Willow tits survive best with support from a flock

Willow tits (Poecile montanus) generally reside in one territorial area throughout their adult lives. But brutal winters in the north kill off many of them. They aren't able to manage well on their own, and storing seeds ...

Songbirds set long-distance migration record

Researchers at Lund University in Sweden have studied flight routes to determine how far willow warblers migrate in the autumn. The results show that the willow warbler holds a long-distance migration record in the ten-gram ...

Birds' migration genes are conditioned by geography

The genetic make-up of a willow warbler determines where it will migrate when winter comes. Studies of willow warblers in Sweden, Finland and the Baltic States show that "migration genes" differ - depending on where the birds ...

Better use of entire biomass of willow

VTT Technical Research Centre of Finland and Aalto University investigated how willow biomass can be utilised more efficiently. When processed correctly, willow is eminently suitable as a source of sugar in the production ...

Could contaminated land actually be good for trees?

The very act of tolerating some forms of soil pollution may give trees an advantage in the natural world, says University of Montreal plant biologists. Their findings were published this week in BMC Plant Biology.

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