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Articles 9781 - 9810 of 10517
Full-Text Articles in Zoology
Discovery Of The Northern Hog Sucker In The Ottertail River, Mark A. Otnes
Discovery Of The Northern Hog Sucker In The Ottertail River, Mark A. Otnes
Journal of the Minnesota Academy of Science
On June 3, 1973 several specimens of the Northern Hog Sucker (Hypentelium nigricans), were collected from a six-mile stretch of the Ottertail River, Aurdal Township, Ottertail County in Minnesota. Previous to this the Northern Hog Sucker has never been collected or reported from the Red River drainage, of which the Ottertail River is a part, nor from Upper Mississippi River Basin adjacent to the Red River drainage. As far back as 1907 researchers erroneously reported the Northern Hog Sucker from the Upper Mississippi River Basin.
Distribution Of The Blue-Spotted Salamander Ambystoma Laterale Hallowell In Minnesota, David C. Kramer
Distribution Of The Blue-Spotted Salamander Ambystoma Laterale Hallowell In Minnesota, David C. Kramer
Journal of the Minnesota Academy of Science
This paper brings together the known locality records of Ambystoma laterale in Minnesota. Recent nomenclature changes involving this salamander, its favored habitat and possible range extensions also are included .
Taxonomic Relationship Of Hybrid Peafowl-Guineafowl: Preliminary Study Of Serum Proteins, Earl L. Hanebrink, Charles Gruver, Richard Van Grouw
Taxonomic Relationship Of Hybrid Peafowl-Guineafowl: Preliminary Study Of Serum Proteins, Earl L. Hanebrink, Charles Gruver, Richard Van Grouw
Journal of the Arkansas Academy of Science
Disc electrophoresis of serum proteins was conducted for the peafowl, guineafowl, peafowl-guineafowl hybrid, and domesticated chicken. The four birds analyzed are of the same order but family status has been questioned. Serum protein patterns for all birds were similar in the anodic regions but different in the cathodic regions. The peafowl-guineafowl hybrid showed a pattern more similar to that of the peafowl than to that of the guineafowl. In morphologic characters the hybrid also was more similar to the peahen than to the guineafowl. In the cathodic region the serum protein pattern of the guineafowl was more unlike the patterns …
The Eriophyoidea Of South Dakota, Magdalena Lopez Briones
The Eriophyoidea Of South Dakota, Magdalena Lopez Briones
Electronic Theses and Dissertations
This paper presents the results of the taxonomic investigation of the Eriophyoidea in South Dakota. Information is given on the morphology, discussion of variation within a population, distribution, damage in host plants, economic importance and techniques of collecting and preparing specimens. There are 42 previously described species included in this study. Of the 48 species studied, six are new. Species described are: Aculops maximilianae, Diptacus pengsonae, Eriophyes arceosae, Eriophyes taylori, Tegonotus lindenus, and Tetra mcdanieli.
