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2010, DMP, SeaGen Strangford Lough, Detecting Changes in Relative Bird Abundances using Strangford Narrows Visual Observations

2010, DMP, SeaGen Strangford Lough, Detecting Changes in Relative Bird Abundances using Strangford Narrows Visual Observations

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Birds

Description

Statistical analyses were conducted for the Strangford bird sighting data. One set of analyses
is presented for terns exclusively, another for the remaining bird species combined. The analyses were to quantify the fluctuations in bird abundances with environmental and
temporal conditions (e.g. tidal or seasonal effects), as well as potential effects associated
with the MCT turbine installation and operation. Both the terns and remaining bird species exhibited strong seasonal and tidal fluctuations in
relative abundance. There is evidence of a possible displacement of the general bird species out of an area
immediately adjacent to the turbine installation. There is however no evidence of an overall
decline in relative bird abundances for the survey region, with some other areas exhibiting a
relative increase. There is evidence of lower relative tern abundances, for the days that the turbine is in
operation. Tern abundance has however increased significantly overall within the survey
region, over the course of the study. This series contains one report detailing the analyses.

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