Global cropland connectivity: A risk factor for invasion and saturation by emerging pathogens and pests

The geographic pattern of cropland is an important risk factor for invasion and saturation by crop-specific pathogens and arthropods. Understanding cropland networks supports smart pest sampling and mitigation strategies. We evaluate global networks of cropland connectivity for key vegetatively propagated crops (banana and plantain, cassava, potato, sweet potato, and yam) important for food security in the tropics. For each crop, potential movement between geographic location pairs was evaluated using a gravity model, with associated uncertainty quantification. The highly linked hub and bridge locations in cropland connectivity risk maps are likely priorities for surveillance and management, and for tracing intraregion movement of pathogens and pests. Important locations are identified beyond those locations that simply have high crop density. Cropland connectivity risk maps provide a new risk component for integration with other factors—such as climatic suitability, genetic resistance, and global trade routes—to inform pest risk assessment and mitigation

Nationalistic Authorship and Resistance in Northeastern Sri Lanka

Post-war Sri Lanka is defined by the logic of Sinhala-Buddhist nationalism, glorification and expansion of the military, and the exponential growth of state-corporate economic projects. This article examines the performative politics of the state in mass ritual discourse and spatial domination while acknowledging the various ways in which elements of the Northeastern Tamil community in Sri Lanka are mobilising as an activist community in the post-war period, including political agitation and emancipatory initiatives that respond to social justice issues, such as land grabs. Offering an analysis premised on the concept of performative politics, this article interrogates the process by which the state defines itself, while the Tamil community has used performative politics to communicate the unacceptability of the post-war performance of power. A framework of performative politics in post-war Sri Lanka, I argue, introduces a new grammar of politics more responsive to the nationalistic Sinhala-Buddhist settler-colonial tendencies of the state and to the polyvalent nature of Tamil resistance. On the international level, the state performatively complies with international demands for accountability and reconciliation while continuing to oppress the Tamil minority and undertake nationalistic authorship of post-war space