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Articles 1 - 24 of 24
Full-Text Articles in Life Sciences
Heligmosomoides Johnsoni Sp. Nov. (Nematoda: Heligmosomatidae) From The Heather Vole, Phenacomys Intermedius Merriam, Virginia R. Rausch, Robert L. Rausch
Heligmosomoides Johnsoni Sp. Nov. (Nematoda: Heligmosomatidae) From The Heather Vole, Phenacomys Intermedius Merriam, Virginia R. Rausch, Robert L. Rausch
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Heligmosomoides johnsoni sp. noy. is described from the cecum of the heather vole, Phenacomys intermedius Merriam, from the Olympic Mountains, Washington. The absence of longitudinal cuticular ridges dorsally separates H. johnsoni from species of Heligmosomoides other than H. hudsoni (Cameron, 1937), which occurs in varying lemmings, Dicrostonyx spp., and from which H. johnsoni is distinguished by its longer spicules, form of the dorsal ray, and other characters. Both Phenacomys and Dicrostonyx have a specialized cecum, with long villi around which the nematodes are found tightly coiled. The zoogeography of heligmosomid nematodes in Phenacomys is briefly discussed.
French abstract: On décrit …
Nsca - Asc - National Plan For Biological Collections, Asc Committee
Nsca - Asc - National Plan For Biological Collections, Asc Committee
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
American systematics collections: A national plan. Developed by a stellar group of biologists including David Wake and Peter Raven, this plan called for action by the systematics community. The estimate of needs in 1973 called for about 63 million USD for the next five years just to keep the US National Collections from disintegrating and to get them in shape to mount the huge effort needed to fully inventory the biota of the earth (a plan that was not even dreamed of until about the year 1995).
A report to the nation's systematics collections community, and includes a National Plan …
Diphyllobothrium Ursi From Man In British Columbia--First Report Of This Tapeworm In Canada, Leo Margolis, Robert L. Rausch, E. Robertson
Diphyllobothrium Ursi From Man In British Columbia--First Report Of This Tapeworm In Canada, Leo Margolis, Robert L. Rausch, E. Robertson
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
A case of human infection in British Columbia by the tapeworm Diphyllobothrium ursi is reported and the likely source of infection is discussed. This is the first report of D. ursi in Canada and the third from humans.
The Effects Of Soil Salinity And Meloidoflyne Javanica On Tomato, Armand R. Maggenti, Adnan Hardan
The Effects Of Soil Salinity And Meloidoflyne Javanica On Tomato, Armand R. Maggenti, Adnan Hardan
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
A non-sodic, non-saline sandy loam soil was salinized to anion-cation ratios similar to those naturally occurring in Iraq and California. The interactions of saline soils (conductivities 4, 8, 12 and 16 mmhos/cm) with a moderately salt-tolerant plant (Lycopersicon esculentum 'Marimond') and a plant parasitic nematode (Meloidogyne favanica) were investigated. Plant parasitic nematodes were shown to be an important modifying influence within the plant environment, either accentuating or ameliorating salinity stress effects.
The Other Side Of Biology, John J. Janovy Jr.
The Other Side Of Biology, John J. Janovy Jr.
John Janovy Publications
Discusses biology as increasingly multidisciplinary.
The Effect Of Haloxon And Thiabendazole On The Free-Living Stages Of Haemonchus Contortus, Gary Mccallister
The Effect Of Haloxon And Thiabendazole On The Free-Living Stages Of Haemonchus Contortus, Gary Mccallister
Theses and Dissertations
This study was undertaken to determine the effect of thiabendazole and haloxon on the free-living stages of Haemonchus contortus and to determine the suitability of the free-living stages for their use in primary drug evaluation for chemotherapy or for chemical control of free-living stages. Cleaned unembryonated ova, embryonated ova, first-, second-, third-, and exsheathed third-stage larvae were exposed to suspensions of 5.0%, 1.0%, 0.5%, 0.25%, 0.12%, 0.05%, and water soluble concentrations of each drug for exposure times of 0.25, 0.50, 1.0, 2.0, 4.0, 8.0, and 16.0 hours at pH 7.0 and 25° C. Survival was assessed by observing any subsequent …
Location Of Grapevine Fanleaf And Yellow Mosaic Virus Particles In Xiphinema Index, D. J. Raski, Armand R. Maggenti, N. O. Jones
Location Of Grapevine Fanleaf And Yellow Mosaic Virus Particles In Xiphinema Index, D. J. Raski, Armand R. Maggenti, N. O. Jones
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Particles of fanleaf and yellow mosaic viruses are reported in the lumen of the esophagus of Xiphinerna index. Differences in cuticular morphology suggest differences in charged receptor sites which may offer an explanation for virus location and orderly arrangement.
