Favoriser la reproduction des Petits Gravelots dans les gravières et

!"#$%&'()*)+,-.&'/"')0&)+,1'0$2(31&)2$122&)0&2)43-51&32)&()0$)67("')
!"#$%&"'(#)&'$*'+#(,*'(*'$#'-.,/#0.)',./#)(*'*)'.,)%12.$.3%*4'5#,'6$*7&#)(,#'!)8#7.9%+4':;<='
O. Gi!iéron#
O. Gi!iéron#
'
'
'
>6?@!ABC!'D6'!CE!@FGHIA@J'FCB'89:;:<)=>?@9AB:<))
F6JB'DCB'K!6?AC!CB'CI'DCB'H6!!AC!CB'
vogelwarte.ch®
))A9)89:;:)=>?@9AB:C)A,B;<9?D)!9<)=>9@9<)
!&2#31E/"')0$)E&/()43-5&+"()
'
D*'5*01'3,#9*$.1'*&1'L)'$%/%+.$*'M5*01'"+2#&&%*,N4'$OL)'(*&',#,*&'P'&*',*5,.(L%,*'*)+.,*'*)'
BL%&&*Q'A$'*&1'L)'/%3,#1*L,'RL%'9%1'+2*S').L&'*)1,*'/#,&'*1'.+1.T,*Q))
)
;+)2,-41()0,$'&)&2EF#&)&')0-'4&3)0,&G/'#/"')H$1)67'7I#1&)0,$')2(-($()E31"31(-13&)0-'2)+&2)
%&2$3&2)0&)#"'2&35-/"'J)
I#%$$*'U'/.%)*#LQ'
E$L/#3*'U'+,V50RL*'T,L)4'T$#)+'*1').%,Q''
B%3)*'(%&0)+0-'U'+.)1.L,'(*'$WX%$'8#L)*Q'
J.L,,%1L,*'U'%)&*+1*&4'$#,9*&4'#,#%3)"*&4'/.$$L&RL*&'*1'+,L&1#+"&Q'
Y%9*,)#3*'U'6-,%RL*Q'
J%('U'L)*'5*01*'+L9*Z*'(W*)9%,.)'<;'+/'(*'(%#/[1,*4'+,*L&"*'P'/\/*'$*'&.$4'#3,"/*)1"*'
(*'5*01&'+#%$$.L]'*1'T,%)(%$$*&Q'F[&'$#'/%^#9,%$4'='XL-&'/%/"0RL*&'&.)1'5.)(L&'P'%)1*,9#$$*&'
(*'_`'2*L,*&'*1'+.L9"&'(L,#)1'_^='&*/#%)*&Q')
E.L&&%)&'U'$*&'5.L&&%)&'&.)1',*+.L9*,1&'(*'(L9*1'P'$#')#%&&#)+*'*1'RL%Z*)1'1.L1'(*'&L%1*'$*')%('5.L,'&*').L,,%,'&*L$&'&.L&'$#'
5,.1*+0.)'(*&'#(L$1*&Q'A$&'#+RL%[,*)1'$*L,'%)("5*)(#)+*'RL*$RL*&'8.L,&'#5,[&'$*L,'*)9.$4'_'&*/#%)*&'5$L&'1#,(Q'
H./5.,1*/*)1'5#,0+L$%*,'U'$.,&RLWL)'2.//*4'L)'+2%*)'.L'#L1,*'5,"(#1*L,'&W#55,.+2*'(*&'5.L&&%)&4'$*&'5*01&'3,#9*$.1&'
&%/L$*)1'L)*'T$*&&L,*'P'$W#%$*'RLW%$&'-.)1'5*)(,*'*)'&*'1,#a)#)1'#L'&.$'*1'*)'$#)b#)1'(*&'+,%&'5$#%)0-&'*1'(*'("1,*&&*Q'D*'TL1'
*&1' (W#c,*,' $W%/5.,1L)' 9*,&' *L]' #d)' (*' $*' ("1.L,)*,' *1' $W"$.%3)*,' (*&' 5.L&&%)&Q' G)*' -.%&' $*' (#)3*,' "+#,1"4' $*&' 5*01&'
