LEGAL CONTEXTīats and their roosts are legally protected by domestic and international legislation. The guidance will be further refined and updated in the light of new evidence and user feedback in 2020. (2016)) hereafter referred to as the National Bats & Wind Turbines Project and on the growing body of evidence from European and North American research (see Eurobats Advisory Committee Intersessional Working Group (IWG) on Wind Turbines and Bat Populations reports for annually updated reviews of the evidence base, e.g. The guidance draws on the findings of the Defra-led research Understanding the Risk to European Protected Species (bats) at Onshore Wind Turbine Sites to inform Risk Management (Mathews et al. See also CIEEM (2016) Guidelines for Ecological Impact Assessment in the UK and Ireland: Terrestrial, Freshwater and Coastal. Other chapters in this publication are also relevant. It guides the user through the key elements of survey, impact assessment and mitigation.ġ These include loss roosts, of commuting and foraging habitat and habitat fragmentation and should be considered and addressed as indicated in Chapters 4-9 in Bat Surveys for Professional Ecologists: Good Practice Guidelines 3 rd edition (Collins, 2016 ). It is not intended for use in relation to single wind turbines, micro installations (under 50kW) or offshore wind farms, although some aspects of the guidance may be relevant. It replaces the previous guidance on the subject notably that published by Natural England (TIN051) and chapter 10 of the Bat Conservation Trust publication Bat Surveys: Good Practice Guidelines (2nd edition), (Hundt, 2012) and tailors the generic Eurobats guidance on assessing the impact of wind turbines on European bats (Rodrigues et al. The emphasis is on direct impacts such as collision mortality, but there is reference throughout to the need for a full impact assessment requiring a wider consideration of other (indirect) effects 1. The purpose of this document is to help planners, developers and ecological consultants to consider the potential effects of onshore wind energy developments on bats.
7.1.3 Strategies to reduce mortalities by altering blade rotation.7.1.1 Adjusting the layout of the turbines.Table 3b: Stage 2 - Overall risk assessment.ASSESSING POTENTIAL RISK AND APPLYING MITIGATION 6.4.1 Potential population impacts and Favourable Conservation Status.
Table 2: Level of potential vulnerability of populations of British bat species (Adapted from Wray et al., 2010).Table 1: Percentile score and categorised level of bat activity.QUANTIFYING ACTIVITY AND SPECIES VULNERABILITY 5.2.5 Deployment and testing of automated static bat detectors.5.2.3 Walked transect and vantage point surveys.5.2.2 Automated static surveys at height.
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