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Full-Text Articles in Life Sciences
Age And Huddling As Determinants Of Metabolic Rate In Grasshopper Mice (Onychomys Leucogaster), Meredith Bailey, Dennis A. Baeyens, Lana Mann
Age And Huddling As Determinants Of Metabolic Rate In Grasshopper Mice (Onychomys Leucogaster), Meredith Bailey, Dennis A. Baeyens, Lana Mann
Journal of the Arkansas Academy of Science
The metabolic rates of grasshopper mice (Onychomys leucogaster) were determined every third day from birth to adulthood. Metabolic rates were quantitated by measuring oxygen consumption in an open circuit system. There was a rapid fall in oxygen consumption from the third day after birth until the ninth day. Mice which were housed separately assumed a constant metabolic rate at an earlier age than mice which were kept with litter-mates. The greatest increases in metabolism occurred when immature mice were separated from litter-mates for oxygen consumption determinations. It is concluded that huddling plays an important role in reducing the metabolic rate …
Maturation And Fecundity Of Redear Sunfish, James C. Adams, Raj V. Kilambi
Maturation And Fecundity Of Redear Sunfish, James C. Adams, Raj V. Kilambi
Journal of the Arkansas Academy of Science
Based on gonosomatic indices and ovum diameter frequency distributions, the redear sunfish spawns from May through July. Fast growing 2-year-old (above 150 mm) and older fish attain sexual maturity. Mature ovum diameter ranged from 0.60 to 1.30 mm. Fecundity • total length, • total weight, and • age relationships were: 1nF = 5.95242 + 0.01967L (r²= 0.90), LnF = 8.80328 + 0.00594W (r²= 0.92), and 1nF = 8.19332 + 0.50231 A (r² =0.83), respectively.
Comparison Of The Lens Protein Profiles Of Three Species Of Ozark Salamanders, James M. Britton
Comparison Of The Lens Protein Profiles Of Three Species Of Ozark Salamanders, James M. Britton
Journal of the Arkansas Academy of Science
The vertebrate lens has a high protein content (35%), 80-90% of which is composed of the soluble, lens-specific structural proteins, the crystallins. The lens protein profiles of urodelan species have been found to be qualitatively distinct. On this basis the lens proteins have been proposed as a measure of true speciation in urodelans. This paper is the result of our effort to derive a technique for comparison of lens protein profiles on a purely qualitative basis without utilizing the complex methodology employed by previous workers. With this object in mind, the lens protein profiles of Plethodon glutinosus, Ambystoma annulatum, and …
Electrophoretic Analysis Of Blood Serum Proteins In Three Species Of Water Snakes (Genus Nerodia), Phyllis J. Garnett
Electrophoretic Analysis Of Blood Serum Proteins In Three Species Of Water Snakes (Genus Nerodia), Phyllis J. Garnett
Journal of the Arkansas Academy of Science
Serum from three species of water snakes (Nerodia rhombifera, N. erythrogaster and N. fasciata) from one geographic region was analyzed electrophoretically on cellulose acetate, and anodic mobility and relative concentration of the fractions were determined by a recording densitometer with an automatic integrator. Classification of fractions was based on mobility (Rf, values), and for identification purposes, bands were labeled in order of decreasing mobility (albumin and alpha₁, alpha₂, alpha₃, beta₁, beta₂, gamma₁, and gamma₂ globulins). Seven fractions were identified in each species with alpha₃ being absent from N. rhombifera and N. erythrogaster, and only one gamma fraction was observed in …
Genic Variation In White-Tailed Deer From Arkansas, Phyllis K. Price, Michael E. Cartwright, Mitchell J. Rogers
Genic Variation In White-Tailed Deer From Arkansas, Phyllis K. Price, Michael E. Cartwright, Mitchell J. Rogers
Journal of the Arkansas Academy of Science
Liver and kidney samples of 33 white-tailed deer (Odocoileus virginianus) representing three populations in Arkansas were examined with horizontal starch gel electrophoresis. Of 17 loci examined, only PGM-1 and ES-2 exhibited polymorphism. Average individual heterozygosity, ranging from 2.3% to 4.7% with a mean of 3.1 %, was much lower than that reported for white-tailed deer in other parts of its range. The three populations examined in this study were highly similar based on Rogers' genetic similarity coefficient.
Occurrence Of The Plains Harvest Mouse, Reithrondontomys Montanus (Baird) In Arkansas, Douglas A. James, John A. Sealander, Jeffrey R. Short
Occurrence Of The Plains Harvest Mouse, Reithrondontomys Montanus (Baird) In Arkansas, Douglas A. James, John A. Sealander, Jeffrey R. Short
Journal of the Arkansas Academy of Science
No abstract provided.
Three Species Of Trypethelium New To Arkansas, George T. Johnson
Three Species Of Trypethelium New To Arkansas, George T. Johnson
Journal of the Arkansas Academy of Science
No abstract provided.
Effect Of Turf Fungicides On Earthworms, J. H. Roark, J. L. Dale
Effect Of Turf Fungicides On Earthworms, J. H. Roark, J. L. Dale
Journal of the Arkansas Academy of Science
Numerous turf fungicides were tested under various conditions for possible deleterious effects upon the earthworm Eisenla foetida. Earthworms treated by immersion for one minute in 0.1% solutions of 10 different fungicides died insignificant numbers after benomyl and thiophanate methyl treatments. After 1% fungicide treatments, there was significant mortality from benomyl, ethazole, Kromad, and thiophanate methyl fungicides. With 2% fungicide solutions, significant numbers died after benomyl, cadmium succinate, ethazole, thiophanate methyl, and thiram treatments. Earthworms fed bermudagrass clippings treated with 10 different fungicides showed a significant decrease in longevity from clippings treated with benomyl, dinocap, ethazole, and thiophanate methyl. Earthworms reared …
Unusual Results From Pellet Analysis Of The American Barn Owl, Tyto Alba Pratincola (Bonaparte), Kenneth N. Paige, Chris T. Mcallister, C. Renn Tumlison
Unusual Results From Pellet Analysis Of The American Barn Owl, Tyto Alba Pratincola (Bonaparte), Kenneth N. Paige, Chris T. Mcallister, C. Renn Tumlison
Journal of the Arkansas Academy of Science
No abstract provided.
Status Of The Endangered Bats, Myotis Sodalis, M. Grisescens, And Plecotus Townsendii Ingens, In Arkansas, Michael J. Harvey, John J. Cassidy, Gary G. O'Hagan
Status Of The Endangered Bats, Myotis Sodalis, M. Grisescens, And Plecotus Townsendii Ingens, In Arkansas, Michael J. Harvey, John J. Cassidy, Gary G. O'Hagan
Journal of the Arkansas Academy of Science
No abstract provided.