123,940 research outputs found
Farm & Home Science Vol. 10 No. 1, March 1949
Severe Newcastle disease outbreak causes serious losses to Utah poultry industry, by W. H. Binns H. M. Nielsen, and M. L. Miner 1
Home and farmstead planning 2
Investigation show variations in grading in turkey processing plants by R. H. Ander on 3
Six year of agricultural research 4
Red clover produces both a forage and a seed crop by R. J. Evans 5
Actual grazing trials prove new pasture mixtures potentially high producing, by G. Q. Bateman, W. Keller and J. E. Packer 6
Irrigation and drainage problem in the Lewiston area by J. S. Willams J. H. Maughan and O. W. Israelsen 8
Removal of alt by leaching found feasible and economical at Delta, by D. F. Peter on, Jr. R. C. Reeve, and L. E. Allison 10
Quality and yield of winter wheat only slightly affected by use of 2,4-D In weed control by D. C. Tingey 12
Dipping gives better control of sheep ticks than dusting, by T. Tibbetts and C. J. Sorenson 14
Insecticides not effective in control of curly top in tomatoes 16
Surface arsenic occurrence on some plants attractive to bees by T. C. Yao and G. F. Knowlton 18
New spectrograph laboratory completed, by M. C. Cannon 2
Beavers Alter Stream Macroinvertebrate Communities in Northeastern Utah
Understanding changes in macroinvertebrate communities is important because they play a large role in stream ecosystem functioning, and they are an important food resource for fish. Beaver‐induced changes to stream morphology could alter macroinvertebrate communities, which in turn could affect food webs and ecosystem function. However, studies investigating the effects of North American beaver activities on macroinvertebrates are rare in the inter‐mountain west, an area with high potential for beaver‐assisted restoration. The aim of this study was to quantify differences in the macroinvertebrate community between unaltered segments of streams and within beaver ponds in north‐eastern Utah, U.S.A. We assessed macroinvertebrate species richness, biomass, density, functional feeding group composition, mobility group composition, and macroinvertebrate habitat characteristics to test the hypothesis that macroinvertebrate communities will differ among habitat types (undammed stream segments and beaver ponds) in beaver‐occupied streams. Beaver pond communities significantly differed from lotic reach communities in many ways. Beaver ponds were less diverse with 25% fewer species. Although there was variability among streams, in general, beaver ponds had 75% fewer individuals and 90% lower total macroinvertebrate biomass compared to lotic reaches. Regarding functional feeding groups, beaver ponds contained more engulfers, while lotic reaches contained more scrapers, filterers, and gatherers. For mobility groups, beaver ponds had more sprawlers, while lotic reaches had more clingers. Swimmers were also more prevalent in lotic reaches, although this is probably due to the abundance of Baetis within lotic reaches. More beaver pond taxa were classified as lentic‐dwelling insects, while more lotic reach taxa were categorised as preferring lotic habitats. The creation of ponds by beavers fundamentally altered the macroinvertebrate community in north‐eastern Utah streams. Such changes to stream macroinvertebrate communities suggest that recolonisation of beavers across North America may be altering stream functioning and food webs. Our study highlights the need to further investigate the effects of beaver recolonisation on stream communities
THE PRAIRIE NATURALIST Volume 20, No.3. September 1988
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
MOVEMENTS OF ADULT STRIPED BASS TRACKED IN WILSON RESERVOIR, KANSAS ▪ K. E. Hampton, T. L. Wenke, and B. A. Zamrzla
GROWTH, POPULATION STRUCTURE, AND MORTALITY OF CHANNEL CATFISH FROM THE POWDER RIVER AND CRAZY WOMAN CREEK, WYOMING ▪ J. B. Smith and W. A. Hubert
HABITAT USE BY WHITE-TAILED DEER IN PRAIRIE-AGRICULTURAL HABITAT IN MONTANA ▪ G. L. Dusek, A. K. Wood, and R. J. Mackie
BEAVER CROP DEPREDATION IN EASTERN SOUTH DAKOTA ▪ C. D. Dieter and T. R. McCabe
CHARACTERISTICS OF BALD EAGLE WINTER ROOSTS IN WYOMING ▪ S. H. Anderson and C. T. Patterson
ACUTE ASPERGILLOSIS IN MALLARDS AT OAHE SEEP NEAR PIERRE, SOUTH DAKOTA ▪ W. C. Bair, S. G. Simpson, and R. M. Windingstad
BATS AND BIRDS STUCK ON BURDOCK ▪ M. K. McNicholl
EFFECTS OF GRAZING ON WESTERN SNOWBERRY COMMUNITIES IN NORTH DAKOTA ▪ D. R. Kirby, G. M. Sturn, and T. A. Ransom-Nelson
NOTES
First Record of the Least Weasel in Oklahoma ▪ B. S. Clark and B. K. Clark
Breeding Season of the Northern Grasshopper Mouse in Kansas ▪ R. M. Pitts, J. R. Choate, and M. J. Smolen
Armadillo in Northeastern Colorado ▪ J. R. Choate and J. B. Pinkham
Two Deer Mice Captured Simultaneously in a Museum Special Snap Trap ▪ G. A. Kaufman and D. W. Kaufman
BOOK REVIEWS
Badgerland Birds ▪ C. A. Faanes
A Primer For Wildlife Modeling ▪ D. H. Johnson
PATRONS AND SPONSORS ▪ Editor
Mailing Date: September 29, 198
A Check List of the Lepidoptera of Beaver Creek State Park, Columbiana County, Ohio
