32 research outputs found

    Supportive Wind Conditions Influence Offshore Movements of Atlantic Coast Piping Plovers during Fall Migration

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    In advance of large-scale development of offshore wind energy facilities throughout the U.S. Atlantic Outer Continental Shelf (OCS), information on the migratory ecology and routes of federally threatened Atlantic Coast Piping Plovers (Charadrius melodus melodus) is needed to conduct risk assessments pursuant to the Endangered Species Act. We tagged adult Piping Plovers (n = 150) with digitally coded VHF transmitters at 2 breeding areas within the southern New England region of the U.S. Atlantic coast from 2015 to 2017. We tracked their migratory departure flights using a regional automated telemetry network (n = 30 stations) extending across a portion of the U.S. Atlantic Bight region, a section of the U.S. Atlantic coast, and adjacent waters of the Atlantic Ocean extending from Cape Cod, Massachusetts, to Cape Hatteras, North Carolina. Most adults departed within a 10-day window from July 19 to July 29, migrated nocturnally, and over 75% of individuals departed within 3 hr of local sunset on evenings with supportive winds. Piping Plovers migrated offshore directly across the mid-Atlantic Bight, from breeding areas in southern New England to stopover sites spanning from New York to North Carolina, USA, over 800 km away. During offshore migratory flights, Piping Plovers flew at estimated mean speeds of 42 km hr−1 and altitudes of 288 m (range of model uncertainty: 36–1,031 m). This study provides new information on the timing, weather conditions, routes, and altitudes of Piping Plovers during fall migration. This information can be used in estimations of collision risk that could potentially result from the construction of offshore wind turbines under consideration across large areas of the U.S. Atlantic OCS

    Energy injustice and Nordic electric mobility: inequality, elitism, and externalities in the electrification of vehicle-to-grid (V2G) transport

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    Much research on electric mobility transitions has been descriptive or positive, rather than normative or critical, assessing the deeper ethical, justice, or moral issues that arise. To address this gap, this study qualitatively assesses the ongoing transition to Nordic electric vehicles (EVs) and vehicle-to-grid (V2G) systems. It does so through the various lenses of distributive justice, procedural justice, cosmopolitan justice, and recognition justice. It asks: what are the types of injustices associated with electric mobility and V2G? In what ways do emerging patterns of electric mobility worsen socio-environmental risks or vulnerabilities? Based on original primary data collected from 257 experts across Denmark, Finland, Iceland, Norway, and Sweden, the study finds that electric mobility can erode elements of distributive justice for being accessible only to the rich, and for raising risks related to privacy, hacking, and cyberterrorism. Electric mobility may contravene aspects of procedural justice by reinforcing exclusion and elitism in national planning. It can erode cosmopolitan justice by producing negative environmental externalities, and exacerbating rural (and global) vulnerability. It may threaten recognition justice through unemployment, disruption to traditional businesses, and the entrenchment of patriarchy. Thankfully, the study also proposes a suite of policy mechanisms to address many of these concerns

    When is enough, enough? Identifying predictors of capacity estimates for onshore wind-power development in a region of the UK

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    The level of ‘wind-prospecting’ presently occurring in the UK is increasing the likelihood that new wind-power developments will conflict with other existing and/or proposed schemes. This study reports multiple-regression analyses performed on survey data obtained in a region of the UK (i.e. Humberhead Levels, near Doncaster) simultaneously subject to nine wind-farm proposals (September 2008). The aim of the analysis was to identify which survey-items were predictors of respondents' estimates of the number of wind turbines they believed the region could reasonably support (i.e. capacity estimates). The results revealed that the majority of respondents would endorse some local development; however, there was substantial variability in the upper level that was considered acceptable. Prominent predictors included general attitude, perceived knowledge of wind power, community attachment, environmental values, visual attractiveness of wind turbines, and issues relating to perceived fairness and equity. The results have implications for Cumulative Effects Assessment (CEA) – and in particular the assessment of Cumulative Landscape and Visual Impacts (CLVI) – and support calls for greater community involvement in decisions regarding proposed schemes

    The melanocyte lineage in development and disease

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    Melanocyte development provides an excellent model for studying more complex developmental processes. Melanocytes have an apparently simple aetiology, differentiating from the neural crest and migrating through the developing embryo to specific locations within the skin and hair follicles, and to other sites in the body. The study of pigmentation mutations in the mouse provided the initial key to identifying the genes and proteins involved in melanocyte development. In addition, work on chicken has provided important embryological and molecular insights, whereas studies in zebrafish have allowed live imaging as well as genetic and transgenic approaches. This cross-species approach is powerful and, as we review here, has resulted in a detailed understanding of melanocyte development and differentiation, melanocyte stem cells and the role of the melanocyte lineage in diseases such as melanoma
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