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Articles 152431 - 152460 of 159604
Full-Text Articles in Entire DC Network
Adult Cestodes From The Coelomic Cavity Of The Teid Lizard, Cnemidophorus Sexlineatus, Wesley L. Shoop, John J. Janovy Jr.
Adult Cestodes From The Coelomic Cavity Of The Teid Lizard, Cnemidophorus Sexlineatus, Wesley L. Shoop, John J. Janovy Jr.
John J. Janovy, Jr. Publications
In a survey of 64 Cnemidophorus sexlineatus, adult cestodes identified as Oochoristica bivitellobata with gravid proglottids were found in the coelomic cavity of two hand caught specimens at Cedar Point Biological Station, Ogallala, Nebraska, during June and July 1977. Two O. bivitellobata were found free in the coelom of a male lizard, whereas four were found in the coelom and one in the intestine of a female. No ruptures were found in the walls of the intestines of all lizards examined. In addition, 61 O. bivitellobata were found in the intestine of nine (14%) of the C. sexlineatus with …
Distribution Of Two Species Of Long-Eared Bats Of The Genus Myotis On The Northern Great Plains, J. Knox Jones Jr., Jerry R. Choate
Distribution Of Two Species Of Long-Eared Bats Of The Genus Myotis On The Northern Great Plains, J. Knox Jones Jr., Jerry R. Choate
University of Nebraska State Museum: Mammalogy Papers
Two long-eared species of the cosmopolitan bat genus Myotis, the long-eared myotis (Myotis evotis) and the fringe-tailed myotis (Myotis thysanodes), have been known for many years from the Northern Great Plains. Material acquired in the last decade or so, however, reveals a somewhat different distributional pattern for the two species than had been supposed on the basis of specimens obtained earlier, some of which have been misidentified in the published literature.
Front Matter, Vol. 20 No. 5
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Bats Of Guadeloupe, Robert J. Baker, Hugh H. Genoways, John C. Patton
Bats Of Guadeloupe, Robert J. Baker, Hugh H. Genoways, John C. Patton
University of Nebraska State Museum: Mammalogy Papers
The bat fauna of the Lesser Antillean chain is of considerable interest because it is composed of a depauperate extension of the South American fauna, species that have a widespread distribution in the Antilles, and a few species that are endemic to the Lesser Antilles (Baker and Genoways, 1978). Relative to bat speciation and diversity, Guadeloupe is probably the most important island of the Antillean chain.
This report is concerned with the natural history and systematics of the 11 chiropteran species known from Guadeloupe, three of which are endemic. Comments concerning systematic relationships are based on specimens that we collected …
Vertical Banding And Associated Behavioral Responses Evoked By Electrical Stimulation Of The Brain In Anesthetized And Free-Swimming Sunfishes, Lepomis Cyanellus And L. Macrochirus, Diana Hoenke Bauer
Vertical Banding And Associated Behavioral Responses Evoked By Electrical Stimulation Of The Brain In Anesthetized And Free-Swimming Sunfishes, Lepomis Cyanellus And L. Macrochirus, Diana Hoenke Bauer
Biology ETDs
A pattern of dark vertical bands is a characteristic display by Lepomis cyanellus and L. macrochirus. The rapidity with which this display can appear and disappear indicates that it is neurally controlled. This study was carried out in order to identify regions in the brain involved in the control of this color pattern and to determine other behavior patterns associated with electrical stimulation of these regions. Initially, anesthetized fish which were held in a stereotaxic device were stimulated electrically at various sites in the brain to locate regions where vertical banding could be evoked. In subsequent tests, immovable electrodes were …
Determination Of Critical Habitat For The Whooping Crane
Determination Of Critical Habitat For The Whooping Crane
Endangered Species Bulletin
The Service determines Critical Habitat for the whooping crane (Grus americana). an Endangered species, in the States of Colorado, Idaho, Kansas, Nebraska, New Mexico, Oklahoma, and Texas. This rule provides Federal protection of these areas under Section 7 of the Endangered Species Act of 1973 and is taken to assure the conservation of the whooping crane.
The Use Of Rat Liver Cell Cultures For The Isolation Of Histoplasma Capsulatum Darling, Allen Robert Riebau
The Use Of Rat Liver Cell Cultures For The Isolation Of Histoplasma Capsulatum Darling, Allen Robert Riebau
Morehead State Theses and Dissertations
A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Allen Robert Riebau on May 12, 1978.