The Effects Of Crowding On The Diurnal Ascorbic Acid Levels Of Albino Rats, Mary Jo Barr
The Effects Of Crowding On The Diurnal Ascorbic Acid Levels Of Albino Rats, Mary Jo Barr
Masters Theses
The adrenal physiology of the albino rat was studied through the measurement of adrenal ascorbic acid levels. A cyclic phenomenon was observed which follows the diel periodicity of the animal. Ascorbic acid values were found to be characteristically higher in males than in females. A similar difference was also seen in populations divided into young animals (body weight less than 175 grams) and old animals (body weight greater than 175 grams). Crowding, induced by manipulating the area of cage space per gram of body weight, was observed to be a definite stressor and caused the adrenal ascorbic acid levels to …
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 …
The Effects Of Acute Stress On Adrenal Ascorbic Acid Levels, Robert Joseph Collier
The Effects Of Acute Stress On Adrenal Ascorbic Acid Levels, Robert Joseph Collier
Masters Theses
The diurnal rhythm of adrenal ascorbic acid (DAR) displays an inverse relationship to the diurnal rhythm of circulating levels of plasma corticosteroids. Alloxan monohydrate, 175 mg/kg body weight was given subcutaneously to albino rats to determine the effect of the diabetic state on the DAR. A total of 200 female albino rats were divided into two study groups. Study Group I was composed of 150 animals divided into populations of 15, each including 3 controls. Study Group II was composed of populations of 5, each group containing all controls or all alloxinated rats. The populations of 15 were sacrificed at …
Critical Flicker Frequency In A Harp Seal, Pagophilus Groenlandicus (Erxleben, 1777), Charles D. Bernholz
Critical Flicker Frequency In A Harp Seal, Pagophilus Groenlandicus (Erxleben, 1777), Charles D. Bernholz
University of Nebraska-Lincoln Libraries: Faculty Publications
Critical flicker frequency (CFF) in a free-swimming harp seal (Pagophilus groenlandicus) was investigated using behavioral techniques. The resulting CFF versus intensity contour indicates a definite rod-cone break, confirming a duplex photoreceptor population whose presence had not been observed in previous morphological reports.
Status Of The Mountain Lion In Arkansas, John A. Sealander, Philip S. Gipson
Status Of The Mountain Lion In Arkansas, John A. Sealander, Philip S. Gipson
Journal of the Arkansas Academy of Science
Two authenticated kill records of the mountain lion, Felis concolor, in Arkansas are reported as well as numerous reliable sight records spanning an approximately 30-year period. Distribution of sightings in the state is discussed in relation to an expanding deer population. The cougar probably never was exterminated in Arkansas but it still may be considered endangered.
Lo Que Todos Debemos Saber: Las Reglas De La Nomenclatura Zoológica, Aldemaro Romero Jr.
Lo Que Todos Debemos Saber: Las Reglas De La Nomenclatura Zoológica, Aldemaro Romero Jr.
Publications and Research
No abstract provided.
Two Species Of Bats New To The Fauna Of Trinidad, Hugh H. Genoways, Robert J. Baker, R. S. Loregnard
Two Species Of Bats New To The Fauna Of Trinidad, Hugh H. Genoways, Robert J. Baker, R. S. Loregnard
University of Nebraska State Museum: Mammalogy Papers
Goodwin and Greenhall (1961) in their monograph of the bats of Trinidad and Tobago recorded 58 species of chiropterans from the island of Trinidad. In two subsequent publications (Goodwin and Greenhall, 1962, 1964) these authors recorded Mesophylla macconnelli, Prornops nasutus, and Phylloderma stenops from Trinidad bringing the number of species known from the island to 61. In August 1967, one of us (R. J. Baker) and Larry Deaven netted bats on Trinidad in connection with ongoing studies of chiropteran karyology, and obtained two species not previously recorded.
Seasonal Variation In The Tubular And Interstitial Areas Of The Testes In Sternotherus Odoratus L., Robert Hans Spaet
Seasonal Variation In The Tubular And Interstitial Areas Of The Testes In Sternotherus Odoratus L., Robert Hans Spaet
Masters Theses
Seasonal changes within the tubular and interstitial areas of the testes in Sternotherus odoratus are investigated, histologically and histochemically. Forty specimens were collected in Illinois, Tennessee and Louisiana between May, 1969 and August, 1972.