Cathetocephalus Thatcheri Gen. Et Sp. N. (Tetraphyllidea: Cathetocephalidae) Fam. N. From The Bull Shark, Murray D. Dailey, Robin M. Overstreet
Cathetocephalus Thatcheri Gen. Et Sp. N. (Tetraphyllidea: Cathetocephalidae) Fam. N. From The Bull Shark, Murray D. Dailey, Robin M. Overstreet
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Cathetocephalus thatcheri gen. et sp. n. is described from the spiral valve of the bull shark, Carcharhinus leucas (Valenciennes), taken in the Gulf of Mexico and the Atlantic coast of Florida. A new family is erected for the new genus. The species most closely resembles Pillersium owenium Southwell, 1927, in that both possess a scolex which is perpendicular to the long axis of the strobila. It differs, however, in having a single neck and holdfast organ rather than a bifurcate neck with two bothridia. Also, the surfaces of the scolex differ from those of P. owenium by possessing fleshy papilliform …
Seasonal Carbon Dioxide And Oxygen Concentrations In The Dens Of Hibernating Mammals (Sciuridae), D. D. Williams, Robert L. Rausch
Seasonal Carbon Dioxide And Oxygen Concentrations In The Dens Of Hibernating Mammals (Sciuridae), D. D. Williams, Robert L. Rausch
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
This paper reports seasonal changes in respiratory gases in artificial dens of two species of hibernators indigenous to central and northern Alaska: Citellus parryi ablusus(Osgood) and Marmota broweri Hall and Gilmore (Sciuridae).
Some Species Of Lecithaster Lühe, 1901 (Digenea: Hemiuridae) And Related Genera From Fishes In The Northern Gulf Of Mexico, Robin M. Overstreet
Some Species Of Lecithaster Lühe, 1901 (Digenea: Hemiuridae) And Related Genera From Fishes In The Northern Gulf Of Mexico, Robin M. Overstreet
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Lecithaster helodes n. sp. is described from Mugil curema and M. cephalus. It differs from the closely related L. mugilis Yamaguti, 1970 by having four rather than three ovarian lobes and other minor differences. Discussions and measurements are presented for L. confusus Odhner, 1905, L. leiostomi Overstreet, 1970, Hysterolecitha elongata Manter, 1931, Aponurus pyriformis (Linton, 1910) n. comb., and A. elongatus Siddiqi & Cable, 1960. Branchadena Linton, 1910 is considered a synonym of Aponurus Looss, 1907. New host records are listed for some of the above hemiurid trematodes. Leurodera ocyri Travassos, Frietas & Bihrnheim, 1965 and L. inaequalis Travassos, …
Structure Of The Oocysts And Excystation Processes Of Four Eimeria Spp. (Protozoa: Eimeriidae) From The Colorado Pika, Ochotona Princeps, Donald W. Duszynski, John T. Brunson
Structure Of The Oocysts And Excystation Processes Of Four Eimeria Spp. (Protozoa: Eimeriidae) From The Colorado Pika, Ochotona Princeps, Donald W. Duszynski, John T. Brunson
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Oocysts of Eimeria banffensis Lepp, Todd, and Samuel, 1972, Eimeria cryptobarretti sp. n., Eimeria princepsis sp. n., and Eimeria calentinei sp. n. are described from the Colorado pika, Ochotona princeps, collected from 3 mountain sites in Colorado. Subspherical oocysts of E. banffensis measure 23 to 34 by 18 to 25 μ (mean 27.6 by 23.0 μ) with ovoid sporocysts 10 to 16 by 7 to 10 μ (mean 12.5 by 8.5 μ). A micropyle, oocyst residuum, and polar granule are absent, but a sporocyst residuum, Stieda body, and substiedal body are present. The ellipsoidal oocysts of E. cryptobarretti measure …
A Proposed Mechanism Of Action For In Vitro Excystation Of Two Species Of Coccidia, William Ronald Jolley
A Proposed Mechanism Of Action For In Vitro Excystation Of Two Species Of Coccidia, William Ronald Jolley
Theses and Dissertations
Excystation of coccidian oocysts is accomplished in vitro by altering wall permeability with CO2 and a reducing agent, then activating the enclosed sporozoites with a solution of trypsin and bile. Elucidation of the mechanism of action of the CO2-reducing agent treatment was the basic intent of this study. Oocysts of Eimeria stiedae (rabbit) and E. tenella (chicken) were tested for the presence of an excystation-associated enzyme by incubating sporulated oocysts in fluids extracted from variously treated oocysts, and by carbon-14 labelling; the effect of CO2 -reducing agent treatment on oocyst walls was investigated by titration with acid or base for …
Anthelmintics For Nematode Parasites Of Fish: Ii. Aqueous Anthelmintic Bath Treatments Using Diethyl 2-Chlorovinyl Phosphate And 2,2 Dichlorovinyl Dimethyl Phosphate For Control Of Sterliadochona Pedispicula In Salmo Gairdnerii, A. R. Maggenti
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
The toxicity of diethyl 2-chlorovinyl phosphate (SD1836) and 2,2 dichlorovinyl dimethyl phosphate (DDVP) was tested as an "in-water" treatment of rainbow trout and in vitro against the internal nematode parasite of fish, Sterliadochona peclispicula. As an "in-water" anthelmintic treatment SD1836 was 100% effective at concentrations of 25 fL liters/liter for 24 hr and 5 μ liters/liter for 72 hr; no toxic effects to rainbow trout were noted with these treatments.