Requirement For Protein Synthesis In Adrenocorticotropin Stimulated Steroidogenesis Of Isolated Rat Adrenal Cells, John G. Menke
Requirement For Protein Synthesis In Adrenocorticotropin Stimulated Steroidogenesis Of Isolated Rat Adrenal Cells, John G. Menke
Morehead State Theses and Dissertations
A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by John G. Menke on May 6, 1978.
PiñOn Pine Cone Assessment By The Clark's Nutcracker, Nicifraga Columbiana, Donna Christine Cole
PiñOn Pine Cone Assessment By The Clark's Nutcracker, Nicifraga Columbiana, Donna Christine Cole
Biology ETDs
Clark's Nutcrackers (Nucifraga columbiana) rely heavily on seeds of pinon pine (Pinus edulis) as a winter food supply in years of good seed production. During late summer and autumn these birds spend considerable time and energy harvesting seeds from green, unopened cones. I tested abilities of three groups of wild-caught birds to discriminate cone quality: (1) adults, (2) experiences juveniles, and (3) naive juveniles. The birds were given choice tests with two cones, three cones, and cones that had been painted. Under controlled conditions nutcrackers discriminated between cones of differing quality. Adults assessed cones more accurately than did juveniles in …
Observing Elephants In Africa, Richard Van Gelder
Observing Elephants In Africa, Richard Van Gelder
Elephant
Field research notes from Botswana and Kenya in 1977-78.
Elephant Interest Group Questionnaire, Elephant Editors
Elephant Interest Group Questionnaire, Elephant Editors
Elephant
Form for consideration for the Elephant Interest Group.
Elephant Interest Group - Membership List, Elephant Editors
Elephant Interest Group - Membership List, Elephant Editors
Elephant
Mailing List for the Elephant Interest Group. This document contains sensitive personal information and is therefore not openly available on this site. Please contact the administrators for details.
Quantitative And Qualitative Analysis Of The Periphyton Of Sloan’S Crossing Pond, Mammoth Cave National Park, Kentucky, Judith Orser
Quantitative And Qualitative Analysis Of The Periphyton Of Sloan’S Crossing Pond, Mammoth Cave National Park, Kentucky, Judith Orser
Masters Theses & Specialist Projects
Periodic collections were obtained from Sloan’s Crossing Pond, Mammoth Cave National Park, for one year to analyze, quantitatively and qualitatively, the periphyton community and determine patterns of periodicity. Productivity was measured by dry and ash-free dry weights and chlorophyll a content.
Productivity was lowest during the winter months and highest between July and September. Dry weight showed a range of 3.0-243 mg/m2/day, the peak occurring in August. Ash-free dry weight also reached its annual peak in August at 92 mg/m2/day. Chlorophyll a followed the pattern of dry weight except its peak was obtained in July at …
Ecotypic Differentiation In Ohio & Mississippi Populations Of Acer Negundo L., Anthony Greco
Ecotypic Differentiation In Ohio & Mississippi Populations Of Acer Negundo L., Anthony Greco
Masters Theses & Specialist Projects
Laboratory investigations of Acer negundo populations from two widely separated habitats revealed distinct patterns of ecotypic differentiation in budbursting, leaf fall, and chlorophyll levels. Second year seedlings of Mississippi seed origin had complete leaf emergence before any evidence of budbursting in the Ohio progeny of similar age. Leaf fall patterns showed a clear difference between the two populations with Ohio plants dropping their leaves 2.5 weeks prior to complete defoliation in the Mississippi progeny. Significant differences in chlorophyll levels were demonstrated with the more northern (higher latitude) Ohio population showing consistently greater amounts of chlorophyll per gram dry weight than …
Kentucky Warbler (Vol. 54, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 54, No. 2), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
An Analysis Of The Heavy Metal Content Of The Scales Of Several Fishes In Southwestern Kentucky, Thomas Dahl
An Analysis Of The Heavy Metal Content Of The Scales Of Several Fishes In Southwestern Kentucky, Thomas Dahl
Masters Theses & Specialist Projects
Scales of the stoneroller, Campostoma anomalum (Rafinesque), common shiner, Notropus cornutus (Mitchill), and the bluntnose minnow, Pimephales notatus (Rafinesque) were analyzed by means of atomic absorption spectrophotometry to determine levels of cadmium, calcium, copper, iron, lead, manganese, nickel and zinc. Metal concentrations were determined seasonally and relationship established between scale metal content and environmental water metal levels.
