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Articles 37591 - 37620 of 39281
Full-Text Articles in Entire DC Network
Observations In Tsavo National Park, Kenya, Evans E. Mgaah
Observations In Tsavo National Park, Kenya, Evans E. Mgaah
Elephant
Personal observations from four years as a game ranger in Tsavo National Park, Kenya.
Captive Elephant Population Of North America: 1979 Update, Elephant Editors
Captive Elephant Population Of North America: 1979 Update, Elephant Editors
Elephant
Survey of elephants in captivity, 1979.
Observations Of Elephants In East And Southern Africa, Jeheskel Shoshani
Observations Of Elephants In East And Southern Africa, Jeheskel Shoshani
Elephant
Selected short observations on African elephants (Loxodonta africana) made during 1978 in East and Southern Africa.
Iucn/Wwf Help Wanted, Elephant Editors
Iucn/Wwf Help Wanted, Elephant Editors
Elephant
A published plea from the IUCN/World Wildlife Fund Conservation Programme in Indonesia asking for information regarding endangered elephants in Sumatra.
Ecotypic Differentiation Of Andropogon Virginicus L. In Relation To Strip Mine Spoil Banks, Valina Kay Hurt
Ecotypic Differentiation Of Andropogon Virginicus L. In Relation To Strip Mine Spoil Banks, Valina Kay Hurt
Masters Theses & Specialist Projects
Reciprocal plantings of populations of broomsedge, taken from an abandoned strip mine and from an abandoned farm plot in south central Kentucky, on strip mine spoil and abandoned field soil resulted in patterns of populations differentiation. Clonal plantings of populations from strip mine habitats and old field development appeared equal in height and biomass when grown on old field soils in both field trials and growth chamber studies. Populations when planted in strip mine soils in field trials and controlled growth experiments. Later flowering in strip mine populations may be a key to survival strategy in the harsh microclimates of …
Isolation & Enumeration Of Clostridium Perfringens From The Barren River Above & Below The Effluent Of The Bowling Green, Kentucky, Sewage Treatment Plant, Michael Hansen
Masters Theses & Specialist Projects
Samples from five sites on the Barren River were assayed during a one year period from March 1978 to February 1979 for the presence of Clostridium perfringens. These five sites were chosen in relation to their location to the effluent discharge pipe from the Bowling Green, Kentucky, sewage treatment plant. One collection site was located upstream from the discharge point; one station was directly from the mouth of the pipe; and three were located at intermittent points downstream from the discharge point.
When counts on the primary isolation medium, egg yolk-free tryptose-sulfite-cycloserine agar (EYF-TSC agar), were compared for each …
The Effects Of Ph On 5-Oxogluconate Production By Gluconobacter Suboxydans, Neng-Chyang Leu
The Effects Of Ph On 5-Oxogluconate Production By Gluconobacter Suboxydans, Neng-Chyang Leu
Masters Theses & Specialist Projects
The metabolism of glucose to 5-oxogluconate by Gluconobacter oxydans subsp. suboxydans (Gluconobacter suboxydans) at different pH values, glucose concentrations and phosphate buffer concentrations was studied. Bacterial growth, gluconic acid accumulation and 5-oxogluconate production were related to both pH and phosphate buffer concentration in the medium.
