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Articles 31 - 60 of 69
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Distribution Of Leconte's Free-Tailed Bat (Tadarida Brasiliensis Cynocephala) In Arkansas, With Notes On Reproduction And Natural History, David A. Saugey, D. Blake Sasse, J. D. Wilhide, Drew Reed, Tammy R. Jones, Darrell R. Heath, Daniel R. England
Distribution Of Leconte's Free-Tailed Bat (Tadarida Brasiliensis Cynocephala) In Arkansas, With Notes On Reproduction And Natural History, David A. Saugey, D. Blake Sasse, J. D. Wilhide, Drew Reed, Tammy R. Jones, Darrell R. Heath, Daniel R. England
Journal of the Arkansas Academy of Science
During the past 20 years (1982-2001) we have studied the biology, occurrence and distribution of LeConte's (Brazilian) free-tailed bat, Tadarida brasiliensis cynocephala, in Arkansas. Colonies and individuals were reported from man made structures only. Four new county records have been documented since 1988, extending the range from the central part of the state to Arkansas's northern-most tier of counties. Numerous nuisance maternity colonies were investigated during exclusion activities and one, year-round colony provided the majority of reproductive data. A total of 152 free-tailed bats was submitted to the Arkansas Department of Health Rabies Laboratory (1982-2001); most during February through April, …
Floristic Status Of Log Ferns (Dryopteris) In Arkansas, James H. Peck
Floristic Status Of Log Ferns (Dryopteris) In Arkansas, James H. Peck
Journal of the Arkansas Academy of Science
The fern flora of Arkansas consists of 96 taxa, including five species and three hybrids of the Log Fern genus Dryopteri This report summarizes a twenty year floristic and ecologic study of their distribution and abundance in Arkansas. Historica data are presented to review the slow accumulation of taxa reported in floras of Arkansas from early collectors to 1980 and the rapid accumulation of taxa since 1980 employing modern field techniques. Chorological data and floristic data are presented based on field, herbarium, and literature studies to correct the record and document the known localities of the eight Arkansas taxa: Dryopteris …
Home Ranges And Movements Of Adult Deer On Fort Chaffee, Arkansas, Gregory G. Humphreys, Thomas A. Nelson
Home Ranges And Movements Of Adult Deer On Fort Chaffee, Arkansas, Gregory G. Humphreys, Thomas A. Nelson
Journal of the Arkansas Academy of Science
We radio-tracked 27 white-tailed deer (Odocoileus virginianus) weekly for one year on Fort Chaffee, Arkansas, to investigate their seasonal home ranges and movements between hunted areas and refuges on this military base. This work resulted in2,123 separate radiolocations, of which 85% (1,799) were suitable for use in home range analyses. We used the McPAAL computer package to estimate home range using the Harmonic Mean and minimum convex polygon (MCP) methods. Harmonic mean estimates were based on 95% contour lines. Home range size differed between the sexes and methods. Male home ranges were larger than those of females (t= 3.32, P<0.01; harmonic mean) (t=2.07, P<0.05; MCP). Average home range sizes for males and females based on the harmonic mean method were estimated to be 483 ha and 181 ha, respectively, whereas home range estimates for males and females using the MCP method were 636 ha and 289 ha, respectively. The average home range size for all deer was 259 ha (harmonic mean) and 379 ha (MCP). We found no evidence that females restricted their home ranges during the fawning period. However, females' home ranges expanded during the breeding season, perhaps to find mates. Few deer moved to refuge areas that were off-limits to hunters during the hunting season.
Ultrastructure Of Cepedietta Virginiensis (Protista: Haptophrynidae), From The Gall Bladder Of The Pickerel Frog, Rana Palustris, In Arkansas, Chris T. Mcallister, Stanley E. Trauth
Ultrastructure Of Cepedietta Virginiensis (Protista: Haptophrynidae), From The Gall Bladder Of The Pickerel Frog, Rana Palustris, In Arkansas, Chris T. Mcallister, Stanley E. Trauth
Journal of the Arkansas Academy of Science
No abstract provided.