Many of the histological and macroscopic observations made by Risley (1938) on the spermatogenic cycle of S. odoratus in Michigan are confirmed. Contrary to his findings, fluctuations in interstitial cell nuclear diameters are observed during spermatogenesis. Greatest diameters coincide with what Risley has considered " . . . period of most active breeding." Sertoli cell nuclear diameters undergo similar fluctuations being greatest during spring breeding and …
Whole Issue Nebraska Bird Review (December 1972) 40(4)
Whole Issue Nebraska Bird Review (December 1972) 40(4)
Nebraska Bird Review
TABLE OF CONTENTS
Notes on the Distribution of Some Summer Birds in Nebraska ...................70
1972 (Forty-seventh) Spring Migration and Occurrence Report ...................72
Perkins County 1971 Fall Occurrence Report ...................87
Book Reviews ...................87
1972 Fall Field Day ...................88
Notes ...................89
Index of Volume XXXX ...................90
Bats Of Jalisco, México, Larry C. Watkins, J. Knox Jones Jr., Hugh H. Genoways
Bats Of Jalisco, México, Larry C. Watkins, J. Knox Jones Jr., Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
The fauna and flora of the Mexican state of Jalisco have received the much deserved attention of a number of biologists in recent years. Nevertheless, few comprehensive accounts of the biota of this interesting and physiographically diverse area have been published. In the period from 1949 to 1969, field representatives of the Museum of Natural History at the University of Kansas collected vertebrates in Jalisco. Among the specimens obtained from the state, the mammalian fauna of which never has been treated as a unit previously, were approximately 3000 bats, which form the primary basis for this report. In addition to …
Stenoderma Rufum, Hugh H. Genoways, Robert J. Baker
Stenoderma Rufum, Hugh H. Genoways, Robert J. Baker
University of Nebraska State Museum: Mammalogy Papers
Order Chiroptera, Family Phyllostomatidae, Subfamily Stenoderminae. The genus Stenoderma contains a single species, Stenoderma rufum, as treated below.
Mammals From Southwestern North Dakota, Hugh H. Genoways, J. Knox Jones Jr.
Mammals From Southwestern North Dakota, Hugh H. Genoways, J. Knox Jones Jr.
University of Nebraska State Museum: Mammalogy Papers
The distribution of the mammals in the southwestern part of North Dakota and their ecological and taxonomic relationships have not been well documented. In addition to Vernon Bailey's (1927) survey of mammals of the state, based primarily upon field work conducted between 1912 and 1916, the only other principal studies dealing with the mammalian fauna of southwestern North Dakota were a preliminary report of the mammals of the state by Bailey et al. (1914) and the publication by J.A. Allen (1875) on mammals taken by the expedition that surveyed a route for the North Pacific Railway. Our studies, which were …
Front Matter, Vol. 17 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Fleas Of Venezuela, Vernon J. Tipton, Carlos E. Machado-Allison
Fleas Of Venezuela, Vernon J. Tipton, Carlos E. Machado-Allison
Brigham Young University Science Bulletin, Biological Series
Forty-three species of fleas were collected in Venezuela by personnel of the Smithsonian Venezuelan Project. Currently there are fifty-two species of fleas known from Venezuela. Four new taxa are described: Hormopsylla cryptica, Ctenidiosomus perplexus, Adoratopsylla antiquorum rara and Adoratopsylla antiquorum recta. The females of Adoratopsylla antiquorum discreta Jordan and Rothschildopsylla noctilionis (Costa Lima) are described. The families Stephanocircidae (Cleopsylla, Craneopsylla, Plocopsylla, Sphinctopsylla) and Pygiopsyllidae (Ctenidiosomus) are reported from Venezuela for the first time. Two male specimens of the genus Orchopeas constitute the first record of this genus in South America and records of species of the …
End Matter, Vol. 17 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Labidocarpid Bat-Mites Of Venezuela (Listrophoroidea: Labidocarpidae), Burruss Mcdaniel
Labidocarpid Bat-Mites Of Venezuela (Listrophoroidea: Labidocarpidae), Burruss Mcdaniel
Brigham Young University Science Bulletin, Biological Series
