| permeability and channel structure of reptilian skin. | a study of the permeability of shed epidermis from some terrestrial and freshwater snakes was conducted. permeability to br, na, and k ions was very low and showed a higher influx than efflux in most cases. permeability to the smaller water molecule was much greater, and in contrast efflux was higher than influx. skins from aquatic snakes with larger water permeabilities also showed greater permeabilities to na and k. the highly aquatic regina septemvittata has the most permeable skin of any sna ... | 1982 | 6283901 |
| inter- and intraspecific variation in mercury bioaccumulation by snakes inhabiting a contaminated river floodplain. | although mercury (hg) is a well-studied contaminant, knowledge about hg accumulation in snakes is limited. the authors evaluated hg bioaccumulation within and among four snake species (northern watersnakes, nerodia sipedon; queen snakes, regina septemvittata; common garter snakes, thamnophis sirtalis; and rat snakes, elaphe obsoleta [pantherophis alleghaniensis]) from a contaminated site on the south river (waynesboro, va, usa) and two nearby reference sites. total hg (thg) concentrations in nor ... | 2013 | 23401211 |
| effects of snake fungal disease on short-term survival, behavior, and movement in free-ranging snakes. | pathogenic fungi are increasingly associated with epidemics in wildlife populations. snake fungal disease (sfd) is an emerging threat to snakes, taxa that are elusive and difficult to sample. thus, assessments of the impacts of sfd on populations have rarely occurred. we used a field technique to enhance detection, passive integrated transponder (pit) telemetry, and a multistate capture-mark-recapture model to assess sfd effects on short-term (within-season) survival, movement, and surface activ ... | 2020 | 33142002 |
| pathology associated with ophidiomycosis in wild snakes in ontario, canada. | ophidiomycosis (snake fungal disease) is the most common cause of skin lesions in free-ranging snakes in north america. naturally infected snakes with ophidiomycosis (9 carcasses, 12 biopsies) were examined grossly and histologically. these cases comprised 32% of the 66 snake cases submitted to the canadian wildlife health cooperative-ontario/nunavut node in 2012 through 2018. affected species included the eastern foxsnake (pantherophis vulpinus; n = 15), gray ratsnake (pantherophis spiloides; n ... | 2020 | 32879520 |