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Great Cormorant Phalacrocorax carbo


DK: Skarv, D: Kormoran, NL: Aalscholver

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(A) Overall trend in the International Wadden Sea

(B) Trends in the different countries compared
 
(C) Denmark

(D) Schleswig-Holstein
 
(E) Niedersachsen

(F) The Netherlands

 

 

Trends for Great Cormorant in the Wadden Sea
Figures represent the trend 1987/1988 to 2005/2006, taking into account data from all months to express an overall trend for the entire year. Numbers on the y-axis represent monthly mean occurrences. Dots are the individual yearly estimates, solid lines the trend calculated by TrendSpotter, dotted lines the 95% confidence limits of the trend lines.
 
  Summary trends

Area

Period

 1987/88 - 2005/06 1996/97 - 2005/06

(A) and (B) International Wadden Sea

 ++ +

(C) Denmark

 ++ F

(D) Schleswig-Holstein

 ++ +

(E) Niedersachsen

 ++ +

(F) The Netherlands

 ++ +
  ++ strong increase; + moderate increase; 0 stable; - moderate decrease; -- strong decrease; F - uncertain
 
Source:
 
JMMB 2007. Trends of migratory and wintering waterbirds in the Wadden Sea 1987/88-2005/06.
www.waddensea-secretariat.org, Wilhelmshaven Germany.
 


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