| reservoirs of giardia spp. in southwestern alberta. | a survey of potential hosts of giardia spp. was carried out during 1982 and 1983 in the kananaskis valley and banff national park, alberta, canada. diagnosis was based mainly on fecal analysis but a few animals were examined at necropsy and scrapings from the small intestine analyzed. a total of 304 specimens was examined from humans (homo sapiens l.) and a variety of animal species. cysts and/or trophozoites of giardia were found in 10.5% of the specimens examined. positive samples were found f ... | 1984 | 6397598 |
| annual and seasonal changes in diets of martens: evidence from stable isotope analysis. | theory predicts that generalist predators will switch to alternative prey when preferred foods are not readily available. studies on the feeding ecology of the american marten (martes americana) throughout north america suggest that this mustelid is a generalist predator feeding largely on voles (microtus sp.; clethrionomys sp.). we investigated seasonal and annual changes in diets of martens in response to the changing abundance of small rodents (peromyscus keeni, and microtus longicaudus) on c ... | 1997 | 28308005 |
| resource selection of a montane endemic: sex-specific differences in white-bellied voles (microtus longicaudus leucophaeus). | resources that an individual selects contrasted against what is available can provide valuable information regarding species-specific behavior and ecological relationships. small mammals represent excellent study organisms to assess such relationships. isolated populations that exist on the edge of a species' distribution often exhibit behavioral adaptations to the extremes experienced by a species and can provide meaningful insight into the resource requirements of the species. we deployed radi ... | 2020 | 33166355 |
| metabolic and behavioral thermoregulation in the long-tailed vole, microtus longicaudus. | | 1971 | 5581373 |
| phylogeography of a post-glacial colonizer: microtus longicaudus (rodentia: muridae). | the molecular phylogeography of microtus longicaudus was investigated with dna sequences of the mitochondrial cytochrome b gene. we used phylogenetic and pairwise distance methods to reconstruct the history of the species with particular emphasis on the pacific northwest. genetic variation across the species was consistent with vicariant events during the pleistocene and subsequent northern postglacial expansion following the receding laurentide and cordilleran ice sheets. the largest break (> 6 ... | 2000 | 10672160 |
| phylogeographic structure in long-tailed voles (rodentia: arvicolinae) belies the complex pleistocene history of isolation, divergence, and recolonization of northwest north america's fauna. | quaternary climate fluctuations restructured biodiversity across north american high latitudes through repeated episodes of range contraction, population isolation and divergence, and subsequent expansion. identifying how species responded to changing environmental conditions not only allows us to explore the mode and tempo of evolution in northern taxa, but also provides a basis for forecasting future biotic response across the highly variable topography of western north america. using a multil ... | 2016 | 27777736 |
| bank voles (myodes glareolus) and house mice (mus musculus musculus; m. m. domesticus) in europe are each parasitized by their own distinct species of aspiculuris (nematoda, oxyurida). | the molecular phylogeny and morphology of the oxyuroid nematode genus aspiculuris from voles and house mice has been examined. worms collected from myodes glareolus in poland, eire and the uk are identified as aspiculuris tianjinensis, previously known only from china, while worms from mus musculus from a range of locations in europe and from laboratory mice, all conformed to the description of aspiculuris tetraptera. worms from voles and house mice are not closely related and are not derived fr ... | 2015 | 26302680 |
| living on the edge: exploring the role of coastal refugia in the alexander archipelago of alaska. | although islands are of long-standing interest to biologists, only a handful of studies have investigated the role of climatic history in shaping evolutionary diversification in high-latitude archipelagos. in this study of the alexander archipelago (aa) of southeast alaska, we address the impact of glacial cycles on geographic genetic structure for three mammals co-distributed along the north pacific coast. we examined variation in mitochondrial and nuclear loci for long-tailed voles (microtus l ... | 2019 | 30847072 |