Skip to main content

Advertisement

Log in

To Poach or Not to Poach an Endangered Species: Elucidating the Economic and Social Drivers Behind Illegal Sea Turtle Hunting in Baja California Sur, Mexico

  • Published:
Human Ecology Aims and scope Submit manuscript

Abstract

Despite complete legal protection, improvements in infrastructure, and market conditions that provide easier access to other protein sources, illegal poaching of sea turtles for consumption in Baja California Sur (BCS), Mexico remains a major threat to their recovery. Few studies have focused on understanding the economic and social drivers behind this activity, which is fundamental to determining best practices for discouraging it. From June 2007 to April 2008 we conducted eight in-depth, semi-structured interviews with sea turtle poachers at five coastal communities in BCS to determine the drivers influencing them. The most prevalent reasons for illegal poaching were direct economic benefits, lack of law enforcement and ease of escape from or bribery of authorities, and strong family tradition. Our results suggest that to reduce illegal poaching it will be necessary to better enforce existing environmental laws, reduce social acceptance of sea turtle hunting throughout the region, educate fishers on the ecological importance of sea turtles, and show fishers direct economic benefits from non-consumptive use of sea turtles, such as ecotourism.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1

Similar content being viewed by others

References

  • Ackers, R. L. (1985). Deviant Behaviour: A Social Learning Approach. Wadsworth, Belmont.

    Google Scholar 

  • Aguirre, A. A., Gardner, S. C., Marsh, J. C., Delgado, S. G., Limpus, C. J., and Nichols, W. J. (2006). Hazards Associated with the Consumption of Sea Turtle Meat and Eggs: A Review for Health Care Workers and the General Public. EcoHealth 3: 141–153.

    Article  Google Scholar 

  • Baland, J. P., and Platteau, J. P. (1996). Halting Degradation of Natural Resources. FAO book, Rome.

    Google Scholar 

  • Balmford, A., Bruner, A., Cooper, P., Costanza, R., Farber, S., Green, R. E., Jenkins, M., Jefferiss, P., Jessamy, V., Madden, J., Munro, K., Myers, N., Naeem, S., Paavola, J., Rayment, M., Rosendo, S., Roughgarden, J., Trumper, K., and Turner, R. K. (2002). Economic Reasons for Conserving Wild Nature. Science 297: 950–953.

    Article  Google Scholar 

  • Bandura, A. (1977). Social Learning Theory. Prentice Hall, Englewood Cliffs.

    Google Scholar 

  • Becker, G. S. (1968). Crime and Punishment: An Economic Approach. Journal of Political Economy 76: 169–212.

    Article  Google Scholar 

  • Bell, C., Blumenthal, J., Austin, T., Solomon, J., Ebanks-Petrie, G., and Broderick, A. (2006). Traditional Caymanian Fishery May Impede Local Marine Turtle Population Recovery. Endangered Species Research 2: 63–9.

    Article  Google Scholar 

  • Bennett, E. L., and Rao, M. (2002). Wild meat consumption in Asian tropical forest countries: is this a glimpse of the future for Africa? In Mainka, S., and Trivedi, M. (eds.), (2002) Links between Biodiversity, Conservation, Livelihoods and Food Security: The Sustainable Use of Wild Species for Meat pp. 39–44, IUCN.

  • Berkes, F., Peter, G., and Preston, R. J. (1991). Co-management: The Evolution in Theory and Practice of the Joint Administration of Living Resources. Alternatives 18: 12–18.

    Google Scholar 

  • Bórquez-Reyes, R., Pombo, O. A., and Ponce-Díaz, G. (2009). Fishers’ Reasons for Poaching Abalone (Haliotidae): A Study in the Baja California Peninsula, Mexico. North American Journal of Fisheries Management 29: 237–244.

    Article  Google Scholar 

  • Caldwell, D. K. (1963). The Sea Turtle Fishery of Baja California, Mexico. California Fish and Game 49: 140–151.

