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Tre Insektsinventeringar I Stäppartade Torrängar 2009 Tre insektsinventeringar i stäppartade torrängar 2009 Skalbaggar, gaddsteklar och nattfjärilar Rapport 2010:08 Rapportnr: 2010:08 ISSN: 1403-168X Framsidesbild: Mikael Johannesson Författare och bilder: Se under respektive rapportdel Kartor: © Lantmäteriet Dnr 106-2004/188, om inget annat anges Utgivare: Länsstyrelsen i Västra Götalands län, Naturvårdsenheten Rapporten finns som pdf på www.lansstyrelsen.se/vastragotaland under Publikationer/Rapporter. Innehållsförteckning INLEDNING AV LÄNSSTYRELSEN I VÄSTRA GÖTALANDS LÄN ........................................................ 3 Inventering av skalbaggar i stäppartad torräng 2009 INVENTERING AV SKALBAGGAR I STÄPPARTAD TORRÄNG 2009.................................................... 4 SYFTE.................................................................................................................................................................... 5 URVAL .................................................................................................................................................................. 5 METOD ................................................................................................................................................................. 5 LOKALBESKRIVNINGAR ................................................................................................................................ 6 FALKÖPINGS KOMMUN........................................................................................................................................ 6 OBJEKT: BONDEGÅRDEN 2 - OBJEKT 20320........................................................................................................ 6 OBJEKT: STENHUSGÅRDEN 1 - OBJEKT 20260..................................................................................................... 8 OBJEKT: SVENNAGÅRDEN 4 - OBJEKT 20420.................................................................................................... 10 OBJEKT: SMULA 5 - OBJEKT 20200................................................................................................................... 12 OBJEKT: RAMSTORP - OBJEKT 22020................................................................................................................ 14 OBJEKT: NYA DALA 1 - OBJEKT 21200............................................................................................................. 16 OBJEKT: NYA DALA 10 - OBJEKT 21227........................................................................................................... 18 ULRICEHAMNS KOMMUN................................................................................................................................... 20 OBJEKT: HUMLA SMEDSGÅRDEN 2 - OBJEKT 10450 ......................................................................................... 20 OBJEKT: HUMLA 4 - OBJEKT 10470 .................................................................................................................. 22 OBJEKT: FRÄLSEGÅRDEN 11 - OBJEKT 10620 ................................................................................................... 24 RESULTAT OCH DISKUSSION ..................................................................................................................... 26 ANMÄRKNINGSVÄRDA FYND ............................................................................................................................ 29 RESULTAT – LOKALJÄMFÖRELSER M.M............................................................................................................. 31 REFERENSER.................................................................................................................................................... 35 BILAGA 1. SAMMANSTÄLLNING ÖVER SAMTLIGA FYND AV SKALBAGGAR FÖRDELADE PÅ INVENTERADE LOKALER 2009. .................................................................................................................. 38 Gaddstekelfaunan på stäppartade torrängar i Västergötland 2009 GADDSTEKELFAUNAN PÅ STÄPPARTADE TORRÄNGAR I VÄSTERGÖTLAND 2009.................. 48 SAMMANFATTNING ....................................................................................................................................... 49 BAKGRUND ....................................................................................................................................................... 50 SYFTE ............................................................................................................................................................... 50 METOD.............................................................................................................................................................. 50 STÄPPARTAD TORRÄNG..................................................................................................................................... 52 GADDSTEKLAR.................................................................................................................................................. 53 RESULTAT OCH DISKUSSION ..................................................................................................................... 54 ANTAL ARTER OCH JÄMFÖRELSE MED ANDRA INVENTERINGAR ........................................................................ 54 RÖDLISTADE ARTER .......................................................................................................................................... 56 TRIVIALARE FÅNGST AV BIN ............................................................................................................................. 57 JÄMFÖRELSER MELLAN LOKALERNA................................................................................................................. 60 BEHOV AV YTTERLIGARE INVENTERING OCH FRÅGESTÄLLNINGAR................................................................... 63 FRÅGOR KRING SKÖTSEL................................................................................................................................... 64 NATURVÅRDSINTRESSANTA ARTER AV GADDSTEKLAR..................................................................................... 65 EXEMPEL PÅ ANDRA NATURVÅRDSINTRESSANTA INSEKTER ............................................................................. 72 LOKALBESKRIVNINGAR .............................................................................................................................. 73 LOKAL 1. HUMLA SMEDSGÅRDEN (OBJEKT 10450)........................................................................................... 73 LOKAL 2. HUMLA (OBJEKT 10470).................................................................................................................... 75 LOKAL 3. FRÄLSEGÅRDEN (OBJEKT 10620) ...................................................................................................... 77 LOKAL 4. SMULA (OBJEKT 20200) .................................................................................................................... 79 LOKAL 5. STENHUSGÅRDEN (OBJEKT 20260).................................................................................................... 81 LOKAL 6. BONDEGÅRDEN (OBJEKT 20320) ....................................................................................................... 83 LOKAL 7. SVENNAGÅRDEN (OBJEKT 20420) ..................................................................................................... 85 LOKAL 8. NYA DALA (OBJEKT 21200) .............................................................................................................. 87 LOKAL 9. NYA DALA (OBJEKT 21227) .............................................................................................................. 89 LOKAL 10. RAMSTORP (OBJEKT 22020) ............................................................................................................ 91 REFERENSER.................................................................................................................................................... 93 Inventering av nattfjärilar i stäppartad torräng 2009 INVENTERING AV NATTFJÄRILAR I STÄPPARTAD TORRÄNG 2009............................................... 94 SYFTE.................................................................................................................................................................. 95 URVAL AV LOKALER..................................................................................................................................... 95 LOKALBESKRIVNINGAR .............................................................................................................................. 95 VARHOLMEN, FALKÖPING................................................................................................................................. 95 NOLGÅRDEN, NÄS, FALKÖPING ........................................................................................................................ 96 SVENNAGÅRDEN, FALKÖPING........................................................................................................................... 97 VARTOFTA-ÅSAKA, FALKÖPING ....................................................................................................................... 97 KNÄTTE KULLAR, ULRICEHAMN ....................................................................................................................... 98 METOD ..............................................................................................................................................................
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