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Bats and wind power – investigations required for risk assessment in Denmark and Sweden

Publikation: Bidrag til bog/antologi/rapportKonferenceabstrakt i proceedingsForskning

Standard

Bats and wind power – investigations required for risk assessment in Denmark and Sweden. / Ahlén, Ingemar; Baagøe, Hans J.

Book of abstracts : Conference on Wind Power and Environmental Impacts Stockholm 5-7 February. Stockholm : Naturvårdsverket, 2013. s. 30 (Sweden. Naturvaardsverket. Rapport, Bind 6546).

Publikation: Bidrag til bog/antologi/rapportKonferenceabstrakt i proceedingsForskning

Harvard

Ahlén, I & Baagøe, HJ 2013, Bats and wind power – investigations required for risk assessment in Denmark and Sweden. i Book of abstracts : Conference on Wind Power and Environmental Impacts Stockholm 5-7 February. Naturvårdsverket, Stockholm, Sweden. Naturvaardsverket. Rapport, bind 6546, s. 30, Conference on Wind Power and Environmental Impacts, Stockholm, Sverige, 05/02/2013.

APA

Ahlén, I., & Baagøe, H. J. (2013). Bats and wind power – investigations required for risk assessment in Denmark and Sweden. I Book of abstracts : Conference on Wind Power and Environmental Impacts Stockholm 5-7 February (s. 30). Stockholm: Naturvårdsverket. Sweden. Naturvaardsverket. Rapport, Bind. 6546

Vancouver

Ahlén I, Baagøe HJ. Bats and wind power – investigations required for risk assessment in Denmark and Sweden. I Book of abstracts : Conference on Wind Power and Environmental Impacts Stockholm 5-7 February. Stockholm: Naturvårdsverket. 2013. s. 30. (Sweden. Naturvaardsverket. Rapport, Bind 6546).

Author

Ahlén, Ingemar ; Baagøe, Hans J. / Bats and wind power – investigations required for risk assessment in Denmark and Sweden. Book of abstracts : Conference on Wind Power and Environmental Impacts Stockholm 5-7 February. Stockholm : Naturvårdsverket, 2013. s. 30 (Sweden. Naturvaardsverket. Rapport, Bind 6546).

Bibtex

@inbook{3f0637bdfe0d4411bd112785425151a6,
title = "Bats and wind power – investigations required for risk assessment in Denmark and Sweden",
abstract = "Ingemar Ahl{\'e}n1 & Hans J. Baag{\o}e21Department of Ecology, SLU, Box 7002 (Natur icum), SE-750 07Uppsala, Sweden, ingemar.ahlen@slu.se2Natura l History Museum of Denmark, Zoological Museum,Universitetsparken 15, DK-2100 Copenhagen {\O}, DenmarkBats and wind power – investigations required for risk assessment inDenmark and SwedenWe experienced an urgent need among authorities and consultancies to getclear guidelines for planning and field investigations at suggested wind parks.Certain minimum conditions must be fulfilled concerning evaluation of theproject area, timing of investigations etc. to provide data necessary for ameaningful risk assessment.We prepared “Guidelines for bat investigations prior to wind projects” fordistribution to authorities. Recommendations were based on our research onbat ecology and behaviour at wind power installations and our many years ofexperience of bat occurrence and behaviour in the landscape. To avoid misunderstandingsour guidelines are detailed and carefully argumented, but onlythe headline contents can be given here:Current knowledge justifies an introductory classification of project areasinto three categories: 1. high risk sites, 2. uncertain but possible, 3. low riskalready documented. Only category 2 needs field investigations, while 1 shouldbe stopped and 3 can go on. This will speed up the planning process and minimizeexpensive field investigations to the areas in most need of risk assessments.Field investigations require studies on activity and species compositionin a project area also including suitable colony habitats and hunting siteswithin a radius of at least 2 km. Methods include automatic registration,detector listening etc. to ensure data on species presence, number of observationsand facts on activity and status. Investigations are obligatory for thefollowing periods: A) At least two separate nights in the breeding season (lateJune – early August), B) two nights in mid-August to mid-September whenbats migrate or disperse. C) If certain “key habitats” are suspected with massoccurrence of insects in spring, two additional nights of investigation arerequired in late April – May.We warn that it is difficult to predict bat activity at wind turbines beforethey are built. At certain weather conditions turbines may attract huge massesof insects and bats are able to discover such new food resources even if theyoccur far out in “non-bat areas”. This also occurs in the breeding season.Investigations and risk assessments should be carried out by independentbat specialists with high competence. All data and conclusions must be presentedwith open access.Post-construction surveys and stop regulation are suggested for cases withremaining uncertainty about risks.",
author = "Ingemar Ahl{\'e}n and Baag{\o}e, {Hans J.}",
year = "2013",
month = "2",
language = "English",
isbn = "978-91-620-6546-1",
series = "Sweden. Naturvaardsverket. Rapport",
pages = "30",
booktitle = "Book of abstracts",
publisher = "Naturv{\aa}rdsverket",
note = "Conference on Wind Power and Environmental Impacts ; Conference date: 05-02-2013 Through 07-02-2013",

}

RIS

TY - ABST

T1 - Bats and wind power – investigations required for risk assessment in Denmark and Sweden

AU - Ahlén, Ingemar

AU - Baagøe, Hans J.