Acanthobothrium Urolophi Sp. N., A Tetraphyllidean Cestode (Oncobothriidae) From An Australian Stingaree, Gerald D. Schmidt
Acanthobothrium Urolophi Sp. N., A Tetraphyllidean Cestode (Oncobothriidae) From An Australian Stingaree, Gerald D. Schmidt
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Acanthobothrium urolophi sp. n. is described from a common stingaree, Urolophus testaceus, from South Australia. It differs from all other species in being apolytic and acraspedote, in having hooks 105-115 μ- long, one accessory sucker 80-90 wide on each bothridinm, and 40-72 testes in two longitudinal rows.
Natural Control Of Insect Pests On The Ord?, P J. Michael
Natural Control Of Insect Pests On The Ord?, P J. Michael
Journal of the Department of Agriculture, Western Australia, Series 4
Current trials conducted by the Department of Agriculture at Kununurra are indicating that there may be an important place for biological control of insect pests of the Ord River Irrigation Area.
Morphometric Variation In Aphelenchus Avenae Bastian, 1865 With Varied Nutrition And Time, John P. Kline
Morphometric Variation In Aphelenchus Avenae Bastian, 1865 With Varied Nutrition And Time, John P. Kline
Masters Theses
The effect of varied time, nutritional media, and species of fungus on taxonomic characters (L, a, b1, c, and V) of Aphelenchus avenae was investigated. The effect of these ecological conditions on morphometrics was variable; however, these characters varied significantly with increased time, decreased nutritional media, and species of fungus. The greatest number of morphometric changes occurred with increased time, and the fewest with species of fungus. With changing environmental conditions, “V” values were the most stable character.
Ec73-1907 Internal Parasites Of Cattle, D. L. Ferguson
Ec73-1907 Internal Parasites Of Cattle, D. L. Ferguson
University of Nebraska-Lincoln Extension: Historical Materials
Extension Circular 73-1907 is about internal parasites in cows and how they affect cattle production.
Internal parasites continue to be one of the major problems confronting cattle producers. In 1965, the United States Department of Agriculture estimated that internal parasites in cattle caused an average annual loss of $161,678,000. The internal parasites responsible for the annual loss are listed below.
Anaplasmosis. .$ 36,001,000
Coccidiosis . . . .14,569,000
Worm Parasites .100,046,000
Liver Flukes . . . 3,022,000
Trichomoniasis .. 8,040,000
In cattle the effects of internal parasites will be well camouflaged. However, additional feed will be required to reach market …
Anthelmintics For Nematode Parasites Of Fish: I. Control Of Sterliadochona Pedispicula In Salmo Gairdnerii By Diethyl 2-Chlorovinyl Phosphate And 2,2 Dichlorovinyl Dimethyl Phosphate Pellets, A. R. Maggenti
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Tests indicate that the oral administration of diethyl 2-chlorovinyl phosphate (SD1836) and 2,2 dichlorovinyl dimethyl phosphate (DDVP) plastic-incorporated pellets significantly reduces the intestinal nematode parasite Sterliadochona pedispicula in wild rainbow trout. No evidence of fish toxicity was noted with the treatments and dosages tested.
Parasites Of Some Penaeid Shrimps With Emphasis On Reared Hosts, Robin M. Overstreet
Parasites Of Some Penaeid Shrimps With Emphasis On Reared Hosts, Robin M. Overstreet
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Information is presented about parasites and commensals of penaeid shrimps, allowing those who rear shrimps and those who are interested in associated organisms of shrimp to have a better knowledge of the organisms that are or may be associated with brown, white, and pink shrimps. It covers common and rare organisms and diseases, primarily in the northern Gulf of Mexico, listing several previously unreported species including an undescribed gregarine, a larval nematode (Spirocarnallanus pereirai), a commensal nematode (Leptolaimus sp.), a leech (Myzobdella lugubris), a blue-green alga (Schizothrix calcicola), a hydroid (Obelia bicuspidata …
Plagioporus Hypentelii Sp. N. (Trematoda: Opecoelidae) From The Hogsucker, Hypentelium Nigricans (Lesueur) (Osteichthys: Catostomidae), Sherman S. Hendrix
Plagioporus Hypentelii Sp. N. (Trematoda: Opecoelidae) From The Hogsucker, Hypentelium Nigricans (Lesueur) (Osteichthys: Catostomidae), Sherman S. Hendrix
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Plagioporus hypentelii sp. n. (Trematoda: Opecoelidae) is described from the intestine of the hogsucker, Hypentelium nigricans (LeSueur), in streams of Adams County, Pennsylvania. It most closely resembles P. serotinus Stafford, 1904, but differs from it chiefly in its less elongate shape, smaller size, smaller testes, ovary, and eggs, straight cirrus sac, in hosts and geographic location of the hosts.
