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Articles 1 - 16 of 16
Full-Text Articles in Life Sciences
Hawaiian Freshwater Fishes (Osteichthyes, Gobioidei) A Field Key To The Species Of Larvae And Postlarvae During Recruitment Into Fresh Waters, David C. Tate, J. Michael Fitzsimons, Richard P. Cody
Hawaiian Freshwater Fishes (Osteichthyes, Gobioidei) A Field Key To The Species Of Larvae And Postlarvae During Recruitment Into Fresh Waters, David C. Tate, J. Michael Fitzsimons, Richard P. Cody
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
Response To Byl, Russell W. Maatman
On Origins And Revelation, John Byl
On Origins And Revelation, John Byl
Pro Rege
This article is a response to Russell Maatman's "The Origins of the Human Family", Pro Rege, March 1991.
Zooplankton Community Abundance And Diversity In Dardanelle Reservoir, Arkansas, 1981-1990, John D. Rickett, Robert L. Watson
Zooplankton Community Abundance And Diversity In Dardanelle Reservoir, Arkansas, 1981-1990, John D. Rickett, Robert L. Watson
Journal of the Arkansas Academy of Science
Zooplankton samples were collected quarterly from five stations representing the discharge bay and four "control" or "dispersing impact" stations. Rotifers dominated all samples numerically and by the number of taxa. All major groups (Rotifera, Cladocera, Copepoda, and Protozoa) exhibited greatest abundances during the summer. Quarterly variations in abundance and number of taxa were documented. Except for an increase in taxonomic analysis detail between 1981 and 1984 resulting in several more taxa added to the list, no long-term increases, declines or repeating cycles were apparent. Margalef's Richness Index reflected this change and showed a long-term increase with evidence of a 5- …
Distributional Survey Of The Bird-Voiced Treefrog, Hyla Avivoca (Anura: Hylidae), In Arkansas, Stanley E. Trauth
Distributional Survey Of The Bird-Voiced Treefrog, Hyla Avivoca (Anura: Hylidae), In Arkansas, Stanley E. Trauth
Journal of the Arkansas Academy of Science
A field study of the bird-voiced treefrog, Hyla avivoca, was conducted in Arkansas during the summer of 1991. A total of 75 separate sites in 23 counties was visited. Males with their distinctive whistle-like calls were listened for at night at each site. Breeding colonies of Hyla avivoca were found in four of the six major river basins; the study established three new county records. Currently, this species has been documented at 14 sites in 10 counties; in very few situations were the treefrogs locally abundant (voucher specimens deposited in the Arkansas State University Museum of Zoology). Habitat perturbation and …
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.
Long-Term White-Tailed Deer Harvest Trends For The Southcentral United States, Richard A. Kluender, Philip A. Tappe, Michael E. Cartwright
Long-Term White-Tailed Deer Harvest Trends For The Southcentral United States, Richard A. Kluender, Philip A. Tappe, Michael E. Cartwright
Journal of the Arkansas Academy of Science
White-tailed deer herd size across the southcentral states continues to increase. Concurrent with this increase has come a total harvest level increase for most states. Southcentral states have increased bag limits on antlerless deer to insure that herd health is maintained as herd sizes approach total carrying capacity. Harvest growth rates, however, show irregularities from year to year. The cyclic pattern of harvest (and population) growth rate is of shorter duration than would be expected in a large ungulate population. An exogenous influence is suspected. Cyclic patterns in harvest growth rates move opposite the growth rate of epizootic hemorrhagic disease …
Phytoplankton Community Abundance And Diversity In Dardanelle Reservoir, Arkansas, 1981-1990, John D. Rickett, Robert L. Watson
Phytoplankton Community Abundance And Diversity In Dardanelle Reservoir, Arkansas, 1981-1990, John D. Rickett, Robert L. Watson
Journal of the Arkansas Academy of Science
Phytoplankton samples were collected quarterly from 1981-1990 at five stations representing discharge water from Arkansas Nuclear One, a nuclear generating station, and four "control" or "dispersal evaluation" stations. Seventy-five taxa representing five divisions were identified and enumerated. Community structure was evaluated using abundances, number of taxa, and Margalef's Richness, Shannon's Heterogeneity and Pielou's Evenness indices. No long-term trends were identified, but the beginning of cyclic variations, with a 7-year periodicity, in abundance, number of taxa, and Shannon's and Pielou's indices were apparent. Margalef's index values were constant during most of the study period. For all samples, t-tests and Mann-Whitney U …
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 …
Distribution Of The Southern Red-Backed Salamander, Plethodon Serratus (Caudata: Plethodontidae) In The Ouachita Mountain Region Of Arkansas, M. Doug Fletcher, Betty G. Cochran, Stanley E. Trauth, David A. Saugey
Distribution Of The Southern Red-Backed Salamander, Plethodon Serratus (Caudata: Plethodontidae) In The Ouachita Mountain Region Of Arkansas, M. Doug Fletcher, Betty G. Cochran, Stanley E. Trauth, David A. Saugey
Journal of the Arkansas Academy of Science
No abstract provided.
