Assessing Cumulative Exposure of Northern Gannets to Offshore Wind Farms

ABSTRACT Offshore wind farms are rapidly being permitted along the Atlantic Coast of the United States. Exposure of northern gannet (Morus bassanus) to multiple wind farms could affect the population because gannets are vulnerable to both displacement and collision. A critical question is whether wi...

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Main Authors: M. Wing Goodale, Anita Milman
Format: Article
Language:English
Published: Wiley 2020-06-01
Series:Wildlife Society Bulletin
Subjects:
Online Access:https://doi.org/10.1002/wsb.1087
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author M. Wing Goodale
Anita Milman
author_facet M. Wing Goodale
Anita Milman
author_sort M. Wing Goodale
collection DOAJ
description ABSTRACT Offshore wind farms are rapidly being permitted along the Atlantic Coast of the United States. Exposure of northern gannet (Morus bassanus) to multiple wind farms could affect the population because gannets are vulnerable to both displacement and collision. A critical question is whether wind‐farm siting decisions can reduce cumulative exposure of gannets. We quantified how 3 different wind‐farm siting scenarios would cumulatively expose gannets. Two independent gannet abundance data sets were used to ensure robustness of the analysis: 1) individual tracking data from birds captured in the mid‐Atlantic region of the United States from 2012–2015 and 2) relative abundance models developed by the National Oceanic and Atmospheric Administration from surveys conducted from 1978–2014 along the Atlantic Coast of the United States. Our results indicate that for initial development, projects sited close to shore and in shallow areas exposed gannets at the greatest rates; however, no siting scenario effectively avoided exposing gannets because of the birds’ broad distribution across the outer continental shelf. These findings suggest that gannets will be cumulatively exposed regardless of siting scenario and management actions should focus on efforts to minimize adverse effects at each wind farm rather than avoiding exposure through siting decisions. © 2020 The Wildlife Society.
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spelling doaj-art-976aab87efc74e62ab581909e554454b2025-08-20T02:36:22ZengWileyWildlife Society Bulletin2328-55402020-06-0144225225910.1002/wsb.1087Assessing Cumulative Exposure of Northern Gannets to Offshore Wind FarmsM. Wing Goodale0Anita Milman1Department of Environmental Conservation University of Massachusetts at Amherst, 210 Holdsworth Hall Amherst MA 01003‐9285 USADepartment of Environmental Conservation University of Massachusetts at Amherst, 210 Holdsworth Hall Amherst MA 01003‐9285 USAABSTRACT Offshore wind farms are rapidly being permitted along the Atlantic Coast of the United States. Exposure of northern gannet (Morus bassanus) to multiple wind farms could affect the population because gannets are vulnerable to both displacement and collision. A critical question is whether wind‐farm siting decisions can reduce cumulative exposure of gannets. We quantified how 3 different wind‐farm siting scenarios would cumulatively expose gannets. Two independent gannet abundance data sets were used to ensure robustness of the analysis: 1) individual tracking data from birds captured in the mid‐Atlantic region of the United States from 2012–2015 and 2) relative abundance models developed by the National Oceanic and Atmospheric Administration from surveys conducted from 1978–2014 along the Atlantic Coast of the United States. Our results indicate that for initial development, projects sited close to shore and in shallow areas exposed gannets at the greatest rates; however, no siting scenario effectively avoided exposing gannets because of the birds’ broad distribution across the outer continental shelf. These findings suggest that gannets will be cumulatively exposed regardless of siting scenario and management actions should focus on efforts to minimize adverse effects at each wind farm rather than avoiding exposure through siting decisions. © 2020 The Wildlife Society.https://doi.org/10.1002/wsb.1087avoidance mitigationcumulative effectsexposuremitigationMorus bassanusnorthern gannet
spellingShingle M. Wing Goodale
Anita Milman
Assessing Cumulative Exposure of Northern Gannets to Offshore Wind Farms
Wildlife Society Bulletin
avoidance mitigation
cumulative effects
exposure
mitigation
Morus bassanus
northern gannet
title Assessing Cumulative Exposure of Northern Gannets to Offshore Wind Farms
title_full Assessing Cumulative Exposure of Northern Gannets to Offshore Wind Farms
title_fullStr Assessing Cumulative Exposure of Northern Gannets to Offshore Wind Farms
title_full_unstemmed Assessing Cumulative Exposure of Northern Gannets to Offshore Wind Farms
title_short Assessing Cumulative Exposure of Northern Gannets to Offshore Wind Farms
title_sort assessing cumulative exposure of northern gannets to offshore wind farms
topic avoidance mitigation
cumulative effects
exposure
mitigation
Morus bassanus
northern gannet
url https://doi.org/10.1002/wsb.1087
work_keys_str_mv AT mwinggoodale assessingcumulativeexposureofnortherngannetstooffshorewindfarms
AT anitamilman assessingcumulativeexposureofnortherngannetstooffshorewindfarms