3,#9*$.1&' ,*1.L,)*)1' 9*,&' $*L,&' 5.L&&%)&' ,*&1"&' +#+2"&Q' H*' +./5.,1*/*)14' ,"9"$#)1' $*' &1,*&&' (*&' .%&*#L]4' #/[)*'
$W.T&*,9#1*L,'P'5#&&*,'&.)'+2*/%)'*1'P',*&5*+1*,'L)*'(%&1#)+*'&Le&#)1*'#9*+'$*&'5*01&Q'
KL#+&)-''$&+)0$)E&/()43-5&+"()
M-61(-()'-($3&+)0&)'101I#-/"')
D*&' *f*+0-&' (L' 5*01' 3,#9*$.1' .)1' "1"' *&0/"&' P' g;h<<;'
+.L5$*&'*)':;<_Q'@)'1,.L9*'$W*&5[+*'5,%)+%5#$*/*)1'&L,'$*'
E$#1*#L'*1'(#)&'$*&'3,#)(*&'9#$$"*&'iL9%#$*&'(*&'6$5*&Q'C$$*'
)%+2*'$*'$.)3'(*&'i*L9*&'*1'(*&'&L,-#+*&'(*'3,#9%*,'+,""*&'
5#,'$W2.//*Q''
>7E-3//"')0$)E&/()43-5&+"()&')<$122&)
vogelwarte.ch®
''
:LE&2)0&2)21(&2)
'''''3,#9%[,*&'M__jN''''''
'''''&%1*&')#1L,*$&''M`<jN'''''''''''''''''
'''''1.%1&4'&%1*&'%)(L&1,%*$&'M`jN'
)
K"$+&$32)
''''')%(%d+#0.)&'+*,1#%)*&'''''''''''
''''')%(%d+#0.)&'5,.T#T$*&'
O. Gi!iéron#
O. Gi!iéron#
D*&' 3,[9*&' #$$L9%#$*&' ("5.L,9L*&' (*' 9"3"1#0.)' 2#L1*4'
5",%.(%RL*/*)1' ,#8*L)%*&' 5#,' $*&' +,L*&4' .f,*)1' L)'
T%.1.5*'(*'5,"(%$*+0.)'#L]'5*01&'3,#9*$.1&Q'
'
C)'BL%&&*4'5,[&'(*'g;j'(*'$W*)&*/T$*'(*&'S.)*&'2L/%(*&4'
(.)1'$*&'&%1*&'#$$L9%#L]'-#9.,#T$*&'#L]'5*01&'3,#9*$.1&4'.)1'
(%&5#,LQ' DW*)(%3L*/*)1' (*&' +.L,&' (W*#L' *&1' $#' 5,%)+%5#$*'
/*)#+*' RL%' 5[&*' &L,' +*&' "+.&V&1[/*&' *1' $*&' 5*01&'
3,#9*$.1&' &LT%&&*)1' (%,*+1*/*)1' $#' 5*,1*' (*&' &L,-#+*&'
3,#9*$*L&*&Q' D#' (*&1,L+0.)' (*&' )%(&' (L*' #L]' #+09%1"&' (*'
$.%&%,&' #%)&%' RL*' (W#L1,*&' -#+1*L,&' (*' (",#)3*/*)1&' &.)1'
"3#$*/*)1'&.L,+*&'(*'/*)#+*&Q'
))A9<)=>?@;9>9<C)M?N;:?:<)!9)<DN<:;:D:;BO)
A&2)43-51F3&2C)$'&)#P-'#&)Q))
)
D*&' *f*+0-&' )%+2*L,&' (*&' 5*01&' 3,#9*$.1&' .)1' +.)&%(",#T$*/*)1' (%/%)L"' 8L&RLW*)' <g`;' *)' ,#%&.)' (*' $O*)(%3L*/*)1' (*&'
