age on the hypothalamic-pituitary-ovarian axis of the female white-footed mouse (peromyscus leucopus). | peromyscus leucopus, with an average lifespan of 48 months, showed unchanged levels of serum luteinizing hormone (lh), estradiol, progesterone, and pituitary lh and prolactin, between the ages of 12 and 48 months. hypothalamic lh-releasing hormone (lhrh), norepinephrine and dopamine also remained unchanged with advancing age. ovarian and uterine weight decreased with age, although the changes in uterine weight were not statistically significant. these data indicate that the hypothalamic-pituitar ... | 1980 | 7000517 |
| native trichinosis in wild rodents in henrico county, virginia. | encapsulated larvae of trichinella spiralis were found in wild-trapped, microtus pennsylvanicus and sigmodon hispidus. in addition, peromyscus leucopus and mus musculus again were found infected. these mammals were trapped from a farm site in henrico county, virginia, remote from known potential sources of trichinosis. the possible zoonotic relationship between wild rodent trichinosis and swine trichinosis is discussed. | 1980 | 7001047 |
| intraperitoneal transmitters in suckling white-footed mice, peromyscus leucopus. | intraperitoneal transmitter implantation in suckling white-footed mice, peromyscus leucopus, was studied. postnatal morphological development varied. age ranged from 9 to 16 days, and body weight ranged from 4.4 to 7.3 g. interference by mothers prevented successful implantation on sucklings which retained their neonatal appearance. growth was measured in 6 sucklings for 21 days. observed growth rates based on daily weight gain per 24 h were 0.29 and 0.32 g for implanted and control mice, respec ... | 1980 | 7213956 |
| temperature regulation in the mouse, peromyscus leucopus: effects of various photoperiods, pinealectomy and melatonin administration. | 1980 | 7364518 | |
| methods for detecting babesia microti infection in wild rodents. | we compared various methods for detecting babesia microti infection in white-footed mice (peromyscus leucopus) captured in enzootic regions of massachusetts. the most sensitive method tested involved inoculating blood from wild rodents into hamsters. one month postinoculation proved to be the optimal time for microscopically examining blood of inoculated hamsters. with this method, as few as 300 organisms produced patent infection. prior splenectomy of hamsters did not increase susceptibility to ... | 1980 | 7365625 |
| photoperiodic regulation of reproductive development in white-footed mice (peromyscus leucopus). | 1980 | 7397311 | |
| effects of temperature, photoperiod, and daily torpor on thyroid function in the white-footed mouse, peromyscus leucopus. | 1980 | 7409461 | |
| inheritance and expression of esterase-1 allozymes in peromyscus leucopus. | we analyzed inheritance of 5 es-1 alleles in p leucopus and found them to be co-dominant and segregating from a single autosomal locus, thereby verifying assumptions of mendelian inheritance implicit in field data. we also described an allele that is 'silent' in hemolysate, but is active in liver extract. | 1980 | 7418791 |
| effect of photoperiod and melatonin on testicular development in the white-footed mouse, peromyscus leucopus. | at autopsy the absolute and relative testicular weights of 6-week-old white-footed mice were significantly lower (p < 0.001) in animals exposed to a short photoperiod (8l : 16d) or exposed to a long photoperiod (16l : 8d) and treated with a 1 mg melatonin s.c. implant than in those kept only in a long photoperiod. the long photoperiod animals had tests of normal appearance and complete spermatogenesis, but there had been little development in the testes of the other animals and seminiferous tubu ... | 1980 | 7431321 |
| photoperiodic regulation of the testes of adult white-footed mice (peromyscus leucopus). | 1980 | 7448286 | |
| optimal foraging: the responses of peromyscus leucopus to experimental changes in processing time and hunger. | food density, degree of hunger prior to foraging, and food processing difficulty were varied in order to determine their effects on the diet diversity of captive peromyscus leucopus foraging for buried seeds. no relationship was found between diet diversity and food density. however, diet diversity exhibited a significantly positive relationship with hunger, and a significantly negative relationship with seed processing time. these results strongly support optimal foraging theory. | 1980 | 28310630 |
| multiple responses to different photoperiods occur in the mouse, peromyscus leucopus. | 1. peromyscus leucopus exhibits multiple responses to different daylengths. the winter molt and gonadal regression are complete in populations chronically exposed to 12, 11, 10, or 9 h of light per day while hypertrophy of brown fat and occurrence of daily torpor were greater in mice on 9 or 10 h of light when compared to animals on 11 or 12 h photocycles. 2. a precise "critical" daylength is not observed in this species for gonadal regression, occurrence of daily torpor, or hypertrophy of brown ... | 1980 | 28309556 |