    Google Scholar 

  • Campbell, L. M. (2002). Science and sustainable use: views of marine turtle conservation experts. Ecological Applications, 12(4): 1229–1246.

    Google Scholar 

  • Campbell, L. M. (2003). Contemporary culture, use, and conservation of sea turtles. In Lutz, P. L., Musick, J. A., and Wyneken, J. (eds.), Biology of Sea Turtles, IIth ed. CRC, Boca Raton, pp. 307–338.

    Google Scholar 

  • Campbell, L. M., Silver, J. J., Gray, N. J., Ranger, S., Broderick, A. C., Fisher, T., Godfrey, M. H., Gore, S., Hodge, K. V. D., Jeffers, J., Martin, C. S., McGowan, A., Richardson, P. B., Sasso, S., Slade, L., and Godley, B. J. (2009). Co-management of Sea Turtle Fisheries: Biogeography versus Geopolitics. Marine Policy 33: 137–145.

    Article  Google Scholar 

  • Charles, A. T., Mazany, R. L., and Cross, M. L. (1999). The Economics of Illegal Fishing: A Behavioural Model. Marine Resource Economics 14: 95–110.

    Google Scholar 

  • Clifton, K., Cornejo, D. O., and Felger, R. S. (1979). Sea turtles of the Pacific coast of Mexico. In Bjorndal, K. A. (ed.), Biology and Conservation of Sea Turtles. Smithsonian Inst. Press, pp. 199–209.

  • Clifton, K., Cornejo, D. O., and Felger, R. S. (1995). Sea turtles of pacific coast of Mexico. In Bjorndal, K. A. (ed.), Biology y Conservation of Sea Turtles. Smithsonian Institute Press, Washington, DC.

    Google Scholar 

  • Código Penal Federal de México (1996). Título Vigésimo Quinto, Delitos Contra el Ambiente y la Gestión Ambiental Capítulo II, De la Biodiversidad, Artículo 420. February 27.

  • CONAPESCA (2003). Anuario estadistico de Acuacultura y Pesca 2003. Mexico.

  • Crouse, D. T., Crowder, L. B., and Caswell, H. (1987). A Staged-based Population Model for Loggerhead Sea Turtles y Implication for Conservation. Ecology 68(5): 1412–1423.

    Article  Google Scholar 

  • Crowder, L. B., Crouse, D. T., Heppell, S. S., and Martin, T. H. (1994). Predicting the Impact of Turtle Excluder Devices on Loggerhead Sea Turtle Populations. Ecological Applications 4(3): 437–445.

    Article  Google Scholar 

  • Delgado, S., and Nichols, W. J. (2005). Saving Sea Turtles from the Ground Up: Awakening Sea Turtle Conservation in Northwestern Mexico. MAST/Maritime Studies 2005, 3 and 4: 89–104.

  • Diamond, J. (1991). The Rise and Fall of the Third Chimpanzee. Vintage, London.

    Google Scholar 

  • Diario Oficial de la Federación (DOF) (1990). Acuerdo que establece veda para todas las especies y subspecies de Tortugas marinas en aguas de jurisdicción nacional de los litorales del Oceano Pacifico, Golfo de Mexico y Mar Caraibe. Diario official de la Federación, Mexico, May 31, pp. 21–22.

  • Dunn, K. (2000). Interviewing. In Hay I. (ed.), Qualitative research methods in human geography. Oxford University Press, Melbourne, Australia, pp. 50–82 .

  • Ede, A. J. (2000). The prevention of police corruption and misconduct: a criminological analysis of complaints against the police. PhD Dissertation, Griffith University, Brisbane, Australia.

  • Felger, R. S., and Moser, M. (1987). Sea turtles in Seri Indian culture. Environment Southwest Autumn: 18–21.

  • Frazier, J. (2003). Prehistoric and ancient historic interactions between humans and marine turtles. In Lutz, P. L., Musick, J. A., and Wyneken, J. (eds.), Biology of Sea Turtles, IIth ed. CRC, Boca Raton, pp. 1–38.

