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1. Linking subsistence harvest diversity and productivity to adaptive capacity in an Alaskan food sharing network

   https://doi.org/10.1002/ajhb.23573  

   Scaggs, Shane A. ; Gerkey, Drew ; McLaughlin, Katherine R. ( February 2021 , American Journal of Human Biology)

   Although anthropogenic climate change poses existential challenges for Indigenous communities in the Arctic, these challenges are not entirely unprecedented. Over many generations, Arctic peoples have developed a wide range of behavioral strategies to navigate environmental change and uncertainty, and these strategies provide a foundation for contemporary adaptation.

   In this article, we focus on mixed cash‐subsistence economies and the social networks that underlie them in Alaska. The patterns of food production, labor exchange, and food sharing in subsistence‐oriented communities throughout Alaska are driven by the productivity of keystone households who regularly harvest and share resources within and between communities.

   Building on previous research suggesting the critical importance of these networks to community resilience, we use network analysis to investigate whether patterns in resource transfers between households are associated with subsistence harvest diversity—the diversity of species harvested by a household unit. We use exponential random graph models to describe the structure of a sharing network from Aniak, Alaska, and model the links between harvest productivity, harvest diversity, and household position in this network.

   Our results indicate that both productivity and diversity are positively associated with network connections, and that productivity alone provides an incomplete model of network structure.

   We suggest that subsistence harvest diversity may play a unique role in supporting adaptive capacity and resilience by maintaining the productivity of keystone households despite changing environments and sustaining social network structures that circulate resources throughout the community. Harvest diversity may also serve as a broad indicator of Indigenous ecological knowledge and a tangible representation of cultural practices, values, and worldviews that underlie subsistence in Alaska.

   Greater attention to harvest diversity is important for understanding how subsistence networks adapt to environmental change and uncertainty linked to social and ecological dynamics of anthropogenic climate change.

    

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2. Seeing Green: Lifecycles of an Arctic Agricultural Frontier ☆

   https://doi.org/10.1111/ruso.12506  

   Price, Mindy Jewell ( July 2023 , Rural Sociology)

   Imaginaries of empty, verdant lands have long motivated agricultural frontier expansion. Today, climate change, food insecurity, and economic promise are invigorating new agricultural frontiers across the circumpolar north. In this article, I draw on extensive archival and ethnographic evidence to analyze mid‐twentieth‐century and recent twenty‐first‐century narratives of agricultural development in the Northwest Territories, Canada. I argue that the early frontier imaginary is relatively intact in its present lifecycle. It is not simply climactic forces that are driving an emergent northern agricultural frontier, but rather the more diffuse and structural forces of capitalism, governmental power, settler colonialism, and resistance to those forces. I also show how social, political, and infrastructural limits continue to impede agricultural development in the Northwest Territories and discuss how smallholder farmers and Indigenous communities differently situate agricultural production within their local food systems. This paper contributes to critical debates in frontiers and northern agriculture literature by foregrounding the contested space between the state‐driven and dominant public narratives underpinning frontier imaginaries, and the social, cultural, and material realities that constrain them on a Northwest Territories agricultural frontier.

    

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3. Sustainable hydropower in the 21st century

   https://doi.org/10.1073/pnas.1809426115  

   Moran, Emilio F. ; Lopez, Maria Claudia ; Moore, Nathan ; Müller, Norbert ; Hyndman, David W. ( November 2018 , Proceedings of the National Academy of Sciences)

