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Paulisentis Missouriensis Keppner, 1974 (Acanthocephala) In Creek Chubs, Semotilus Atromaculatus, Of Southeastern Nebraska, Richard L. Buckner, David F. Oetinger, Shareen C. Buckner

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Occurrence of the acanthocephalan Paulisentis missouriensis Keppner, 1974, in Semotilus atromaculatus of Richardson County, Nebraska, was monitored from September 1974 through July 1975. Six hundred nineteen fish were examined of which 78% were infected with 1 to 32 worms. A relatively high prevalence of infection, 72% to 81%, was noted throughout the study. There was no significant difference in the mean density of parasites between the months. Overall mean density was 4.0 (2.9 to 4.6). Fish of all lengths (35 mm to 215 mm standard length) were infected. Both prevalence and mean density increased as fish age/length increased. There were …

Relationships Between Vegetation, Soils, And Pocket Gophers In The Nebraska Sand Hills, Kathie J. Kajar Hirsch, James L. Stubbendieck, Ronald M. Case

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

A study was conducted at three locations in the Nebraska Sand Hills to determine if selected soil factors attracted or limited the local distribution of plains pocket gophers (Geomys bursarius). The study was also designed to determine the extent of range recovery for the first 3 yr following control of plains pocket gophers. Soil samples were collected from gopher-disturbed and undisturbed areas. Analyses showed that differences in organic matter content, pH, nitrate-nitrogen, phosphorus, and particle size were not great enough to influence distribution of pocket gophers within the research areas. Changes in vegetation were analyzed for 3 yr …

Transactions Of The Nebraska Academy Of Sciences Volume Xii (1984): Table Of Contents

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Nebraska Academy of Sciences, Officers, Policy Committee ......... ii

Editorial Board, Instructions to Contributors ......... v

Membership Objectives and Friends of the Academy ......... vi

Biological and Medical Sciences

Paulisentis missouriensis Keppner, 1974 (Acanthocephala) in creek chubs, Semotilus atromaculatus, of southeastern Nebraska (Buckner, Oetinger, and Buckner) ......... 1

Relationships between vegetation, soils, and pocket gophers in the Nebraska Sand Hills (K. J. Kjar Hirsch and J. Stubbendieck) ......... 5

Prevalence and relationships of two allocreadiid metacercariae in the burrowing mayfly, Hexagenia limbata (Serville in Guerin), of Bluestem Lake, Lancaster County, Nebraska (J. M. Moul) ......... 13

A bryological survey …

Evidence For Quaternary Piracy Of Pumpkin Creek, South-Central Morrill County, Nebraska, Robert F. Diffendal

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The occurrence of Quaternary anorthosite-rich sand and gravel deposits in south-central Morrill County, Nebraska, southeast of the mouth of Pumpkin Creek and south of the North Platte River suggests that the creek formerly flowed farther east than it does today. This eastern extension of the creek was abandoned when a headward-cutting tributary of the North Platte River eroded through the divide between Pumpkin Creek and the North Platte just east of Jail and Courthouse rocks, and captured Pumpkin Creek.

Herpetofaunas Of The Big Springs And Hornet's Nest Quarries (Northeastern Nebraska, Pleistocene: Late Blancan), Karel Rogers

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Two herpetofaunas of Late Blancan age from northeastern Nebraska were studied, Big Springs Quarry (AP 103) and Hornet's Nest Quarry (KX 127). Big Springs Quarry contains six amphibian species, three of which are extinct, and 25 reptilian species, two of which are extinct. Hornet's Nest Quarry contains seven species of amphibians, two of which are extinct, and 11 reptilian species, none of them extinct. The faunal assemblage is one that would be characteristic of southern Kansas today. The paleoecological interpretation of the two sites indicates that Hornet's Nest Quarry represents a moister and more wooded environment than Big Springs Quarry. …

The Early Oligocene (Chadronian) Raben Ranch Local Fauna, Northwest Nebraska: Multituberculata; With Comments On The Extinction Of The Allotheria, Gregg E. Ostrander