    Google Scholar 

  • Furlong, W. J. (1991). The Deterrent Effect of Regulatory Enforcement in the Fishery. Land Economics 67: 116.

    Article  Google Scholar 

  • Fussy, A., Pommier, P., Lumbroso, C., and Haro, L. (2007). Chelonitoxism: New Case Reports in French Polynesia and Review of the Literature. Toxicon 49: 827–832.

    Article  Google Scholar 

  • Garcia-Martínez, S., and Nichols, W. J. (2000). Sea turtles of Bahía Magdalena, BCS, Mexico: Demand and supply of an endangered species. 10th Conf. Int. Inst. Fish. Econ. Trade. Oregon State University, Corvallis, Oregon. 07/2000.

  • Gardner, S. C., and Nichols, W. J. (2001). Assessment of Sea Turtle Mortality Rates in the Bahia Magdalena Region, BCS, Mexico. Chelonian Conservation Biology 4: 197–199.

    Google Scholar 

  • Gezelius, S. S. (2002). Do Norms Count? State Regulation and Compliance in a Norwegian Fishing Community. Acta Sociolologica 45: 305–314.

    Article  Google Scholar 

  • Gezelius, S. S. (2004). Food, Money, and Morals: Compliance Among Natural Resource Harvesters. Human Ecology 32: 615–634.

    Article  Google Scholar 

  • Grazette, S., Horrocks, J. A., Phillip, P. E., and Isaac, C. J. (2007). An Assessment of the Marine Turtle Fishery in Grenada, West Indies. Oryx 1: 330–336.

    Google Scholar 

  • Hastings, R. M., and Fischer, D. W. (2001). Management Priorities for Magdalena Bay, Baja California Mexico. Journal of Coastal Conservation 7: 193–202.

    Article  Google Scholar 

  • Heppell, S., Crowder, L. B., and Menzel, T. R. (1999). Life table analysis of long-lived marine species with implications for conservation y management. In Musick, J. A. (ed.), Life in the Slow Lane: Ecology and Conservation of Long-lived Marine Animals. American Fisheries Society Symposium 23, Bethesda, Maryland, pp. 137–148.

  • INEGI. (2005). Anuario estadistico del estado de Baja California Sur. Available at: http://www.inegi.gob.mx

  • IUCN. (2009). IUCN Red List of Threatened Species. Downloaded at: http://www.iucnredlist.org/ on 10 August 2009.

  • Keane, A., Jones, J. P. G., Edwards-Jones, G., and Milner-Gulland, E. J. (2008). The Sleeping Policeman: Understanding Issues of Enforcement and Compliance in Conservation. Animal Conservation 11: 75–82.

    Article  Google Scholar 

  • Kitchen, R., and Tate, N. J. (2000). Conducting research in human geography. Prentice Hall, Essex, UK.

  • Koch, V., Nichols, W. J., Peckham, H., and de la Toba, V. (2006). Estimates of Sea Turtle Mortality from Poaching and Bycatch in Bahía Magdalena, Baja California Sur, Mexico. Biological Conservation 128: 327–334.

    Article  Google Scholar 

  • Kohlberg, L. (1984). Essays on Moral Development, vol. 2. Harper and Row, San Francisco.

    Google Scholar 

  • Kuperan, K., and Sutinen, J. G. (1998). Blue Water Crime: Deterrence, Legitimacy and Compliance in Fisheries. Law and Society Review 32: 309–38.

    Article  Google Scholar 

  • Larson, P., Freudenberger, M., and Wyckoff-Baird, B. (1997). Lessons from the Field: A Review of World Wildlife Fund’s Experience with Integrated Conservation and Development Projects 1989e1996. World Wildlife Fund, Washington, DC.

  • Leader-Williams, N., and Milner-Gulland, E. J. (1993). Policies for the Enforcement of Wildlife Laws: The Balance Between Detection and Penalties in Luangwa Valley, Zambia. Conservation Biology 7: 611.

