| muellerius capillaris (mueller, 1889) (nematoda: protostrongylidae): an unusual finding in rocky mountain bighorn sheep (ovis canadensis canadensis shaw) in south dakota. | lungs and fecal samples from nine hunter-killed rocky mountain bighorn sheep were examined for lungworms. all samples contained adults and/or larvae of muellerius capillaris (mueller, 1889). protostrongylus spp., the lungworms commonly reported from bighorn sheep, were not present in any samples. larvae of m. capillaris bear a spine on the dorsal side of the posterior end and are shorter than dorsal-spined larvae of other lungworms recorded from north american ungulates. larvae similar in shape ... | 1984 | 6530714 |
| relationships among fecal lungworm loads, fecal glucocorticoid metabolites, and lamb recruitment in free-ranging rocky mountain bighorn sheep. | most wild rocky mountain big-horn sheep (ovis canadensis canadensis) in northern latitudes are infected with lungworms. indirect effects of lungworms on bighorn sheep are unknown, but high pulmonary burdens might increase stress (i.e., elevated glucocorticoid levels), and chronic stress could in turn decrease fitness. we hypothesized that high lungworm burdens in rocky mountain bighorn ewes increase stress, thereby increasing lamb mortality. to test our hypothesis, one subherd of bighorn sheep i ... | 2005 | 16107677 |