   Hydropower has been the leading source of renewable energy across the world, accounting for up to 71% of this supply as of 2016. This capacity was built up in North America and Europe between 1920 and 1970 when thousands of dams were built. Big dams stopped being built in developed nations, because the best sites for dams were already developed and environmental and social concerns made the costs unacceptable. Nowadays, more dams are being removed in North America and Europe than are being built. The hydropower industry moved to building dams in the developing world and since the 1970s, began to build even larger hydropower dams along the Mekong River Basin, the Amazon River Basin, and the Congo River Basin. The same problems are being repeated: disrupting river ecology, deforestation, losing aquatic and terrestrial biodiversity, releasing substantial greenhouse gases, displacing thousands of people, and altering people’s livelihoods plus affecting the food systems, water quality, and agriculture near them. This paper studies the proliferation of large dams in developing countries and the importance of incorporating climate change into considerations of whether to build a dam along with some of the governance and compensation challenges. We also examine the overestimation of benefits and underestimation of costs along with changes that are needed to address the legitimate social and environmental concerns of people living in areas where dams are planned. Finally, we propose innovative solutions that can move hydropower toward sustainable practices together with solar, wind, and other renewable sources. 

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4. Joint strategic energy and river basin planning to reduce dam impacts on rivers in Myanmar

   https://doi.org/10.1088/1748-9326/abe329  

   Schmitt, Rafael J. P. ; Kittner, Noah ; Kondolf, G. Mathias ; Kammen, Daniel M. ( May 2021 , Environmental Research Letters)

   Tackling climate change and human development challenges will require major global investments in renewable energy systems, including possibly into large hydropower. Despite well-known impacts of hydropower dams, most renewable energy assessments neither account for externalities of hydropower nor evaluate possible strategic alternatives. Here we demonstrate how integrating energy systems modeling and strategic hydropower planning can resolve conflicts between renewable energy and dam impacts on rivers. We apply these tools to Myanmar, whose rivers are the last free-flowing rivers of Asia, and where business-as-usual (BAU) plans call for up to 40 GW of new hydropower. We present alternative energy futures that rely more on scalable wind and solar, and less on hydropower (6.7–10.3 GW) than the BAU. Reduced reliance on hydropower allows us to use river basin models to strategically design dam portfolios for minimized impact. Thus, our alternative futures result in greatly reduced impacts on rivers in terms of sediment trapping and habitat fragmentation, and result in lower system costs ($8.4 billion compared to $11.7 billion for the BAU). Our results highlight specific opportunities for Myanmar but also demonstrate global techno-ecological synergies between climate action, equitable human development and conservation of riparian ecosystems and livelihoods.

    

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5. Arthropods are kin: Operationalizing Indigenous data sovereignty to respectfully utilize genomic data from Indigenous lands

   https://doi.org/10.1111/1755-0998.13822  

   Hutchins, Leke ; Mc Cartney, Ann ; Graham, Natalie ; Gillespie, Rosemary ; Guzman, Aidee ( July 2023 , Molecular Ecology Resources)

   Indigenous peoples have cultivated biodiverse agroecosystems since time immemorial. The rise of metagenomics and high‐throughput sequencing technologies in biodiversity studies has rapidly expanded the scale of data collection from these lands. A respectful approach to the data life cycle grounded in the sovereignty of indigenous communities is imperative to not perpetuate harm. In this paper, we operationalize an indigenous data sovereignty (IDS) framework to outline realistic considerations for genomic data that span data collection, governance, and communication. As a case study for this framework, we use arthropod genomic data collected from diversified and simplified farm sites close to and far from natural habitats within a historic Kānaka ʻŌiwi (Indigenous Hawaiian) agroecosystem. Diversified sites had the highest Operational Taxonomic Unit (OTU) richness for native and introduced arthropods. There may be a significant spillover effect between forest and farm sites, as farm sites near a natural habitat had higher OTU richness than those farther away. We also provide evidence that management factors such as the number of Polynesian crops cultivated may drive arthropod community composition. Through this case study, we emphasize the context‐dependent opportunities and challenges for operationalizing IDS by utilizing participatory research methods, expanding novel data management tools through the Local Contexts Hub, and developing and nurturing community partnerships—all while highlighting the potential of agroecosystems for arthropod conservation. Overall, the workflow and the example presented here can help researchers take tangible steps to achieve IDS, which often seems elusive with the expanding use of genomic data.

    

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