| adaptation to cold: energy metabolism in an atypical lagomorph, the arctic hare (lepus arcticus). | | 1973 | 4750284 |
| trace elements in marine birds, arctic hare and ringed seals breeding near qikiqtarjuaq, nunavut, canada. | | 2004 | 15234883 |
| heavy metal accumulation in arctic hares (lepus arcticus) in nunavut, canada. | accumulation of cadmium, mercury, lead, copper and zinc was studied in muscle, liver and kidney of 9 adult and 7 juvenile arctic hares (lepus arcticus), collected in 2003 in the southwestern part of nunavut, canada. our objective was to determine the level of heavy metal accumulation, and distribution among age groups and tissue. concentrations of all metals varied among tissues, and concentrations of cd, hg and zn were higher in adults compared to juveniles. we found correlations in metal conte ... | 2006 | 16843520 |
| enhancement of local species richness in tundra by seed dispersal through guts of muskox and barnacle goose. | the potential contribution of vertebrate-mediated seed rain to the maintenance of plant community richness in a high arctic ecosystem was investigated. we analyzed viable seed content in dung of the four numerically most important terrestrial vertebrates in northeast greenland - muskox (ovibos moschatus), barnacle goose (branta leucopsis), arctic fox (alopex lagopus) and arctic hare (lepus arcticus). high numbers of plant propagules were found in the dung of muskox and barnacle goose. seeds of m ... | 2008 | 17990003 |
| transfer parameter values in temperate forest ecosystems: a review. | compared to agricultural lands, forests are complex ecosystems as they can involve diverse plant species associations, several vegetative strata (overstorey, shrubs, herbaceous and other annual plant layer) and multi-layered soil profiles (forest floor, hemi-organic and mineral layers). a high degree of variability is thus generally observed in radionuclide transfers and redistribution patterns in contaminated forests. in the long term, the soil compartment represents the major reservoir of radi ... | 2009 | 19100665 |
| assessment of doses to game animals in finland. | a study was carried out to assess the dose rates to game animals in finland affected by the radioactive caesium deposition that occurred after the accident at the chernobyl nuclear power plant in ukraine in 1986. the aim of this assessment was to obtain new information on the dose rates to mammals and birds under finnish conditions. dose rates were calculated using the erica assessment tool developed within the ec 6th framework programme. the input data consisted of measured activity concentrati ... | 2013 | 23395135 |
| resource partitioning by mammalian herbivores in the high arctic. | willow (salix arctica) and sedges (carex stans and eriophorum triste) were the dominant plants available as forage for herbivores in the high arctic of greenland. willow leaves were of high quality as forage in early stages, of phenology, but crude protein and digestibility declined markedly by late stages whereas sedges, remained high in forage quality throughout the growing season. densities of fecal pellets indicated that muskoxen (ovibos moschatus) made heaviest use of sedge-dominated vegeta ... | 1994 | 28313731 |
| comparative anatomy and systematic implications of the turbinal skeleton in lagomorpha (mammalia). | in order to elucidate the systematic relevance of the turbinal skeleton in lagomorpha the ethmoidal regions of 6 ochotonid, 21 leporid, and 2 outgroup species (sciurus vulgaris, tupaia sp.) species were investigated by high-resolution computed tomography (μct). number and shape of turbinals correspond to major clades and to several genera. all lagomorpha under study have a deeply excavated nasoturbinal that is continuous with the lamina semicircularis; a feature likely to be an autapomorphy of l ... | 2014 | 25312363 |
| persistent organic pollutants in marine birds, arctic hare and ringed seals near qikiqtarjuaq, nunavut, canada. | | 2005 | 15664039 |
| heavy metal bioaccumulation and histopathological alterations in wild arctic hares (lepus arcticus) inhabiting a former lead-zinc mine in the canadian high arctic: a preliminary study. | a preliminary study was undertaken to determine post-mining baseline accumulation of selected trace metals, and histopathological alterations in free-living arctic hares (lepus arcticus) inhabiting the vicinity of a former lead-zinc mine located on north baffin island in the canadian high arctic. trace metal analysis included measurement of as, cd, fe, pb and zn in tissues, and histopathological assessment comprised of evaluation and scoring the severity of metal-induced hepatic and renal lesion ... | 2016 | 26974573 |
| interspecific x-chromosome and mitochondrial dna introgression in the iberian hare: selection or allele surfing? | introgression from a resident species into an invading one is predicted to occur through the demographic process of "allele surfing," and to particularly affect genomic regions transmitted by the lower migrating sex, such as mtdna. this could explain that northern iberian populations of lepus granatensis harbor high frequencies of mtdna from l. timidus, an arctic hare it replaced there after deglaciation. we report that variation of introgressed timidus-like mtdna reflects several predicted effe ... | 2011 | 21729051 |
| hares on ice: phylogeography and historical demographics of lepus arcticus, l. othus, and l. timidus (mammalia: lagomorpha). | phylogeographical investigations of arctic organisms provide spatial and temporal frameworks for interpreting the role of climate change on biotic diversity in high-latitude ecosystems. phylogenetic analyses were conducted on 473 base pairs of the mitochondrial control region in 192 arctic hares (lepus arcticus, lepus othus, lepus timidus) and two individual lepus townsendii. the three arctic hare species are closely related. all l. othus individuals form one well-supported clade, l. arcticus in ... | 2005 | 16101770 |
| the flexibility of an intermediate feeder: dietary selection by mountain hares measured using faecal n-alkanes. | herbivores with an intermediate feeding strategy either vary their diet between a grazing (bulk roughage feeders) or browsing (concentrate selectors) strategy on a seasonal basis or select a mixed diet at any one time. the underlying ecological causes of the seasonal dietary shift in a small non-ruminant intermediate feeder - the mountain or arctic hare (lepus timidus l.) were determined. diet composition and selection relative to availability were investigated for 41 individual free-ranging mou ... | 2001 | 28547597 |
| limited dietary overlap amongst resident arctic herbivores in winter: complementary insights from complementary methods. | snow may prevent arctic herbivores from accessing their forage in winter, forcing them to aggregate in the few patches with limited snow. in high arctic greenland, arctic hare and rock ptarmigan often forage in muskox feeding craters. we therefore hypothesized that due to limited availability of forage, the dietary niches of these resident herbivores overlap considerably, and that the overlap increases as winter progresses. to test this, we analyzed fecal samples collected in early and late wint ... | 2018 | 29700632 |
| corrigendum to "heavy metal bioaccumulation and histopathological alterations in wild arctic hares (lepus arcticus) inhabiting a former lead-zinc mine in the canadian high arctic: a preliminary study" [sci. total environ. 556 (2016) 252-263]. | | 2019 | 31465926 |