There is a good article in the Guardian (here) about research done by Northampton University’s Landscape and Biodiversity Research Group showing that bees use hedgerows to navigate around the countryside.
Of course we already know how crucial bees are for pollinating crops in general, and how disastrous it will be if our bee populations continue to fall. It may provide a lot of low-wage employment if we have to hand-polliinate our future crops, but large parts of our food chain are at risk if we lose the pollinating insects. It is also well known that hedges provide a good environment for insects, bees, and mammals and birds (who are often drawn there by the aforementioned flying and crawling animals as well as by the ground cover).
But it is fascinating to have proof that bees also use hedges as navigation routes. This is significant because it has also been shown that flowering plants close to hedges are more succesful at reproducing (especially those near to a meeting point of hedgerows). It’s yet more proof that the role of hedges in our landscape goes way beyond their heritage and aesthetic importance.