    Article  Google Scholar 

  • Lindsay, J. (1997). Techniques in human geography. Routledge, London, UK.

  • Mack, D., Duplaix, N., and Wells, S. (1982). Sea turtles, animals of divisible parts: international trade in sea turtle products. In Bjorndal, K. (ed.), Biology and Conservation of Sea Turtles. Smithsonian Institution Press, Washington DC, pp. 545–565.

  • Mancini, A., and Koch, V. (2009). Sea Turtle Consumption and Black Market Trade in Baja California Sur, Mexico. Endangered Species Research 7(1): 1–10.

    Article  Google Scholar 

  • Mancini, A., Koch, V., Seminoff, J., and Madon, B. (in press). Small-scale Mesh-nets Fisheries Provokes Massive Green Turtles (Chelonia mydas) Mortality: A Case Study from Baja California Sur, Mexico. Oryx.

  • Marquez, R. (1990). Sea Turtles of the World. An Annotated and Illustrated Catalogue of Sea Turtle Species Known to Date. FAO Species Catalogue, FAO Fisheries Synopsis 11(125), 81p.

  • Milner-Gulland, E., Bennett, E., and SAMWM Group (2003). Wild Meat: The Bigger Picture. TRENDS in Ecology and Evolution 18(7): 351–357.

    Article  Google Scholar 

  • Milner-Gulland, E. J., and Leader-Williams, N. (1992). A Model of Incentives for the Illegal Exploitation of Black Rhinos and Elephants—Poaching Pays in Luangwa-Valley, Zambia. Journal of Applied Ecology 29: 388–401.

    Article  Google Scholar 

  • National Marine Fishery Service and U.S. Fishery Wildlife Service (NMFS-USFWS) (2007). Green Sea Turtles (Chelonia mydas)—5-year Review: Summary and Evaluation. Jacksonville FL, August 2007.

  • Nichols, W. J. (2003). Biology and Conservation of the Sea Turtles of the Baja California Peninsula, Mexico. Ph.D. Dissertation, University of Arizona, Tucson.

  • Nichols, W. J., and Safina, C. (2004). Lunch with a Turtle Poacher. Conservation in Practice 5(4): 30–36.

    Article  Google Scholar 

  • O’Donnell, J. (1974). Green turtle fishery in Baja California waters: history y prospect. Master’s thesis, California State University, CA. 119p.

  • Olguin-Mena, M. (1990). Las tortugas marinas en la costa oriental de Baja California y costa occidental de Baja California Sur, Mexico. Dept. de Biologia Marina. Universidad Autonoma de Baja California Sur. La Paz, Baja California Sur, Mexico. Tesis de licenciatura 74 pp.

  • Peckham, S. H., Maldonado-Diaz, D., Walli, A., Ruiz, G., Crowder, L. B., and Nichols, W. J. (2007). Small-Scale Fisheries Bycatch Jeopardizes Endangered Pacific Loggerhead Turtles. PLoS ONE 2(10): e1041 doi:10.1371/journal.pone.0001041.

    Article  Google Scholar 

  • Peckham, S. H., Maldonado-Diaz, D., Koch, V., Mancini, A., Gaos, A., Tinker, M. T., and Nichols, W. J. (2008). High Mortality of Loggerhead Turtles Due To Bycatch, Human Consumption and Strandings at Baja California Sur, Mexico, 2003 to 2007. Endangered Species Research 5: 171–183.

    Article  Google Scholar 

  • SAGARPA (2007). Anuario de pesca. Available at: http://www.sagarpa.gob.mx.

  • Salafsky, N., Cauley, H., Balachander, G., Cordes, B., Parks, J., Margoluis, C., Bhatt, S., Encarnacion, S., Russell, D., and Margoluis, R. (2001). A Systematic Test of an Enterprisestrategy for Community-based Biodiversity. Conservation Biology 15: 1585–1595.

    Article  Google Scholar 

  • Secretaría para el Trabajo y la Prevision Social (STPS) (2007). Salario promedio de cotización de IMSS. Available online at: www.conasami.gob.mx, Dec. 2007.

