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Articles 1 - 30 of 49
Full-Text Articles in Medicine and Health Sciences
New Records And Species Of Neotropical Bark Beetles (Scolytidae: Coleoptera) Part V, Stephen L. Wood
New Records And Species Of Neotropical Bark Beetles (Scolytidae: Coleoptera) Part V, Stephen L. Wood
Brigham Young University Science Bulletin, Biological Series
The tribe Carphodicticini, the genera Carphodicticus, Periocryphalus, and Phelloterus, and 101 species are described as new to science. Notes on the habits of Cladoctonus boliviae (Wood), Mimips mimicus Schedl, and Styphlosoma granulatum Blandford are included; and the female of Styphlosoma granulatum Blandford is described. The species new to science include the following: Phrixosoma crebrum, P. frustratum (Colombia), P. viriosum, Chramesus macrocornis, C. orinocensis, C. strigilis, C. imporcatus, C. impolitus, C. parcus, C. denticulatus, C. priscus, C. vinealis, C. solicitatus, C. peniculus, ChaetophJoeus andinus, Liparthrum carapae, L. meridensis (Venezuela), Pycnarthrum inornatum, Pyc. funerium, Pyc. perditum (Honduras), Pyc. fici (Honduras, Venezuela), Pyc. …
Front Matter, Vol. 15 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 15 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Botanical And Physiographic Reconnaissance Of Northern British Columbia, Stanley L. Welsh, J. Keith Rigby
Botanical And Physiographic Reconnaissance Of Northern British Columbia, Stanley L. Welsh, J. Keith Rigby
Brigham Young University Science Bulletin, Biological Series
The area of study is located in northern central British Columbia and includes the Sustut Basin and surrounding mountains. The physiography and geology of the region is described and the plant communities are enumerated. An annotated list of 205 species, 11 subspecies, and 35 varieties collected during the summer of 1969 is included.
A Flora From The Dakota Sandstone Formation (Cenomanian) Near Westwater, Grand County, Utah, Samuel R. Rushforth
A Flora From The Dakota Sandstone Formation (Cenomanian) Near Westwater, Grand County, Utah, Samuel R. Rushforth
Brigham Young University Science Bulletin, Biological Series
A Cretaceous (Cenomanian) flora from the Dakota Sandstone Formation near Westwater, Grand County, Utah contains an admixture of ferns and angiosperms. The ferns of this flora are representative of an older Jurassic-Wealden vegetational type, whereas the angiosperms are typical of the modern vegetational type. Species of Gleichenia and Matonidium and Astralopteris coloradica represent the dominant forms in this flora.
The Westwater flora contains fourteen genera including nineteen species and one variety. New species described from this flora include Asplenium dakotensis, Coniopteris westwaterensis and Ilex serrata.
Front Matter, Vol. 14 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 14 No. 4
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 14 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 14 No. 4
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
A List Of Arthropods Of Medical Importance Which Occur In Utah With A Review Of Arthropod-Borne Diseases Endemic In The State, Vernon J. Tipton, Robert C. Saunders
A List Of Arthropods Of Medical Importance Which Occur In Utah With A Review Of Arthropod-Borne Diseases Endemic In The State, Vernon J. Tipton, Robert C. Saunders
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Ticks Of Japan, Korea, And The Ryukyu Islands, Noboru Yamaguti, Vernon J. Tipton, Hugh L. Keegan, Seiichi Toshioka
Ticks Of Japan, Korea, And The Ryukyu Islands, Noboru Yamaguti, Vernon J. Tipton, Hugh L. Keegan, Seiichi Toshioka
Brigham Young University Science Bulletin, Biological Series
This publication is a revision of Ixodid Ticks of Japan, Korea, and the Ryukyu Islands by Keegan and Toshioka (1957). The tick fauna of these areas is represented by 36 species in the genera Argas, Ornithodoros, Amblyomma, Boophilus, Dermacentor, Haemaphysalis, Ixodes, and Rhipicephalus. Three species of the family Argasidae and 10 species of Ixodidae were not treated in the original edition. The additional information contained in this revision was derived from field collections and a thorough review of the literature. Keys are provided for the identification of genera and species. For each species we have given synonymy, a brief diagnosis, …
Front Matter, Vol. 15 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 15 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 15 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 15 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Botanical And Physiographic Reconnaissance Of Northern Yukon, Stanley L. Welsh, J. Keith Rigby
Botanical And Physiographic Reconnaissance Of Northern Yukon, Stanley L. Welsh, J. Keith Rigby
Brigham Young University Science Bulletin, Biological Series
The area of study is located in the northern panhandle of the Yukon Territory, and includes the British and Barn Mountains, Old Crow Flats, and the coastal plain of the north slope. The physiography and geology of the region is described and the plant communities are enumerated. An annotated list of 279 species, 15 subspecies, 63 varieties, and 1 form of vascular plants collected during the summer of 1970 is included.
