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Articles 1 - 12 of 12
Full-Text Articles in Life Sciences
Type Specimens Of Birds In The Museum Of Natural Science, Louisiana State University, Steven W. Cardiff, J. V. Remsen, Jr.
Type Specimens Of Birds In The Museum Of Natural Science, Louisiana State University, Steven W. Cardiff, J. V. Remsen, Jr.
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
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
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.
Effect Of Sewage Effluent On Bird Abundance And Species Composition In A Northern Minnesota Wetland, Joann M. Hanowski, Gerald J. Niemi
Effect Of Sewage Effluent On Bird Abundance And Species Composition In A Northern Minnesota Wetland, Joann M. Hanowski, Gerald J. Niemi
Journal of the Minnesota Academy of Science
Bird abundance was monitored before (1985 and 1987) and after (1989) sewage wastewater effluent was added to a northern Minnesota wetland. Community parameters (i.e., number of individuals and species richness) varied annually, but, overall bird communities in 1985 and 1989 were more similar to each other than they were to the 1987 community. Relative abundance of 35 bird species was unchanged between years and species abundance ranks were not different between years. Distribution of numbers of individuals (relative percent) within nesting and foraging guilds (species that have similar nesting or feeding requirements) was similar among years. Numbers of species that …
Mink Predation On Juvenile American Coots, David J. Delehanty, W. Daniel Svedarsky
Mink Predation On Juvenile American Coots, David J. Delehanty, W. Daniel Svedarsky
Journal of the Minnesota Academy of Science
American Coot (Fulica americana) nest success, defined as at least one chick hatching, frequently exceeds 90% (Fredrickson et al. 1977), indicating success in avoiding nest predation during incubation. However, predation of juvenile coots may be an important factor in coot reproduction. Many anecdotal reports of predation on coots by mink (Mustela vison) exist (for example, Bailey 1926, Bennett 1938, Low 1945, Errington 1967, Arnold and Fritzell 1989). Studies of waterfowl predation (Sowls 1955, Sargeant et al. 1973) and diets of predators (Eberhardt 1973, Arnold and Fritzell 1987) report significant predation of coots by mink. Eberhardt and Sargeant (1977) estimated 52% …
Additions And Confirmations To The Algal Flora Of Itasca State Park Ii. Diatoms From Chambers Creek, Mark B. Edlund
Additions And Confirmations To The Algal Flora Of Itasca State Park Ii. Diatoms From Chambers Creek, Mark B. Edlund
Journal of the Minnesota Academy of Science
A survey of the summer diatom flora of Chambers Creek, Clearwater County, Minnesota, is presented, continuing an inventory of the algal flora from Itasca State Park. Chambers Creek is a short, second-order, hardwater stream with great habitat diversity and a rich algal flora. One hundred and twenty-six diatom taxa representing 45 genera are reported, with many new reports from the park. Recent taxonomic revisions have been incorporated into this study and seven new nomenclatural combinations proposed.
Spatial Distributions Of Three Species Of Desmognathus In A North Carolina Stream, James J. English, Alvan A. Karlin, Laurie D. Lacer
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
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
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
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
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
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
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 …