Human Ecology

, Volume 42, Issue 3, pp 395–411 | Cite as

Navigating Over Space and Time: Fishing Effort Allocation and the Development of Customary Norms in an Open-Access Mangrove Estuary in Ecuador



Fisheries are increasingly understood as complex adaptive systems; but the cultural, behavioral, and cognitive factors that explain spatial and temporal dynamics of fishing effort allocation remain poorly understood. Using Geographic Information Systems (GIS) as a visualization tool, this paper combines catch-per-unit-effort (CPUE) and ethnographic data on the Ecuadorian mangrove cockle fishery to explore patterns in fishing effort and the social production of fishing space. I argue that individual decisions about where, when, and how to fish result in spatial and temporal patterns in effort allocation, ultimately regulating open-access fisheries that typically operate on a first-come, first-served basis. These emergent patterns in the fishing effort are explained by individual-level preferences and adaptations; the development of knowledge and customary norms through the habitual use of resource space by individuals and groups; ecological conditions; and access. New adaptive challenges threaten to undermine such self-organization of open-access systems on larger spatial and temporal scales prompting a likely re-allocation of the fishing effort in the future.


Artisanal fisheries Local ecological knowledge Decision-making Complex adaptive systems Geographic information systems (GIS) Catch-per-unit-effort (CPUE) Ecuador 


  1. Acheson, J. (1975). The Lobster Fiefs: Economic and Ecological Effects of Territoriality in the Maine Lobster Industry. Human Ecology 3(3): 183–207.CrossRefGoogle Scholar
  2. Acheson, J. (1987). The Lobster Fiefs Revisited: Economic and Ecological Effects of Territoriality in the Maine Lobster Fishery. In McCay, B. J., and Acheson, J. M. (eds.), The Question of the Commons: The Culture and Ecology of Communal Resources. University of Arizona Press, Tucson.Google Scholar
  3. Acheson, J., and Brewer, J. F. (2003). Changes in the Territorial System of the Maine Lobster Industry. In Dolsak, N., and Ostrom, E. (eds.), The Commons in the New Millennium: Challenges and Adaptation. MIT Press, Cambridge.Google Scholar
  4. Acheson, J. M., and Gardner, R. J. (2004). Strategies, Conflict, and the Emergence of Territoriality: The Case of the Maine Lobster Industry. American Anthropologist 106(2): 296–307.CrossRefGoogle Scholar
  5. Acheson, J. (2005). Spatial Strategies and Territoriality in the Maine Lobster Industry. Rationality & Society 17(3): 309–341.CrossRefGoogle Scholar
  6. Acheson, J., Wilson, J. A., and Steneck, R. S. (1998). Managing Chaotic Fisheries. In Berkes, F., Folke, C., and Colding, J. (eds.), Linking Social and Ecological Systems: Management Practices and Social Mechanisms for Building Resilience. Cambridge University Press, Cambridge.Google Scholar
  7. Asociación de Mariscadores Pescadores Artesanales y Afines “Costa Rica”. (2010). Proyecto de Monitoreo Comunitario del Recurso Concha Prieta. Coordinado por Christine Beitl, Adolfo Cruz y Sonia Cruz, Isla Costa Rica, enero - junio de 2010.Google Scholar
  8. Aswani, S., and Lauer, M. (2006). Incorporating Fishermen’s Local Knowledge and Behavior into Geographical Information Systems (GIS) for Designing Marine Protected Areas in Oceania. Human Organization 65(1): 81–102.Google Scholar
  9. Aswani, S. (1998). Patterns of Marine Harvest Effort in Southwestern New Georgia, Solomon Islands: Resource Management Or Optimal Foraging. Ocean and Coastal Management 40(2–3): 207–235.CrossRefGoogle Scholar
  10. Basurto, X. (2005). How Locally Designed Access and Use Controls Can Prevent the Tragedy of the Commons in a Mexican Small-Scale Fishing Community. Society & Natural Resources 18(7): 643–659.CrossRefGoogle Scholar
  11. Basurto, X (2008). Biological and Ecological Mechanisms Supporting Marine Self-Governance: the Seri Callo de Hacha Fishery in Mexico Ecology and Society 13 (2):online: accessed 6/9/10.
