Transactions of the Nebraska Academy of Sciences articles

Recent articles from Transactions of the Nebraska Academy of Sciences

A survey of antibiotic resistance among coliform bacteria isolated from the Missouri River.
April 1, 2004... ABSTRACT The prevalence of antibiotic resistant microorganisms in the environment is not well known but could represent a challenge to maintaining public health in the future. Fecal waste from livestock facilities, where antibiotics are routinely used, is recognized as a significant...

The freshwater mussels (mollusca: bivalvia: unionidae) of the Little Blue River drainage of northeastern Kansas and southeastern Nebraska.
April 1, 2004... ABSTRACT A survey in the Little Blue Basin documented the presence of 22 extant or extirpated unionid mollusk species. Bivalve habitat is severely impaired by surface and subsurface water withdrawals, erosion, siltation, and grazing. Chemical contaminants and other pollutants washed into...

Nodular masses in the swimbladder and visceral fat of the walleye, Stizostedion vitreum.
April 1, 2004... ABSTRACT In April of 1990, a 1.8 kg walleye was found to contain hard cysts or nodules in the swimbladder and visceral fat. The nodules appeared to be formed around a worm-like mass. The nodules (10 [+ or -] 5 mm in diameter) were composed of five to seven layers of tightly packed...

Least shrew (Cryptotis parva) in extreme West-Central Nebraska.
April 1, 2004... ABSTRACT During the past 35 years, the least shrew (Cryptotis parva) has expanded its distribution along riverine and other mesic corridors in western parts of its distribution, although some recently discovered populations in the West might represent relicts of a previous Pleistocene...

Seasonal activity and reproduction in bats of East-Central Nebraska.
April 1, 2004... ABSTRACT Information on seasonal activity and reproduction is presented for seven species of bats inhabiting east-central Nebraska (Eptesicus fuscus, Myotis septentrionalis, Nycticeius humeralis, Lasionycteris noctivagans, Lasiurus borealis, L. cinereus, and Pipistrellus subflavus)....