Research Topics
| J W BickhamSummaryAffiliation: Texas A and M University Country: USA Publications
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Detail Information
Publications
Molecular phylogenetics, karyotypic diversity, and partition of the genus Myotis (Chiroptera: Vespertilionidae)John W Bickham
Department of Wildlife and Fisheries Sciences, Texas A and M University, 210 Nagle Hall, College Station, TX 77843 2258, USA
Mol Phylogenet Evol 33:333-8. 2004..Myotis macropus clusters within a clade that includes Southeast Asian species...- Effects of chemical contaminants on genetic diversity in natural populations: implications for biomonitoring and ecotoxicologyJ W Bickham
Department of Wildlife and Fisheries Sciences, Texas A and M University, 77843, College Station, TX 77843, USA
Mutat Res 463:33-51. 2000..This paper reviews the issues surrounding the genetic effects of pollution, summarizes the technical approaches that can be used to address these issues, and provides examples of studies that have addressed some of them... - Flow-cytometric analysis of the effects of triethylenemelamine on somatic and testicular tissues of the ratJ W Bickham
Department of Wildlife and Fisheries Sciences, Texas A and M University, College Station 77843
Cytometry 13:368-73. 1992.... - Chemical contaminants and their effects in fish and wildlife from the industrial zone of Sumgayit, Republic of AzerbaijanCarol D Swartz
Department of Veterinary Anatomy and Public Health, Texas A and M University, College Station, TX 77843, USA
Ecotoxicology 12:509-21. 2003..Exposure to contaminated sediments produced acute effects in Russian sturgeon, but genotoxic effects appear to be slight... - Biomarkers of exposure and effects of environmental contaminants on swallows nesting along the Rio Grande, Texas, USAMiguel A Mora
U S Geological Survey, 316 Nagle Hall, 2258 TAMU, Texas A and M University, College Station, Texas 77843 2258, USA
Environ Toxicol Chem 25:1574-84. 2006..These contaminants, particularly p,p'-DDE, may be among multiple factors that impact endocrine and hematopoietic function in Rio Grande swallows... - Patterns of genotoxicity and contaminant exposure: evidence of genomic instability in the marsh frogs (Rana ridibunda) of Sumgayit, AzerbaijanCole W Matson
Department of Wildlife and Fisheries Sciences, Texas A and M University, College Station, Texas 77843 2258, USA
Environ Toxicol Chem 24:2055-64. 2005..Flow cytometric data showed a significant correlation with sediment mercury concentrations, whereas population micronucleus frequencies were significantly correlated with high-molecular-weight PAHs... - Chromosomal damage in two species of aquatic turtles (Emys orbicularis and Mauremys caspica) inhabiting contaminated sites in AzerbaijanCole W Matson
Department of Wildlife and Fisheries Sciences, Texas A and M University, College Station, TX, 77843 2258, USA
Ecotoxicology 14:513-25. 2005..orbicularis. These data combine to show that the contaminated wetlands in Sumgayit and Neftchala are genotoxic and that three-ring PAHs are likely a significant influence on observed genotoxicity... - Cytochrome b sequences in black-crowned night-herons (Nycticorax nycticorax) from heronries exposed to genotoxic contaminantsC R Dahl
Department of Wildlife and Fisheries Sciences, Texas A and M University, College Station, TX 77843, USA
Ecotoxicology 10:291-6; discussion 296-7. 2001..With the exception of one population from Louisiana, pair-wise Phist estimates were very low, indicative of little population structure and potentially high rates of effective migration among populations... - Integration of genotoxicity and population genetic analyses in kangaroo rats (Dipodomys merriami) exposed to radionuclide contamination at the Nevada Test Site, USAC W Theodorakis
Texas A and M University, Department of Wildlife and Fisheries Sciences, College Station, Texas 77843, USA
Environ Toxicol Chem 20:317-26. 2001..We conclude the atomic blast sites are ecological sinks and that immigration masks the genotoxic effects of radiation on the resident populations... - Further flow cytometric studies of the effects of triethylenemelamine on somatic and testicular tissues of the ratJ W Bickham
Department of Wildlife and Fisheries Sciences, Texas A and M University, College Station 77843
Cytometry 15:222-9. 1994..Increased CVs, cell cycle alterations, and decreased CVs after recovery are all potentially useful biomarkers of effect for laboratory and field studies in environmental toxicology... - Editorial: the unknown environmental tragedy in Sumgayit, AzerbaijanJohn W Bickham
Department of Wildlife and Fisheries Sciences, Texas A and M University, College Station, TX 77843-2258, USA
Ecotoxicology 12:505-8. 2003 - Evidence of chromosomal damage in common eiders (Somateria mollissima) from the Baltic SeaCole W Matson
Department of Wildlife and Fisheries Sciences, Texas A and M University, College Station, TX 77843-2258, USA
Mar Pollut Bull 49:1066-71. 2004..However, eider populations from the Baltic Sea had significantly elevated estimates of genetic damage compared to populations from the Beaufort Sea... - Glacial refugia and the phylogeography of Steller's sea lion (Eumatopias jubatus) in the North PacificA Harlin-Cognato
Department of Biology, Texas A and M University, College Station, Texas 77843-2258, USA
J Evol Biol 19:955-69. 2006..Our data show evidence of four glacial refugia in which populations of Steller's sea lions diverged. These events occurred from approximately 60,000 to 180,000 years BP and thus preceded the last glacial maximum... 
