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Genetic Diversity of New World Crocodilians

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Conservation Genetics of New World Crocodilians

Abstract

Genetic diversity is one of the most important attributes of any population; it is defined as the variation in the amount of genetic information within and among individuals of a population, species, assemblage, or community. It can be expressed as differences between individuals at different levels, such as morphological features, structure and chromosomal number, and polymorphisms of sequences of DNA or proteins. An assessment of genetic diversity is fundamental to population genetic studies and has extremely important applications in conservation biology and the development of management and sustainable use plans. This chapter discusses the main indices that allow analyzing genetic variability and population structure of New World crocodilian populations, the methodologies used to estimate these indices, and the principal population genetic data available for these species. The effective population size concept is also discussed, a fundamental parameter in the study of principally those crocodile populations that have been drastically reduced in size and/or suffered fragmentation of their environments.

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Authors and Affiliations

  1. Laboratorio de Genética, Departamento de Ciencias Naturales, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina

    Patricia Susana Amavet

  2. Laboratório de Genética de Populações e Evolução Molecular (GENEV), Instituto de Biologia, Universidade Federal da Bahia, Salvador, Bahia, Brasil

    Rodrigo Barban Zucoloto

  3. Laboratório de Evolução e Genética Animal - LEGAL, Instituto de Ciências Biológicas, Departamento de Genética, Universidade Federal do Amazonas, Manaus, Amazonas, Brasil

    Tomas Hrbek

  4. Laboratório de Evolução e Genética Animal, Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brasil

    Izeni Pires Farias

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  1. Patricia Susana Amavet
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  2. Rodrigo Barban Zucoloto
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  3. Tomas Hrbek
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  4. Izeni Pires Farias
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Corresponding author

Correspondence to Patricia Susana Amavet .

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Editors and Affiliations

  1. Laboratório de Genética de Populações e Evolução Molecular (GENEV), Instituto de Biologia, Universidade Federal da Bahia, Salvador, Bahia, Brazil

    Rodrigo Barban Zucoloto

  2. Laboratorio de Genética, Departamento de Ciencias Naturales, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina

    Patricia Susana Amavet

  3. CENA/LE²Ave, Universidade de São Paulo, Piracicaba, São Paulo, Brazil

    Luciano Martins Verdade

  4. Laboratório de Evolução e Genética Animal, Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil

    Izeni Pires Farias

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Amavet, P.S., Zucoloto, R.B., Hrbek, T., Farias, I.P. (2021). Genetic Diversity of New World Crocodilians. In: Zucoloto, R.B., Amavet, P.S., Verdade, L.M., Farias, I.P. (eds) Conservation Genetics of New World Crocodilians. Springer, Cham. https://doi.org/10.1007/978-3-030-56383-7_5

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