Highlights d An index to track vulnerability of global rainforests to climate and land use d Four decades of satellite data show widespread vulnerability across the tropics d Response of rainforests to heat and drying varies across the continents d Early warning from the index can identify regions for conservation and restoration

The proliferation of a nongovernmental sector held the promise of linking local actors with national and international ones, thereby contributing to a highly participatory, Habermasian ideal in which the formerly marginalized would find greater participation and expression. Yet the role of international agents in community‐based resource management projects has recently come under scrutiny. In addressing these issues in this article, I consider the roles of different interlocutors in two contrastive phases in an Amazonian community's movement to preserve its endangered fisheries. The comparative exercise demonstrates how institutional agents, by establishing a discourse that structures the criteria through which collective demands may be problematized, may inadvertently shift from mediation to domination, and from local partnering to local production.

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Taking the Northwest Amazon of Brazil as its example, this article argues for the analytic concept of a "speech culture," combining, but heuristically separating, speech practice and language ideology. In the Northwest Amazon, an ideology of language establishes an equivalence between linguistic performance and descent group belonging. In contrast to the fixed, normative notions of groupness, this article explores the dynamic construction of social relations through women's ritualized wept greeting speech. In these interactions, linguistic differentiation is countered by the experience of a single speech act based upon shared principles with organized participation in and by different linguistic codes. Through the collaborative nature of the speech act a common ground is produced and revealed. The community in this sense emerges as a cultural artifact whose production is largely the work of women. Through these speech interactions—of similar sentiments and meanings across different linguistic codes—women of the Northwest Amazon construct a community of talk. [Keywords: women, laments, language, Amazonia]