Studie visar humlor känsliga för vägtrafik

En ny studie från Lunds universitet visar att ökad trafik på vägarna leder till färre humlebon i vägkanterna. Undersökningen omfattade 60 platser i Skåne.

Studien, som finansierats av Trafikverket och publicerats i Biological Conservation, undersökte sambandet mellan trafikmängd och humlors förekomst.

Doktorand Sofia Blomqvist konstaterade att längs de minst trafikerade vägarna hittades knappt några döda humlor. Vid runt 4 000 fordon per dygn var antalet döda humlor högre än levande under inventeringarna.

Blomrika vägkanter längs mindre vägar fungerar som attraktiva boplatser, medan inga humlebon hittades längs sträckor med normal trafik.

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