Decrease in some Central Norwegian populations of the northern subspecies of the Lesser Black-backed gull (Larus fuscus fuscus) and its possible causes
Kjetil Bevanger and Per Gustav ThingstadArtikkel Engelsk
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*0011553714 *008900725s1990 xx# 000 0 eng *019 $bk *08230$a598 *100 $aBevanger, Kjetil$_97890300 *245 $aDecrease in some Central Norwegian populations of the northern subspecies of the Lesser Black-backed gull (Larus fuscus fuscus) and its possible causes$cKjetil Bevanger and Per Gustav Thingstad *300 $aS. 19-32 : kart *520 $aNorsk sammendrag *700 $aThingstad, Per Gustav$_132727300 *773 $tFauna norvegica. Ser. C$gVol. 13, no. 1 (1990)$x0332-7701$w(NO-LaBS)317575(tnr) *999 $z9000121497$anorart:9000121497 ^