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Cropping on the Machair
| 'Machair' is one of the rarest
habitats in Europe. This distinctive coastal grassland is found only in north
and west Scotland and western Ireland. The soil is mixed with wind-blown shell
sand and is traditionally enriched with seaweed gathered from the beaches. The
machair is often the main area of cultivation and may include grassland pasture,
hay meadow, rotational arable and wetlands. The departure from traditional
cropping, increased use of fertilisers and pesticides and more intensive stocking
with sheep have led to a decline in the variety of plants and the characteristic
animal species they support. The practice of leaving an area fallow for
a couple of years while another area is cultivated allows annual and short-lived
plants to germinate, flower and set seed. This helps to create the spectacular
display of flowers for which the machair is well known, and very varied and rich
habitats for other wildlife. Machair supports high numbers of breeding
waders including oystercatcher, lapwing, ringed plover, redshank dunlin and snipe.
It is also a critical habitat for corncrake. Earthworms, snails and flies, spiders,
harvestmen and various bees are commonly found over the herb-rich machair. Northern
colletes bee
Found on the western seaboard of Scotland, notably the
Outer Hebrides, this bee is usually associated with extensively grazed flower
rich grassland. It depends upon banks of bare sandy soil in which it makes its
burrows so machair areas are ideal habitat. Such banks and other areas of bare
soil within herb rich dune grassland may be under-valued, and the bee populations
limited by their occurrence. Photo: Mike Edwards - SNH |