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Articles 1 - 21 of 21
Full-Text Articles in Terrestrial and Aquatic Ecology
Comparison Of Two Year Classes Of Hybrid Grass Carp And Grass Carp For Aquatic Plant Control, Mike Freeze, Scott Henderson
Comparison Of Two Year Classes Of Hybrid Grass Carp And Grass Carp For Aquatic Plant Control, Mike Freeze, Scott Henderson
Journal of the Arkansas Academy of Science
Two year classes of grass carp and F, hybrids resulting from bighead carp male x grass carp female were compared at various stocking densities for aquatic plant control. One and two year old grass carp exhibited higher survival rates and better growth rates than the same age hybrid grass carp. The presence of grass carp or hybrid grass carp decreased both Secchi disc transparencies and dissolved oxygen values. Grass carp had a greater negative effect upon these measurements because they removed the vegetation quicker than the hybrid grass carp. These apparent detrimental effects on water quality are necessary trade-offs for …
Arkansas Range Extensions Of The Seminole Bat (Lasiurus Seminolus) And Eastern Big-Eared Bat (Plecotus Rafinesquii) And Additional County Records For The Hoary Bat (Lasiurus Cinereus), Silver-Haired Bat (Lasionycteris Noctivagans) And Evening Bat..., Darrell R. Heath, Gary A. Heidt, David A. Saugey, V. Rick Mcdaniel
Arkansas Range Extensions Of The Seminole Bat (Lasiurus Seminolus) And Eastern Big-Eared Bat (Plecotus Rafinesquii) And Additional County Records For The Hoary Bat (Lasiurus Cinereus), Silver-Haired Bat (Lasionycteris Noctivagans) And Evening Bat..., Darrell R. Heath, Gary A. Heidt, David A. Saugey, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
No abstract provided.
Abundance And Seasonal Occurrence Of Psorophora Columbiae In A Northeast Arkansas Ricefield Community, Larry A. Olson, Julia A. Huggins
Abundance And Seasonal Occurrence Of Psorophora Columbiae In A Northeast Arkansas Ricefield Community, Larry A. Olson, Julia A. Huggins
Journal of the Arkansas Academy of Science
Increased population levels of the dark ricefield mosquito, Psorophora columbiae (Dyar and Knab), have been shown to be associated with rice cultivation in Arkansas and several other states. Four standard New Jersey light traps were operated daily between May 30 and October 2 of 1981 and 1982 to determine the relative abundance and seasonal occurrence of this species in NE Arkansas. The effect of trap distance from nearby rice on the number of adult P. columbiae collected was assessed by comparing weekly totals from 2 traps located within 0.9 km of rice fields with totals from 2 traps situated beyond …
Phytoplankton Community Structure In Dardanelle Reservoir, Arkansas, 1975-1982, John D. Rickett, Robert L. Watson
Phytoplankton Community Structure In Dardanelle Reservoir, Arkansas, 1975-1982, John D. Rickett, Robert L. Watson
Journal of the Arkansas Academy of Science
Phytoplankton data were collected with standard equipment and procedures over an eight-year period (1975-1982) in Dardanelle Reservoir, Arkansas. Community abundance and diversity at the genus level are described. Sixty-five genera representing 35 families and five divisions were identified. Total phytoplankton abundance and diversity were quite uniform among the stations but fluctuated considerably with time. These fluctuations did not correspond clearly with season. Dominant taxa were seasonal, though, with diatoms being usually dominant in January, April and October, and blue-greens dominant in July. The phytoplankton community structure has not been significantly altered by the operation of ANO Unit I.
Twenty-Two New Species Of Spiders For The Arkansas Checklist, Mary L. Beck, Peggy Rae Dorris
Twenty-Two New Species Of Spiders For The Arkansas Checklist, Mary L. Beck, Peggy Rae Dorris
Journal of the Arkansas Academy of Science
No abstract provided.
Prairie Phenology And Seed Germination, Donald E. Culwell, Robert Wright
Prairie Phenology And Seed Germination, Donald E. Culwell, Robert Wright
Journal of the Arkansas Academy of Science
No abstract provided.
Status Of The Bat Myotis Keenii In The Arkansas Ozarks, Michael J. Harvey, V. Rick Mcdaniel
Status Of The Bat Myotis Keenii In The Arkansas Ozarks, Michael J. Harvey, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
No abstract provided.
Neviusia Alabamensis: A Phytogeographic Analysis, Alice A. Long
Neviusia Alabamensis: A Phytogeographic Analysis, Alice A. Long
Journal of the Arkansas Academy of Science
No abstract provided.
Aquatic Macroinvertebrates Of The Hiatt Prairie Region, Franklin County, Arkansas, Julie A. Huggins, George L. Harp
Aquatic Macroinvertebrates Of The Hiatt Prairie Region, Franklin County, Arkansas, Julie A. Huggins, George L. Harp
Journal of the Arkansas Academy of Science
No abstract provided.
