Settler colonial acclimatisation: Barrie Ryne Blatchford, America’s Acclimatization Exchange: Animal Acclimatization, Settler Colonialism, and the Transformation of American Nature, 1840-1975, PhD dissertation, Columbia University, 2024 | settler colonial studies blog

Settler colonial acclimatisation: Barrie Ryne Blatchford, America’s Acclimatization Exchange: Animal Acclimatization, Settler Colonialism, and the Transformation of American Nature, 1840-1975, PhD dissertation, Columbia University, 2024

14Jan24

Abstract: This dissertation argues that the significance and extent of American animal “acclimatization”—the nineteenth-century term for the purposeful introduction of non-native wild animals—has been drastically underestimated in previous historiography. Far from a negligible “fad” that only briefly interested a small number of hunters and wildlife enthusiasts, American acclimatization was in fact a large-scale and enduring exercise in bioengineering that introduced dozens of new species to the nation over the course of more than a century. At first led by private individuals and organizations, American acclimatizers introduced several new birds and fish into the country from the mid-nineteenth century, including modern-day mainstays like the English sparrow, ring-necked pheasant, and German carp. While private organizations devoted to animal acclimatization mostly dissipated by the late nineteenth century, the federal government’s biologist-bureaucrats made the acclimatization of new animals a central component of vast efforts to supply America’s hunters and fishers deep into the twentieth century, a persistence that has been heretofore overlooked. In composing the first dedicated study of American animal acclimatization, I visited a dozen different archives and have brought hundreds of previously unexamined sources to bear. These revealed the enduring popularity of animal acclimatization and its persistence as a wildlife rejuvenation tool. These sources also laid bare the ideological motivations for animal acclimatization. Far from salving a nostalgic yearning for the fauna of Europe, Euro-Americans often saw animal acclimatization projects as progressive techniques of environmental management instead. Animal acclimatization projects, moreover, were intertwined with the Euro-American colonization of the American West. Settler-colonial ideology, that fusion of Euro-American racial supremacy with grandiose notions of national identity and expansion, runs through the rhetoric of many acclimatizers. More concretely, the United States Fish Commission effected the violent dispossession and subordination of the Winnemem Wintu People on California’s McCloud River in order to set up the nation’s first chinook salmon hatchery. The USFC used the hatchery to artificially spawn tens of millions of salmon to replenish American waters as well as establish chinook salmon in American and international watersheds where the fish had never existed before. Finally, I argue that the story of American acclimatization—what I call the American “acclimatization exchange”—offers important nuance and modification to the two most famous paradigms in environmental history: the conservation movement and Alfred Crosby’s “Columbian Exchange.” Massive parallel efforts in animal acclimatization indicate that the conservation era featured far more interventionist environmental management than usually appreciated. The early adoption of “fish culture” in 1860s American also suggests that the conservation era’s periodization should be significantly backdated. Furthermore, the sheer popularity and endurance of foreign species acclimatization in the nineteenth and twentieth centuries, plus the fact that Americans often obtained and exchanged species from Asia, India, and the broader Pacific World, temporally and geographically expands on Crosby’s notion of an Atlantic World “Columbian Exchange” in the wake of initial European discovery and colonization.

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