In media containing 2-3% glucose, 0.3% yeast extract and 0.3 M phosphate buffer, the optimal pH range for the bacterial growth was pH 6.4-7.0; the optimal pH range for gluconate production was pH 6.4-6.8; and the optimal pH range for 5-oxogluconate production was pH 6.6-7.0. Lowering the pH to 6.4 favored gluconate accumulation …
The Histopathology Of Acanthocephalan Infections In The Rainbow Darter, Etheostoma Caeruleum, J. Melissa Mcdonough
The Histopathology Of Acanthocephalan Infections In The Rainbow Darter, Etheostoma Caeruleum, J. Melissa Mcdonough
Masters Theses & Specialist Projects
Responses of naturally infected Etheostoma caeruleum to the presence of the acanthocephalans, Acanthocephalus dirus and Pomphorhynchus bulbocolli, were observed in 10u sections of intestines stained with hematoxylin and eosin. Both parasite species caused tissue damage to the host and elicited host responses. The major difference in parasite destruction was shallow tissue penetration by A. dirus proboscides while the proboscides of P. bulbocolli had deeper penetration and capsule formation. The most common parasite was P. bulbocolli, yet concurrent infections were not uncommon. Effects of concurrent infection were a combination of single species effects on the host. Connective tissue hyperplasia was …
A Taxonomic & Physiographic Survey Of Scirpus In Kentucky With Problem Species Complex Analysis, Sally Arnold
A Taxonomic & Physiographic Survey Of Scirpus In Kentucky With Problem Species Complex Analysis, Sally Arnold
Masters Theses & Specialist Projects
The genus Scirpus was analyzed according to species occurrence and physiographic distribution in the State of Kentucky. The morphology of three taxonomic problem complexes, Scirpus atrovirens-georgianus, Scirpus validus-acutus, and Scirpus cyperinus-eriophorum-pelius-pedicellatus was evaluated to determine whether or not their components are distinct among the Kentucky specimens. Remaining taxa were likewise evaluated and identified. A key to Scirpus in Kentucky and a taxonomic treatment are presented.
Some Aspects Of The Ecology Of Larval Fishes In Rough River Lake, Kentucky, Greg Allen Kindschi
Some Aspects Of The Ecology Of Larval Fishes In Rough River Lake, Kentucky, Greg Allen Kindschi
Masters Theses & Specialist Projects
In Rough River Lake, Kentucky, some aspects of the ecology of larval and juvenile fishes were investigated from April – August, 1978. Larval fishes were collected weekly from the upper reaches of the lake from the surface and bottom, during daylight and dark periods.
Twenty-three species and three categories of unknown larval and juvenile fishes, represented by 177,119 individuals, were collected. White bass and logperch larvae were the first to appear on April 15 with surface water temperatures of 18.5 C. Gizzard shad larvae dominated net collection while Lepomis spp. were the second most abundant. Larvae were primarily concentrated …
The Early Life History Of The White And Black Crappie In Rough River Lake, Kentucky, Gary Overmann
The Early Life History Of The White And Black Crappie In Rough River Lake, Kentucky, Gary Overmann
Masters Theses & Specialist Projects
Crappies spawned in Rough River Lake from April 29 to July 9. Larvae were first collected on May 3 when the lake temperature reached 17 C. A total of 7369 crappie was taken from may 3 to August 1. The maximum number of crappies occurred from May 30 to June 20. The developmental chronology was described for specimens 4.75 mm to 29 mm total length. Meristic characters averaged 10.8 for preanal myomere count, 21.1 for postanal myomere count, 31.9 for total myomere count and 0.62 for preanal length to postanal length ratio. Densities of larvae were low early in the …
Simultaneous Hermaphroditism And Sexual Selection, Eric Charnov
Simultaneous Hermaphroditism And Sexual Selection, Eric Charnov
Biology Faculty & Staff Publications
Theory about the evolution of sexual behavior in dioecious species is based on the general assumption that egg production is limited by a female's ability to garner resources to make eggs, not by a lack of sperm to fertilize them. Reproductive success for males is thus limited by access to females (and their eggs). I suggest that egg production by simultaneous hermaphrodites also obeys this principle--that fertilized egg production by an individual is not limited by sperm availability, but by resources allocated to eggs. If true, this suggests that sperm competition (reproduction success through male function) and a form of …
Elephant Symposium And Related Activities, Elephant Editors
Elephant Symposium And Related Activities, Elephant Editors
Elephant
Agenda for the upcoming Elephant Symposium at the American Society of Mammalogists 59th Annual Meeting, June 20th, 1979.
Information From The Elephant Interest Group Questionnaire, Elephant Editors
Information From The Elephant Interest Group Questionnaire, Elephant Editors
Elephant
Elephant-related activities of answering respondents to the newsletter's questionnaire.
