Document of bibliographic reference 244115
BibliographicReference record
- Type
- Bibliographic resource
- Type of document
- Journal article
- BibLvlCode
- AS
- Title
- Assessing seabird displacement at offshore wind farms: power ranges of a monitoring and data handling protocol
- Abstract
- Prior to the construction of an offshore wind farm at the Belgian Thorntonbank, local seabird abundance was studied by means of ship-based surveys. ‘Seabirds at sea’ count data, however, exhibit extreme spatial and temporal variation, impeding the detection of human impacts on seabird abundance and distribution. This paper proposes a transparent impact assessment method, following a before–after control–impact design and accounting for the statistical challenges inherent to ‘seabirds at sea’ data. By simulating a broad range of targeted scenarios based on empirical model coefficients, we tested its efficacy in terms of power and investigated how the chance of statistically detecting a change in numbers is affected by data characteristics, monitoring period and survey intensity. Because of high over-dispersion and/or zero inflation, the power to detect a 50% decrease in numbers was generally low, but did reach 90% within less than 10 years of post-impact monitoring for northern gannet (Morus bassanus) and common guillemot (Uria aalge).
- WebOfScience code
- https://www.webofscience.com/wos/woscc/full-record/WOS:000356454000012
- Bibliographic citation
- Vanermen, N.; Onkelinx, T.; Verschelde, P.; Courtens, W.; Van de walle, M.; Verstraete, H.; Stienen, E.W.M. (2015). Assessing seabird displacement at offshore wind farms: power ranges of a monitoring and data handling protocol. Hydrobiologia 756(1): 155-167. http://dx.doi.org/10.1007/s10750-014-2156-2
- Topic
- Marine
- Is peer reviewed
- true