One-Year Study Of The Species Diversity And Relative Abundance Of Snakes And Lizards In The Jack Mountain Region Of Hot Springs County, Arkansas, Vincent A. Cobb, Jeff A. Summerhill
One-Year Study Of The Species Diversity And Relative Abundance Of Snakes And Lizards In The Jack Mountain Region Of Hot Springs County, Arkansas, Vincent A. Cobb, Jeff A. Summerhill
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 …
Comparative Gas-Exchange In Leaves Of Intact And Clipped, Natural And Planted Cherrybark Oak (Quercus Pagoda Raf.) Seedlings, Brian Roy Lockhart, John D. Hodges
Comparative Gas-Exchange In Leaves Of Intact And Clipped, Natural And Planted Cherrybark Oak (Quercus Pagoda Raf.) Seedlings, Brian Roy Lockhart, John D. Hodges
Journal of the Arkansas Academy of Science
Gas-exchange measurements, including CO2 -exchange rate (net photosynthesis), stomatal conductance, and transpiration, were conducted on intact and clipped cherrybark oak (Quercus pagoda Raf.) seedlings growing in the field and in a nursery bed. Seedlings in the field, released from midstory and understory woody competition, showed significant increases in gas-exchange compared to non-released seedlings due to increases in light levels reaching seedlings. Concurrently, little difference occurred in the CO2 -exchange rate between intact and clipped seedlings in the released treatment although clipped seedlings maintained a consistently greater rate of stomatal conductance. In order to reduce the high variability of light levels …
Botanical Survey Of A Cypress-Tupelo Swamp, Veryl V. Board, Charlotte Allen, Andrea Reeves
Botanical Survey Of A Cypress-Tupelo Swamp, Veryl V. Board, Charlotte Allen, Andrea Reeves
Journal of the Arkansas Academy of Science
Collection of plants from a cypress-tupelo swamp located at the eastern border of Independence County was part of a long range plan to document the flora of the county. Efforts were made to determine if the study area would fit the current federal definition of wetlands which requires aperiodic or permanent inundation of the soil.
Larval Chironomids Of The St. Francis Sunken Lands In Northeast Arkansas, Betty G. Cochran, Edmond J. Bacon Jr., George L. Harp
Larval Chironomids Of The St. Francis Sunken Lands In Northeast Arkansas, Betty G. Cochran, Edmond J. Bacon Jr., George L. Harp
Journal of the Arkansas Academy of Science
Sixty semi-annual collections (August 1987-July 1988) were made from 30 stations by sampling each station twice for 1.5 man-hours with an aquatic dipnet. Larval chironomids were mounted on slides and identified at 400-1000 magnifications using a Leitz Dialux 20 EB microscope. A survey of the aquatic macroinvertebrates of the St. Francis Sunken Lands in northeast Arkansas revealed 36 taxa of Order Diptera, Family Chironomidae. The taxa were used to evaluate the general health of the aquatic environment. Stations that were located within the least disturbed areas, which were old river channels and oxbows, contained the highest number of organisms and …
Arkansas Range Extensions Of The Eastern Small-Footed Bat (Myotis Leibii) And Northern Long-Eared Bat (Myotisseptentrionalis) And Additional County Records For The Silver-Haired Bat (Lasionycteris Noctivagans), Hoary Bat (Lasiurus Cinereus), Southeastern Bat (Myotis Austroriparius), And Rafinesque's Big-Eared Bat (Plecotus Rafinesquii), David A. Saugey, V. Rick Mcdaniel, Daniel R. England, Marsha C. Rowe, Laura R. Chandler-Mozisek, Betty G. Cochran
Arkansas Range Extensions Of The Eastern Small-Footed Bat (Myotis Leibii) And Northern Long-Eared Bat (Myotisseptentrionalis) And Additional County Records For The Silver-Haired Bat (Lasionycteris Noctivagans), Hoary Bat (Lasiurus Cinereus), Southeastern Bat (Myotis Austroriparius), And Rafinesque's Big-Eared Bat (Plecotus Rafinesquii), David A. Saugey, V. Rick Mcdaniel, Daniel R. England, Marsha C. Rowe, Laura R. Chandler-Mozisek, Betty G. Cochran
Journal of the Arkansas Academy of Science
We continued field studies of bats in non-cave regions of Arkansas from 1989 to present and utilized specimens submitted to the Arkansas Department of Health Rabies Laboratory to establish Arkansas range extensions for the eastern smallfooted bat (Myotis leibii) and northern long-eared bat (Myotisseptentrionalis). In addition, we documented additional county records for the silver-haired bat (Lasionycteris noctivagans), hoary bat (Lasiurus cinereus), southeastern bat (Myotis austroriparius), and Rafinesque's big-eared bat (Plecotus rafinesquii).
