Birds in southern Öresund in relation to the wind farm at ... - Vattenfall

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Lillgrund Despite the marginal differences in large-scale distribution of the geographical pattern of migrating flocks between pre- and post-construction years showed above, there were more marked differences for Lillgrund at the local scale. In 2001, pre-construction of the wind farm, 11 % of the overall migration volume passed the 3x3 km area covering the wind farm area to be and the very close surroundings of this. In the two years with the wind farm in operation, 2008 and 2009, the corresponding proportion was 2-3 % (Fig. 52). In other words the proportion of flocks passing through the wind farm area decreased with 78 %. % of all echoes (flocks) 20 15 10 5 0 År 2001 År 2008 Year år 2009 Fig. 54. The proportion of bird echoes (flocks) passing Lillgrund (3x3 km covering the wind farm area and its closest surroundings) in autumn 2001 pre- (filled bar) and 2008, 2009 post- (open bars) construction of the wind farm at Lillgrund (see Fig. 7 and 51). Andelen fågelekon (flockar) med sydvästliga flygriktningar registrerade med radar som passerade över själva Lillgrundsområdet under höstarna 2001 (före etablering av vindkraftparken på Lillgrund, grå staplar) och 2008, 2009 (efter att parken tagits i drift, vita staplar), (se Fig. 7 och 51). As in spring the decrease in the proportion of flocks passing Lillgrund in autumn was almost the same during day and at night (Fig. 55). 74
% av alla ekon (flockar) 20 15 10 5 0 2001 2008 År 2009 75 Day-time Night-time Fig. 55. The proportion of bird echoes (flocks) passing Lillgrund (3x3 km covering the wind farm area and its closest surroundings) in autumn 2001 pre- (filled bar) and 2008, 2009 post- (open bars) construction of the wind farm at Lillgrund during day time (filled bars) and at night (open bars). Andelen fågelekon (flockar) med sydvästliga flygriktningar registrerade med radar som passerade över själva Lillgrundsområdet under höstarna 2001 (före etablering av vindkraftparken på Lillgrund) och 2008, 2009 (efter att parken tagits i drift) på dagen (vita staplar) och natten (grå staplar).
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Birds in southern Öresund in relat
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Contents Summary 4 Svensk sammanfat
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the birds and/or the flocks, the be
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Metoder Inventeringarna av rastande
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Alfågel (Fig. 14-19) Alfågeln öv
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Liksom vid andra inventeringar av r
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Introduction Southern Öresund is a
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Lillgrund is situated in the southe
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had to be made with only one observ
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Fig. 5. Map of the southern part of
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Fig. 6 . Map over the wind farm at
Page 23 and 24: transect was divided into 10 km lon
Page 25 and 26: Results Staging and wintering birds
Page 27 and 28: Table.3 Percentage of the total num
Page 29 and 30: Cormorant Phalacrocorax carbo As is
Page 31 and 32: Fig. 10. Summary distribution maps
Page 33 and 34: Overall Jacob’s index (D) for the
Page 35 and 36: Long-tailed Duck Clangula hyemalis
Page 37 and 38: ehind the large variation is that f
Page 41 and 42: Common Eider Somateria mollissima T
Page 47 and 48: Jacobs Index Jacobs Index 1 0,5 0 -
Page 49 and 50: 2500 2000 1500 1000 500 0 MIN MEAN
Page 51 and 52: Fig. 30. Details of Fig. 29 to show
Page 53 and 54: large-scale changes in abundance ar
Page 55 and 56: 600 500 400 300 200 100 0 MIN MEAN
Page 59 and 60: Jacobs Index Jacobs Index 1 0,5 0 -
Page 61 and 62: Lillgrund and the wind farm are sit
Page 63 and 64: The spring migration season, and he
Page 65 and 66: % of all echoes (flocks) 45 40 35 3
Page 71 and 72: irds given the assumptions used abo
Page 73: % of all echoes (flocks) % of all e
Page 77 and 78: species, some species being better
Page 79 and 80: area and from a Dutch farm show tha
Page 81 and 82: distance from the farm, although mo
Page 83 and 84: Literature Alerstam, T. 1972. Noctu
Page 85: Petersen, I. K. & Fox A. D. 2007. C
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Birds in southern Öresund in relation to the wind farm at ... - Vattenfall

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