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1994

Journal of the Arkansas Academy of Science

Ecology and Evolutionary Biology

Articles 1 - 8 of 8

Full-Text Articles in Life Sciences

First Record Of The Channel Shiner, Notropis Wickliffi Trautman, In Arkansas And Comments On The Current River Populations Of Notropis Volucellus (Cope), Henry W. Robison, Thomas M. Buchanan Jan 1994

First Record Of The Channel Shiner, Notropis Wickliffi Trautman, In Arkansas And Comments On The Current River Populations Of Notropis Volucellus (Cope), Henry W. Robison, Thomas M. Buchanan

Journal of the Arkansas Academy of Science

No abstract provided.


Spatial Distributions Of Three Species Of Desmognathus In A North Carolina Stream, James J. English, Alvan A. Karlin, Laurie D. Lacer Jan 1994

Spatial Distributions Of Three Species Of Desmognathus In A North Carolina Stream, James J. English, Alvan A. Karlin, Laurie D. Lacer

Journal of the Arkansas Academy of Science

Salamanders of the family Plethodontidae comprise the most common salamanders in eastern North America. It is not uncommon for more than 10 plethodontid species to occur syntopically in one creek. The purpose of this research was to determine whether the spatial distribution of one species affected the spatial distribution of other species. Geographic Information System technology and nearest-neighbor analyses were used to determine the spatial distributions of three species of the salamander genus Desmognathus. The analysis demonstrates that D. ochrophaeus and D. monticola change their spatial use from a random distribution during the day to a clumped distribution during evening …


Pleistocene And Halocene Remains From The Red River, Southwest Arkansas, Terry A. Sanders Jan 1994

Pleistocene And Halocene Remains From The Red River, Southwest Arkansas, Terry A. Sanders

Journal of the Arkansas Academy of Science

Vertebrate remains have been found on gravel bars of the Red River in southwest Arkansas, northeast Louisiana, and east Texas. The majority of these specimens were recovered by amateur archaeologists and Dr. Frank Schambach of the Arkansas Archaeology Survey. Extinct species of bison (Bison sp.), mastodon (Mammut americanum), pampathere (Holmesina septentrionalis), llama (Palaeolama mirifica), tortoises (Geochelone sp.), and (Terrapene sp.) indicate a Pleistocene component in the region's alluvium. The giant tortoise, pampathere, and llama represent first known occurrences of these species for the state of Arkansas. Search times between finds were recorded for seven localities. The richest gravel bar averaged …


Renewal And Recovery: Shortleaf Pine /Bluestem Grass Ecosystem And Red-Cockaded Woodpeckers, George A. Bukenhofer, Joseph C. Neal, Warren G. Montague Jan 1994

Renewal And Recovery: Shortleaf Pine /Bluestem Grass Ecosystem And Red-Cockaded Woodpeckers, George A. Bukenhofer, Joseph C. Neal, Warren G. Montague

Journal of the Arkansas Academy of Science

No abstract provided.


Distributional Records Of The Badger (Taxidea Taxus) In Arkansas, Michael E. Cartwright, Gary A. Heidt Jan 1994

Distributional Records Of The Badger (Taxidea Taxus) In Arkansas, Michael E. Cartwright, Gary A. Heidt

Journal of the Arkansas Academy of Science

No abstract provided.


Long-Range Dispersal Of A Red-Cockaded Woodpecker, Warren G. Montague, George A. Bukenhofer Jan 1994

Long-Range Dispersal Of A Red-Cockaded Woodpecker, Warren G. Montague, George A. Bukenhofer

Journal of the Arkansas Academy of Science

No abstract provided.


Long-Term Study Of Benthos In Dardanelle Reservoir, John D. Rickett, Robert L. Watson Jan 1994

Long-Term Study Of Benthos In Dardanelle Reservoir, John D. Rickett, Robert L. Watson

Journal of the Arkansas Academy of Science

Winter, spring, summer, and autumn samples were collected with a 15.24x15.24-cm Ekman grab from five stations on Dardanelle Reservoir, Pope County, Arkansas during the 24-year period from 1970-1993. Twenty-three taxa representing the eight phyla, Cnidaria, Nematoda, Nematomorpha, Entoprocta, Ectoprocta, Mollusca, Annelida, and Arthropoda, were collected. Numerically, oligochaetes comprised 36%, whereas chironomid larvae, Chaoborus larvae, and Hexagenia naiads mad up 29.7, 17, and 12%, respectively, of the samples. Asiatic clams, fingernail clams, amphipods, and Urnatella were collected frequently during the last 10 years but were not abundant. Other taxa were taken infrequently but consistently during the study period. Densities of all …


Pre-Spawning Migration Of Channel Catfish Into Three Warmwater Tributaries-Effects Of A Cold Tailwater, Gary L. Siegwarth, James E. Johnson Jan 1994

Pre-Spawning Migration Of Channel Catfish Into Three Warmwater Tributaries-Effects Of A Cold Tailwater, Gary L. Siegwarth, James E. Johnson

Journal of the Arkansas Academy of Science

Spring migrations of channel catfish (Ictalurus punctatus) into the Kings, Mulberry and Buffalo rivers, Arkansas, were compared to determine adult catfish migration into a warm water river that flows into a cold tailwater. The Buffalo River flows into a cold tailwater reach of the White River and supports a sparse channel catfish population compared to similar rivers in the region that do not flow into cold tailwaters. This is an important factor because many recent studies have demonstrated that channel catfish make pre-spawning migrations into tributary streams and may contribute significantly to tributary populations. To assess channel catfish migration, hoop …