Actor-Network Dynamics in the Use of Carettochelys insculpta Eggs in South Papua: A Social Network Analysis Approach

Authors

  • Purnama Graha Natural Resources and Environmental Management Study Program, IPB University, IPB Baranangsiang Campus, Bogor 16144, Indonesia https://orcid.org/0009-0002-0482-363X
  • Richard Gatot Nugroho Triantoro Forestry Service of West Papua Province, Manokwari 98315 Indonesia
  • Mirza Dikari Kusrini Forest Resources Conservation and Ecotourism, IPB University, IPB Darmaga Campus, Bogor 16680, Indonesia https://orcid.org/0000-0003-1111-2406
  • Syartinilia Syartinilia Department of Landscape Architecture, Faculty of Agriculture, IPB University, IPB University, IPB Darmaga Campus, Bogor 16680, Indonesia https://orcid.org/0000-0002-2657-8690

DOI:

https://doi.org/10.18343/jipi.31.2.232

Keywords:

Centrality metrics, Conservation strategy, Ranching initiatives, Turtle egg harvesting, Wildlife use

Abstract

Carettochelys insculpta, a freshwater turtle with ecological importance in riverine systems and cultural value for local populations in South Papua, Indonesia, is the only remaining member of the Carettochelyidae family. Despite its protected status, egg collection is unsustainable and illegal due to poor governance ability and fragmented stakeholder cooperation. This study employed social network analysis to evaluate the interactions between egg harvesting and trade actors and suggest potential intervention locations. Egg collectors had the highest degree centrality, indicating extensive direct linkages; government players had strong proximity and betweenness centrality, uniting otherwise disparate groups; and brokers with high eigenvector centrality-controlled trade indirectly via links with other major actors. Modularity analysis revealed three actor clusters with stronger internal than external relationships, whereas MR-QAP results indicated non-random patterns driven by institutional linkages. Limitations include the extent of actor coverage, since peripheral stakeholders may not be fully represented, despite confirmation through literature and focus group discussions. Technical assistance for egg collectors, increased collaboration among actor groups, and regulatory measures that are consistent with traditional practices are among the recommendations made. The approach establishes a framework for integrating social and spatial data to detect governance gaps and prioritize solutions in species use management.

Keywords: centrality metrics, cnservation strategy, ranching initiatives, turtle egg harvesting, wildlife use

Downloads

Download data is not yet available.

References

Bennett EL, Robinson JG. 2000. Hunting of wildlife in tropical forests: implications for biodiversity and forest peoples. Environment Department Paper, Biodiversity Series-Impact Studies. America: The World Bank Institute. https://doi.org/10.1596/18297

Borgatti SP, Everett MG, Johnson JC. 2018. Analyzing Social Networks: 2nd Ed. London (UK): Sage Publications.

Burgess EA, Lilley R. 2014. Assessing the Trade in Pig-nosed Turtles Carettochelys insculpta in Papua (ID).

Clifton A, Webster GD. 2017. An Introduction to social network analysis for personality and social psychologists. Social Psychological and Personality Science. 8(4):442–453. https://doi.org/10.1177/1948550617709114

Costa J. 2021. Working paper 35 social network analysis applied to illegal wildlife trade between East Africa and. www.baselgovernance.org. https://doi.org/10.12685/bigwp.2021.35.1-58

Eisemberg C, van Dijk PP, Georges AP, Amepou Y. 2018. Carettochelys insculpta. The IUCN Red List of Threatened Species.

Eisemberg CC, Rose M, Yaru B, Georges A. 2011. Demonstrating decline of an iconic species under sustained indigenous harvest: The pig-nosed turtle (Carettochelys insculpta) in Papua New Guinea. Biol Conserv. 144(9): 2282–2288. https://doi.org/10.1016/j.biocon.2011.06.005

Graha P, Kusrini MD, Syartinilia, Triantoro RGN 2024 Spatial modeling of the use probability for pPig-nosed turtles (Carettochelys insculpta) in South Papua, Indonesia. Biodiversitas 25(9): 3246–3253. https://doi.org/10.13057/biodiv/d250947

[IPBES] The intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. 2022. Thematic assessment report on the sustainable use of wild species of IPBES.

Joyce WG. 2014. A review of the fossil record of turtles of the clade Pan-Carettochelys. Bulletin of the Peabody Museum of Natural History. 55(1): 3–33. https://doi.org/10.3374/014.055.0102

Kusrini MD, Triantoro RGN, Manurung R, Setiawan RA, Kim N. 2024. Local harvest of pig-nosed turtle (Carettochelys insculpta) in The Kao River, Boven Digoel District, South Papua, Indonesia. Biodiversitas 25(2): 522–532. https://doi.org/10.13057/biodiv/d250211

Lemieux AM, Pickles RSA, Weekers D. 2022. Problem Analysis for Wildlife Protection in 55 Steps. Arizona State University (US): Phoenix.

Manan A. 2021. Metode Penelitian Etnografi. Aceh Besar (ID): AcehPo Publishing.

Moser SC, Kalton G. 1979. Survey Methods in Social Investigation. 2nd ed. England (UK): Gower Publishing.

Milles MB, Huberman AM. 1994. An Expanded Sourcebook: Qualitative Data Analysis. London (UK): SAGE Publications.

[Permen LHK] Peraturan Menteri Lingkungan Hidup dan Kehutanan Republik Indonesia No. P.106/ MenLHK Setjen/KUM.1/12/2018 tentang Jenis Tumbuhan dan Satwa yang Dilindungi. 2018.

Shepherd CR, Gomez L, Nijman V. 2020. Illegal wildlife trade, seizures and prosecutions: A 7.5-year analysis of trade in pig-nosed turtles Carettochelys insculpta in and from Indonesia. Global Ecology and Conservation. 24. https://doi.org/10.1016/j.gecco.2020.e01249

Siroski PA, Ciocan H, Hilevski S, Larriera A. 2024. Increasing population status of broad-snouted caiman (Caiman latirostris) based on sustainable use strategies in a managed protected area in Santa Fe, Argentina. Animals. 14(9). https://doi.org/10.3390/ani14091288

Triantoro RGN, Kusrini MD, Prasetyo LB. 2017. Intensitas perburuan dan pola perdagangan kura-kura moncong babi di Sungai Vriendschap, Kabupaten Asmat. Prosiding Seminar Nasional Masyarakat Biodiversitas Indonesia 3(3): 339–344.

Vitt LJ, Caldwell JP 2014 Turtles Herpetology: An Introductory Biology of Amphibians and Reptiles. 4th ed. Amsterdam (NL): Elsevier. pp 523–43. https://doi.org/10.1016/B978-0-12-386919-7.00018-6

Downloads

Published

2026-03-11

How to Cite

Graha, P. (2026) “Actor-Network Dynamics in the Use of Carettochelys insculpta Eggs in South Papua: A Social Network Analysis Approach”, Jurnal Ilmu Pertanian Indonesia, 31(2), pp. 232–244. doi:10.18343/jipi.31.2.232.