Sequential Occupation By Red-Cockaded Woodpeckers And Red-Bellied Woodpeckers In The Ouachita National Forest, Joseph C. Neal, Warren G. Montague, Douglas A. James
Sequential Occupation By Red-Cockaded Woodpeckers And Red-Bellied Woodpeckers In The Ouachita National Forest, Joseph C. Neal, Warren G. Montague, Douglas A. James
Journal of the Arkansas Academy of Science
No abstract provided.
Maternity Colony Of Gray Bats In A Non-Cave Site, Lorraine Timmerman, V. Rick Mcdaniel
Maternity Colony Of Gray Bats In A Non-Cave Site, Lorraine Timmerman, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
No abstract provided.
Age Specific Analysis Of Food Habits For Arkansas Raccoons (Procyon Lotor), J. D. Wilhide, V. Rick Mcdaniel, C. Renn Tumlison
Age Specific Analysis Of Food Habits For Arkansas Raccoons (Procyon Lotor), J. D. Wilhide, V. Rick Mcdaniel, C. Renn Tumlison
Journal of the Arkansas Academy of Science
No abstract provided.
Australian Genetic Resources Of Trifolium And Ornithopus Species, Richard Snowball, Kevin Foster, Bill Collins
Australian Genetic Resources Of Trifolium And Ornithopus Species, Richard Snowball, Kevin Foster, Bill Collins
Journal of the Department of Agriculture, Western Australia, Series 4
The introduction of improved pasture legumes into the cereal growing areas of southern Australia changed the face of our agricultural systems.
Subterranean clover was the first pasture legume to have a major impact, and the first varieties were available commercially in the 1930s. Since then, many varieties have been released, leading to the most recent release of Denmark, Gou/bum and Leura in 1992.
The development of burr, barrel and murex medics also had an impact on the pasture production of less acid heavy soils. Yellow serradella is still being developed for the more acid sandy soils.
This development of improved …
Test Detects Resistant Green Peach Aphids In Lupins, Francoise Berlandier, Ian Dadour
Test Detects Resistant Green Peach Aphids In Lupins, Francoise Berlandier, Ian Dadour
Journal of the Department of Agriculture, Western Australia, Series 4
Confirmation of insecticide resistance in green peach aphid in Western Australia's lupin crops means farmers will have to choose insecticides much more carefully to control this pest. Resistance within an aphid population varies, and when resistant aphids are no longer exposed to insecticides, they may revert back to being susceptible in as little as one generation. Furthermore, when these revertant populations are exposed to the same insecticides in the future, resistance quickly reoccurs. In this article, the authors discuss a test to determine the extent of insecticide resistance in green peach aphid and how to manage it.
On The Trail Of The Native Budworm, Kevin Walden
On The Trail Of The Native Budworm, Kevin Walden
Journal of the Department of Agriculture, Western Australia, Series 4
Native budworm, the worst pest of lupins, is a bit of a uiill-o-the-unsp. Some years the native budworm moths go virtually unnoticed. In others, they appear in plague proportions without warning - in these years, the cost to growers in lost yield runs into millions of dollars.
If an early warning system can be developed to predict the extent of moth flights into lupin crops, and this seems possible, major crop losses could be averted.
The Department of Agriculture has started research to develop a system of predicting the size of spring flights of native budworm moth. We need to …