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Numerous studies in the US Southwest suggest that prehistoric artiodactyl populations in areas of dense human settlement experienced population reductions which substantially reduced their availability to human hunters. Although most assemblages from villages in this region are dominated by lagomorphs, some settlements maintained greater access to artiodactyls. Factors influencing this variability include both local settlement history and settlement location relative to productive source areas for large game. In our study areas, source–sink dynamics likely contributed to the long-term resilience of hunted artiodactyl populations and allowed villagers continued access to animals moving in from source areas despite relatively rapid game depletion in heavily hunted areas immediately around villages.  相似文献   

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Abstract

The period from the late 1840s to the early 1870s represented a distinct one in Irish-American politics. This article frames Irish-American nationalists active in this period as nonstate actors seeking to influence the course of U.S. foreign relations to serve their own interests. In particular, it focuses on the activities of the Fenian Brotherhood and an earlier, less well-known organization, the Robert Emmet Club. The actions of both highlighted the looseness of U.S. neutrality legislation and, ultimately, provided a compelling argument for Anglo-American rapprochement. Simultaneously, in the immediate postbellum years, U.S. statesmen had reason to manipulate the Irish question to further their own ends. As Anglo-American relations improved, however, the geopolitical value of Irish nationalism declined; Irish-American nationalists were left marginalized in the calculations of U.S. diplomats.  相似文献   

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