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Fig. 4 | BMC Ecology and Evolution

Fig. 4

From: Evidence for multiple introductions of an invasive wild bee species currently under rapid range expansion in Europe

Fig. 4

Reported European occurrences of Megachile sculpturalis until 2018. Records were derived from literature and verified citizen science programs (iNaturalist ©, info fauna CSCF, observation.org, GBIF©, naturgucker.de, insecte.org), including indicated sample groups from South-France (yellow circle), France (green circle), Switzerland (blue circle) and Vienna (brown circle). The map was created with QGIS for the present study

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