  12. Basurto, X., Cinti, A., Bourillón, L., Rojo, M., Torre, J., and Weaver, A. (2012). The Emergence of Access Controls in Small-Scale Fishing Commons: A Comparative Analysis of Individual Licenses and Common Property-Rights in Two Mexican Communities. Human Ecology: An Interdisciplinary Journal 40(4): 597–609.CrossRefGoogle Scholar
  13. Basurto, X., Gelcich, S., and Ostrom, E. (2013). The social–Ecological System Framework as a Knowledge Classificatory System for Benthic Small-Scale Fisheries. Global Environmental Change 23(6): 1366–1380.CrossRefGoogle Scholar
  14. Begossi, A. (1995). Fishing Spots and Sea Tenure: Incipient Forms of Local Management in Atlantic forest Coastal Communities. Human Ecology 23(3): 387–406.CrossRefGoogle Scholar
  15. Begossi, A. (2001). Mapping spots: Fishing Areas or Territories Among Islanders of the Atlantic Forest (Brazil). Regional Environmental Change 2: 1–12.CrossRefGoogle Scholar
  16. Begossi, A. (2006). Temporal Stability in Fishing Spots: Conservation and Co-Management in Brazilian Artisanal Coastal Fisheries. Ecology and Society 11(1): 25.Google Scholar
  17. Beitl, C. M. (2011). Cockles in Custody: The Role of Common Property Arrangements in the Ecological Sustainability of Mangrove Fisheries on the Ecuadorian Coast. International Journal of the Commons 5((2): 485–512. Scholar
  18. Beitl, C. M. (2012a). Beyond Collective Action: A Multi-Scale Analysis of Sustainability in the Mangrove Fishery Commons of Coastal Ecuador. Dissertation, Anthropology, University of Georgia, Athens, GA.Google Scholar
  19. Beitl, C. M. (2012b). Shifting Policies, Access, and the Tragedy of Enclosures in Ecuadorian Mangrove Fisheries: Towards a Political Ecology of the Commons. Journal of Political Ecology 19: 94–113. Scholar
  20. Beitl, C. M., and Cruz, A. (2010). Custodias del Manglar y Monitoreo Comunitario del Recurso Concha Prieta (Anadara tuberculosa y A. similis) en la Isla Costa Rica, El Oro, Ecuador. In Resultados del Monitorero Comunitario con la Asociacion de Costa Rica Diciembre 2009 - Junio de 2010. El Oro, Ecuador.Google Scholar
  21. Berkes, F. (2005). Commons Theory for Marine Resource Management in a Complex World. Senri Ethnological Studies 67: 13–31.Google Scholar
  22. Berkes, F., Colding, J., and Folke, C. (2000). Rediscovery of Traditional Ecological Knowledge as Adaptive Management. Ecological Applications 10: 1251–1262.Google Scholar
  23. Bourdieu, P. (1977). Outline of a Theory of Practice. Cambridge University Press, Cambridge.CrossRefGoogle Scholar
  24. Bravo, M. (2007). Analisis de la Base Legal Para el Otorgamiento de las Concesiones de Manglar, Responsabilidades Jurídicas Respecto a Talas en Zonas Concesionadadas, y Competencias para Expedir los Acuerdos de Uso Sustentable y Custodia del Manglar. In Programa de Manejo de Recursos Costeros, Procedimiento CCI No. PMRC-035-2005 Actualización de los Planes de Manejo de las Concesiones del Manglar. Guayaquil, Ecuador.Google Scholar
  25. Bravo, M., and Altamirano. M. (2006). Actualización del Plan de Manejo del Manglar Concesionado a la Asociación de Pescadores Artesanales, Mariscadores y Afines Costa Rica: Archipiélago de Jambelí. In Programa de Manejo de Recursos Costeros, Procedimiento CCI No. PMRC-035-2005. Guayaquil, Ecuador.Google Scholar
