Paul L. Leberg
The application of theory from ecology, evolution, and population genetics to questions in wildlife management and conservation biology is of special interest to me. My work employs experimental approaches to gain understanding of interactions between genetic diversity, environmental variation, and population viability under natural conditions. Students in my laboratory are evaluating how well theory and laboratory observations involving founder effects, bottlenecks, inbreeding, and outbreeding predict viability of experimental populations of fish and small mammals. We are also assessing how genetic diversity on population level processes is affected by fluctuating and stressful environments. Environmental stresses include parasitism, competition, predation, heavy metals, temperature, and salinity. In addition to experimental studies, computer modeling is used to ascertain relationships between genetic diversity, environmental variation, population viability, and individual fitness. This research adds to our understanding of how genetic variation influences a population's ability to survive in the face of biotic and abiotic threats and provides insight into the management of vertebrates in small populations and the restoration of species to areas from which they have been extirpated.
My research interests also include the effects of human activities on the genetics, evolution and ecology of vertebrates. Genetic diversity is assessed in wildlife species, whose population structures have been altered by humans, and in experimentally manipulated populations maintained in simulated natural conditions. As part of this work, I am evaluating the relative power of different biochemical and molecular techniques to assess variation in genetic diversity within and among populations. Additionally, we are evaluating the utility of molecular markers, such as microsatellite loci, as tags for the study of individual movement and estimation of population size. My students and I are also examining the effects of habitat change, such as wetland loss and forest alteration, on several species of birds and bats.
Please visit my lab page!
Following are references to some recent publications from my laboratory:
- Green, M.C. and P.L. Leberg. 2005. Flock formation and the role of plumage colouration in Ardeidae. Canadian Journal of Zoology. 83:683-693.
- Oyler, S. and P. L. Leberg. 2005. Conservation genetics in wildlife biology in Research and Management Techniques for Wildlife Investigations and Management, 6th Edition (C. Braun, ed.). Wildlife Society, Washington, DC. Pages 632-657.
- Elderkin, C. L., E.J. Perkins, P. L. Leberg, P.L. Klerks, and R.F. Lance. 2004. Amplified fragment length polymorphism (AFLP) analysis of the genetic structure of the zebra mussel, Dreissena polymorpha, in the Mississippi River. Freshwater Biology. 49:1487-1494.
- Neigel, J. E. and P. L. Leberg. 2004. A prototype object database for mitochondrial DNA variation. Journal of Heredity. 95:85-88.
- Waits, J. L., M. L. Avery, M. E. Tobin, and P. L. Leberg. 2003. Low mitochondrial DNA variation in Double-crested Cormorants in eastern North America. Waterbirds. 26:196-200.
- Leberg, P. L. 2002. Estimating allelic diversity: Effects of sample size and bottlenecks. Molecular Ecology 11:2445-2449.
- Ji, W. and P. L. Leberg. 2002. A GIS-based approach for assessing the regional conservation status of genetic diversity: An example from the southern 1Gull-billed terns on nest site choice of Black Skimmers. Condor 104:174-177.
- Lance, R. F., B. C. Hardcastle, and P. L. Leberg. 2001. Roost site selection by Rafinesque’s big-eared bat (Corynorhinus rafinesquii). Journal of Mammalogy 82:166-172
- Spencer, C. S., J. Neigel, and P. L. Leberg. 2000. Evaluation of the Usefulness of microsatellite DNA for detecting demographic bottlenecks. Molecular Ecology 9:1517-1528
- Waits, J. and P. L. Leberg. 2000. Evaluation of the utility of molecular genetic tagging for the estimation of population size. Animal Conservation 3:191-199.
- Lance, R. F., M.L. Kennedy, and P. L. Leberg. 2000. Classification bias in discriminant function analyses used to evaluate putatively different taxa. Journal of Mammalogy 81:245-249.
- Leberg, P. L. and J. Neigel. 1999. Status of population genetics data in the literature: assessment of the need for a community database. Evolution 53:1961-1965.
- Leberg, P.L. 1999. Using genetic markers to assess the success of translocation programs. North American Wildl. and Nat. Resources Conf. 64:174-190
- Mallach, T. and P. Leberg. 1999. Influence of substrate on reused dredge islands by nesting terns and skimmers. Journal of Wildlife Management 63:137-146.
- Leberg, P. L. and D. L. Ellsworth. 1999. Reevaluation of the genetic consequences of translocations on deer populations. Journal of Wildlife Management 63:327-334.
- Leberg, P.L. 1998. Influence of complex sex determination on demographic stochasticity and population viability. Conservation Biology 12:456-459.
- Pius, S.M. and P.L. Leberg. 1998. The Protector species hypothesis: Do black skimmers find refuge from predators in gull-billed tern colonies? Ethology 104:273-284.
- Klerks, P.L., P.L. Leberg, R.F. Lance, D.J. McMillin, and J.C. Means. 1997. Lack of development of pollutant-resistance and genetic differentiation in darter gobies (Gobionellus boleosoma) inhabiting a produced-water discharge site. Marine Environmental Research 44:377-394.
- Pius, S.M. and P.L. Leberg. 1997. Aggression and nest spacing in single and mixed species groups of seabirds. Oecologica 111:144-150.
- Leberg, P.L., T.J. Spengler, and W.T. Barrow. 1996. Physiological condition of passerines following trans-gulf migratory flights. Oecologica 106: 1-7.
- Richards, C. and P.L. Leberg. 1996. Evaluation of the effects of bottlenecks on changes in allele frequencies. Conservation Biology 10: 832-839.
- Torres, A.R. and P.L. Leberg. 1996. Effects of Hurricane Andrew on cavity nesting birds in the Atchafalaya Basin. Condor 98: 483-490.
Feel free to contact me at this address:
Paul L. Leberg, Department of
Biology, PO Box 42451, Lafayette, LA 70504 or
pll6743@louisiana.edu Telephone: (337) 482-6637