Effects Of Sewage Pollution In The White River, Arkansas, Arthur V. Brown, Lawrence D. Willis, Peter P. Brussock
Effects Of Sewage Pollution In The White River, Arkansas, Arthur V. Brown, Lawrence D. Willis, Peter P. Brussock
Journal of the Arkansas Academy of Science
Recently there has been much emphasis placed on the importance of leaf detritus processing to the energetics of stream invertebrates. This study was designed primarily to assess the effects of municipal effluent on the ability of a stream community to utilize leaf detritus, and secondarily to evaluate the extent of the pollution of the White River by the Fayetteville, Arkansas, effluent discharge. Physical and chemical water quality and benthos were sampled periodically at one station upstream and two stations downstream from the discharge, and in the Richland Creek tributary. Processing of leaf detritus was also studied at each site using …
Short Creek Oolite (Lower Mississippian) Deposition, War Eagle Quarry, Madison County, Arkansas, Barbara A. Lisle
Short Creek Oolite (Lower Mississippian) Deposition, War Eagle Quarry, Madison County, Arkansas, Barbara A. Lisle
Journal of the Arkansas Academy of Science
The Short Creek Oolite is the only formally designated member of the Lower Mississippian Boone Formation. Although oolite deposits are often considered to be formed in shoal areas, detailed study of the War Eagle Short Creek disclosed characteristics incompatible with deposition as an oolite shoal. At the War Eagle Quarry, the Short Creek Oolite occurs between deep water strata and there is a conspicuous absence of cross-stratification and other shallow water bedding features. Modal analysis revealed a lower oolith content than found in Recent oolite shoals or in the Short Creek Oolite of Missouri, which has been interpreted as a …
Sicklefin Chub, Hybopsis Meeki, In The Mississippi River Bordering Arkansas, F. Allen Carter, John K. Beadles
Sicklefin Chub, Hybopsis Meeki, In The Mississippi River Bordering Arkansas, F. Allen Carter, John K. Beadles
Journal of the Arkansas Academy of Science
No abstract provided.
Spiders Collected From Abandoned Mine Tunnels In The Ouachita National Forest, Peggy Rae Dorris, David A. Saugey
Spiders Collected From Abandoned Mine Tunnels In The Ouachita National Forest, Peggy Rae Dorris, David A. Saugey
Journal of the Arkansas Academy of Science
No abstract provided.
Preliminary Report On The Zygoptera (Damselflies) Of Arkansas, George L. Harp
Preliminary Report On The Zygoptera (Damselflies) Of Arkansas, George L. Harp
Journal of the Arkansas Academy of Science
No abstract provided.
Zooplankton Population Structure In Three Reservoirs Near The Ouachita Mountain-Gulf Coastal Plain Interface, Stephen B. Smith, Thomas E. Moen
Zooplankton Population Structure In Three Reservoirs Near The Ouachita Mountain-Gulf Coastal Plain Interface, Stephen B. Smith, Thomas E. Moen
Journal of the Arkansas Academy of Science
No abstract provided.
Spawning The Grass Carp Female X Bighead Carp Male, Mike Freeze, Scott Henderson
Spawning The Grass Carp Female X Bighead Carp Male, Mike Freeze, Scott Henderson
Journal of the Arkansas Academy of Science
Methods and procedures for artificially spawning the female grass carp (Ctenopharyngodon idella) X male bighead carp (Aristichthys nobilis) are presented. Broodstock selection and treatment, hormone injections, ovulation, fertilization, hatching techniques and stocking rates are discussed. This paper outlines the procedures necessary to successfully produce hybrid grass carp
Zooplankton Community Structure In Dardanelle Reservoir, Arkansas, 1975-1982, John D. Rickett, Robert L. Watson
Zooplankton Community Structure In Dardanelle Reservoir, Arkansas, 1975-1982, John D. Rickett, Robert L. Watson
Journal of the Arkansas Academy of Science
Zooplankton was collected at 10 stations in Dardanelle Reservoir from 1975 to 1982. Current data were compared to a five-year preoperational study phase. Rotifer taxa strongly dominated the community. Overall abundance was higher, variety about the same and diversity lower than those of comparable studies. Thermal discharges caused a dominance shift between two rotifer taxa, slightly depressed abundance and variety, did not noticeably affect diversity and elevated the phytoplankton/zooplankton ratio. Heated effluent also stimulated stronger fluctuations in abundance and variety. Other studies indicate that in upper sections of the Arkansas River drainage, microcrustaceans dominate lake habitats whereas rotifers dominate river …
Fishes Of The Antoine River, Little Missouri River System, Southwestern Arkansas, Henry W. Robison, Elaine Laird, Darryl Koym
Fishes Of The Antoine River, Little Missouri River System, Southwestern Arkansas, Henry W. Robison, Elaine Laird, Darryl Koym
Journal of the Arkansas Academy of Science
The fishes of the Antoine River (Little Missouri River system) in southwestern Arkansas were surveyed from September, 1980 - June, 1982. Thirty-four field collections plus literature and museum records, revealed a total of 60 species in 29 genera representing 16 families to presently inhabit the river system. Comments are presented on life history aspects, systematics and occurrence of fishes in the study area.
Range Extension Of The Silver Carp, Hypophthalmichthys Molitrix, F. Allen Carter, John K. Beadles
Range Extension Of The Silver Carp, Hypophthalmichthys Molitrix, F. Allen Carter, John K. Beadles
Journal of the Arkansas Academy of Science
No abstract provided.
First Host Plant Records For Chelysomidea Guttata (Herrich-Schaeffer) (Hemiptera: Scutelleridae, With Notes On The Biology And Distribution, Julia L. Reid, Harvey E. Barton
First Host Plant Records For Chelysomidea Guttata (Herrich-Schaeffer) (Hemiptera: Scutelleridae, With Notes On The Biology And Distribution, Julia L. Reid, Harvey E. Barton
Journal of the Arkansas Academy of Science
No abstract provided.
First Report Of Brazilian Free-Tailed Bat Maternity Colonies In Arkansas, David A. Saugey, Darrell R. Heath, Clark Efaw, Gary A. Heidt, Teresa E. Beggs
First Report Of Brazilian Free-Tailed Bat Maternity Colonies In Arkansas, David A. Saugey, Darrell R. Heath, Clark Efaw, Gary A. Heidt, Teresa E. Beggs
Journal of the Arkansas Academy of Science
No abstract provided.