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Gulls can spread weeds over large distances and between habitats

A study from the Doñana Biological Station has developed a seed dispersal model based on the movement of gulls monitored by GPS telemetry, while feeding in rice fields in Andalusia, South-West Spain.
Modelling shows that gulls can disperse weeds over large distances and between different hábitats, causing the exchange of weed and alien plant species between agricultural crops and natural areas.