3,#)(&' +.L,&' (O*#L' *1' $#' (%/%)L0.)' (*&' S.)*&' #$$L9%#$*&Q' E#,#$$[$*/*)14' $W*]5#)&%.)' (*' $W%)(L&1,%*' (W*]5$.%1#0.)' (*'
3,#)L$#1&'#' .L9*,1'(*' 9#&1*&'&%1*&' 5,"&*)1#)1'(*&' &L,-#+*&'5,.+2*&' (*'&.)' /%$%*L'.,%3%)*$4' +*'RL%' #'5*,/%&' P'$W*&5[+*' (*'
&W"1#T$%,'(#)&'$*&'3,#9%[,*&'([&'<g``Q'H*&').L9*#L]'T%.1.5*&4'RL%',*5,"&*)1*)1'#L8.L,(W2L%'L)'0*,&'(*&'&%1*&'(*')%(%d+#0.)4'
.)1'*)3*)(,"'L)*')*Z*'#L3/*)1#0.)'(*'$#'5.5L$#0.)Q''
'
D*&' "$"/*)1&' &L%9#)1&' .)1' 1.L1*-.%&' +.)(L%1' $W*&5[+*' P' L)' ).L9*#L' ("+$%)' (*5L%&' $*&' #))"*&' <gg;Q' H$#&&"' #L5#,#9#)1'
+.//*'.%&*#L'9L$)",#T$*4'$*'5*01'3,#9*$.1'*&1'("&.,/#%&'+.)&%(","'+.//*'*&5[+*'*)'(#)3*,Q''
'
95"+$/"')0&2)21(&2)U'$*&'/.(%d+#0.)&',#5%(*&'.++#&%.))"*&'5#,'$*&'1,#9#L]4'$*',*/T$#V#3*'*1'$*&'%)9#&%.)&'9"3"1#$*&'&.)1'
(*&'+#L&*&'(*'("&*,0.)'(*'$W*&5[+*Q''
!&2(3$#/"')0&2)'102)U'$#'5",%.(*'+,%0RL*'&*'&%1L*'&L,1.L1'(L,#)1'$#'+.L9#%&.)Q'D*'/%/"0&/*'(*&'XL-&'*&1'1*$'RL*'$*&')%(&'
&.)1' 5,*&RL*' %)9%&%T$*&4' 5,.9.RL#)1' $*L,' (*&1,L+0.)' 5#,' $*&' 9"2%+L$*&' *1' $*&' 5%"0)*/*)1&Q' G)*' -.%&' "+$.&4' $*&' 5.L&&%)&'
,*&1*)1'9L$)",#T$*&'#L]'5#&&#3*&'(*&'9"2%+L$*&'8L&RLWP'$*L,'*)9.$Q''
!73-'4&%&'(2) R) $*&' 5*01&' 3,#9*$.1&' &W#(#51*)1' ,*$#09*/*)1' T%*)' #L]' 5#&&#3*&' (*&' 9"2%+L$*&4' /#%&' $*&' (",#)3*/*)1&'
,"5"1"&'P'5,.]%/%1"'(L')%(4'&L,1.L1'P'5%*(4'#/[)*)1'$*&'.%&*#L]'P'#T#)(.))*,'$#'+.L9#%&.)'.L'$*'&%1*Q''
<1(&2) 0&) '101I#-/"') U' $*&' 3,#9%[,*&' P' $#' /.,52.$.3%*' 5$L&' ,"3L$%[,*' *1' 2./.3[)*' RL*' $*&' S.)*&' #$$L9%#$*&'
.)1'5.L,'*f*1'(W#++,.a1,*'$#'9%&%T%$%1"'(*&'.%&*#L]'*1'(*&'XL-&'-#+*'#L]'5,"(#1*L,&Q''
'
@"(3&)-10&)&2()0"37'-5-'()&22&'/&++&)E"$3)-22$3&3)+-)2$351&)0&)+S&2EF#&)*)+"'4)(&3%&J)A&2)43-51F3&2C)&')E-3/#$+1&3C)"'()$')
3T+&)'"')'74+14&-6+&)*)U"$&3)E-3)+&)%-1'/&')&()+S&'(3&/&'C)5"13&)+-)#37-/"')0SP-61(-(2)0&)2$62/($/"'J)
