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Articles 1 - 10 of 10

Full-Text Articles in Life Sciences

Sensory Head Pores And Canals In Goodeid Fishes, John Michael Fitzsimons Dec 1981

Sensory Head Pores And Canals In Goodeid Fishes, John Michael Fitzsimons

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Geographic Variation In The Scrub Euphonia, Robert W. Dickerman Dec 1981

Geographic Variation In The Scrub Euphonia, Robert W. Dickerman

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


The Leopard In Africa: Biological And Cultural Realities, Norman Myers Jan 1981

The Leopard In Africa: Biological And Cultural Realities, Norman Myers

International Journal for the Study of Animal Problems

The author comments on a proposal to change the leopard's status in Africa from endangered to threatened, which would open the leopard up to sport hunting. This proposed change would be a mistake, in the author's opinion. While the leopard still occurs in satisfactory numbers in some countries despite being rarely seen, its population is much lower than it could in other countries. The author notes that the real problem is not the species' biological status but the institutional, socio-cultural, and economic considerations. Wildlife conservation in Africa is challenging enough without the further complications that sport hunting brings.


Occurrence Of The Land Planarians Bipalium Kewense And Geoplana Sp. In Arkansas, James J. Daly, Julian T. Darlington Jan 1981

Occurrence Of The Land Planarians Bipalium Kewense And Geoplana Sp. In Arkansas, James J. Daly, Julian T. Darlington

Journal of the Arkansas Academy of Science

No abstract provided.


Pentatomidae Of Arkansas, Harvey E. Barton, Linda A. Lee Jan 1981

Pentatomidae Of Arkansas, Harvey E. Barton, Linda A. Lee

Journal of the Arkansas Academy of Science

A total of 30 genera and 53 species and subspecies of Pentatomidae are reported as occurring or possibly occurring in Arkansas. Fifty species and subspecies contained in 29 genera were collected or recorded from previously collected material. Based on distributional records in the literature, three additional species and one genus are listed as probably occurring in Arkansas. County and seasonal records are reported for each taxon.


Microhabitat Distribution And Its Effect Of Prey Utilization In Sympatric Populations Of Plethodon Glutinosus And Plethodon Dorsalis In Northwestern Arkansas, James M. Britton Jan 1981

Microhabitat Distribution And Its Effect Of Prey Utilization In Sympatric Populations Of Plethodon Glutinosus And Plethodon Dorsalis In Northwestern Arkansas, James M. Britton

Journal of the Arkansas Academy of Science

A study was done on sympatric populations of Plethodon glutinosus and P. dorsalis in northwestern Arkansas to determine the relative distribution of the two species and the relationship between their distribution and the utilization of available prey. Upon capture, total length, location, and habitat type were recorded for each salamander. Stomach content samples were obtained by forced regurgitation, and the animals were released. Samples of the local litter fauna were taken to determine prey availability. Habitat data were obtained for 171 salamanders; 76 P. glutinosus and 95 P. dorsalis. Stomach content samples were taken from 67 salamanders; 32 P. glutinosus …


Seasonal Abundance, Movement And Diversity Of Fishes In An Ozark Stream, Michael R. Dewey Jan 1981

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 …


Preliminary Report On The Fishes Of The Upper Saline River, Polk And Howard Counties, Arkansas, And Observations On Their Relationships With Land Use And Physiochemical Conditions, Stephen A. Sewell Jan 1981

Preliminary Report On The Fishes Of The Upper Saline River, Polk And Howard Counties, Arkansas, And Observations On Their Relationships With Land Use And Physiochemical Conditions, Stephen A. Sewell

Journal of the Arkansas Academy of Science

The Saline River of southwest Arkansas was impounded by Dierks Lake in 1975. Intensive collecting efforts were made in the river system above Dierks Lake during March, April, and May 1980. Collected specimens were compared with ichthyofaunal lists prior to impoundment. Historic occurrants which were not collected include Notropis amnis, Notropis ortenburgeri, Moxostoma duquesnei, Ammocrypta vivax, and Percina copelandi. Additions to the ichthyofaunal list for the drainage include Fundulus notatus, Etheostoma spectabile, and Percina caprodes. The evidence indicates that 33 species representing six families inhabit the system from the headwaters in Polk County, Arkansas, to Dierks Lake, Howard County, Arkansas. …


Crowley's Ridge Biological Station--An Educational Center, Jewel E. Moore, Inez Hartsoe Jan 1981

Crowley's Ridge Biological Station--An Educational Center, Jewel E. Moore, Inez Hartsoe

Journal of the Arkansas Academy of Science

No abstract provided.


Flying Insect Populations As Sampled By Malaise Trap On Crowley's Ridge In Northeast Arkansas, Lynita M. Cooksey, Harvey E. Barton Jan 1981

Flying Insect Populations As Sampled By Malaise Trap On Crowley's Ridge In Northeast Arkansas, Lynita M. Cooksey, Harvey E. Barton

Journal of the Arkansas Academy of Science

Malaise trap collections from woodlot and open field sampling sites on Crowley's Ridge yielded 10,830 individuals during the months of May, July and September, 1980. Greatest numbers of insects were collected in May, with fewest in September. Four orders comprised 97% of the total catch: Diptera (57%), Lepidoptera (17%), Hymenoptera (15%) and Homoptera (8%). Coleoptera, Hemiptera, Neuroptera, Odonata and Orthoptera comprised the remaining 3%. Ordinal composition and seasonal occurrence patterns are discussed and compared for the two sampling sites.