Calcium, iron manganese and zinc were found in all samples analyzed. Cadmium, copper, lead and nickel were not observed in measurable quantities.
Metal concentrations varied interspecifically, but most showed little fluctuation in response to increased metal content of the water. Elemental composition of …
The Induction Of Thy -1.2 Antigen Expression In Murine Bone Marrow Cells Incubated In Vitro With Immune Serum, Terry Knight
The Induction Of Thy -1.2 Antigen Expression In Murine Bone Marrow Cells Incubated In Vitro With Immune Serum, Terry Knight
Masters Theses & Specialist Projects
Adult BALB/c mice were immunized with C57BL/6 spleen cells first on day 0 and again on day 8 of the experimental procedure. Serum was collected from these animals on day 0 (before the first immunization), day 4, day 8 (before the second immunization), day 12, and day 16. Two groups of normal BALB/c bone marrow cell suspensions were incubated with the experimental immune sera: and one of the groups of cell suspensions was subsequently incubated with bacterial lipopolysaccharide. Following the incubation steps, both groups of cell preparations were assayed for their ability to absorb the activity of the anti-Thy-1.2 serum. …
The Effect Of Spleen Cells From F1 Hybrid Mice Undergoing A Graft-Versus Most Reaction Upon The Humoral Immune Response Of Parental Mice, Elizabeth Schmidt
The Effect Of Spleen Cells From F1 Hybrid Mice Undergoing A Graft-Versus Most Reaction Upon The Humoral Immune Response Of Parental Mice, Elizabeth Schmidt
Masters Theses & Specialist Projects
Mice undergoing a graft-versus-host reaction (GVHR) exhibit a surppressed immune response. Cells responsible for this suppression have been found to be localized in the spleen. Thus, in this research, a study was made to evaluate the effect of spleen cells from F1 mice undergoing a GVHR upon the humoral immune response to sheep erythrocytea (SRBC) in parental mice. An attempt was made to create an experimental model involving the transfer of suppressor cells in vivo. Parental BALB/c spleen cells were injected into (C57BL X BALB/c)F1 hybrids to induce a GVH disease. Ten or twenty days later, spleen …
Potpourri, Elephant Editors
Potpourri, Elephant Editors
Elephant
Acknowledgments, back issues, information about mascot Ahmed.
Residues Of Carbofuran Applied As A Systemic Insecticide In Irrigated Wetland Rice: Implications For Insect Control, J. N. Seiber, Elvis A. Heinrichs, G. B. Aquino, S. L. Valencia, P. Andrade, A. M. Argente
Residues Of Carbofuran Applied As A Systemic Insecticide In Irrigated Wetland Rice: Implications For Insect Control, J. N. Seiber, Elvis A. Heinrichs, G. B. Aquino, S. L. Valencia, P. Andrade, A. M. Argente
Department of Entomology: Faculty Publications
The behavior of carbofuran residues in rice plants treated by broadcast, soil incorporation, and root-zone application,and by seedling root-soak and root-coat technique was studied. Placement of insecticide in gelatin capsules in the root zone gave good persistence (about 60 days) and leaf residue (as much as 45 ppm at 10 days after treatment). Among the methods tested it also controlled early season pests best and gave the highest grain yields. Soil incorporation and root-zone placement with a liquid-band applicator was also more efficient than paddy-water broadcast in getting insecticide to the plant; soil incorporation provided slightly longer persistence (60 days) …
Inhibition Of Normal Human Eosinophil Chemotaxis By Iga Myeloma Paraproteins, Kathleen J. Reed
Inhibition Of Normal Human Eosinophil Chemotaxis By Iga Myeloma Paraproteins, Kathleen J. Reed
Biology ETDs
Previous studies have been shown that IgA paraproteins suppress human neutrophil chemotaxis. This investigation was undertaken to determine the effect of isolated IgA myeloma component (IgA-MC) on eosinophil chemotaxis. The data presented here indicate that IgA myeloma sera inhibit eosinophil chemotaxis, and demonstrate that the IgA-MC is responsible for this chemotactic inhibitory activity (CIA). Chemotactic inhibition was cell directed and was lost following pepsin digestion or dithiothreitol reduction alkylation of the IgA-MC. Polymeric IgA was shown to be the most effective inhibitor of eosinophil chemotaxis as determined by Sephadex G-200 gel filtration chromatography and sucrose density gradient centrifugation. Both isolated …
