Upper Rhine presentation

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1. Ecological enhancement of agriculturalland in the Upper Rhine Plain11. September 2012Richard Bleil - Jessica Gelhausen - Dr. Rainer Oppermann Arno Schanowski - Dr. Volker SpthSupported by 2. BackgroundGermany:16.8 Mio ha agricultural area At least 1.75 Mio ha of crops that profit from insect pollinationwikimediaEcological enhancement of agricultural land in the Upper Rhine Plain 11. Septemeber 2012 2 3. Ecologicalenhancement measuresFlower strips and areasEffect on pollinators? Ecological enhancement of agricultural land in the Upper Rhine Plain11. Septemeber 2012 3 4. The project area The farm in Rheinmnster: Enhancement area Control area Ecological enhancement of agricultural land in the Upper Rhine Plain11. Septemeber 2012 4 5. The project area Crops in 2010 in the planned enhancement area Corn Cereals Fallow OtherEcological enhancement of agricultural land in the Upper Rhine Plain 11. Septemeber 2012 5 6. Sampling 2010Determination of status quosweep-netting and observation on transectsgrass ways and flower rich meadows / marginal structuresMay - August Wild bees ButterfliesEcological enhancement of agricultural land in the Upper Rhine Plain 11. Septemeber 2012 6 7. Ecologicalenhancements in 2011 Tbinger Mischung10 % Flower strips Visselhveder Insektenparadies MEKA 1 Kultur-Natur-blht-auf Ecological enhancement of agricultural land in the Upper Rhine Plain11. Septemeber 2012 7 8. Ecologicalenhancements in 2011Bee banks and nesting aids Ecological enhancement of agricultural land in the Upper Rhine Plain11. Septemeber 2012 8 9. Sampling 2011 Observation and sweep-netting on transects Focus on flower strips, June August Observation of behaviour (foraging / egg deposition) Search for nests in bee banksEcological enhancement of agricultural land in the Upper Rhine Plain 11. Septemeber 2012 9 10. Results ButterfliesRheinmnster Dettenheim Total number of species (2010) 16 16 Species in flower strips (2011)12 14Ecological enhancement of agricultural land in the Upper Rhine Plain 11. Septemeber 2012 10 11. ResultsWild beesRheinmnster DettenheimSpecies in flower strips 48 54Total number of species 2010 55 58Individuals in flower strips4000 3992Individuals 2010234 244Ecological enhancement of agricultural land in the Upper Rhine Plain 11. Septemeber 2012 11 12. Results Butterflies No substancial increase in species richness Flower strips predominantly used for foraging Almost exclusively ubiquitous species Inachis io Gonepteryx rhamni Pieris rapaeEcological enhancement of agricultural land in the Upper Rhine Plain 11. Septemeber 2012 12 13. Results Wild bees No substancial increase in species richness Few rare species and specialists use the flower strips Enormously increased individual numbers Bee banks are used as nesting sitesBombus lapidarius Bombus terrestrisOxybelus trispinosusEcological enhancement of agricultural land in the Upper Rhine Plain 11. Septemeber 2012 13 14. Conclusions Flower strips are intensively used and constitute effective means of supporting local pollinator populations Floristic diversity and resource availability early in the year are crucial for the promotion of faunal diversity / specialistsEcological enhancement of agricultural land in the Upper Rhine Plain 11. Septemeber 2012 14 15. Prospect Diverse perennial mixtures have been chosen and sown considering needs of endangered species Control areas will be examined in detail for comparation This years data are being evaluated Enhancement areaControl area Ecological enhancement of agricultural land in the Upper Rhine Plain11. Septemeber 2012 15 16. Thank you very much for your attention11. September 2012Richard Bleil - Jessica Gelhausen - Dr. Rainer Oppermann Arno Schanowski - Dr. Volker SpthSupported by