  26. Cashdan, E. (1983). Territoriality Among Human Foragers: Ecological Models and an Application to Four Bushman Groups. Current Anthropology 24(1): 47–66.CrossRefGoogle Scholar
  27. Cashdan, E. (1992). Spatial Organization and Habitat Use. In Smith, E. A., and Winterhalder, B. (eds.), Evolution and Human Behavior. Aldinende Gruyter, New York.Google Scholar
  28. Chimello de Oliveira, L., and Begossi, A. (2011). Last Trip Return Rate Influences Patch Choice Decisions of Small-Scale Shrimp Trawlers: Optimal Foraging in São Francisco, Coastal Brazil. Human Ecology 39(3): 323–332.CrossRefGoogle Scholar
  29. Cinner, J. E. (2005). Socioeconomic Factors Influencing Customary Marine Tenure in the Indo-Pacific. Ecology and Society 10 (1):36. available online:
  30. Cinner, J. E., Sutton, S. G., and Bond, T. G. (2007). Socioeconomic Thresholds That Affect Use of Customary Fisheries Management Tools. Conservation Biology 21(6): 1603–1611.Google Scholar
  31. CLIRSEN-PMRC. (2006). Landcover Data [CD-ROM]. Centro de Levantamientos Integrados de Recursos Naturales por Sensores Remotos & the Programa de Manejo de Recursos Costeros, Guayaquil, Ecuador.Google Scholar
  32. CLIRSEN-PMRC. (2007). Actualización del Estudio Multitemporal de Manglares, Camaroneras y Áreas Salinas en la Costa Continental Ecuatoriana al Año 2006. Guayaquil, Ecuador: Centro de Levantamientos Integrados de Recursos Naturales por Sensores Remotos & the Programa de Manejo de Recursos Costeros.Google Scholar
  33. Cordell, J. (1974). The Lunar-Tide Fishing Cycle in Northeastern Brazil. Ethnology 13(4): 379–392.CrossRefGoogle Scholar
  34. Coulthard, S. (2008). Adapting to Environmental Change in Artisanal Fisheries–Insights from a South Indian Lagoon. Global Environmental Change 18(3): 479–489.CrossRefGoogle Scholar
  35. Daw, T. M. (2008). Spatial Distribution of Effort by Artisanal Fishers: Exploring Economic Factors Affecting the Lobster fisheries of the Corn Islands, Nicaragua. Fisheries Research 90(1–3): 17–25.CrossRefGoogle Scholar
  36. Daw, T. M., Cinner, J. E., McClanahan, T. R., Brown, K., Stead, S. M., Graham, N. A. J., and Maina, J. (2012). To Fish or or to Fish: Factors at Multiple Scales Affecting Artisanal Fishers’ Readiness to Exit a Declining Fishery. PLoS ONE 7: 1–10.Google Scholar
  37. de Castro, F., and Begossi, A. (1996). Fishing at Rio Grande (Brazil): Ecological niche and competition. Human Ecology 24(3): 401–411.CrossRefGoogle Scholar
  38. Durrenberger, E. P., and Palsson, G. (1987). Ownership at Sea—Fishing Territories and Access to Sea Resources. American Ethnologist 14(3): 508–522.CrossRefGoogle Scholar
  39. Dyer, C. L., and McGoodwin, J. R. (eds.) (1994). Folk Management in the World’s Fisheries: Lessons for Modern Fisheries Management. University Press ofo Colorado, Niwot.Google Scholar
  40. Dyson-Hudson, R., and Smith, E. A. (1978). Human Territoriality: An Ecological Reassessment. American Anthropologist 80(1): 21–41.CrossRefGoogle Scholar
  41. Endter-Wada, J., and Keenan, S. P. (2005). Adaptations by Long-Term Commercial Fishing Families in the California Bight: Coping with Changing Coastal Ecological and Social Systems. Human Organization 64(3): 225–239.Google Scholar