8-L2-4&)-3/I#1&+)V-5"3-6+&)
H*&' 5#V&#3*&' *1' T%.1.5*&' RL*' -.,/*)1' $*&' 3,#9%[,*&' &.)1' #Z,#V#)1&' 1#)1' 5.L,' $*&' 5*01&' 3,#9*$.1&' )%+2*L,&' RL*' 5.L,' $*&'
.%&*#L]'/%3,#1*L,&'*)'*&+#$*4'*)'5#,0+L$%*,'(W#L1,*&'*&5[+*&'(*'$%/%+.$*&'&%'(*&'5$#)&'(W*#L'&.)1'5,"&*)1&Q'6'$*L,'#,,%9"*'*)'
/#,&4'$*&'5*01&'3,#9*$.1&',*+2*,+2*,.)1'(*&'1*,,#%)&'#++L*%$$#)1&'5.L,'V'+.)+*9.%,'$*L,')%(Q''
':&33-1'2)V-5"3-6+&2)-$G)'101I#-/"'2J)
9')47'73-+)$')#"$E+&)2,7(-6+1()0-'2)
#P-#$'&)0&2)E-3/&2J))
6d)'(W"9%1*,'RL*' $*&'5*01&'3,#9*$.1&' )*'&W"1#T$%&&*)1' (#)&'(*&'&*+1*L,&'*)' #+09%1"4'%$'+.)9%*)1' (*'$*&' %)+%1*,'P'&W%)&1#$$*,'
(#)&' (*&' S.)*&' 5*L' .L' ).)^*]5$.%1"*&' 5#,' $#' +,"#0.)' (*' &L,-#+*&' #c,#)1*&' P' $*L,&' V*L]Q' B%' (*&' */5$#+*/*)1&' ).)'
*]5$.%1"&'&.)1'("8P'*]%&1#)1&'*1'&L&+*50T$*&'(W#++L*%$$%,'$W*&5[+*4'%$'&Le1'(*'$*&'5,"&*,9*,'(*&'5%"0)*/*)1&'*1'(*'+.)+*9.%,'
(*&'5#&&#3*&' (W*)3%)&'M+-Q' 5.%)1'<' +%^(*&&.L&NQ'A-)#"%%$'1#-/"')&'(3&)+&2)3&2E"'2-6+&2)0&)43-51F3&2C)+&2)&%E+"L72)&()
-$(3&2)$/+12-(&$32)0&2)21(&2)&2()E31%"301-+&J)
WJ))?%7'-4&3)0&2)X"'&2)(3-'H$1++&2)
?%7'-4&3) L)*' "1*)(L*' 5$#)*' (*' 3,#9%*,&4' %("#$*/*)1'
<W;;;' /:' .L' 5$L&Q' C)' 3,#9%[,*&' &[+2*&4' +,*L&*,' RL*$RL*&'
/#,*&'RL%'&*,.)1'#$%/*)1"*&'5#,'$#'5$L%*Q'
'
!7I'13) 0&2) E12(&2) 0&) E-22-4&2) 0&) #-%1"'2) +.)1.L,)#)1'
$*&'S.)*&'(*',*5,.(L+0.)'*1'&WV'1*)%,Q'D*'5#&&#3*'P'5%*('&*'
-*,#'"3#$*/*)1'5#,'+*&'+2*/%)&Q''
'
<7#$312&3)+-)X"'&)*)'+,"#)1' L)*'L)*' TLZ*'3,#9*$*L&*' .L'
*)'("$%/%1#)1' $#'&L,-#+*' 5#,'RL*$RL*&'T$.+&' *,,#0RL*&'+*'
RL%'*/5\+2*,#'$*'5#&&#3*'(*&'9"2%+L$*&'M+%^(*&&.L&NQ''
O10) Y?@B>;<9>)A9)89:;:)=>?@9AB:)
Z[ZB>?O!DZ)\Z;]?@>;A)^)Z;]?B_:`)
D#' 9"3"1#0.)' *)9#2%1' ,#5%(*/*)1' $*&' &L,-#+*&' ).)'
