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Social and Behavioral Sciences Commons™
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Articles 1 - 5 of 5
Full-Text Articles in Social and Behavioral Sciences
Species Of Birds Newly Recorded In Arkansas Since 1985, Douglas A. James, Max Parker, Charles Mills, Joseph C. Neal
Species Of Birds Newly Recorded In Arkansas Since 1985, Douglas A. James, Max Parker, Charles Mills, Joseph C. Neal
Journal of the Arkansas Academy of Science
No abstract provided.
Reproductive Cycles In Two Arkansas Skinks In The Genus Eumeces (Sauria: Scincidae), Stanley E. Trauth
Reproductive Cycles In Two Arkansas Skinks In The Genus Eumeces (Sauria: Scincidae), Stanley E. Trauth
Journal of the Arkansas Academy of Science
Reproductive cycles of the southern coal skink (Eumeces anthracinus pluvialis) and the five-lined skink (E. fasciatus) were studied by examining museum specimens collected in Arkansas. Histological preparations of testes from each species revealed eight spermatogenic stages. Male coal skinks produced sperm by late February, at least one month before male five-lined skinks. Height of the testicular cycle (maximum sperm production-stage 6 = spermiogenesis) in E. a. pluvialis occurred in March and early April, whereas in E. fasciatus, spermiogenesis reached a peak in May. Testicular recrudescence began in late May in E. a. pluvialis and mid-July in E. fasciatus. The reproductive …
Recent Record Of The Plains Minnow, Hybognathus Placitus Girard, From Arkansas, Thomas M. Buchanan, Henry W. Robison
Recent Record Of The Plains Minnow, Hybognathus Placitus Girard, From Arkansas, Thomas M. Buchanan, Henry W. Robison
Journal of the Arkansas Academy of Science
No abstract provided.
Food Habits Of The Barn Owl (Tyto Alba) At A Nest Site In Southwest Arkansas, Johnathan L. Westmoreland, C. Renn Tumlison
Food Habits Of The Barn Owl (Tyto Alba) At A Nest Site In Southwest Arkansas, Johnathan L. Westmoreland, C. Renn Tumlison
Journal of the Arkansas Academy of Science
No abstract provided.
Female Reproductive Traits In Selected Arkansas Snakes, Stanley E. Trauth, Robert L. Cox, Walter E. Meshaka Jr., Brian P. Butterfield, Anthony Holt
Female Reproductive Traits In Selected Arkansas Snakes, Stanley E. Trauth, Robert L. Cox, Walter E. Meshaka Jr., Brian P. Butterfield, Anthony Holt
Journal of the Arkansas Academy of Science
Female reproductive characteristics of 17 genera of Arkansas snakes (27 species and subspecies) were examined. Most of the snakes (n= 495) were collected over a 10-year span (1984-1993). Methods used to estimate clutch and/or litter size were as follows: 1) counts of previtellogenic ovarian follicles,2) counts of vitellogenic ovarian follicles,3) counts of oviductal eggs or embryos, 4) counts of corpora luteal scars, and 5) counts of neonates from egg clutches or litters. In several species, Method 1 tended to overestimate clutch size as determined by Method 2 by as much as 100% (e.g., in Diadophis punctatus, Elaphe obsoleta, and Lampropeltis …