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Full-Text Articles in Animal Sciences
Mandibular Dentition In Six Species Of Salamanders, Genus Plethodon (Caudata: Plethontidae), From Arkansas Using Scanning Electron Microscopy, Richard A. Atwill, Stanley E. Trauth
Mandibular Dentition In Six Species Of Salamanders, Genus Plethodon (Caudata: Plethontidae), From Arkansas Using Scanning Electron Microscopy, Richard A. Atwill, Stanley E. Trauth
Journal of the Arkansas Academy of Science
The mandibular (dentary) dentition of six species of Plethodon (P. caddoensis, P. dorsalis, P. fourchensis, P. glutinosus, P. ouachitae, and P. serratus) from Arkansas was studied using scanning electron microscopy. In all species, the mandibular teeth were bicuspid, and each tooth possessed a prominent labial cusp and a well-developed, inward-curving lingual cusp. All species showed similar tooth crown features, except P. caddoensis which exhibited a reduced tooth height and a reduced lingual cusp (only slightly larger than the labial cusp). We compared our data with other studies on premaxillary, maxillary, and palatal teeth in Plethodon and found overall similarities in …
Bats Of Hot Springs National Park, Arkansas, David A. Saugey, Dianne G. Saugey, Gary A. Heidt, Darrell R. Heath
Bats Of Hot Springs National Park, Arkansas, David A. Saugey, Dianne G. Saugey, Gary A. Heidt, Darrell R. Heath
Journal of the Arkansas Academy of Science
A survey was conducted from June 1982 through January 1987 to determine the occurrence of bat species in Hot Springs National Park, Garland County, Arkansas; an area of approximately 2025 hectares. A total of 309 bats in the families Molossidae and Vespertilionidae were captured. Species represented included: Eptesicus fuscus, Lasiurus borealis, Lasiurus cinereus, Nycticeius humeralis, Pipistrellus subflavus, and Tadarida brasiliensis cynocephala.
Distribution And Status Of The Brazilian Free-Tailed Bat (Tadarida Brasiliensis Cynocephala) In Arkansas, David A. Saugey, Gary A. Heidt, Darrell R. Heath, Tim W. Steward, Daniel R. England, V. Rick Mcdaniel
Distribution And Status Of The Brazilian Free-Tailed Bat (Tadarida Brasiliensis Cynocephala) In Arkansas, David A. Saugey, Gary A. Heidt, Darrell R. Heath, Tim W. Steward, Daniel R. England, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
Investigations of building infestations, mist netting activities, and specimens submitted to the Arkansas Department of Health document the Brazilian free-tailed bat to be found in 14 Arkansas counties. Both overwintering and maternity colonies were examined. Numbers of individuals ranged from one to several thousand.
Toe Tip Morphology In Six Species Of Salamanders, Genus Ambystoma (Caudata: Ambystomatidae) From Arkansas Using Scanning Electron Microscopy, Stanley E. Trauth, J. D. Wilhide
Toe Tip Morphology In Six Species Of Salamanders, Genus Ambystoma (Caudata: Ambystomatidae) From Arkansas Using Scanning Electron Microscopy, Stanley E. Trauth, J. D. Wilhide
Journal of the Arkansas Academy of Science
The toe tip friction surface in six species of Ambystoma (A. annulatum, A.maculatum, A.opacum, A. talpoideum, A. texanum, and A. tigrinum) from Arkansas was examined using scanning electron microscopy. We found no sexual dimorphism in cell surface ultrastructure. Variation within and between species was considerable. The most active burrower, A. tigrinum, possessed the most disorganized cell surface, whereas the least active burrowers (A.annulatum, A.maculatum, and A. opacum) had morphologically similar and relatively smooth toe tips. In A. talpoideum and A. texanum, cell surfaces exhibited microprojections. Only these two species possessed mucous pores in close proximity to the friction surface. The …
Comments On Estimating Population Rate Of Increase From Age Frequency Data, C. Renn Tumlison, V. Rick Mcdaniel
Comments On Estimating Population Rate Of Increase From Age Frequency Data, C. Renn Tumlison, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
Although many papers have described assumptions and calculations of r from different kinds of data, none has compared estimates of r for the same real data set under different assumptions. We used the age distributions of gray foxes collected during six trapping seasons to estimate and compare r and lₓ series derived under different assumptions. Because trapped foxes are killed, they are believed by some to represent death history data. We found this treatment underestimates mortality so overestimates survivorship and leads to erroneous conclusions about the population. Use of a projection matrix allowed prediction of population size and thus allowed …
Reproductive Characteristics Of South Florida Sternotherus Odoratus And Kinosternon Baurii (Testudines: Kinosternidae), Walter E. Meshaka Jr.
Reproductive Characteristics Of South Florida Sternotherus Odoratus And Kinosternon Baurii (Testudines: Kinosternidae), Walter E. Meshaka Jr.
Journal of the Arkansas Academy of Science
No abstract provided.
Eggtooth Development And Morphology In The Six-Lined Racerunner Cnemidophorus Sexlineatus (Sauria: Teiidiae) Using Scanning Electron Microscopy, Stanley E. Trauth
Eggtooth Development And Morphology In The Six-Lined Racerunner Cnemidophorus Sexlineatus (Sauria: Teiidiae) Using Scanning Electron Microscopy, Stanley E. Trauth
Journal of the Arkansas Academy of Science
Eggtooth development and morphology in the six-lined racerunner, Cnemidophorus sexlineatus, were examined using scanning electron microscopy. The anlage of the embryonic eggtooth emerges from the anterior surface of the palate relatively late during embryonic development. The eggtooth proper erupts through an epithelial sheath and grows anteriorly to project beyond the rostral scale. The mature eggtooth is hollow, has a wall made of enamel and dentine, possesses a sharply-curved body and has a flattened, pointed tip. The eggtooth is shed within several days after the young hatch.
Forest Habitat Use By White-Tailed Deer In The Arkansas Coastal Plain, T. B. Wigley Jr., M. E. Garner
Forest Habitat Use By White-Tailed Deer In The Arkansas Coastal Plain, T. B. Wigley Jr., M. E. Garner
Journal of the Arkansas Academy of Science
Forest habitat use by five radio-equipped white-tailed deer (Odocoileus virginianus) was monitored in the Arkansas Coastal Plain during 1982-84. The deer were located 821 times. Use of forest types was compared to expected use as calculated from availability. The study area was also divided into 491 two-hectare cells for which timber characteristics and number of deer locations were determined. Pine sawtimber was the most heavily used forest type in all seasons and was used more often than expected during spring. Also used more than expected were brushy areas (clearcut but not site prepared) during spring, summer and fall and openings …
Sex Ratios In Bobcat Populations, C. Renn Tumlison, V. Rick Mcdaniel
Sex Ratios In Bobcat Populations, C. Renn Tumlison, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
Reported sex ratios in bobcat populations have suggested great variation ranging from strong male bias to strong female bias. Explanations offered for these observations have included factors of mobility, activity, behavior, inaccurate data collection, hunting pressure, and population density. Ratios are probably most representative during the winter, when females are no longer under constraints of parental care. Sex determination should be made by experienced observers and preferably through internal examination. The most productive direction for interpretation of validated ratios appears to be in terms of population density, hunting pressure, and the timing of harvest.