NCEAS Project 2057

Theoretical and empirical approaches to the study of gene flow in fragmented and managed populations

  • Victoria L. Sork

ActivityDatesFurther Information
Postdoctoral Fellow1st August 1997—31st July 1998Participant List  
Workshop5th—9th January 1998Participant List  
Workshop7th—13th March 1998Participant List  
Workshop19th—23rd April 1998Participant List  
Workshop4th—9th January 1999Participant List  
Working Group1st—7th August 1999Participant List  
Working Group4th—8th January 2000Participant List  
Working Group2nd—6th January 2001Participant List  

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Abstract
Research in conservation biology and ecosystem management has been extended to an analysis of landscape effects on gene flow within and among plant populations. Theoretical models of gene flow stem from concepts developed by Sewall Wright that are based either on continuous populations using isolation by distance approach or on populations as islands that become differentiation through mutation and genetic drift. These models assume a null environment and populations of equal size. Recently, theoretical developments in metapopulation analysis and landscape ecology as well as new empirical approaches in conservation genetics provide alternative and sometimes complementary approaches to the study of gene flow. The goals of the workshop would be: (1) to review the various theoretical and empirical approaches that either examine gene flow directly or can be modified to examine gene flow; (2) to review various software programs for these models; and (3) to compare the outcomes of these models using existing datasets. The eventual goal is to evaluate the most appropriate models and develop a new synthetic approach to the study of gene flow that is appropriate to fragmented and managed forests.