Status Of The Ozark Hellbender, Cryptobranchus Bishopi (Urodela: Cryptobranchidae), In The Spring River, Fulton County, Arkansas, Stanley E. Trauth, J. D. Wilhide, Patrick Daniel
Status Of The Ozark Hellbender, Cryptobranchus Bishopi (Urodela: Cryptobranchidae), In The Spring River, Fulton County, Arkansas, Stanley E. Trauth, J. D. Wilhide, Patrick Daniel
Journal of the Arkansas Academy of Science
We conducted a tag and release study of the Ozark hellbender along a 26 km stretch of the Spring River from mid-July through mid-November, 1991, to determine current population levels. Salamanders were collected by hand with the aid of scuba diving equipment. Thirteen visits(36 dive hrs.) to10 selected access sites yielded 20 animals. Compared to previously published data of the early 1980's which indicated large, striving populations of C. bishopi(in some cases, > 300 individuals) in the Spring River, our study found perilously low numbers of salamanders. This drastic decline may be attributed to over collection of specimens for scientific or …
Measuring Shrubland Vegetational Structure Using Avian Habitats As An Example, Douglas A. James
Measuring Shrubland Vegetational Structure Using Avian Habitats As An Example, Douglas A. James
Journal of the Arkansas Academy of Science
Vegetational sampling of avian habitats stresses the use of methods primarily designed for forest birds. This paper describes a technique for sampling vegetational structure in uneven patchy habitats such as shrublands. Using the method, avian habitats in old field shrublands of northwestern Arkansas were analyzed.
Biological Vectors For The Dispersal Of Colletotrichum Gloeosporioides, X. B. Yang, D. O. Tebeest, E. L. Moore
Biological Vectors For The Dispersal Of Colletotrichum Gloeosporioides, X. B. Yang, D. O. Tebeest, E. L. Moore
Journal of the Arkansas Academy of Science
Green treefrogs (Hyla cinerea) and grasshoppers (Melanoplus differentialis and Conocephalus fasciatus) commonly observed in Arkansas rice fields, are dispersal vectors for Colletotrichum gloeosporioides f. sp. aeschynomens, a causal agent of anthracnose of northern jointvetch. Treefrogs and grasshoppers captured from rice or soybean fields with diseased northern jointvetch were placed in containers in contact with healthy northern jointvetch plants. An average of 90% of northern jointvetch plants was infected by the pathogen with up to 10 lesions per plant using treefrog vectors. Experiments were done in the greenhouse on frog dispersal by monitoring disease development from a point source in closed …
Past And Present Distribution Of The Red-Cockaded Woodpecker Picoides Borealis And Its Habitat In The Ouachita Mountains, Arkansas, Joseph C. Neal, Warren G. Montague
Past And Present Distribution Of The Red-Cockaded Woodpecker Picoides Borealis And Its Habitat In The Ouachita Mountains, Arkansas, Joseph C. Neal, Warren G. Montague
Journal of the Arkansas Academy of Science
Within the past 15 years, at least 41 and probably more active cavity tree clusters (or colonies) of Red cockaded Woodpeckers (Picoides borealis) have existed in remnant, mature shortleaf pine (Pinus echinata) woodlands in the Ouachita Mountains of Arkansas. These clusters were located on both private timberlands and in the Ouachita National Forest. Fewer than half of this number were still active in early 1991, and none remained on private timberlands. The species is presently restricted to the xeric, western margins of the Ouachitas in Scott and Polk counties within the confines of the Ouachita National Forest where it receives …
Distribution, Scutellation, And Reproduction In The Queen Snake, Regina Septemvittata (Serpentes: Colubridae), From Arkansas, Stanley E. Trauth
Distribution, Scutellation, And Reproduction In The Queen Snake, Regina Septemvittata (Serpentes: Colubridae), From Arkansas, Stanley E. Trauth
Journal of the Arkansas Academy of Science
The queen snake, Regina septemvittata, has a disjunct portion of its distribution in Arkansas. This rare, crayfish-eating species is best known from only a few isolated populations from several major streams that flow out of the Boston Mountains of the Ozark Plateau. A field study of this species was conducted during the summer of 1990, and only 4 specimens were documented. Gravid females were collected in July; sperm production was also noted in July. Parturition presumably takes place in August or early September. This species may qualify as threatened or endangered in Arkansas.