Potential effects of environmental contaminants on P450 aromatase activity and DNA damage in swallows from the Rio Grande and Somerville, TexasM A Sitzlar
Department of Wildlife and Fisheries Sciences, Texas A and M University, 2258 TAMU, College Station, TX 77843 2258, USA
Ecotoxicology 18:15-21. 2009..Our study provides baseline information on brain and gonadal aromatase activity in swallows that could be useful in future studies...
Evolutionary toxicology: population-level effects of chronic contaminant exposure on the marsh frogs (Rana ridibunda) of AzerbaijanCole W Matson
Department of Wildlife and Fisheries Sciences, Texas A and M University, College Station, Texas, USA
Environ Health Perspect 114:547-52. 2006..This study provides an integrated method for assessing the cumulative population impacts of chronic contaminant exposure by studying both population genetic and evolutionary effects...- In situ biomonitoring of PAH-contaminated sediments using juvenile coho salmon (Oncorhynchus kisutch)Gary C Barbee
Department of Veterinary Integrative Biosciences, Texas A and M University, College Station, TX 77843 4458, USA
Ecotoxicol Environ Saf 71:454-64. 2008..3 total hepatic DNA adducts per 10(9) nucleotides. These results indicate that in situ biomonitoring using biomarkers and caged fish can be a sensitive indicator of genotoxic PAHs in sediments... - Contaminant exposure of barn swallows nesting on Bayou d'Inde, Calcasieu Estuary, Louisiana, USAThomas W Custer
U S Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA
Environ Monit Assess 121:543-60. 2006..Trace element concentrations in barn swallow eggs and nestling livers were at background levels and did not differ among the three sites. A biomarker of DNA damage did not differ among sites... - Trace element concentrations and bioindicator responses in tree swallows from northwestern MinnesotaChristine M Custer
U S Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA
Environ Monit Assess 118:247-66. 2006..Bioindicator measurements were within the normal ranges as well... - Exposure and effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin in tree swallows (Tachycineta bicolor) nesting along the Woonasquatucket River, Rhode Island, USAChristine M Custer
US Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin 54603, USA
Environ Toxicol Chem 24:93-109. 2005..Three bioindicators, half-peak coefficient of geometric variation, ethoxyresorufin-O-dealkylase activity, and brain asymmetry were assessed relative to TCDD contamination... - Molecular characterization of contaminant-indicative RAPD markersChristopher W Theodorakis
Texas Tech University, The Institute of Environmental and Human Health, Lubbock, TX, USA
Ecotoxicology 13:303-9. 2004..Although the identity of these bands is still unknown, the high degree of conservatism suggests that these loci might play an important role in molecular processes... - Water level management and contaminant exposure to tree swallows nesting on the Upper Mississippi RiverThomas W Custer
US Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA
Environ Monit Assess 133:335-45. 2007..Concentrations of inorganic and organochlorine contaminants in tree swallow eggs and nestlings were not at toxic levels. Hatching success did not differ among years and was comparable to the nationwide average...