TypeProducts of NCEAS Research
Presentations Apsit, Victoria; Dyer, Rodney; Sork, Victoria L. 2000. Variation in mating patterns of an insect-pollinated tree species across a Missouri Ozark landscape. Annual meetings of the Society for the Study of Evolution, June 2000. Bloomington, IN.
Journal Article Austerlitz, Frederic; Dick, Christopher W.; Dutech, Cyril; Klein, Estienne K.; Oddou-Muratorio, Sylvie; Smouse, Peter; Sork, Victoria L. 2004. Using genetic markers to estimate the pollen dispersal curve. Molecular Ecology. Vol: 13. Pages 937-954.
Presentations Dyer, Rodney; Sork, Victoria L. 2000. The effects of autocorrelated adaptive patterns among adults on pollen pool differentiation. Population Genetics in Managed Ecosystems, October 2000. French Guyana.
Journal Article Dyer, Rodney; Westfall, Robert; Smouse, Peter. 2004. Two-generation analysis of pollen flow across a landscape V: A stepwise approach for extracting factors contributing to pollen structure. Heredity. Vol: 92. Pages 204-211.
Presentations Gram, Wendy K.; Sork, Victoria L. 1998. Missouri Ozark Forest Ecosystem Project (MOFEP): A collaborative experiment examining impact of forest management on ecosystem integrity. Ecological Society of America Annual Meeting. Baltimore, MD.
Presentations Gram, Wendy K.; Faaborg, J.; Reynard, K.; Clawson, R.; Seon, E.; Scroggins, C. 1998. Territory densities and habitat correlates of forest interior birds in the Missouri Ozark Forest Ecosystem Project (MOFEP). American Ornithological Union Meeting. St. Louis, MO.
Presentations Gram, Wendy K.; Marquis, R.; Renken, R.; Fantz, D.; Clawson, R.; Faaborg, J.; Sork, Victoria L. 1999. Effects of forest management treatments on animal communities in Missouri Ozark forests. Fifth World Congress. International Association for Landscape Ecology. Snowmass Village, CO.
Journal Article Gram, Wendy K.; Borer, Elizabeth T.; Cottingham, Kathryn L.; Seabloom, Eric; Boucher, V.; Goldwasser, Lloyd; Micheli, Fiorenza; Kendall, Bruce E.; Burton, Rebecca S. 2004. Distribution of plants in a California serpentine grassland: Are rocky hummocks spatial refuges for native species?. Plant Ecology. Vol: 172. Pages 159-171.
Journal Article Seabloom, Eric; Borer, Elizabeth T.; Boucher, V.; Burton, Rebecca S.; Cottingham, Kathryn L.; Goldwasser, Lloyd; Gram, Wendy K.; Kendall, Bruce E.; Micheli, Fiorenza. 2003. Competition, seed limitation, disturbance, and reestablishment of California native annual forbs. Ecological Applications. Vol: 13(3). Pages 575-592.
Report or White Paper Smouse, Peter; Peakall, R. 1998. Micro-spatial autocorrelation analysis for multiple-locus, multi-allele genetic data. Edited by Sork, V.L. Theoretical and Empirical Approaches to the Study of Gene Flow in Fragmented, Managed, and Continuous Populations. (Online version)
Report or White Paper Smouse, Peter. 1998. Thoughts on a genetic structure-like approach to pollen flow. Edited by Sork, V.L. Theoretical and Empirical Approaches to the Study of Gene Flow in Fragmented, Managed, and Continuous Populations. (Online version)
Report or White Paper Smouse, Peter; Alvarez-Buyalla, E. R. 1998. Use of parentage analysis in the assessment of gene flow. Edited by Sork, V.L. Theoretical and Empirical Approaches to the Study of Gene Flow in Fragmented, Managed, and Continuous Populations. (Online version)
Presentations Smouse, Peter. 1999. Two generation analysis of pollen flow across a landscape. Conservation Genetics Meeting.
Presentations Smouse, Peter. 1999. Two generation analysis of pollen flow across a landscape. International Botanical Congress. St. Louis, MO.
Presentations Smouse, Peter; Dyer, Rodney; Westfall, Robert; Sork, Victoria L. 1999. Two-generation analysis of pollen flow across a landscape: Heterogeneity of male gametes among females, 23 July 1999. University of British Columbia. Vancouver, B.C..
Journal Article Smouse, Peter; Dyer, Rodney; Westfall, Robert; Sork, Victoria L. 2001. Two-generation analysis of pollen flow across a landscape. I. Male gamete heterogeneity among females. Evolution. Vol: 55(2). Pages 260-271.
Journal Article Smouse, Peter; Sork, Victoria L. 2004. Measuring pollen flow in forest trees: An exposition of alternative approaches. Forest Ecology and Management. Vol: 197. Pages 21-38.
Report or White Paper Sork, Victoria L. 1998. Theoretical and empirical approaches to the study of gene flow in fragmented, managed, and continuous populations - Workshop Report. (Online version)
Presentations Sork, Victoria L.; Apsit, Victoria; Dyer, Rodney; Gram, Wendy K.; Koop, A. L.; Raveill, J.; Smouse, Peter; Westfall, Robert. 1999. Heterogeneity in mating patterns across an Ozark forest landscape. XVI International Botanical Congress, August 1999 . St. Louis. MO.
Journal Article Sork, Victoria L.; Nason, John; Campbell, Diane; Fernandez, Juan. 1999. Landscape approaches to historical and contemporary gene flow in plants. Trends in Ecology & Evolution. Vol: 14(6). Pages 219-224.
Presentations Sork, Victoria L. 1999. Pollen flow in fragmented tropical tree populations. Landscape Dynamics of Gene Flow and Plant Genetic Structure. International Botanical Congress. St. Louis, MO.
Presentations Sork, Victoria L.; Apsit, Victoria; Dyer, Rodney. 2000. Patterns of mating in an insect-pollinated tree species in the Missouri Ozark Forest System Project. Natural Areas Conference, October 2000. St. Louis, MO.
Presentations Sork, Victoria L.; Davis, Frank W.; Smouse, Peter; Dyer, Rodney; Fernandez, Juan. 2001. Pollen movement in declining population of California Valley Oak, Quercus lobata: Where have all the fathers gone?. Western Forest Genetics Meeting, July 2001. Davis, California.
Presentations Sork, Victoria L.; Smouse, Peter; Dyer, Rodney; Westfall, Robert. 2002. Contemporary pollen movement in natural and managed landscapes. Conference on Dynamics and Conservation of Genetic Diversity in Forest Ecosystems. Strasbourg, France.
Journal Article Sork, Victoria L.; Apsit, Victoria; Dyer, Rodney. 2002. Patterns of mating in an insect-pollinated tree species in the Missouri Ozark Forest Ecosystem Project. Natural Areas Journal. Pages 213-227.
Presentations Sork, Victoria L.; Bailey, K.; Dyer, Rodney. 2002. Pollen movement across landscapes. Annual Meeting of the American Society of Naturalists, July 2002. Banff, Alberta, Canada.
Presentations Sork, Victoria L. 2002. Topic: Landscape genetics. Symposium on Effective Population Size, May 2002. University of Maryland. College Park.
Presentations Sork, Victoria L.; Dutech, Cyril; Dyer, Rodney; Smouse, Peter; Westfall, Robert. 2003. Adult genetic structure and gene flow in tree populations. Annual Meeting, Society for the Study of Evolution. Chico, California.
Presentations Sork, Victoria L.; Grivet, D.; Smouse, Peter. 2004. A new approach to the study of seed dispersal: A temperate example for tropical systems. Symposium on Molecular Tools for Seed Dispersal. Annual Meeting of Association for Tropical and Conservation Biology. Miami, Florida.
Presentations Sork, Victoria L. 2004. Topic: Landscape genetics, April 2004. Department of Ecology and Evolution, University of California San Diego. San Diego, California.
Presentations Sork, Victoria L. 2004. Topic: Landscape genetics, October 2004. Department of Ecology and Evolutionary Biology, UC Santa Cruz. Santa Cruz, California.
Presentations Sork, Victoria L.; Smouse, Peter. 2005. Introduction to landscape genetics in tree populations. Symposium on Landscape Genetics, March 2005. Annual Meeting of International Association of Landscape Ecologists. Syracuse, New York.
Presentations Sork, Victoria L. 2005. Topic: Landscape genetics, April 2005. Department of Ecology and Evolution, SUNY Stony Brook.
Presentations Sork, Victoria L. 2005. Topic: Landscape genetics, April 2005. Department of Biology, Virginia Commonwealth University.
Presentations Sork, Victoria L. 2005. Topic: Landscape genetics in plants. International Botanical Congress. Vienna.
Presentations Sork, Victoria L. 2005. Topic: Landscape genetics in plants, March 2005. Landscape Ecologists.