Nine species of bat-mites representing six genera of the family Labidocarpidae are recorded from Venezuela. The genus Pseudoalabidocarpus is described as new and contains a single species, P. secus, new species, collected from Phyllostomus elongatus and P. discolor. Two other new species are described: Lawrenceocarpus phyllostomus, new species, collected from Phyllostomus elongatus and Micronycteris hirsuta; and Labidocarpus dossuarius, new species, collected from Molossus major. New distribution and host records from Venezuela include: Alabidocarpus furmani on Glossophaga longirostris, Carollia perspicillata, C. brevicauda, Vampyrops helleri, Anoura caudifera and Pteronotus parnellii; A. nicaraguae on Uroderma magnirostrum; A. jonesi on Vampyrops helleri; Parakosa tadarida …
Venezuelan Amblyopinini (Insecta: Coleoptera; Staphylinidae), C. E. Machado-Allison, Alfredo Barrera
Venezuelan Amblyopinini (Insecta: Coleoptera; Staphylinidae), C. E. Machado-Allison, Alfredo Barrera
Brigham Young University Science Bulletin, Biological Series
Eight species of the tribe Amblyopinini are known from Venezuela. The descriptions of five species (Amblyopinus proximus, A. intermedius and A. metasternalis plus Amblyopinodes major and A. venezolanus) are given in this paper. Megamblyopinus seeversi Machado-Allison and Barrera is placed in the genus Amblyopinus and A. bolivari Barrera, Machado-Allison and Muñiz is reduced to a subspecies of A. schmidti Seevers. Data on hosts and distribution are given for the new species as well as A. emarginatus Seevers and A. waterhousei Fauvel.
Contributions To The Study Of The Genus Eriastrum: Ii. Notes Concerning The Type Specimens And Descriptions Of The Species, H. Keith Harrison
Contributions To The Study Of The Genus Eriastrum: Ii. Notes Concerning The Type Specimens And Descriptions Of The Species, H. Keith Harrison
Brigham Young University Science Bulletin, Biological Series
The species of the genus Eriastrum are described. Keys to the species and subspecies and the geographic ranges are provided. Discussions with regard to the type specimens or lectotypes and interspecific relationships are presented.
End Matter, Vol. 17 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 17 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Sucking Lice Of Venezuelan Rodents With Remarks On Related Species (Anoplura), Phyllis T. Johnson
Sucking Lice Of Venezuelan Rodents With Remarks On Related Species (Anoplura), Phyllis T. Johnson
Brigham Young University Science Bulletin, Biological Series
The paper includes discussions and descriptions of species of Anoplura known to occur on Venezuelan rodents, and of certain other taxa related to Venezuelan forms. Five genera are represented: Enderleinellus Fahrenholz—2 species: insularis Werneck and venezuelae Ferris; Hoplopleura Enderlein—19 species, 11 of them new: sciuricola Ferris; arizonensis Stojanovich and Pratt; aitkeni, new species; travassosi Werneck; abeli, new species; rimae, new species; angulata Ferris; indiscreta, new species; tiptoni, new species; handleyi, new species; eximia, new species; quadridentata (Neumann); contigua, new species; nesoryzomydis Ferris; oryzomydis Pratt and Lane; multilobata Werneck; splendida, new species; inusitata, new species; and orinocoi …
Mites Of The Family Laelapidae In Venezuela (Acarina: Laelapidae), Deane P. Furman
Mites Of The Family Laelapidae In Venezuela (Acarina: Laelapidae), Deane P. Furman
Brigham Young University Science Bulletin, Biological Series
This publication presents the results of an extensive survey of symbiotic laelapid mites of vertebrates from Venezuela. Over 40,000 vertebrates were examined from a wide variety of life zones and localities. The laelapid fauna represented includes 1 new genus, Hymenolaelpas, and 7 genera previously described: Laelaps, Mysolaelaps, Tur, Steptolaelaps, Neoparalaelaps, Gigantolaelaps, and Androlaelaps. The genera are represented by 51 species and subspecies, of which 8 are described as new. Previously unknown males and immatures of several species are described. Gigantolaelaps versteegi ( Oudemans ) is redescribed from type material; G. wolffsohni (Oudemans) is redescribed from Oudemans’ original material; G. peruviana …
Front Matter, Vol. 17 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 17 No. 4
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 17 No. 6
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 17 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.