Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 5 of 5

Full-Text Articles in Entire DC Network

Earthworms Of Arkansas And Contributions Of Earthworm Evolutionary Origin And Ecological Group To Nitrogen Cycling In A Model Soil And Tall Fescue System, Peter John Tomlinson Dec 2011

Earthworms Of Arkansas And Contributions Of Earthworm Evolutionary Origin And Ecological Group To Nitrogen Cycling In A Model Soil And Tall Fescue System, Peter John Tomlinson

Graduate Theses and Dissertations

Evolutionary origin and ecological niche may impact how earthworm species affect N cycling. Tall fescue (Lolium arundinaceum (Schreb) S. J. Darbysh) infection with the toxic endophyte Neotyphodium coenophialum Glenn, Bacon & Hanlin (E+) may influence earthworm communities in soil compared to non-toxic endophyte (NE+) infected tall fescue. Conversely, different earthworms may contribute different amounts of N to E+ vs. NE+ tall fescue. A field survey was conducted from January 2007 to January 2008 to determine the impact of E+ and NE+ tall fescue, planting date, and seasonal variables, e.g. soil temperature and moisture, on earthworm species, abundances, and population …


Summaries Of Arkansas Cotton Research 2010, Derrick M. Oosterhuis May 2011

Summaries Of Arkansas Cotton Research 2010, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.


Occurrence Of Blarina Brevicauda In Arkansas And Notes On The Distribution Of Blarina Carolinensis And Cryptotis Parva, R. S. Pfau, D. Blake Sasse, M. B. Connior, I. F. Guenther Jan 2011

Occurrence Of Blarina Brevicauda In Arkansas And Notes On The Distribution Of Blarina Carolinensis And Cryptotis Parva, R. S. Pfau, D. Blake Sasse, M. B. Connior, I. F. Guenther

Journal of the Arkansas Academy of Science

We provide an update on the species and distribution of shrews occurring in Arkansas. Shrews were collected within Arkansas Game and Fish Commission Wildlife Management Areas and along the Buffalo National River. We also searched mammal collections at several institutional museums to provide additional locality records for Cryptotis parva. Specimens of Blarina were identified to species by DNA sequencing of the mitochondrial cytochrome b gene. Previously, Blarina hylophaga was believed to occur in the northwest corner of Arkansas and B. carolinensis throughout the rest of the state. However, our genetic analysis revealed that it is B. brevicauda that occupies the …


New Records And Notes On The Natural History Of Vertebrates From Arkansas, M. B. Connior, R. Tumlison, H. W. Robison Jan 2011

New Records And Notes On The Natural History Of Vertebrates From Arkansas, M. B. Connior, R. Tumlison, H. W. Robison

Journal of the Arkansas Academy of Science

No abstract provided.


Seasonal Activity, Population Characteristics, And Age Estimation In The Aquatic Salamander, Siren Intermedia Nettingi (Goin), J. A. Sawyer, S. E. Trauth Jan 2011

Seasonal Activity, Population Characteristics, And Age Estimation In The Aquatic Salamander, Siren Intermedia Nettingi (Goin), J. A. Sawyer, S. E. Trauth

Journal of the Arkansas Academy of Science

We conducted a study of the Western Lesser Siren (Siren intermedia nettinigi), at a locality termed the Airport Road site in Jonesboro (Craighead County, AR) from November 2004 until March 2007. This site consisted of a network of roadside ditches in cultivated lawns in an industrial park. Even though sirens are known to occur frequently in ditches, most studies of the genus Siren have taken place in natural wetlands. We compiled mark-recapture data at the Airport Road site for each season to determine if the seasonal activity pattern for sirens in northeast Arkansas varied from activity data previously published from …