  • Senko, J., Nichols, W. J., Ross, J. P., and Willcox, A. S. (2009). To Eat or Not to Eat an Endangered Species: Views of Local Residents and Physicians on the Safety of Sea Turtle Consumption in Northwestern Mexico. EcoHealth 6: 584–595.

    Article  Google Scholar 

  • Senko, J., Schneller, A. J., Solis, J., Ollervides, F., and Nichols, W. J. (2011). People Helping Turtles, Turtles Helping People: Understanding Resident Attitudes Towards Sea Turtle Conservation and Opportunities for Enhanced Community Participation. Ocean & Coastal Management 54: 148–157.

    Article  Google Scholar 

  • Sesnowitz, M. (1972). The Returns to Burglary. Western Economic Journal 10: 477–481.

    Google Scholar 

  • Sheil, D., and Wunder, S. (2002). The Value of Tropical Forest to Local Communities: Complications, Caveats, and Cautions. Conservation Ecology 6: 9.

    Google Scholar 

  • Stigler, G. J. (1970). The Optimum Enforcement of Laws. Journal of Political Economics 78: 526–536.

    Article  Google Scholar 

  • Sumaila, U. R., Alder, J., and Keith, H. (2006). Global Scope and Economics of Illegal Fishing. Marine Policy 30(6): 696–703.

    Article  Google Scholar 

  • Sutinen, J. G., and Gauvin, J. R. (1989). Assessing Compliance with Fishery Regulations. Maritimes 33: 10–12.

    Google Scholar 

  • Sutinen, J. G., and Kuperan, K. (1999). A Socioeconomic Theory of Regulatory Compliance in Fisheries. International Journal of Social Economics 26: 174–93.

    Article  Google Scholar 

  • Thomson, D. A., Findley, L., and Kerstich, A. (1979). Common Reef Fishes from the Sea of Cortez. John Wiley and Sons, New York.

    Google Scholar 

  • Troëng, S., and Drews, C. (2004). Money Talks: Economic Aspects of Marine Turtle Use and Conservation, WWF-International, Gland, Switzerland. Available at www.panda.org

  • Winchester, H. P. M. (2000). Qualitative research and its place in human geography. In Hay I. (ed.), Qualitative research methods in human geography. Oxford University Press, Melbourne, Australia, pp. 1–22.

  • Young, E. (2001). State Intervention and Abuse of the Commons: Fisheries Development in Baja California Sur, Mexico. Annals of the Association of American Geographers 91: 283–306.

    Article  Google Scholar 

Download references

Acknowledgements

We would like to thank the Secretaría para el Medio Ambiente y los Recursos Naturales (SEMARNAT) for providing the permits under which this study was conducted (SGPA/DGVS/03846). This project was funded by Consejo Nacional de Ciencias y Tecnologias (CONACyT) grant SEMARNAT-2004-C01-277. Special thanks to Dr. Milner-Gulland and three anonymous reviewers for their comments and suggestions that clearly improved this manuscript. We would like to thank all the fishermen that allowed us to interview them. Special thanks go to Javier Villavicencio, Alfredo Benitez, Gabriel Zaragoza, Francisco Fisher, Julio Solis, and Willy for their invaluable help. We would also like to thank the many members of Grupo Tortuguero for supporting our project. AM was funded by Rufford Small Grants for Conservation and Society for Conservation GIS (SGIS).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Agnese Mancini.

Electronic supplementary material

Below is the link to the electronic supplementary material.

ESM 1

(PDF 70 kb)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Mancini, A., Senko, J., Borquez-Reyes, R. et al. To Poach or Not to Poach an Endangered Species: Elucidating the Economic and Social Drivers Behind Illegal Sea Turtle Hunting in Baja California Sur, Mexico. Hum Ecol 39, 743–756 (2011). https://doi.org/10.1007/s10745-011-9425-8

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10745-011-9425-8

Keywords

Navigation