Results of a comprehensive survey of Lepidoptera occurring at a 12,334 hectare natural area in Columbiana County. Ohio conducted in 1985 and 1990 is presented. Ten species of skippers, 27 species of butterflies and 597 species and forms of moths were identified and recorded. Euagrotis forbesi, and Spodoptera eridania had not previously been collected in Ohio; and Polia nimbosa and Idia laurenti have been designated as special interest since they are considered rare Ohio residents. The gypsy moth, Lymantria dispar was taken in bait traps and is the first record for that species in the Park. The presence of the gypsy moth, and the possibility of attempted eradication poses a definite threat to the survival of the species mentioned above with the exception of the southern army worm, S. eridama which was undoubtedly a fall migrant
PACKER: a switchbox router based on conflict elimination by local transformations
PACKER is an algorithm for switchbox routing, based on a novel approach. In an initial phase, the connectivity of each net is established without taking the other nets into account. In general, this gives rise to conflicts (short circuits). In the second stage, the conflicts are removed iteratively using connectivity-preserving local transformations. They reshape a net by displacing one of its segments without disconnecting it from the net. The transformations are applied in a asystematic way using a scan line technique. The results obtained by PACKER are very positive: it solves all well-known benchmark example
\u3ci\u3eTransactions of the Nebraska Academy of Sciences\u3c/i\u3e Table of Contents: Volume 26 (2000)
Editorial Contents
Nebraska Academy of Sciences Officers, Policy Committee .................... ii
Editorial Board .................... iv
Membership Objectives and Friends of the Academy .................... v
Nebraska Association of Teachers of Science .................... vi
Preparation of manuscripts .................... inside back cover
Papers
A floristic study and species checklist for the Republican River Valley in Nebraska, with emphasis on plants of concern for conservation (Steven J. Rothenberger) .................... 1
First record from Nebraska of the clam shrimp Eulimnadia diversa (Crustacea: Branchiopoda: Conchostraca) (David S. McLeod) .................... 17
Mitochondrial-DNA variation in pallid and shovelnose sturgeons, Scaphirhynchus (Pisces: Acipenseridae) (Richard Bischof and Allen L. Szalanski) .................... 19
Effects of age and groups size on habitat selection and activity level in Xenopus laevis tadpoles ( Danielle R. Golden, Geoffrey R. Smith, and Jessica E. Rettig) .................... 23
A checklist and distribution maps of the amphibians and reptiles of South Dakota (Royce E. Ballinger, Justin W. Meeker, and Marcus Thies) .................... 29
Mitochondrial-DNA variation within and among wild turkey (Meleagris gallopavo) subspecies ( Allen L. Szalanski, Kevin E. Church, David W. Oates, Richard Bischof, and Thomas O. Powers) .................... 47
Shifting distributional patterns of mammals in Nebraska (Russell A. Benedict, Hugh H. Genoways, and Patricia W. Freeman) .................... 55
Extralimital records of the Mexican free-tailed bat (Tadarida brasiliensis mexicana) in the central United States and their biological significance (Hugh H. Genoways, Patricia W. Freeman, and Carey Grell) .................... 85
Population trends in furbearers in Nebraska (L. M. Landholt and Hugh H. Genoways) .................... 9
The Ursinus Weekly, December 3, 1928
North campus improved by planting of trees • Chapel organ will be repaired during recess • College directors hold the annual fall meeting • Committees chosen for Schaff anniversary play • Ursinus overwhelmed by Schuylkill warriors 54-6 • End of football season finds the bears behind • Hockey team ends season by 7-1 win over Beaver • Women\u27s dormitory committee asks for cooperation • Dr. W. H. Burk lectures about Valley Forge, Monday • College farms choose trade name for cattle • Annual frosh-soph game will be played Tuesday • Haverford institutes an incentive to more study • Webster Forensic Clubhttps://digitalcommons.ursinus.edu/weekly/2167/thumbnail.jp
Beaver bridge
“The Little Beaver Bridge is situated on the A. & P. R. R., 3 ¾ S. W. of Rolla it is built on the “Howe Truss” plan and spans a valley through which flows the “Little Beaver Creek” - it has two approaches (stringers supported by trestles), the length of the northern one is 38 ft., while that of the southern one is 35’5”. The bridge is composed of 5 spans and is supported on 6 piers; the length of the bridge proper is 687’ 2”, with the abutments it is 760’7”. The piers are of sandstone and have a batir, from about one half of their height to the top, of one inch to the foot. In consequence of the comparatively small size of the used in their construction, the Railroad Company has commenced to tear them down in order to erect larger piers. The dimensions of the new piers (for the bottom course) will be 13’1” x 30’ instead of 7’6” x 24’3” as in the old one - the batir will however in the new piers start from the second course. All the timber used in this bridge (except the ties which are oak) is white pine --pages 5-6
Binder 190, Schistosomatidae H-Z [Trematoda Taxon Notebooks]
Abstract
Binder 190, Schistosomatidae H-Z [Trematoda Taxon Notebooks].
Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln.
Created between 1960 and 1990
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