Front Matter, Vol. 14 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 14 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
The Myology Of Sceloporus C. Clarki Baird And Girard (Reptilia: Iguanidae), Diane Marie Secoy
The Myology Of Sceloporus C. Clarki Baird And Girard (Reptilia: Iguanidae), Diane Marie Secoy
Brigham Young University Science Bulletin, Biological Series
Examination of the complete musculature of Sceloporus clarki clarki Baird and Girard and seven other species of Sceloporus revealed variation among species of Sceloporus and between Sceloporus and other iguanid lizards. The muscles in which the greatest variation was found were the intermandibularis group, the constrictor colli, the episterno-cleido-mastoideus, the episternohyoideus, the coracoid head of the triceps, the costocoracoid and the flexor tibialis externus. This study indicates: (1) Sceloporus is more closely allied to Crotaphytus than to the ground-dwelling iguanines; (2) the possibility of the basal stock of Sceloporus being arboreal, and (3) Sceloporus is a genus in the process …
Front Matter, Vol. 14 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 14 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Notes On Eriogonum - Vi : A Revision Of The Eriogonum Microthecum Complex (Polygonaceae), James L. Reveal
Notes On Eriogonum - Vi : A Revision Of The Eriogonum Microthecum Complex (Polygonaceae), James L. Reveal
Brigham Young University Science Bulletin, Biological Series
This revision discusses seven closely related species of Eriogonum (Polygonaceae) found in the western United States of North America. One of the two major species, E. microthecum, is composed of nine varieties which range over a wide area of the Far West. The other major species, E. effusum, is found over a more restrictive geographical range mainly east of the Continental Divide. The remaining five species are primarily restricted to the Colorado-Green river drainage basin of Utah, Colorado, New Mexico, and northern Arizona. Together these entities form the core of a group of plants known as Section Corymbosa. …
A Taxonomic Study Of Crotaphytus Collaris Between The Rio Grande And Colorado Rivers, William Ingram Iii, Wilmer W. Tanner
A Taxonomic Study Of Crotaphytus Collaris Between The Rio Grande And Colorado Rivers, William Ingram Iii, Wilmer W. Tanner
Brigham Young University Science Bulletin, Biological Series
Little work has been done previously on the taxonomy of Crotaphytus collaris baileyi. This and the demonstration by Fitch and Tanner that C. c. baileyi is a heterogeneous grouping prompted the present study. Only the populations of the type material, the Upper Colorado River Basin, and the Chihuahuan Desert were studied. Multivariate, variance, canonical and discriminant analyses of external characters were performed, and pattern-coloration characters were examined on living specimens.
The results of the analyses show significance between all three populations. The discriminant functions distinguished between the populations with 80% reliability and patternal characters were discriminatory with near 100% reliability. …
A Taxonomic Revision Of The Weevil Genus Tychius Germar In America North Of Mexico (Coleoptera: Curculionidae), Wayne E. Clark
A Taxonomic Revision Of The Weevil Genus Tychius Germar In America North Of Mexico (Coleoptera: Curculionidae), Wayne E. Clark
Brigham Young University Science Bulletin, Biological Series
A study of morphological characters of 4,000 adult weevils used in preparing a key and descriptions indicates there are fifteen North American species in the genus Tychius Germar. Adults occur on plants in the genera Astragalus, Baptisia, Hedysarum, Lotus, Lupinus, and Oxytropis.
The genus is divided into two species groups. The T. sordidus group appears to have representatives in the Old World fauna, but the T. semisquamosus group is probably native to North America. New names, Tychius caesius, and T. hirsutus are proposed for T. armatus Green, 1920 (not Tournier, 1873), and T. hirtellus LeConte, 1876 (not Tournier, 1873) respectively. …
Front Matter, Vol. 13 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 13 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 13 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 13 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 13 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 13 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.