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Association Of Ring-Necked Pheasants And Conservation Reserve Program-Grasslands During The Brood-Rearing Season In Eastern South Dakota, Joshua J. White
Association Of Ring-Necked Pheasants And Conservation Reserve Program-Grasslands During The Brood-Rearing Season In Eastern South Dakota, Joshua J. White
Electronic Theses and Dissertations
Grassland established through the Conservation Reserve Program (CRP) has provided critical habitat for many wildlife species. Recent declines in CRP-grassland acreage attributed to changes in federal enrollment policy, increased biofuels production, and commodity prices may have negative consequences on wildlife populations. Conservation Reserve Program habitats have increased availability of quality nesting and over-winter cover for pheasants (Phasianus colchicus) in regions where large-scale conversions of native grasslands to cropland have occurred. The purpose of this study was to quantify the effect of CRP-grasslands on pheasants across a large geographic region. Primary objectives of the study were to determine presence/absence of pheasants …
Antimicrobial Activity, Cytotoxicity And Phytochemical Analyses Of Rhus Aromatica, Rhus Glabra And Sanguinaria Canadensis Native To South Dakota, Gitanjali Nandakafle
Antimicrobial Activity, Cytotoxicity And Phytochemical Analyses Of Rhus Aromatica, Rhus Glabra And Sanguinaria Canadensis Native To South Dakota, Gitanjali Nandakafle
Electronic Theses and Dissertations
A total of twenty five South Dakota native medicinal plants were screened against enterotoxigenic Escherichia coli using a disk diffusion assay. Out of these 25 plants, three plants Rhus aromatica, Rhus glabra and Sanguinaria canadensis demonstrated the highest bacterial inhibition. The minimum inhibitory concentrations (MIC) of these plant extracts were determined using a bacterial enumeration assay. Alamar Blue in vitro cytotoxicity test showed that all extracts have some toxic effect to porcine intestinal epithelial cell lines. Phytochemical analysis of these plant extracts indicated the presence high concentration of flavonoids and condensed tannins in R. aromatica and that R. glabra contained …