Don't put all your eggs in one basket – Lessons learned from the largest-scale and longest-term wildlife conservation program in the Amazon Basin

C. C. Eisemberg, R. C. Vogt, R. A.M. Balestra, S. J. Reynolds, K. A. Christian

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    The Brazilian Government established the Amazon Turtle Project (Projeto Quelônios da Amazônia – PQA) in 1975 to monitor and protect the main nesting sites of Amazon River turtles. The PQA has become the largest-scale and longest-term wildlife conservation initiative in the Brazilian Amazon. We evaluated the outcomes of the PQA across 11 protected localities over 30 years (1977–2008). Inside the protected localities, one population of Podocnemis expansa has declined and four have seen an increase in numbers. The PQA conservation efforts for P. unifilis were not as successful as those of Podocnemis expansa, but were sufficient to stabilize or increase populations. These results suggest that there is a minimum effort necessary for positive conservation outcomes, which was not achieved for Podocnemis sextuberculata. Given the lack of correlation between initial nesting numbers and positive population trends, the current level of success in a given locality cannot be used as a tool to prioritize future protection efforts. We recommend that the PQA should maintain or increase its coverage due to the high levels of local unpredictability. If current harvest trends are maintained, it is likely the only surviving populations of P. expansa will be within protected areas. Considering the scope of the PQA and the period that it has been operational, it is surprising how little recognition it has received; the lack of national and international awareness of its achievements may be one of the main reasons behind the lack of support from the Brazilian Government.

    Original languageEnglish
    Article number108182
    Pages (from-to)1-8
    Number of pages8
    JournalBiological Conservation
    Volume238
    DOIs
    Publication statusPublished - Oct 2019

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    conservation programs
    wildlife management
    nature conservation
    turtle
    basins
    turtles
    basin
    protected area
    Amazon River
    nesting sites
    population growth
    conservation areas
    river
    Podocnemis
    programme
    project
    population trend
    trend
    harvest

    Cite this

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    title = "Don't put all your eggs in one basket – Lessons learned from the largest-scale and longest-term wildlife conservation program in the Amazon Basin",
    abstract = "The Brazilian Government established the Amazon Turtle Project (Projeto Quel{\^o}nios da Amaz{\^o}nia – PQA) in 1975 to monitor and protect the main nesting sites of Amazon River turtles. The PQA has become the largest-scale and longest-term wildlife conservation initiative in the Brazilian Amazon. We evaluated the outcomes of the PQA across 11 protected localities over 30 years (1977–2008). Inside the protected localities, one population of Podocnemis expansa has declined and four have seen an increase in numbers. The PQA conservation efforts for P. unifilis were not as successful as those of Podocnemis expansa, but were sufficient to stabilize or increase populations. These results suggest that there is a minimum effort necessary for positive conservation outcomes, which was not achieved for Podocnemis sextuberculata. Given the lack of correlation between initial nesting numbers and positive population trends, the current level of success in a given locality cannot be used as a tool to prioritize future protection efforts. We recommend that the PQA should maintain or increase its coverage due to the high levels of local unpredictability. If current harvest trends are maintained, it is likely the only surviving populations of P. expansa will be within protected areas. Considering the scope of the PQA and the period that it has been operational, it is surprising how little recognition it has received; the lack of national and international awareness of its achievements may be one of the main reasons behind the lack of support from the Brazilian Government.",
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    Don't put all your eggs in one basket – Lessons learned from the largest-scale and longest-term wildlife conservation program in the Amazon Basin. / Eisemberg, C. C.; Vogt, R. C.; Balestra, R. A.M.; Reynolds, S. J.; Christian, K. A.

    In: Biological Conservation, Vol. 238, 108182, 10.2019, p. 1-8.

    Research output: Contribution to journalArticleResearchpeer-review

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    AU - Vogt, R. C.

    AU - Balestra, R. A.M.

    AU - Reynolds, S. J.

    AU - Christian, K. A.

    PY - 2019/10

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    KW - Endangered species

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