  42. Finlayson, A. C., and McCay, B. (1998). Crossing the Threshold of Ecosystem Resilience: The Commercial Extinctinction of Northern Cod. In Berkes, F., Folke, C., and Colding, J. (eds.), Linking Social and Ecological Systems: Management Practices and Social Mechanisms for Building Resilience. Cambridge University Press, Cambridge.Google Scholar
  43. Fulton, E. A., Anthony, D. M., Smith, D. C., and van Putten, I. E. (2011). Human Behaviour: The Key Source of Uncertainty in Fisheries Management. Fish and Fisheries 12(1): 2–17.CrossRefGoogle Scholar
  44. García-Quijano, C. G. (2009). Managing Complexity: Ecological Knowledge and Success in Puerto Rican Small-Scale Fisheries. Human Organization 68(1): 1–17.Google Scholar
  45. Gordon, H. S. (1954). The Economic Theory of a Common-Property Resource: The Fishery. The Journal of Political Economy 62(2): 124–142.CrossRefGoogle Scholar
  46. Griffith, D. C., and Pizzini, M. V. (2002). Fishers at Work, Workers at Sea: a Puerto Rican Journey Through Labor and Refuge. Temple University Press, Philadelphia.Google Scholar
  47. Guest, G. (2003). Fishing Behavior and Decision-Making in an Ecuadorian Community: A Scaled Approach. Human Ecology 31(4): 611–644.CrossRefGoogle Scholar
  48. Hames, R. (1987). Game Conserveration or Efficient Hunting? In McCay, B. J., and Acheson, J. M. (eds.), The Question of the Commons: The Culture and Ecology of Communal Resources. University of Arizona Press, Tucson.Google Scholar
  49. Hamilton, L. C., Colocousis, C. R., and Johansen, S. T. F. (2004). Migration from Resource Depletion: The Case of the Faroe Islands. Society & Natural Resources 17(5): 443–455.CrossRefGoogle Scholar
  50. Hardin, G. (1968). Tragedy of the Commons. Science 162: 1243–1248.CrossRefGoogle Scholar
  51. Hilborn, R. (2007). Managing Fisheries is Managing People: What Has Been Learned. Fish and Fisheries 8(4): 285–296.CrossRefGoogle Scholar
  52. INP (1971). Segundo Censo Pesquero Nacional. Guayaquil, Ecuador: Instituto Nacional de Pesca, Instituto Nacional de Estadistica, Direccion General de Pesca.Google Scholar
  53. Johannes, R. E. (1978). Traditional Marine Conservation Methods in Oceania and their Demise. Annual Review of Ecology and Systematics 9: 349–364.CrossRefGoogle Scholar
  54. Johnson, J. (1998). Research Design and Research Strategies in Cultural Anthropology. In Bernard, H. R. (ed.), The Handbook of Methods in Cultural Anthropology. Altimira Press, Walnut Creek.Google Scholar
  55. Kaplan, D. M., Planes, S., Fauvelot, C., Brochier, T., Lett, C., Bodi, N., Le Loc’h, F., Tremblay, Y., and Georges, J.-Y. (2010). New Tools for the Spatial Management of Living Marine Resources. Current Opinion in Environmental Sustainability 2(1–2): 88–93.CrossRefGoogle Scholar
  56. Kuhl, L., and Sheridan, M. J. (2009). Stigmatized Property, Clams, and Community in Coastal Ecuador. Ecological and Environmental Anthropology 5(1).Google Scholar
  57. Latorre, S. (2012). Territorialities of Power in the Ecuadorian Coast: The Politics of an Environmentally Disposessed Group. DesiguALdades Working Paper Series, No. 23., Berlin: Research Network on Interdependent Inequalities in Latin America.Google Scholar
  58. Latorre, S. (2014). Resisting Environmental Dispossession in Ecuador: Whom Does the Political Category of ‘Ancestral Peoples of the Mangrove Ecosystem’ Include and Aim to Empower? Journal of Agrarian Change. doi:10.1111/joac.12052.
