| wolf milk. i. arctic wolf (canis lupus arctos) and husky milk: gross composition and fatty acid constitution. | | 1969 | 5406772 |
| natural west nile virus infection in a captive juvenile arctic wolf (canis lupus). | a case of west nile virus (wnv) infection in a captive 4-month-old arctic wolf (canis lupus) is described. the animal had vomiting, anorexia, and ataxia before death. histopathology revealed multifocal severe renal lymphoplasmacytic vasculitis, mostly affecting small arterioles, with fibrinoid degeneration of some vessel walls. many small foci of gliosis were detected in the cerebral cortex. west nile virus was demonstrated in the kidneys and cerebrum by immunohistochemistry and polymerase chain ... | 2004 | 15305745 |
| tp53 expressing squamous cell carcinoma of the tonsil in a captive polar wolf (canis lupus arctos). | the gross and histopathologic findings for a primary tonsillar squamous cell carcinoma in a captive 11-yr-old male polar wolf (canis lupus arctos) are described. the carcinoma had metastasized to regional lymph nodes of the pharynx, the precardial mediastinum, and the lungs. tumor suppressor protein tp53 was detected by immunohistochemistry in the nuclei of poorly differentiated, cytokeratin-positive cells of the primary neoplasm and the metastases. canine oral papillomavirus dna was not detecta ... | 2005 | 17312781 |
| dominance relationships in a family pack of captive arctic wolves (canis lupus arctos): the influence of competition for food, age and sex. | dominance is one of the most pervasive concepts in the study of wolf social behaviour but recently its validity has been questioned. for some authors, the bonds between members of wolf families are better described as parent-offspring relationships and the concept of dominance should be used just to evaluate the social dynamics of non-familial captive pack members (e.g., mech & cluff, 2010). however, there is a dearth of studies investigating dominance relationships and its correlates in wolf fa ... | 2016 | 27904806 |
| targeted capture and resequencing of 1040 genes reveal environmentally driven functional variation in grey wolves. | in an era of ever-increasing amounts of whole-genome sequence data for individuals and populations, the utility of traditional single nucleotide polymorphisms (snps) array-based genome scans is uncertain. we previously performed a snp array-based genome scan to identify candidate genes under selection in six distinct grey wolf (canis lupus) ecotypes. using this information, we designed a targeted capture array for 1040 genes, including all exons and flanking regions, as well as 5000 1-kb nongeni ... | 2016 | 26562361 |
| a method to assess relative preference for training and environmental enrichment in captive wolves (canis lupus and canis lupus arctos). | it is currently debated as to whether or not positive reinforcement training is enriching to captive animals. although both husbandry training and environmental enrichment (ee) have been found to benefit animal welfare in captivity, to date, no systematic investigation has compared an animal's preference for performing a trained behavior to engaging freely with a stimuli provided as ee. in the current paper, we used four captive wolves to (1) test the efficacy of a paired-stimulus preference ass ... | 2015 | 26274933 |
| mitral insufficiency in an arctic wolf. | | 2004 | 15372994 |
| oroclinal bending of the southern sierra nevada batholith. | structural, magmatic, and isotopic features of the southern sierra nevada batholith are deflected clockwise with respect to its central and northern parts. directions of magnetization at three localities in the southern sierra nevada are progressively deflected; this is consistent with the hypothesis that the region was tectonically rotated in an orocline. no paleomagnetic deflection was observed northwest of the white wolf-kern canyon fault system. oroclinal bending ofa block bounded by the san ... | 1985 | 17842695 |
| lumbar sympathectomy and cold acclimatization by the arctic wolf. | | 1973 | 4692116 |
| taxonomic differences of gut microbiomes drive cellulolytic enzymatic potential within hind-gut fermenting mammals. | host diet influences the diversity and metabolic activities of the gut microbiome. previous studies have shown that the gut microbiome provides a wide array of enzymes that enable processing of diverse dietary components. because the primary diet of the porcupine, erethizon dorsatum, is lignified plant material, we reasoned that the porcupine microbiome would be replete with enzymes required to degrade lignocellulose. here, we report on the bacterial composition in the porcupine microbiome using ... | 2017 | 29281673 |
| earlier springs enable high-arctic wolf spiders to produce a second clutch. | spiders at southern latitudes commonly produce multiple clutches, but this has not been observed at high latitudes where activity seasons are much shorter. yet the timing of snowmelt is advancing in the arctic, which may allow some species to produce an additional clutch. to determine if this is already happening, we used specimens of the wolf spider pardosa glacialis caught by pitfall traps from the long-term (1996-2014) monitoring programme at zackenberg, ne greenland. we dissected individual ... | 2020 | 32576114 |
| quantifying the biomagnification capability of arctic wolf and domestic dog by equilibrium sampling. | the mechanism underlying contaminant biomagnification is a decrease in the volume (v) and the fugacity capacity (z) of food during digestion in the gastrointestinal tract. traditionally, biomagnification is quantified by measuring contaminant concentrations in animal tissues. here, we present a proof-of-concept study to noninvasively derive the thermodynamic limit to an organism's biomagnification capability (biomagnification limit -bmflim) by determining the ratio of the v·z-products of undiges ... | 2020 | 32363860 |
| dual infection with an emergent strain of canine distemper virus and canine parvovirus in an arctic wolf under managed care. | a 6-wk-old managed male arctic wolf with lethargy, drooling, dehydration, elevated temperature, and acute onset of seizures was submitted for autopsy. the wolf had been vaccinated with a multivalent vaccine exactly 2 wk prior to presentation. grossly, long bones were brittle and easily fractured under pressure; the intestinal contents were mucoid and yellow. histologically, there was widespread lymphoid and hematopoietic necrosis, failure of endochondral ossification within long bones, as well a ... | 2019 | 31113289 |
| was the mw 7.5 1952 kern county, california, earthquake induced (or triggered)? | several recent studies have presented evidence that significant induced earthquakes occurred in a number of oil-producing regions during the early and mid-twentieth century related to either production or wastewater injection. we consider whether the 21 july 1952 mw 7.5 kern county earthquake might have been induced by production in the wheeler ridge oil field. the mainshock, which was not preceded by any significant foreshocks, occurred 98 days after the initial production of oil in eocene stra ... | 2017 | 29200935 |
| post-conflict opponent affiliation reduces victim re-aggression in a family group of captive arctic wolves (canis lupus arctos). | post-conflict affiliative interactions have been widely investigated in primates but not extensively in other species. using the post conflict-matched control (pc-mc) comparison method, this study investigated the patterns of post-conflict opponent affiliation (poa) of a captive family group of 19 arctic wolves (canis lupus arctos), investigating the correlation with various factors. we found that poas occurred mainly in the non-feeding context and more often when the victim was dominant and the ... | 2017 | 29108020 |