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Articles 1 - 16 of 16
Full-Text Articles in Life Sciences
Effects Of A Nuclear Detonation On Arthropods At The Nevada Test Site, Dorald M. Allred
Effects Of A Nuclear Detonation On Arthropods At The Nevada Test Site, Dorald M. Allred
Brigham Young University Science Bulletin, Biological Series
Fifty-three arthropod species were studied in an area affected by an underground nuclear detonation. These were represented by 10 species of ants, 17 beetles, 5 orthopterans, 4 scorpions, 6 solpugids, and 11 spiders (Table 16). Relative populations were determined prior to the detonation and at three periods after the detonation–(1) one and two months after (August and September 1962), (2) 11 months after (June 1963), and (3) 13 months after (August 1963). One and two months after the detonation, the number of species was reduced from the expected by 48 percent, by 52 percent after 11 months, and by 66 …
Front Matter, Vol. 18 No. 4
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 18 No. 4
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
An Ecological Survey Of The Algae Of Huntington Canyon, Utah, Lorin E. Squires, Samuel R. Rushforth, Carol J. Endsley
An Ecological Survey Of The Algae Of Huntington Canyon, Utah, Lorin E. Squires, Samuel R. Rushforth, Carol J. Endsley
Brigham Young University Science Bulletin, Biological Series
A quantitative and ecological study of the algae of Huntington Canyon, Emery County, Utah, was conducted from March 1971 to April 1972. Net plankton, nannoplankton, periphyton, and visible attached algae were studied. Certain physical and chemical parameters in the waters of Huntington Creek and a small pond along its course were also measured.
Huntington Creek contains a wide diversity of genera and species of algae. Diatoms are the main constituent of the flora of this stream throughout the year. Hydrurus foetidus is prevalent in Huntington Creek from late winter to early summer, and filamentous blue green algae abound in the …
Breeding Ecology Of Raptors In The Eastern Great Basin Of Utah, Dwight G. Smith, Joseph R. Murphy
Breeding Ecology Of Raptors In The Eastern Great Basin Of Utah, Dwight G. Smith, Joseph R. Murphy
Brigham Young University Science Bulletin, Biological Series
A comparative study of the breeding ecology of 12 raptor species was conducted in the eastern Great Basin from 1967-1970. The project was designed to determine the composition and densities, habitat selection, territoriality and predatory habits of raptorial birds in a semiarid environment. All topics were analyzed comparatively, relating the requirements and activities of the 12 raptor species.
Average yearly population densities of all species approximated 0.5 pairs per square mile, but much of the available habitat was not utilized. Predominant raptors were the Ferruginous Hawk and Great Horned Owl. Other important raptors included the Golden Eagle, Red-tailed Hawk and …
The Peregrine Falcon In Utah, Emphasizing Ecology And Competition With The Prairie Falcon, Richard D. Porter, Clayton M. White
The Peregrine Falcon In Utah, Emphasizing Ecology And Competition With The Prairie Falcon, Richard D. Porter, Clayton M. White
Brigham Young University Science Bulletin, Biological Series
This study was undertaken to record the known history of the Peregrine Falcon (Falco peregrinus) in Utah as we have been able to construct it from both the literature and from our original research that extends over about a 30-year period in the state. The present total population of the peregrine in Utah is possibly only 10 percent of what it has been in historic times. In an effort to find explanations for the decline, we have explored hypotheses of climatic changes, impact of pesticides, disease, and human disturbances. We conclude that pesticide contamination and climatic changes may …
Front Matter, Vol. 18 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 18 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 18 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 18 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 18 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 18 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
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 …
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.