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The Raben Ranch Local Fauna of northwestern Nebraska is the largest and most diverse Early Oligocene (Chadronian) microfauna recovered from the High Plains. Within the microfauna is the largest accumulation of teeth referable to the Multituberculata yet recovered from rocks of Early Oligocene age. The age of the fauna is Middle Chadronian and, along with fossils from Flagstaff Rim in Wyoming, may represent the youngest known occurrence of the Allotheria. Forty-seven specimens referred to the genus Ectypodus are described, and comparisons are made with previously described teeth from the Chadronian of Wyoming and Saskatchewan. The data presented by the Raben …

Seeding Techniques For Alfalfa To Improve Subirrigated Meadows, Steven S. Waller, R. N. Gates, T. M. Hart, D. K. Schmidt, J. F. Samson

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Improving quality and quantity of forage harvested from poor condition, subirrigated hay meadows in the Nebraska Sand Hills is critical to the winter forage reserve of livestock producers. Alfalfa (Medicago sativa L.) is the most commonly used legume for meadow improvement. Broadcast seeding (11.2 kg/ha) was compared to sod seeding (11.2 kg/ha) as a method to introduce alfalfa into an alkaline subirrigated meadow (Fluvaquentic Haplustolls). Before seeding, the study area received 78.5 kg/ha phosphorous. Paraquat (0.29 kg/ha) was applied to one-half of the area to suppress plant competition and provide qualitative information on treatment consistency across a range of …

A Bryological Survey Of Southwestern Nebraska, Linda L. Spessard

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

During the summer of 1982, moss collections made in Chase, Dundy. Frontier, Furnas, Gosper, Hayes, Hitchcock, Hooker, Lincoln, Logan. McPherson, Perkins, and Red Willow counties of Nebraska comprised 21 species. These reports bring the number of moss species known from southwestern Nebraska to 27 in addition to 5 liverwort species.

Fossil Proboscidians And Myths Of Giant Men, James L. Hayward

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The early history of paleontology is replete with examples of misidentifications of fossils. Teeth and bones of mastodons and mammoths were especially apt to be identified as the remains of antediluvian giants. These fallacies were entertained not only by the uninformed, but also by the intellectual elite. Even today misidentified fossils are sometimes used as "evidence" for the former existence of giants.

The Historical And Archaeological Significance Of Medieval Bench End Carvings In Some Parish Churches In Suffolk, England, Anne J. Krush

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

In a region of East Anglia in southeastern England, there are approximately thirty-two Church of England stone churches that were built in the fourteenth and fifteenth centuries, unique because of their bench end carvings. Because literacy was low in many rural areas of the country in those days, other means besides literature were needed to instruct the "common man" in religious matters. Wood, especially oak, was in abundance and was used to construct and embellish the interior walls, pews, and roofs of the churches. Carving the wood was an art as well as an occupation for certain men, known as …

Prevalence And Relationships Of Two Allocreadiid Metacercariae In The Burrowing Mayfly, Hexagenia Limbata (Serville In Guerin), Of Bluestem Lake, Lancaster County, Nebraska, Jane Marie Moul

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

All naiads of the burrowing mayfly, Hexagenia limbata, examined from Bluestem Lake, Lancaster County, Nebraska, were infected by trematode metaccrcariae. The naiads hosted two species of trematode, Megaiogollia ictaluri Surber, 1928, and Crepidostolllum cooperi Hopkins, 1931. Three thousand sixty-three cysts from 24 mayflies were inspected to confirm their identity and to determine their distribution on the naiads.

Vegetative Key To Grasses Of The Sand Hills Region Of Nebraska, David M. Sutherland

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

All illustrated key is provided that will facilitate identification of grasses in the vegetative condition in the Sand Hills region of Nebraska. The key separates 97 species, varieties, and species groups and discusses or partially separates 14 additional taxa. It emphasizes characteristics that may be observed in the field with a hand lens and is illustrated with 109 camera lucida drawings.