摘要 : Common property arrangements govern the subsistence harvest of berries in the Gwich'in region of the Northwest Territories, Canada. Some of these arrangements, including rules for resource access, sharing information and harvest s... 展开 Common property arrangements govern the subsistence harvest of berries in the Gwich'in region of the Northwest Territories, Canada. Some of these arrangements, including rules for resource access, sharing information and harvest sharing, enable the Gwich'in to deal with ecological variability. The rules change in response to year-to-year variations in the abundance and distribution of the species, spatially and temporally across the region. This paper illustrates the interrelationships between ecosystem dynamics and local institutions, a neglected area of commons research. 收起