  59. Mahon, R., McConney, P., and Roy, R. N. (2008). Governing Fisheries as Complex Adaptive Systems. Marine Policy 32(1): 104–112.CrossRefGoogle Scholar
  60. Martinez-Alier, J. (2001). Ecological Conflicts and Valuation: Mangroves versus Shrimps in the Late 1990s. Environment and Planning C-Government and Policy 19(5): 713–728.CrossRefGoogle Scholar
  61. McCay, B. (1978). Systems Ecology, People Ecology, and the Anthropology Of Fishing Communities. Human Ecology 6(4): 397–422.CrossRefGoogle Scholar
  62. McCay, B. J., and Acheson, J. M. (1987). The Question of the Commons: The Culture and Ecology of Communal Resources, Arizona studies in human ecology. University of Arizona Press, Tucson.Google Scholar
  63. McGoodwin, J. R. (1990). Crisis in the World’s Fisheries: People, Problems, and Policies. Stanford University Press, Stanford.Google Scholar
  64. McGoodwin, J. R. (1994). “Nowadays, Nobody Has Any Respect”: The Demise of Folk Management in a Rural Mexican Fishery. In Dyer, C. L., and McGoodwin, J. R. (eds.), Folk Management in the World’s Fisheries: Lessons for Modern Fisheries Management. University Press ofo Colorado, Niwot.Google Scholar
  65. McLain, R., Poe, M., Biedenweg, K., Cerveny, L., Besser, D., and Blahna, D. (2013). Making Sense of Human Ecology Mapping: An Overview of Approaches to Integrating Socio-Spatial Data into Environmental Planning. Human Ecology: 1–15.Google Scholar
  66. Mera Orcés, V. (1999). Género, Manglar, y Subsistencia. Quito, Ecuador: Abya Yala.Google Scholar
  67. Mora, E., Moreno, J., and Jurado, V. (2009). La Pesquería Artesanal del Recurso Concha en las Zonas de Esmeraldas y El Oro, Durante el 2008. Boletín Cientifico y Técnico 20(2): 17–36.Google Scholar
  68. Mora, E., Moreno, J., and Jurado, V. (2011). Un Análisis de la Pesquería del Recurso Concha en Ecuador Durante el 2010. Boletin Científico Técnico 21(2): 1–13.Google Scholar
  69. Moritz, M., Scholte, P., Hamilton, I., and Kari, S. (2013). Open Access, Open Systems: Pastoral Management of Common Pool Resources in the Chad Basin. Human Ecology 41: 351–365.CrossRefGoogle Scholar
  70. Narchi, N. E., Cornier, S., Canu, D. M., Aguilar-Rosas, L. E., Bender, M. G., Jacquelin, C, Thiba, M., Moura, G. G. M. and Rutger de Wit. (2013). Marine Ethnobiology a Rather Neglected Area, Which Can Provide an Important Contribution to Ocean And Coastal Management. Ocean & Coastal Management.Google Scholar
  71. NOAA. (2012). NOAA Fisheries Office of Protected Resources: Glossary. National Oceanic and Atmospheric Administration. n.d. [cited 2/19/12 2012].
  72. Nunes, D. M., Hartz, S. M., and Silvano, R. A. M. (2011). Fishing Strategies and Niche Partitioning Among Coastal Fishers in Southern Brazil. Human Ecology 39(4): 535–545.CrossRefGoogle Scholar
  73. Ocampo-Thomason, P. (2006). Mangroves, People and Cockles: Impacts of the Shrimp-Farming Industry on Mangrove Communities in Esmeraldas Province, Ecuador. In Hoanh, C. T., Tuong, T. P., Gowing, J. W., and Hardy, B. (eds.), Environment and Livelihoods in Tropical Coastal Zones: Managing Agriculture-Fishery-Aquaculture Conflicts. CAB International, Oxon.Google Scholar
  74. Ostrom, E. (1990). Governing the Commons: Evolution of Institutions for Collective Action. Edited by E. Ostrom. Cambridge: Cambridge University Press.Google Scholar
  75. Ostrom, E., Burger, J., Field, C. B., Norgaard, R. B., and Policansky, D. (1999). Revisiting the Commons: Local Lessons, Global Challenges. Science 284: 278–282.CrossRefGoogle Scholar
  76. Pollnac, R. B., and Johnson, J. (2005). Folk Management and Conservation of Marine Resources: Towards a Theoretical and Methodological Assessment. In Kishigami, N., Savelle, J. M., and Hakubutsukan, K. M. (eds.), Indigenous Use and Management of Marine Resources. National Museum of Ethnology, Suita.Google Scholar
  77. Rosero Moya, K, and Santillan Salas, C. (2011). Ministerio del Ambiente Entrega Acuerdo de Uso Sustentable y Custodia de Manglar. Boletin No. 498 09-06-2011 (accessed: 8/14/2011).