Physiochemical Studies Of Newly Synthesized Dna During Stable Dna Replication In Escherichia Coli, Mary Sroka-Richardson
Physiochemical Studies Of Newly Synthesized Dna During Stable Dna Replication In Escherichia Coli, Mary Sroka-Richardson
Biology ETDs
The DNA synthesized during stable DNA replication (i.e., DNA replication in the absence of protein synthesis following a period of thymine starvation) was found to be alkali or RNase sensitive. Experiments were performed using both alkaline and neutral cell lysis and gradient sedimentation. Initial results under alkaline conditions revealed much smaller size DNA material than would normally be expected. This data was interpreted to show a reduced rate of DNA chain growth. However, under neutral conditions the DNA material was found to be nearly normal in size. The presence of an alkali-sensitive componant (RNA) was suspected and tested for with …
A Note From The Editor, Jeheskel Shoshani
A Note From The Editor, Jeheskel Shoshani
Elephant
Dr. Shoshani introduces the newsletter and documents increasing interest and support.
Tentative Agenda For The Upcoming Meeting Of The Eig, Elephant Editors
Tentative Agenda For The Upcoming Meeting Of The Eig, Elephant Editors
Elephant
Agenda for the EIG's meeting during the 58th Annual meeting of the ASA, Athens, GA, June 13-17, 1977.
Known Elephant Numbers And Distribution In Africa, Iain Douglas-Hamilton
Known Elephant Numbers And Distribution In Africa, Iain Douglas-Hamilton
Elephant
Map and Population table detailing known elephant population in Africa as of 1978.
General Information On Elephants With Emphasis On Tusks, Jehskel Shoshani
General Information On Elephants With Emphasis On Tusks, Jehskel Shoshani
Elephant
A brief encyclopedic entry on elephants in general.
Bibliography, Elephant Editors
Bibliography, Elephant Editors
Elephant
Selected bibliography covering references from 1970 - mid-1977.
Distribution Of Etheostoma Nigrum Rafinesque, Etheostoma Olmstedi Storer, And Their Introgressive Hybrid Populations In The James River Drainage, John Edward Clark
Distribution Of Etheostoma Nigrum Rafinesque, Etheostoma Olmstedi Storer, And Their Introgressive Hybrid Populations In The James River Drainage, John Edward Clark
Master's Theses
An analysis of proportional measurements and meristic characters of Etheostoma nigrum and E. olmstedi identified five populations within the James River drainage. Etheostoma nigrum inhabited the montane and piedmont areas through the Fall Line; E. o. atromaculatum was distributed throughout the tidal river and its lower tributaries; and E. o. olmstedi was restricted to creeks on the upper coastal plain. Appomattox River and Falling Creek contained introgressive hybrid populations with character frequency distributions intermediate to those of E. nigrum and E. o. olmstedi. It is proposed that E. nigrum probably entered these drainages through stream piracy on piedmont tributaries of …
Antipredative Function Of The Gelatinous Coating Of The Eggs Of The Frog, Rana Pipiens, Walter Stanley Jennings
Antipredative Function Of The Gelatinous Coating Of The Eggs Of The Frog, Rana Pipiens, Walter Stanley Jennings
Master's Theses
The eggs of Rana pipiens, the southern leopard frog, were offered in several forms to Lepomis macro chirus, the bluegill. The fish were offered random trial discrimination tests while in groups of one or five in 40 1 aquaria. L. macrochirus learned to make distinct discriminations and rejected fertilized and unfertilized egg masses, boiled egg masses, dried frog eggs and gelatin made with homogenated frog eggs. In contrast, Shrimp-el-etts, Shrimp-el-etts dyed black, gelatin made with peptone, and ovarian eggs were accept ed readily. The results suggest a protective function for the gelatinous coat: both physical and chemical . The chemical …
Front Matter, Elephant Editors