Lice Of Public Health Importance And Their Control, Harry D. Pratt, Kent S. Littig
Lice Of Public Health Importance And Their Control, Harry D. Pratt, Kent S. Littig
Harold W. Manter Laboratory: Library Materials
Lice have been intimately associated with man for centuries. Infestations with lice occur today in the United States and many other countries despite great efforts to maintain high standards of public health. Public health agencies are often called upon if infestations include or expose large groups of people, particularly those in public institutions such as schools, jails, hospitals, or homes for the aged.
The three sucking lice that infest humans are: the body louse (Pedlculus humanus humanus), the head louse (Pediculus humanus capitis), and the crab louse (Pthirus pubis). The body louse is the …
Gastro-Intestinal And Abdominal Helminths Of White-Tailed Deer (Odocoileus Virginianus) From Carroll And Jo Daviess Counties In Northern Illinois, Jeffrey Joseph Hodge
Gastro-Intestinal And Abdominal Helminths Of White-Tailed Deer (Odocoileus Virginianus) From Carroll And Jo Daviess Counties In Northern Illinois, Jeffrey Joseph Hodge
Masters Theses
Forty-four white-tailed deer shot by hunters in November and December, 1971, in Carroll and Jo Daviess counties in northwestern Illinois were necropsied for gastro-intestinal and abdominal helminths. Five species of gastro-intestinal nematodes were found: Gongylonema pulchrum, Ostertagia odocoilei, Haemonchus contortus, Trichuris ovis and Nematodirus sp. Setaria yehi, a filiariad nematode, was found in the abdominal cavity. Moniezia benedeni was the only cestode found. No trematodes were recovered. Differences in numbers and kinds of parasites found in northern Illinois and southern Illinois are discussed. Prevalence increased with host age for certain species of parasites and decreased or …
A Survey Of Ectoparasites From Microtus Ochrogaster Ochrogaster (Wagner), Peromyscus Leucopus Noveboracensis (Fisher), And Cryptotis Parva Harlani (Say), Fred Basolo Jr.
A Survey Of Ectoparasites From Microtus Ochrogaster Ochrogaster (Wagner), Peromyscus Leucopus Noveboracensis (Fisher), And Cryptotis Parva Harlani (Say), Fred Basolo Jr.
Masters Theses
Ectoparasites were taken from 50 white footed deer mice, Peromyscus leucopus noveboracensis (Fisher), 50 prairie voles, Microtus ochrogaster ochrogaster (Wagner), and 11 least shrews, Cryptotis parva harlani (Say), within a five mile radius of Charleston, Illinois from 23 January 1973 through 25 June 1973. A total number of 4,242 ectoparasites were recovered; 2,395 from Microtus ochrogaster, 542 from Peromyscus leucopus, and 1,305 from Cryptotis parva. The major groups of ectoparasites and their percent recovery were: Acari (excl. of Metastigmata) 81.50%, Metastigmata 2.95%, Anoplura 15.50% and Siphonaptera 0.50%. A study of the ectoparasites recovered revealed representatives of 18 …
Parasites From Gizzard Shad, Dorosoma Cepedianum, In Lake Charleston, Illinois, Francis M. Yabai Kaikumba
Parasites From Gizzard Shad, Dorosoma Cepedianum, In Lake Charleston, Illinois, Francis M. Yabai Kaikumba
Masters Theses
Eighty gizzard shad (Dorosoma cepedianum) from Lake Charleston, Charleston, Illinois were examined for parasites. Eight fish were parasitized. Three fish contained the acanthocephalan Tanaorhamphus longirostris, three fish harbored cestodes of the genus Glaridacris and two fish had the nematode Camallanus oxycephalus. The latter is here reported for the first time from gizzard shad. Twenty fish were infected with the fungus Saprolegnia sp. The numbers of helminth parasites harbored by shad are less than reported for other forage fish. However, the incident of parasitism reported in this study is greater than that reported by previous workers.