*]5$.%1"*&'RL%'&.)1'#%)&%'("$#%&&"*&'5#,'$*&'5*01&'3,#9*$.1&Q'
F#)&' $*&' &*+1*L,&' P' -#9.,%&*,4' %$' +.)9%*)1' (*' &L55,%/*,'
+*Z*' +.L9*,1L,*' 9"3"1#$*4' #9*+' (*&' /.V*)&' /"+#)%RL*&'
*1' ).)' +2%/%RL*&Q' D#' /#%)1*)%,' P' L)' )%9*#L' -#%T$*4' (*'
/#)%[,*' +$#%,&*/"*4' 5*L1' 1.L1*-.%&' #9.%,' $W#9#)1#3*'
(W#c,*,' $*&' %)&*+1*&' (.)1' $*&' 5*01&' 3,#9*$.1&' *1' #L1,*&'
.%&*#L]'&*').L,,%&&*)1Q''
G)' 1*,,#%)' #55,.5,%"' (.%1' \1,*' T%*)' ("3#3"4' (")L"' (*'
9"3"1#0.)' *1' 5,"&*)1#)1' L)*' &1,L+1L,*' (*' /.&#kRL*' *)'
,*$%*-' (.)1' $*' &LT&1,#1' +.)0*)1' (*&' #$$L9%.)&' (*'
3,#)L$./"1,%*'9#,%"*Q'
'
D*&' 5*01&' 3,#9*$.1&' #55,"+%*)1' L)' 5,.d$' (*' 1*,,#%)'
#++%(*)1"4'$"3[,*/*)1'9#$$.))"'*1'+./5.,1#)1'(*&'5*01*&'
("5,*&&%.)&Q' D*&' &%/5$*&' */5,*%)1*&' $#%&&"*&' 5#,' $*' 1,#d+'
(*&'9"2%+L$*&' &.)1'&Le&#)1*&Q' H*$#',*)-.,+*' $#'(%&+,"0.)'
(*&' 5*01&' 3,#9*$.1&' *1' (*&' )%(&' $.,&' (*' $#' +.L9#%&.)Q' D*&'
8L9")%$*&'V'1,.L9*)1'(*&'+#+2*Z*&'*)'+#&'(*'(#)3*,'*1'$*&'
5#,*)1&'5,.d1*)1'(*&'5*01*&'(L)*&'5.L,'$*&'&L,9*%$$*,Q'
aJ))Z-1'/&')0&2)2$3V-#&2)
<$62(3-()&()(&33-1')-07H$-(2))
))KBO<9;A<)8BD>)Y?@B>;<9>)A?)>98>B!DK:;BO)!D)89:;:)=>?@9AB:)
vogelwarte.ch®
A&2)%&2$3&2)#1]0&22"$2)2"'()*)-##"%E+13)&'(3&)-"b()&()%-32)\&')0&P"32)0&)+-)E731"0&)0&)'101I#-/"'`)
J*'5#&'*)1,*,'(#)&'$*&'&*+1*L,&'(*')%(%d+#0.)'5,"("d)%&Q'
'
DW%)1*,(%+0.)' (W#++[&' #L]' 5*,&.))*&' ).)' #L1.,%&"*&' *&1' P'
-#%,*' ,*&5*+1*,4' "3#$*/*)1' 5.L,' #&&L,*,' $#' &L,9%*' (L' 5*01'
3,#9*$.1Q'
'
H.)1#+1'*)'+#&'(W.T&*,9#0.)'(L'5*01'3,#9*$.1'U''
?<=N))
?22"#1-/"')2$122&)0&)+,1'0$2(31&)0&2)=3-51&32)&()0$)N7("')
N$6&'6&34E+-(X)cC)deWW)N&3'&)
:7+J)R)edW)daf)af)af)
O10)
1 / 4 100%
La catégorie de ce document est-elle correcte?
Merci pour votre participation!

Faire une suggestion

Avez-vous trouvé des erreurs dans linterface ou les textes ? Ou savez-vous comment améliorer linterface utilisateur de StudyLib ? Nhésitez pas à envoyer vos suggestions. Cest très important pour nous !