Identifying Colibri Hummingbirds Occurring In Arkansas Using Indirect Measurements, Douglas A. James
Identifying Colibri Hummingbirds Occurring In Arkansas Using Indirect Measurements, Douglas A. James
Journal of the Arkansas Academy of Science
No abstract provided.
Range Extension Of The Endangered Gray Bat, Myotis Grisescens, Into The Arkansas River Valley, Thomas A. Nelson, David A. Saugey, Lee E. Carolan
Range Extension Of The Endangered Gray Bat, Myotis Grisescens, Into The Arkansas River Valley, Thomas A. Nelson, David A. Saugey, Lee E. Carolan
Journal of the Arkansas Academy of Science
No abstract provided.
Aggressive Interactions Between Male Cotton Mice (Peromyscus Gossypinus) And Male Texas Mice (P. Attwateri), John A. Peppers, David W. Royal, Gary A. Heidt
Aggressive Interactions Between Male Cotton Mice (Peromyscus Gossypinus) And Male Texas Mice (P. Attwateri), John A. Peppers, David W. Royal, Gary A. Heidt
Journal of the Arkansas Academy of Science
No abstract provided.
Analysis Of The Fall And Winter Diet Of The Bobcat In Eastern Arkansas, C. Renn Tumlison, V. Rick Mcdaniel
Analysis Of The Fall And Winter Diet Of The Bobcat In Eastern Arkansas, C. Renn Tumlison, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
Food habits of the bobcat (Felis rufus) in eastern Arkansas were examined based on stomach contents of 148 specimens. Rabbits (Sylvilagus floridanus and S. aquaticus) were the primary food source for males, females, and kittens. Rice rats (Oryzomys palustris), nutria (Myocastor coypus), and several species of waterfowl are first reported as food of bobcats in Arkansas. Cotton rats (Sigmodon hispidus) and muskrats (Ondatra zibethica) were more common in bobcat diets in eastern versus western Arkansas. Adult males did not use smaller prey but this food source was common, in kittens; females were intermediate in their use of smaller prey.
Bats Of The Ouachita Mountains, David A. Saugey, Darrell R. Heath, Gary A. Heidt
Bats Of The Ouachita Mountains, David A. Saugey, Darrell R. Heath, Gary A. Heidt
Journal of the Arkansas Academy of Science
A survey was conducted from June, 1982 through January, 1989 to determine the occurrence of bat species in the Ouachita Mountain region of west-central Arkansas and southeastern Oklahoma, with emphasis on censusing lands managed by the USDA Forest Service, Ouachita National Forest. Seven genera and 13 species of bats in the families Vespertilionidae and Molossidae were captured. Species represented included: Eptesicus fuscus, Lasionycteris noctivagans, Lasiurus borealis, Lasiurus cinereus, Lasiurus seminolus, Myotis austroriparius, Myotis keenii, Myotis leibii, Myotis lucifugus, Myotissodalis, Nycticeius humeralis, Pipistrellus subflavus, and Tadarida brasiliensis cynocephala.
Blackland Prairies Of Southwestern Arkansas, Thomas L. Foti
Blackland Prairies Of Southwestern Arkansas, Thomas L. Foti
Journal of the Arkansas Academy of Science
The Blackland Prairie community type has been described in Texas; related communities exist in Alabama and Mississippi. The Arkansas variant of the community has not been described in detail. Since the Arkansas Natural Heritage Commission began a systematic inventory of the community in 1985, more than 36 remnants have been identified that retain substantial natural character. However, all show some degree of disturbance. Based on aerial photo interpretation, aerial inspection, and ground study, an initial description of the community is presented, including original distribution, soil, vegetation and relationship to similar communities of Texas, Mississippi, and Alabama.
