scholarly journals Coordinated river infrastructure decisions improve net social-ecological benefits

2020 ◽  
Vol 15 (10) ◽  
pp. 104054 ◽  
Author(s):  
Samuel G Roy ◽  
Adam Daigneault ◽  
Joseph Zydlewski ◽  
Allison Truhlar ◽  
Sean Smith ◽  
...  
Science ◽  
2020 ◽  
Vol 368 (6496) ◽  
pp. 1243-1247 ◽  
Author(s):  
Edward J. Gregr ◽  
Villy Christensen ◽  
Linda Nichol ◽  
Rebecca G. Martone ◽  
Russell W. Markel ◽  
...  

Predator recovery often leads to ecosystem change that can trigger conflicts with more recently established human activities. In the eastern North Pacific, recovering sea otters are transforming coastal systems by reducing populations of benthic invertebrates and releasing kelp forests from grazing pressure. These changes threaten established shellfish fisheries and modify a variety of other ecosystem services. The diverse social and economic consequences of this trophic cascade are unknown, particularly across large regions. We developed and applied a trophic model to predict these impacts on four ecosystem services. Results suggest that sea otter presence yields 37% more total ecosystem biomass annually, increasing the value of finfish [+9.4 million Canadian dollars (CA$)], carbon sequestration (+2.2 million CA$), and ecotourism (+42.0 million CA$). To the extent that these benefits are realized, they will exceed the annual loss to invertebrate fisheries (−$7.3 million CA$). Recovery of keystone predators thus not only restores ecosystems but can also affect a range of social, economic, and ecological benefits for associated communities.


Author(s):  
Edwin A. Hernández-Delgado ◽  
Alex E. Mercado-Molina ◽  
Samuel E. Suleimán-Ramos ◽  
Mary Ann Lucking

2021 ◽  
Vol 8 ◽  
Author(s):  
Anastasia C. E. Quintana ◽  
Alfredo Giron-Nava ◽  
Samuel Urmy ◽  
Alli N. Cramer ◽  
Santiago Domínguez-Sánchez ◽  
...  

Marine area-based conservation measures including no-take zones (areas with no fishing allowed) are often designed through lengthy processes that aim to optimize for ecological and social objectives. Their (semi) permanence generates high stakes in what seems like a one-shot game. In this paper, we theoretically and empirically explore a model of short-term area-based conservation that prioritizes adaptive co-management: temporary areas closed to fishing, designed by the fishers they affect, approved by the government, and adapted every 5 years. In this model, no-take zones are adapted through learning and trust-building between fishers and government fisheries scientists. We use integrated social-ecological theory and a case study of a network of such fisheries closures (“fishing refugia”) in northwest Mexico to hypothesize a feedback loop between trust, design, and ecological outcomes. We argue that, with temporary and adaptive area-based management, social and ecological outcomes can be mutually reinforcing as long as initial designs are ecologically “good enough” and supported in the social-ecological context. This type of adaptive management also has the potential to adapt to climate change and other social-ecological changes. This feedback loop also predicts the dangerous possibility that low trust among stakeholders may lead to poor design, lack of ecological benefits, eroding confidence in the tool’s capacity, shrinking size, and even lower likelihood of social-ecological benefits. In our case, however, this did not occur, despite poor ecological design of some areas, likely due to buffering by social network effects and alternative benefits. We discuss both the potential and the danger of temporary area-based conservation measures as a learning tool for adaptive co-management and commoning.


2004 ◽  
Author(s):  
Claudio R. Nigg ◽  
Jay E. Maddock ◽  
Virginia Pressler ◽  
Betty Wood ◽  
Susan Jackson

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