National Center for Ecological Analysis and Synthesis

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1701-1710 of 6248
  1. Publication

    The potential impact of new Andean dams on Amazon fluvial ecosystems

    Increased energy demand has led to plans for building many new dams in the western Amazon, mostly in the Andean region. Historical data and mechanistic scenarios are used to examine potential impacts above and below six of the largest dams planned for the region, including reductions in downstream sediment and nutrient supplies, changes in downstream flood pulse, changes in upstream and downstream fish yields, reservoir siltation, greenhouse gas emissions and mercury contamination.

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  2. Publication

    The value of coastal wetlands for flood damage reduction in the Northeastern USA

    As exposure to coastal hazards increases there is growing interest in nature-based solutions for risk reduction. This study uses high-resolution flood and loss models to quantify the impacts of coastal wetlands in the northeastern USA on (i) regional flood damages by Hurricane Sandy and (ii) local annual flood losses in Barnegat Bay in Ocean County, New Jersey. Using an extensive database of property exposure, the regional study shows that wetlands avoided $625 Million in direct flood damages during Hurricane Sandy.

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  3. Publication

    Improving understanding of the functional diversity of fisheries by exploring the influence of global catch reconstruction

    Functional diversity is thought to enhance ecosystem resilience, driving research focused on trends in the functional composition of fisheries, most recently with new reconstructions of global catch data. However, there is currently little understanding of how accounting for unreported catches (e.g. small-scale and illegal fisheries, bycatch and discards) influences functional diversity trends in global fisheries. We explored how diversity estimates varied among reported and unreported components of catch in 2010, and found these components had distinct functional fingerprints.

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  4. Publication

    Monitoring and enforcement cost estimates

    COST estimates of the different monitoring and enforcement strategies to manage fisheries

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  5. Publication

    TNC's global coastal fisheries strategy

    informed TNC global fisheries strategy plan

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  6. Publication

    The bien r package: A tool to access the Botanical Information and Ecology Network (BIEN) database

    1. There is an urgent need for large-scale botanical data to improve our understanding of community assembly, coexistence, biogeography, evolution, and many other fundamental biological processes.

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  7. Publication

    Benefits and risks of diversification for individual fishers

    Individuals relying on natural resource extraction for their livelihood face high income variability driven by a mix of environmental, biological, management, and economic factors. Key to managing these industries is identifying how regulatory actions and individual behavior affect income variability, financial risk, and, by extension, the economic stability and the sustainable use of natural resources. In commercial fisheries, communities and vessels fishing a greater diversity of species have less revenue variability than those fishing fewer species.

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  8. Publication

    Financial viability and carbon payment potential of large-scale silvicultural intensification in logged dipterocarp forests in Indonesia

    To sustain timber yields from selectively logged tropical forests, silvicultural treatments beyond reduced-impact logging are often recommended but seldom implemented outside of research areas. To determine the extent to which financial constraints justify the reluctance of Indonesian forest industries to intensify their silviculture at operational scales, we develop a series of scenarios to compare the financial viability of enrichment planting along cleared lines through twice logged forest (TPTJ) with the common practice of selective logging alone (TPTI).

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  9. Publication

    Conservation aquaculture: Shifting the narrative and paradigm of aquaculture's role in resource management

    In the 21st century, aquaculture is generally characterized as a foe to conservation efforts. Yet, much has changed in the two seemingly disparate practices over the last two decades, motivating an updated evaluation of the scientific evidence for how aquaculture currently impacts conservation, as well as prospects for further alignment and research.

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  10. Publication

    Monitoring changes in water use efficiency to understand drought induced tree mortality

    Forests are becoming increasingly vulnerable to rising tree mortality rates in response to warming and drought. In California, the most severe drought on record occurred from 2012 to 2016 and high tree mortality rates were observed in response to this prolonged drought. Differences in satellite-derived estimates of water-use efficiency (WUE) under normal (i.e., WUEBASELINE) and drought conditions (ΔWUE = WUE2014 − WUEBASELINE) captured variation in drought resilience, and is used here to understand patterns in tree mortality.

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