| on the activity and fidelity of chromatin-associated hepatic dna polymerase-beta in aging murine species of different life spans. | activity and accuracy of chromatin-directed dna replication have been compared in young and aged mus musculus and peromyscus leucopus, two murine species with contrasting maximum lifespans. chromatin isolated from livers of mature adults of both species copied efficiently exogenous dna templates using predominantly dna polymerase-beta. the dna synthetic activity of liver chromatin remained constant in both species throughout their lifetimes. the fidelity of chromatin-directed poly [d(a-t)] synth ... | 1981 | 7217221 |
| effects of daily melatonin injections on female reproduction in the white-footed mouse, peromyscus leucopus. | 1981 | 7262537 | |
| migratory kinetics of cuterebra fontinella (diptera: cuterebridae) in the white-footed mouse, peromyscus leucopus. | larvae of the rodent botfly, cuterebra fontinella, follow a consistent migration route thorough their natural host, the white-footed mouse, peromyscus leucopus. larvae that enter the eye or nares spend about 48 hr in the nasal cavity and then follow a caudally oriented path that leads through the nasal passage, trachea, thoracic and abdominal cavities, and ends in the subcutaneous tissues of the posteroventral abdominal region. larvae that enter mice through the anus or by injection into the sub ... | 1981 | 7264830 |
| photoperiodic regulation of reproduction in postpartum peromyscus leucopus. | 1981 | 7272403 | |
| effects of 18 weeks of daily melatonin injection on reproduction and temperature regulation in the mouse, peromyscus leucopus. | mice injected daily with 50 microgram of melatonin, 12 hr after lights on, for 18 weeks, underwent gonadal regression after 4-7 weeks and reproductive recrudescence after 15 weeks. most treated animals molted to the winter pelt after 9-11 weeks of injections, and 2 of the 10 mice experienced bouts of daily torpor after 14 weeks. | 1981 | 7288388 |
| melatonin: identification of sites of antigonadal action in mouse brain. | long-term implants releasing a small quantity of melatonin (45 nanograms per day) were used to determine the brain sites of the hormone's antigonadal action in a photoperiodic species, the white-footed mouse (peromyscus leucopus). implants in the medial preoptic and supra- and retrochiasmatic areas elicited completed gonadal regression after 7 weeks. implants in other brain regions had little effect on the animals' reproductive state. | 1981 | 7292016 |
| capillary supply of skeletal muscles from acclimatized white-footed mice peromyscus. | winter-acclimatized white-footed mice (peromyscus leucopus) can increase their aerobic heat production under cold stress by 70%. the possibility that changes in microvascular supply might account, in part, for some of this increased thermogenic capacity was examined in one of the primary thermogenic tissues, skeletal muscle. capillaries were stained histochemically in four hindlimb muscles of freshly captured peromyscus in summer and winter. capillary density, mean fiber area, and mean capillari ... | 1981 | 7304781 |
| effect of geographical origin on the photoperiodic control of reproduction in the white-footed mouse, peromyscus leucopus. | 1981 | 7306637 | |
| mucus-secreting glands and goblet cells in the trachea of the deer mouse, peromyscus leucopus. | 1981 | 7324325 | |
| reservoir hosts of human babesiosis on nantucket island. | the host range of babesia microti was studied on nantucket island in order to identify the enzootic reservoir of this human pathogen. white-footed mice (peromyscus leucopus) were more frequently parasitized than were other indigenous animals. infection was ubiquitous in locations where deer were abundant. mice were most frequently parasitemic during spring and summer and adults more frequently than juveniles. parasitemia, which was rarely intense, was sustained for as long as 4 months. mice live ... | 1981 | 7020449 |
| brief report prolactin-induced aggression in female peromyscus leucopus. | 1981 | 7197915 | |
| effect of long or short photoperiod on pineal melatonin content in the white-footed mouse, peromyscus leucopus. | 1981 | 7198175 | |
| endemicity of spotted fever group rickettsiae in connecticut. | to compare rickettsial infectivity and seropositivity rates against spotted fever group (sfg) rickettsiae, ticks and wild mammals were collected from three areas where rickettsia rickettsii was thought to be enzootic in connecticut during 1978-1979, and from four additional sites (with no reported human cases) between 1976 and 1979. of the 1,001 dermacentor variabilis examined by the hemolymph test, 59 (5.9%) contained rickettsia-like organisms; direct immunofluorescence tests verified the prese ... | 1981 | 6789690 |
| effects of intermittent 60-hz high voltage electric fields on metabolism, activity, and temperature in mice. | transient effects of 100-kv/m extremely low frequency electric fields were studied in the white footed deermouse, peromyscus leucopus. gross motor activity, carbon dioxide production, oxygen consumption, and core body temperature were monitored before, during, and after intermittent field exposures (four hour-long exposures, at one-hour intervals). thirty-four mice were exposed in cages with plastic floors floating above ground potential, and 21 mice were exposed in cages with grounded metal flo ... | 1981 | 6798977 |