Report On The Elephants Of Tongaland, Clive Walker
Report On The Elephants Of Tongaland, Clive Walker
Elephant
Report from a preliminary survey of elephants in Southern Africa by the Endangered Wildlife Trust Elephant Group.
Financial Report And Acknowledgments, Elephant Editors
Financial Report And Acknowledgments, Elephant Editors
Elephant
Accounting of the Elephant Interest Group for production of the journal.
Bibliography, Elephant Editors
Bibliography, Elephant Editors
Elephant
Updates to the selected bibliography covering references from 1970 - mid-1979.
Isolation Of Mycoplasma From The Genital Tracts Of Elephants, Harold W. Clark, Daniel C. Laughlin, Jack S. Bailey, Thomas Mcp Brown
Isolation Of Mycoplasma From The Genital Tracts Of Elephants, Harold W. Clark, Daniel C. Laughlin, Jack S. Bailey, Thomas Mcp Brown
Elephant
The authors report finding arthritogenic agents, mycoplasmas, for the first time in a large group of captive elephants that are frequently crippled with rheumatism.
Iucn Elephant Survey And Conservation Programme: Summary Of Interim Report On Elephants In Kenya, Alison K. K. Hillman
Iucn Elephant Survey And Conservation Programme: Summary Of Interim Report On Elephants In Kenya, Alison K. K. Hillman
Elephant
Preliminary summary of evidence on the status and population trends of elephants in Kenya, condensed from the original.
Klaserie Elephant Project: Progress Report, Clive Walker
Klaserie Elephant Project: Progress Report, Clive Walker
Elephant
Report from an aerial survey of elephant population in the Klaserie Private Nature Reserve in South Africa.
The Elephants Of Interview Island, Romulus Whitaker
The Elephants Of Interview Island, Romulus Whitaker
Elephant
Report from survey work on elephants living on the Andaman Islands in the Bay of Bengal, June, 1977.
Known Elephant Distribution In Africa: An Updated Map, Iain Douglas-Hamilton, Alison K.K. Hillman
Known Elephant Distribution In Africa: An Updated Map, Iain Douglas-Hamilton, Alison K.K. Hillman
Elephant
Map depicting the elephant distribution in Africa as of Spring 1979.
Suggested Mechanical Model Of Elephant Trunk Muscle Tissue And Its Sheer Conjecture, Norris Whitehall
Suggested Mechanical Model Of Elephant Trunk Muscle Tissue And Its Sheer Conjecture, Norris Whitehall
Elephant
A detailed simile modeling elephant trunk muscle tissue.
The Addo Elephant Research Project: A Brief Introduction, Anthony Hall-Martin
The Addo Elephant Research Project: A Brief Introduction, Anthony Hall-Martin
Elephant
Description of "an intensive research programme on the ecology, population dynamics, and behaviour" of elephants in the Addo Bush area of Cape Province, South Africa, launched in May 1976.
Ivory And Ivorine, Elephant Editors
Ivory And Ivorine, Elephant Editors
Elephant
Items from news and other reports relating to ivory and ivorine.
Iucn/Wwf Elephant Survey And Conservation Programme Questionnaire, Elephant Editors
Iucn/Wwf Elephant Survey And Conservation Programme Questionnaire, Elephant Editors
Elephant
A survey soliciting data from captive elephants.
Elephant Interest Group Questionnaire, Elephant Editors
Elephant Interest Group Questionnaire, Elephant Editors
Elephant
Form for consideration for the Elephant Interest Group.
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.
Elephants In The News, Elephant Editors
Elephants In The News, Elephant Editors
Elephant
"Motty"-- Birth of an African/Asian elephant at Chester Zoo; Elephants at the Washington Park Zoo, Portland, Oregon, USA; Elephants at the Knoxville Zoo, Knoxville, Tennessee, USA; "Dima"--26,000-year-old baby mammoth tissues are being studied at the University of California and Wayne State University, USA
Recent Correspondence, Elephant Editors
Recent Correspondence, Elephant Editors
Elephant
Letters from Pieter deVilliers, Richard Lair, and Norris Whitehill