Biologisk Mangfold I Ålesund
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Innhold INNHOLD................................................................................................................................. 1 1 SAMMENDRAG................................................................................................................ 5 1.1 BAKGRUNN OG FORMÅL............................................................................................................... 5 1.2 METODER ..................................................................................................................................... 5 1.2.1 Rødlistearter, signalarter og norske ansvarsarter ............................................................................... 6 1.2.2 Skjøtsel og forvalting............................................................................................................................ 6 1.2.3 Verdiklassifisering................................................................................................................................ 6 1.2.4 Hemmelige opplysninger...................................................................................................................... 6 Tabell 1: Naturtyper som ble kartlagt i Ålesund............................................................................................. 7 Tabell 2: Alfabetisk oversikt over viktige og prioriterte områder................................................................... 7 Tabell 3: Alfabetisk oversikt over lokalt viktige områder ............................................................................... 8 2 INNLEDNING.................................................................................................................. 10 2.1 NATURGRUNNLAGET I ÅLESUND .............................................................................................. 11 3 GENERELT OM NATURTYPENE .............................................................................. 12 3.1 GAMMEL FURUSKOG, KYSTFURUSKOG..................................................................................... 12 3.2 HASSELRIK VARMEKJÆR SKOG (RIK EDELLAUVSKOG)............................................................. 12 3.3 BEKKEKLØFTER, BERGVEGGER OG ELVEBREDDER................................................................... 13 3.4 GRÅOR-HEGGESKOG ................................................................................................................ 13 3.5 GAMMEL LAUVSKOG, OSP ....................................................................................................... 13 3.6 GAMMEL LAUVSKOG, BJØRK ................................................................................................... 14 3.7 KUSYMRE-ALMESKOG (RIK EDELLAUVSLOG) .......................................................................... 14 3.8 GRÅOR-ALMESKOG (RIK EDELLAUVSKOG)............................................................................... 14 3.9 SVARTORSKOG OG ASKESKOG (RIK EDELLAUVSKOG).............................................................. 15 3.10 SUMPSKOG (RIK SUMPSKOG/GAMMEL LAUVSKOG).................................................................. 15 3.11 EIKESKOG (RIK EDELLAUVSKOG/GAMMEL EDELLAUVSKOG) .................................................. 15 3.12 VANN OG VASSDRAG ................................................................................................................ 16 3.13 INTAKT LAVLANDSMYR/RIKMYR ............................................................................................. 16 3.14 KULTURLANDSKAP................................................................................................................... 16 3.15 HAVSTRAND, STRANDBERG, ELVEOS OG GRUNTVANNSOMRÅDER.......................................... 17 3.16 FJELLOMRÅDENE...................................................................................................................... 17 4 SIGNALARTER OG RØDLISTEARTER ÅLESUND................................................ 18 4.1 OM SIGNALARTENE ..................................................................................................................... 18 Tabell 4: Forslag til signalarter i ulike naturtyper i Ålesund ....................................................................... 19 4.1.1 Kommentarer til noen lavarter........................................................................................................... 21 4.1.2 Kommentarer til noen sopparter ........................................................................................................ 22 4.2 RØDLISTEDE ARTER OG NORSKE ANSVARSARTER ...................................................................... 23 Tabell 5: Forekomst av nasjonalt rødlistede arter........................................................................................ 23 Tabell 6: Forekomst av vedboende rødlistearter fordelt på treslag.............................................................. 27 Tabell 7: Noen av rødlisteartane i en internasjonal sammenheng................................................................ 27 4.3 KOMMENTARER TIL NOEN RØDLISTEDE FUGLEARTER................................................................ 28 4.4 KOMMENTARER TIL KARPLANTER: ............................................................................................. 31 5 OMRÅDEBESKRIVELSER, PRIORITERTE LOKALITETER.............................. 32 01 AKSLEN-MAGERHOLM ................................................................................................................ 32 02 AKSLENAKKEN ............................................................................................................................ 33 03 BJØRGEMYRENE .......................................................................................................................... 33 04 BLOMBAKKANE ........................................................................................................................... 34 05 BOTNEN-NØRINGEN .................................................................................................................... 34 06 EIKENOSA-YSTEBØEN ................................................................................................................. 35 1 07 EITRÅNA ...................................................................................................................................... 35 08 EMBLEMSFJELLET........................................................................................................................ 35 09 HESSEBERG-SÆTREHEIA ............................................................................................................. 36 10 KVERVENESET-KVERVEAKSLA-FJELLSENDEN ........................................................................... 37 11 LERSTADVATNET......................................................................................................................... 38 12 MELSVATNET .............................................................................................................................. 39 13 RAMBJØRA-KAMBANE-LYSLØYPA ............................................................................................. 39 14 RAMSKREDHAMRANE-HØGELIA ................................................................................................. 40 15 RAMSVIKA-STORKLEIVA............................................................................................................. 40 16 RATVIKVATNET........................................................................................................................... 41 17 RØSSEVOLLVATNET, ØST FOR ..................................................................................................... 41 18 RØSSEVOLLVATNET, NORD FOR .................................................................................................. 41 19 STOVEDALSELVA......................................................................................................................... 42 20 SVARTEVATN............................................................................................................................... 42 21 TUENESET, VEST FOR STORSKARET ............................................................................................ 43 22 VASSTRANDELVA (KVENNANESELVA)....................................................................................... 43 23 VASSTRANDLIA ........................................................................................................................... 43 6 KULTURLANDSKAP...................................................................................................... 45 6.1 SAMANDRAG .............................................................................................................................. 45 6.2 INNLEIING................................................................................................................................... 46 6.3 MATERIALE OG METODAR.......................................................................................................... 46 6.3.1 Utval av lokalitetar, forarbeid ........................................................................................................... 46 6.3.2 Feltarbeid........................................................................................................................................... 46 6.3.3 Namnsetjing av artar, dokumentasjon................................................................................................ 46 6.3.4 Områdeskildring ...............................................................................................................................