  78. Ruttan, L. (1998). Closing the Commons: Cooperation for Gain or Restraint? Human Ecology 26(1): 43–66.CrossRefGoogle Scholar
  79. Salas, S., and Gaertner, D. (2004). The Behavioural Dynamics of Fishers: Management Implications. Fish and Fisheries 5(2): 153–167.CrossRefGoogle Scholar
  80. Salas, S., Sumaila, U. R., and Pitcher, T. (2004). Short-term Decisions of Small-Scale Fishers Selecting Alternative Target Species: A Choice Model. Canadian Journal of Fisheries & Aquatic Sciences 61(3): 374–383.CrossRefGoogle Scholar
  81. Smith, M. E. (1977). Those Who Live from the Sea: A Study in Maritime Anthropology. West Pub. Co., St. Paul.Google Scholar
  82. Sosis, R. (2002). Patch Choice Decisions among Ifaluk Fishers. American Anthropologist 104(2): 583–598.CrossRefGoogle Scholar
  83. St. Martin, K. (2001). Making Space for Community Resource Management in Fisheries. Annals of the Association of American Geographers 91(1): 122–142.CrossRefGoogle Scholar
  84. St. Martin, K. (2004). GIS in Marine Fisheries Science and Decision-Making. In Fisher, W. L., and Rahel, F. J. (eds.), Geographic Information Systems in Fisheries. American Fisheries Society, Bethesda.Google Scholar
  85. St. Martin, K., McCay, B. J., Murray, G. D., Johnson, T. R., and Oles, B. (2007). Communities, Knowledge and Fisheries of the Future. International Journal of Global Environmental Issues 7(2): 221–239.Google Scholar
  86. Teh, L., Teh, L., and Meitner, M. (2012). Preferred Resource Spaces and Fisher Flexibility: Implications for Spatial Management of Small-Scale Fisheries. Human Ecology 40(2): 213–226.CrossRefGoogle Scholar
  87. Thomas, F. (2007). The Behavioral Ecology of Shellfish Gathering in Western Kiribati, Micronesia. 2: Patch Choice, Patch Sampling, and Risk. Human Ecology: An Interdisciplinary Journal 35(5): 515–526.CrossRefGoogle Scholar
  88. Valdés-Pizzini, and García-Quijano (2009). Coupling of Humans, Habitats and Other Species: A Study of the Fishers’ Traditional Ecological knowledge (TEK) La Parguera. Caribbean Journal of Science 45(2–3): 363–371.Google Scholar
  89. Van Holt, T. (2012). Landscape Influences on Fisher Success: Adaptation Strategies in Closed and Open Access Fisheries in Southern Chile. Ecology and Society 17(1).Google Scholar
  90. Van Oostenbrugge, J. A. E., van Densen, W. L. T., and Machiels, M. A. M. (2004). How the Uncertain Outcomes Associated with Aquatic and Land Resource Use Affect Livelihood Strategies In Coastal Communities in the Central Moluccas, Indonesia. Agricultural Systems 82(1): 57–91.CrossRefGoogle Scholar
  91. Velásquez Runk, J., Negría, G. O., García, W. Q., and Ismare, C. Q. (2007). Political Economic History, Culture, and Wounaan Livelihood Diversity in Eastern Panama. Agriculture and Human Values 24(1): 93–106.CrossRefGoogle Scholar
  92. Weller, S. C., and Romney, A. K. (1988). Systematic Data Collection, Qualitative research methods. Sage Publications, Newbury Park.Google Scholar
  93. Wilson, J. A. (2002). Scientific Uncertainty, Complex Systems, and the Design of Common Pool Institutions. In Ostrom, E., Dietz, T., Dolsak, N., Stern, P. C., Stonich, S., Weber, E. U., and National Research Council (U.S.) (eds.), The Drama of the Commons. National Academy Press, Washington, DC. Committee on the Human Dimensions of Global Change.Google Scholar
  94. Wilson, J. A., Acheson, J. M., and Johnson, T. R. (2013a). The Cost of Useful Knowledge and Collective Action in Three Fisheries. Ecological Economics 96: 165–172.CrossRefGoogle Scholar
  95. Wilson, J, Hill, J., Kersula, M. Wilson, C. L., Whitsel, L., Yan, L. Acheson, J. Chen, Y., Cleaver, C., Congdon, C., Hayden, A. Hayes, P., Johnson, T. Morehead, G., Steneck, R., Turner, R., Vadas, R. and Wilson, C. J. (2013b). Costly information and the evolution of self-organization in a small, complex economy. Journal of Economic Behavior & Organization 90, Supplement (0):S76-S93.Google Scholar
  96. Zerner, C. (1994). Through a Green Lens: The Construction of Customary Environmental Law and Community in Indonesia’s Maluku Islands. Law and Society Review 28(5): 1079–1122.CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Department of AnthropologyUniversity of MaineOronoUSA

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