Bibliographic Summary Of Arkansas Field Botany, James H. Peck, Carol J. Peck
Bibliographic Summary Of Arkansas Field Botany, James H. Peck, Carol J. Peck
Journal of the Arkansas Academy of Science
Over 750 references, compiled over the past five years, are presented on floristics, taxonomy, autecology, synecology, species biology, habitat analysis, impact analysis, paleoenvironment, phytogeography, and history of field botany in Arkansas. This bibliography is reported to facilitate efforts to document and interpret the flora, the vegetation, and the natural heritage of Arkansas and to encourage others to participate in that collective effort.
Proceedings Of The Arkansas Academy Of Science - Volume 42 1988, Academy Editors
Proceedings Of The Arkansas Academy Of Science - Volume 42 1988, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
In Memoriam: Lowell F. Bailey 1911-1988, Leo J. Paulissen
In Memoriam: Lowell F. Bailey 1911-1988, Leo J. Paulissen
Journal of the Arkansas Academy of Science
No abstract provided.
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.
Population Decline Of The Endangered Indiana Bat, Myotis Sodalis, In Arkansas, Michael J. Harvey, V. Rick Mcdaniel
Population Decline Of The Endangered Indiana Bat, Myotis Sodalis, In Arkansas, Michael J. Harvey, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
No abstract provided.
Harvest Trends Of The Bobcat (Felix Rufus) In Arkansas, C. Renn Tumlison, V. Rick Mcdaniel
Harvest Trends Of The Bobcat (Felix Rufus) In Arkansas, C. Renn Tumlison, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
Arkansas bobcat fur harvest records were examined in relation to forest cover, furbuyer distribution, and price. Availability of forest cover correlated with areas of greatest harvest, and a dynamic forest products industry in southern Arkansas is believed to support a greater density, and therefore greater harvest, of bobcats. Comparison of furbuyer distribution with harvest level among physiographic regions suggested that the fur industry in southern Arkansas could expand. Prices increased dramatically in the 1970's, and 94.5% of the variation in harvest level could be explained by price.
Comparison Of The Symbiotic Fauna Of The Family Plethodontidae In The Ouachita Mountains Of Western Arkansas, Douglas A. Winter, Wojciech M. Zawada, Arthur A. Johnson
Comparison Of The Symbiotic Fauna Of The Family Plethodontidae In The Ouachita Mountains Of Western Arkansas, Douglas A. Winter, Wojciech M. Zawada, Arthur A. Johnson
Journal of the Arkansas Academy of Science
During the spring of 1985, 101 salamanders representing six host species (29 Plethodon ouachitae, 25 P. caddoensis, 6 P. fourchensis, 23 P. serratus, 13 Desmognathus brimleyorum, and 5 P. glutinosus glutinosus) were collected from six localities in three counties in Arkansas (Polk, Scott, and Montgomery) and examined for symbionts. With the exception of Hannemania dunni, all symbionts recovered from the first five species listed constitute new host records, and the endoparasitic fauna in all species establish new locality records. Examinations revealed one or more species of parasites in 82% of the hosts. Eight species of symbionts (3 nematode, 1 trematode, …
A Check-List Of The Spiders Of Arkansas, Peggy Rae Dorris
A Check-List Of The Spiders Of Arkansas, Peggy Rae Dorris
Journal of the Arkansas Academy of Science
Collections of spiders were made from 1966, to the present in the six physiographic regions of Arkansas. During this time 435 species representing 35 families were collected and recorded.
Seasonal Abundance, Movement And Diversity Of Fishes In An Ozark Stream, Michael R. Dewey
Seasonal Abundance, Movement And Diversity Of Fishes In An Ozark Stream, Michael R. Dewey
Journal of the Arkansas Academy of Science
Seasonal fluctuations in fish abundance in Mud Creek occurred throughout the year at all sampling stations. At the two upper stations abundance was high and unstable during winter and early spring and decreased after heavy rainfall in mid-April. Abundance was low throughout the summer months, increasing in the fall due to large numbers of young-of-the-year. However, a different seasonal cycle occurred at the lower station which included deeper pools. Numbers were low and stable throughout the winter and early spring but high and unstable during the summer. Bigeye shiners (Notropis boops) and bluntnose minnows (Pimephales notatus) were the most mobile …