Spatial and temporal patterns of harvesting of the Vulnerable pig-nosed turtle Carettochelys insculpta in the Kikori region, Papua New Guinea

Carla Camilo Eisemberg De Alvarenga, Mark Rose, Benedict Yaru, Arthur Georges

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    Management of wildlife use by communities living a partially traditional lifestyle is usually more successful when the interactions between those communities and the environment are well understood. We mapped the harvest areas for the Vulnerable pig-nosed turtle Carettochelys insculpta for six language-groups in the Kikori region of Papua New Guinea and compared harvest parameters between different areas and language-groups and, when possible, between 1980-1982 and 2007-2009. Spatially, the main influence on harvest method was a tribe's location relative to the turtle's distribution. No small juveniles (< 20 cm straight-line carapace length) were found outside the Kikori delta, which is probably the species' feeding grounds. In contrast, nesting females were captured only in upstream and coastal sandbank areas. Temporally there were distinct differences in harvesting parameters between tribes, which may be explained by differential employment opportunities. To halt the decline of pig-nosed turtles in the Kikori region we recommend the establishment of beach and feeding-ground protection initiatives, together with monitoring of the turtle population and harvest. Concomitantly, trips specifically targeted at harvesting the turtles, which account for 81% of the animals captured, need to be restricted. These initiatives should include all six language-groups and take into account their specific harvesting patterns.

    Original languageEnglish
    Pages (from-to)659-668
    Number of pages10
    JournalOryx
    Volume755
    Issue number4
    DOIs
    Publication statusPublished - 7 Oct 2015

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    Papua New Guinea
    turtle
    pig
    turtles
    feeding ground
    employment opportunities
    wildlife management
    beaches
    lifestyle
    sandbank
    monitoring
    beach
    Carettochelys insculpta
    animals
    harvest
    animal
    methodology
    parameter

    Cite this

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    title = "Spatial and temporal patterns of harvesting of the Vulnerable pig-nosed turtle Carettochelys insculpta in the Kikori region, Papua New Guinea",
    abstract = "Management of wildlife use by communities living a partially traditional lifestyle is usually more successful when the interactions between those communities and the environment are well understood. We mapped the harvest areas for the Vulnerable pig-nosed turtle Carettochelys insculpta for six language-groups in the Kikori region of Papua New Guinea and compared harvest parameters between different areas and language-groups and, when possible, between 1980-1982 and 2007-2009. Spatially, the main influence on harvest method was a tribe's location relative to the turtle's distribution. No small juveniles (< 20 cm straight-line carapace length) were found outside the Kikori delta, which is probably the species' feeding grounds. In contrast, nesting females were captured only in upstream and coastal sandbank areas. Temporally there were distinct differences in harvesting parameters between tribes, which may be explained by differential employment opportunities. To halt the decline of pig-nosed turtles in the Kikori region we recommend the establishment of beach and feeding-ground protection initiatives, together with monitoring of the turtle population and harvest. Concomitantly, trips specifically targeted at harvesting the turtles, which account for 81{\%} of the animals captured, need to be restricted. These initiatives should include all six language-groups and take into account their specific harvesting patterns.",
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    Spatial and temporal patterns of harvesting of the Vulnerable pig-nosed turtle Carettochelys insculpta in the Kikori region, Papua New Guinea. / De Alvarenga, Carla Camilo Eisemberg; Rose, Mark; Yaru, Benedict; Georges, Arthur.

    In: Oryx, Vol. 755, No. 4, 07.10.2015, p. 659-668.

    Research output: Contribution to journalArticleResearchpeer-review

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    AU - De Alvarenga, Carla Camilo Eisemberg

    AU - Rose, Mark

    AU - Yaru, Benedict

    AU - Georges, Arthur

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