PY - 2013/2

Y1 - 2013/2

N2 - Ingemar Ahlén1 & Hans J. Baagøe21Department of Ecology, SLU, Box 7002 (Natur icum), SE-750 07Uppsala, Sweden, ingemar.ahlen@slu.se2Natura l History Museum of Denmark, Zoological Museum,Universitetsparken 15, DK-2100 Copenhagen Ø, DenmarkBats and wind power – investigations required for risk assessment inDenmark and SwedenWe experienced an urgent need among authorities and consultancies to getclear guidelines for planning and field investigations at suggested wind parks.Certain minimum conditions must be fulfilled concerning evaluation of theproject area, timing of investigations etc. to provide data necessary for ameaningful risk assessment.We prepared “Guidelines for bat investigations prior to wind projects” fordistribution to authorities. Recommendations were based on our research onbat ecology and behaviour at wind power installations and our many years ofexperience of bat occurrence and behaviour in the landscape. To avoid misunderstandingsour guidelines are detailed and carefully argumented, but onlythe headline contents can be given here:Current knowledge justifies an introductory classification of project areasinto three categories: 1. high risk sites, 2. uncertain but possible, 3. low riskalready documented. Only category 2 needs field investigations, while 1 shouldbe stopped and 3 can go on. This will speed up the planning process and minimizeexpensive field investigations to the areas in most need of risk assessments.Field investigations require studies on activity and species compositionin a project area also including suitable colony habitats and hunting siteswithin a radius of at least 2 km. Methods include automatic registration,detector listening etc. to ensure data on species presence, number of observationsand facts on activity and status. Investigations are obligatory for thefollowing periods: A) At least two separate nights in the breeding season (lateJune – early August), B) two nights in mid-August to mid-September whenbats migrate or disperse. C) If certain “key habitats” are suspected with massoccurrence of insects in spring, two additional nights of investigation arerequired in late April – May.We warn that it is difficult to predict bat activity at wind turbines beforethey are built. At certain weather conditions turbines may attract huge massesof insects and bats are able to discover such new food resources even if theyoccur far out in “non-bat areas”. This also occurs in the breeding season.Investigations and risk assessments should be carried out by independentbat specialists with high competence. All data and conclusions must be presentedwith open access.Post-construction surveys and stop regulation are suggested for cases withremaining uncertainty about risks.

AB - Ingemar Ahlén1 & Hans J. Baagøe21Department of Ecology, SLU, Box 7002 (Natur icum), SE-750 07Uppsala, Sweden, ingemar.ahlen@slu.se2Natura l History Museum of Denmark, Zoological Museum,Universitetsparken 15, DK-2100 Copenhagen Ø, DenmarkBats and wind power – investigations required for risk assessment inDenmark and SwedenWe experienced an urgent need among authorities and consultancies to getclear guidelines for planning and field investigations at suggested wind parks.Certain minimum conditions must be fulfilled concerning evaluation of theproject area, timing of investigations etc. to provide data necessary for ameaningful risk assessment.We prepared “Guidelines for bat investigations prior to wind projects” fordistribution to authorities. Recommendations were based on our research onbat ecology and behaviour at wind power installations and our many years ofexperience of bat occurrence and behaviour in the landscape. To avoid misunderstandingsour guidelines are detailed and carefully argumented, but onlythe headline contents can be given here:Current knowledge justifies an introductory classification of project areasinto three categories: 1. high risk sites, 2. uncertain but possible, 3. low riskalready documented. Only category 2 needs field investigations, while 1 shouldbe stopped and 3 can go on. This will speed up the planning process and minimizeexpensive field investigations to the areas in most need of risk assessments.Field investigations require studies on activity and species compositionin a project area also including suitable colony habitats and hunting siteswithin a radius of at least 2 km. Methods include automatic registration,detector listening etc. to ensure data on species presence, number of observationsand facts on activity and status. Investigations are obligatory for thefollowing periods: A) At least two separate nights in the breeding season (lateJune – early August), B) two nights in mid-August to mid-September whenbats migrate or disperse. C) If certain “key habitats” are suspected with massoccurrence of insects in spring, two additional nights of investigation arerequired in late April – May.We warn that it is difficult to predict bat activity at wind turbines beforethey are built. At certain weather conditions turbines may attract huge massesof insects and bats are able to discover such new food resources even if theyoccur far out in “non-bat areas”. This also occurs in the breeding season.Investigations and risk assessments should be carried out by independentbat specialists with high competence. All data and conclusions must be presentedwith open access.Post-construction surveys and stop regulation are suggested for cases withremaining uncertainty about risks.

M3 - Conference abstract in proceedings

SN - 978-91-620-6546-1

T3 - Sweden. Naturvaardsverket. Rapport

SP - 30

BT - Book of abstracts

PB - Naturvårdsverket

CY - Stockholm

T2 - Conference on Wind Power and Environmental Impacts

Y2 - 5 February 2013 through 7 February 2013

ER -

ID: 100221185