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Learning PlanSessionsContributors
 Preserving Biodiversity through Genetics
 Richard Frankham, Jonathan Ballou and David Briscoe
Seminar Introduction
The biological diversity of the planet is being rapidly depleted due to direct and indirect consequences of human activity. To reverse this trend we rapidly need to find some way of quantifying the damage and maximising the genetic variety of the world's populations. In this seminar, Richard Frankham, Jonathan Ballou and David Briscoe look at how animal and plant populations have decreased, causing a loss of genetic diversity and a reduction in their ability to adapt to changes in the environment. Using the concept of conservation genetics--the application of genetics to preserve species as dynamic entities capable of coping with environmental change--the seminar discusses ways to minimise population extinction.

This seminar is based on an extract from the book Introduction to Conservation Genetics which offers a further depth of understanding into how we can use conservation genetics to preserve the world's biodiversity. It shows why genetic theory and information are crucial in the management of endangered species, and offers hope for the conservation of the world's biodiversity.




Learning Objectives
  • Understand that loss of genetic diversity reduces species' ability to adapt to changes in the environment.
  • Describe expected extinction rates for animals and plants by drawing on recorded extinctions and predictions of human population growth.
  • List the primary causes of extinction.
  • Outline how genetics can act as an aid in conservation through the management of small populations and the understanding of species biology.



  • Sessions

    Session 1 Conserving Biodiversity
    Session 2 Endangered and Extinct Species
    Session 3 Genetic Factors in Conservation Biology
    Contributors


    Credits
    This seminar is extracted from chapter one of Introduction to Conservation Genetics, published by Cambridge University Press, 2002. Copyright R. Frankham, D. A. Briscoe, Smithsonian Institution, 2002.

    book The biological diversity of our planet is being depleted due to the direct and indirect consequences of human activity. As the size of animal and plant populations decrease, loss of genetic diversity reduces their ability to adapt to changes in the environment, with inbreeding depression an inevitable consequence for many species. This textbook provides a clear and comprehensive introduction to the importance of genetic studies in conservation. The text is presented in an easy-to-follow format, with main points and terms clearly highlighted. Each chapter concludes with a concise summary, which, together with worked examples and problems and answers, emphasise the key principles covered. Text boxes containing interesting case studies and other additional information enrich the content throughout, and over 100 beautiful pen and ink portraits of endangered species help bring the material to life.

    Introduction to Conservation Genetics
    Richard Frankham, Jonathan D. Ballou, David A. Briscoe
    Paperback (2002)




    Technical Requirements
    To appreciate this seminar experience, it is critical that you have the appropriate software, plug-ins, and network connections. Please take the time to download the latest versions of the plug-ins mentioned below if you do not already have them.

    Browser: Netscape versions 4.x up to 4.76, or Internet Explorer versions 4.x or later. Your browser must be JavaScript-enabled and must be set to accept cookies.
    Network Connection: The recommended minimum connection is 56Kbps with a throughput of 34Kbps or more. A faster connection is encouraged to take better advantage of the media elements in the seminar.