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13.2: CULTURAL ECOLOGY

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    Early Cultural Ecologists

    One of the earliest anthropologists to think systematically about the environment was Leslie White. His work built on earlier anthropological concepts of cultural evolution—the idea that cultures, like organisms, evolve over time and progress from simple to more complex. White described how cultures evolved through their ability to use energy as they domesticated plants and animals, captured the energy stored in fossil fuels, and developed nuclear power.8 From this perspective, “human cultural evolution was best understood as a process of increasing control over the natural environment” through technological progress.9 White’s conclusions are at odds with Franz Boas’ historical particularism, which rejected theories based on evolution that labeled cultures as more advanced or less advanced than others and instead looked at each society as a unique entity that had developed based on its particular history. Like earlier anthropologists, White viewed anthropology as a natural science in which one could generate scientific laws to understand cultural differences. His model is useful, however, when exploring the nature of change as our society increasingly harnessed new sources of energy to meet our wants and needs. He was writing at a time when the U.S. economy was booming and our technological future seemed promising, before the environmental movement raised awareness about harm caused by those technologies.

    How the Future Looked 50 Years Ago

    This National Public Radio Planet Money episode captures the enthusiasm for technological progress at the 1964 World’s Fair, when little was known about the environmental damage such technologies would cause. How did people see the future in 1964? How is their idea of the future different from ours today?

    Anthropologist Julian Steward first used the term cultural ecology to describe how cultures use and understand their environments. His fieldwork among the Shoshone emphasized the complex ways they had adapted to the dry terrain of the Great Basin between the Sierra Nevada and Rocky Mountain ranges. He described how a hunting and gathering subsistence economy that relied on pine nuts, grass seeds, berries, deer, elk, sheep, antelope, and rabbits shaped Shoshone culture. Their detailed knowledge of various microclimates and seasonal variations in resource availability structured their migration patterns, social interactions, and cultural belief systems.10 Rather than looking for single evolutionary trajectories for cultures as White had done, Steward looked for multiple evolutionary pathways that led to different outcomes and stressed the variety of ways in which cultures could adapt to ecological conditions.

    Both White and Steward were influenced by materialism, a Marxist concept that emphasized the ways in which human social and cultural practices were influenced by basic subsistence (economic) needs. Both were trained as scientists, which shaped how they looked at cultural variation. Steward was also influenced by processual archaeology, a scientific approach developed in the 1960s that focused primarily on relationships between past societies and the ecological systems they inhabited. The shift in anthropology represented by White and Steward’s work led to increased use of scientific methods when analyzing and interpreting data. In subsequent decades, movements in both anthropology and archaeology criticized those scientific perspectives, challenging their objectivity, a process I examine in greater detail later in this chapter.

    Pigs and Protein

    Subsequent anthropologists built on the work of White and Steward, looking for ecological explanations for cultural beliefs and practices. They also drew on newly developed computer science to think about dynamic feedback systems in which cultural and ecological systems self-regulate to promote social stability—homeostasis. Some fascinating examples of this work include Roy Rappaport’s work in Papua New Guinea and Marvin Harris’ work in India.

     

    Marvin Harris examined Hindu religious beliefs about sacred cattle from functional and materialist perspectives. Among Hindus in India, eating beef is forbidden and cows are seen as sacred animals associated with certain deities. From the perspective of a Western beef-loving country, such beliefs may seem irrational. Why would anyone not want to eat a juicy steak or hamburger? Rejecting earlier academics who regarded the Hindu practice as illogical, Harris argued that the practice makes perfect sense within the Hindu ecological and economic system. He argued that cows were sacred not because of cultural beliefs; instead, the cultural beliefs existed because of the economic and ecological importance of cows in India. Thus, Hindu restrictions regarding cows were an “adaptive” response to the local ecological system rather than the result of Hindu theology.11 Harris explored the importance of cattle for milk production, dung for fuel and fertilizer, labor for plowing, and provision of meat and hides to the lowest caste, untouchables, who were able to slaughter and eat cows and tan their hides because they were already seen as ritually impure.

    Roy Rappaport examined subsistence practices of the Tsembaga in Highland New Guinea, a group that planted taro, yams, sweet potatoes, and sugar cane and raised pigs. Rappaport used scientific terms and concepts such as caloric intake, carrying capacity, and mutualism to explain methods used by the Tsembaga to manage their resources. A population of pigs below a certain threshold provided a number of benefits, such as keeping villages clean by eating refuse and eating weeds in established gardens that had relatively large fruit trees that would not be damaged by the pigs. Once the population reached the threshold, the pigs ate more than weeds and garbage and began to create problems in gardens. In response, the people used periodic ritual feasts to trim the population back, returning the ecological system to equilibrium. Rappaport, like Harris, used ecological concepts to understand the Tsembaga subsistence practices, thus downplaying the role of cultural beliefs and emphasizing ecological constraints.

    These early cultural ecologists viewed cultures as trying to reach and maintain social and ecological equilibrium. This idea aligned with ecological thinking at the time that emphasized the balance of nature and the importance of the various components of an ecosystem in maintaining that balance. However, environments and cultures were rapidly changing as colonization, globalization, and industrialization spread throughout the world. In many of those early cases, anthropologists had ignored these larger processes.

    As ecologists began to develop more-complex models of how ecosystems change through long-term dynamic processes of succession and disturbances (such as storms, droughts, and El Niño events), anthropological approaches to the environment also changed. The next sections examine those shifts in anthropology as environmental movements developed in response to increasing degradation of natural environments.

    Early anthropologists were notable for their attempts to understand how different groups of people interacted with their environments over time. Their work paved the way for future environmental anthropologists even though they generally were not directly concerned with environmental problems associated with modernity, such as pollution, tropical deforestation, species extinctions, erosion, and global warming. As people around the world became more familiar with such issues, environmental anthropologists took note and began to analyze those problems and accompanying conservation movements, especially in the developing world, which was still the primary focus of most anthropological research.