@article{stuart_beamer_farrington_beane_chek_pusser_som_stephan_sever_braswell_2020, title={A New Two-lined Salamander (Eurycea bislineata Complex) from the Sandhills of North Carolina}, volume={76}, ISSN={["1938-5099"]}, DOI={10.1655/0018-0831-76.4.423}, abstractNote={Abstract The Eurycea bislineata complex (“two-lined salamanders”) of eastern North America contains six described species, of which three have very similar morphologies and relatively broad geographic distributions, and three have more divergent morphologies with narrow geographic distributions. Recent molecular phylogenetic analyses found that four of the six species in the complex contain deep genetic structure, and that two of the species (E. cirrigera and E. wilderae) are paraphyletic in mitochondrial and nuclear DNA, inferring that current taxonomy does not reflect actual species boundaries in the complex. The member of this complex in the Sandhills physiographic region of south-central North Carolina, USA, is notable for its distinctive coloration and ecology, and a study on allozymic variation published over 30 years ago demonstrated that it is genetically distinct but clustered within the paraphyletic E. cirrigera. This study investigates the taxonomic status of the Sandhills population using morphology, mitochondrial DNA, and a 21-locus nuclear DNA data set to test if the Sandhills taxon represents a local ecomorph that is conspecific with adjacent populations of E. cirrigera, or if it represents a divergent evolutionary lineage that warrants taxonomic recognition. Mitochondrial and nuclear DNA revealed that the Sandhills taxon is genetically distinct and phylogenetically unrelated to adjacent populations of E. cirrigera. Principal components analysis of 316 adult specimens of the Sandhills taxon and the three morphologically similar species in the complex found considerable overlap among these taxa, but pairwise comparisons of heavily loading morphological characters showed that the Sandhills taxon usually has a shorter body, shorter tail, and narrower head. Based on these corroborated lines of evidence, the hypothesis that the Sandhills taxon represents only a local ecomorph is rejected and it is described as a new species. Clarification of the extent of its geographic range (including its possible presence in South Carolina), differentiation of larvae from other members of the complex, and verification of hypothesized narrow zones of hybridization with E. cirrigera at the peripheries of its geographic range are needed. The description of the Sandhills taxon brings the number of endemic salamander species in North Carolina to seven. Integrative taxonomic revisions of the E. bislineata complex, particularly E. cirrigera and E. wilderae, are needed to estimate species diversity and distributions of these salamanders more accurately.}, number={4}, journal={HERPETOLOGICA}, author={Stuart, Bryan L. and Beamer, David A. and Farrington, Heather L. and Beane, Jeffrey C. and Chek, Danielle L. and Pusser, L. Todd and Som, Hannah E. and Stephan, David L. and Sever, David M. and Braswell, Alvin L.}, year={2020}, month={Dec}, pages={423–444} }
 @article{levine_apperson_howard_washburn_braswell_1997, title={Lizards as Hosts for Immature Ixodes scapularis (Acari: Ixodidae) in North Carolina}, volume={34}, ISSN={1938-2928 0022-2585}, url={http://dx.doi.org/10.1093/jmedent/34.6.594}, DOI={10.1093/jmedent/34.6.594}, abstractNote={Previously archived museum specimens of lizards collected throughout North Carolina were examined for Ixodes scapularis (Say). Lizards (n = 1,349) collected in 80 of North Carolina's 100 counties were examined. Lizards with ticks were collected in 23 (29%) of the 80 counties from which lizards were examined. I. scapularis was detected on 8.7% (n = 117) of the lizards and was the sole species of tick obtained from lizards. Immature ticks were most frequently found on the southeastern five-lined skink, Eumeces inexpectatus, and the eastern glass lizard, Ophisaurus ventralis. Larvae were most frequently found on the six-lined racerunner, Cnemidophorus sexlineatus. One C. sexlineatus harbored 177 larvae and 2 nymphs. Nymphs were most frequently observed on E. inexpectatus. The majority of counties (chi 2, P < 0.01) where ticks were found on lizards were in the Coastal Plain.}, number={6}, journal={Journal of Medical Entomology}, publisher={Oxford University Press (OUP)}, author={Levine, Jay F. and Apperson, Charles S. and Howard, Peter and Washburn, Michelle and Braswell, Alvin L.}, year={1997}, month={Nov}, pages={594–598} }
 @article{brown_kononchuk_radzimski_rozgonyi_gonzalez_1997, title={The effect of oxygen on secondary defect formation in MeV self-implanted silicon}, volume={127}, ISSN={["0168-583X"]}, DOI={10.1016/S0168-583X(96)00848-8}, abstractNote={The effects of ion fluence and oxygen concentration on secondary defect formation in MeV self-implanted silicon has been studied for Czochralski (Cz) and float zone (FZ) wafers by means of transmission electron microscopy (TEM) and optical microscopy with bevel polishing/chemical etching. We found that the density, distribution and number of extended defects is strongly dependent upon the oxygen concentration. The dislocation density was found to be up to one order of magnitude lower in FZ wafers. At high ion fluences (∼ 1015 cm−2), secondary defects form in a well-defined band near the ion projected range, Rp. At lower ion fluences, dislocations extend from the defect band to increasingly large depths. For ion fluences approaching the threshold for secondary defect formation (∼ 1014 cm−2), defects are observed from the surface to depths of ⋍ 10 μm, i.e., five times Rp.}, journal={NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS}, author={Brown, RA and Kononchuk, O and Radzimski, Z and Rozgonyi, GA and Gonzalez, F}, year={1997}, month={May}, pages={55–58} }
 @article{apperson_levine_evans_braswell_heller_1993, title={Relative utilization of reptiles and rodents as hosts by immature Ixodes scapularis (Acari: Ixodidae) in the coastal plain of North Carolina, USA}, volume={17}, number={10}, journal={Experimental & Applied Acarology}, author={Apperson, C. S. and Levine, J. F. and Evans, T. L. and Braswell, A. and Heller, J.}, year={1993}, pages={719–731} }