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Jahresbericht 1999 - Biologische Station im Kreis Wesel e.V. (BSKW)

Jahresbericht 1999 - Biologische Station im Kreis Wesel e.V. (BSKW)

Jahresbericht 1999 - Biologische Station im Kreis Wesel e.V. (BSKW)

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!&<br />

=DHAI>AHE?DJ '''<br />

AIJAH )KAHD=> @AI >AHI?DMAKCI>AHAE?DI @AI<br />

4DAEI M=H @=I .HJFB=KCIAHCA>EI CACA>AH @A<br />

>AE@A 8H=DHA A@?D MAIAJE?D DDAH I @= @AH<br />

E HAEI 9AIA AHEJJAJA KCLCA=JAE =<br />

/AI=J>AIJ=@ >AE B=IJ =C ,=I AJJA = @=II<br />

@EA /H=KC=I>AIJ@A AEA KCLCA=JAE E @EAIAH<br />

0DA =KBMEAIA M=H E =DH ''# /H=BE <br />

Jungvogelanteil (%)<br />

40<br />

35<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

1980<br />

Graugans<br />

Nilgans<br />

1982<br />

1984<br />

1986<br />

1988<br />

1990<br />

1992<br />

1994<br />

1996<br />

1998<br />

/H=BE DHE?DA KCLCA=JAEA Jahr >AE /H=K K@ EC=I = 7JAHA<br />

EA@AHHDAE '& '''<br />

,EA /AI=J=D @AH BCCA CAMH@AA KCLCA =C<br />

EJ I?DJKCIMAEIA & 1@ELE@KA AE?DJ >AH @A<br />

8H=DH HAE?DJA =>AH E?DJ =KI K @EA<br />

/H=KC=I=C@IJHA?A @AI =C@=DHAI ''&'' L !!%<br />

Anzahl<br />

2000<br />

1750<br />

1500<br />

1250<br />

1000<br />

750<br />

500<br />

250<br />

0<br />

1979<br />

Brutpaare<br />

Individuen<br />

1981<br />

1983<br />

1985<br />

1987<br />

1989<br />

Jahr<br />

1991<br />

1993<br />

1995<br />

1997<br />

/H=BE -JME?KC @AI /H=KC=I*AIJ=@AI E HAEI 9AIA<br />

'%' '''<br />

<strong>1999</strong>

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