| seasonal occurrence and reproductive status of opisocrostis bruneri (siphonaptera: ceratophyllidae), a flea on franklin's ground squirrel, spermophilus franklinii (rodentia: sciuridae) near birds hill park, manitoba. | eight hundred and forty-nine and 1,503 opisocrostis bruneri (baker) were removed from spermophilus franklinii (sabine) in 1982 and 1983, respectively. two discrete peaks in mean intensity of infestation were observed, one in early may and one in late august to early september. overall prevalence of o. bruneri on s. franlinii was > or = 0.75. the observed biweekly prevalence on adult male and female squirrels was always > or = 0.73 and > or = 0.67, respectively. all juvenile squirrels were infest ... | 1994 | 8158613 |