Tree sparrow numbers are declining, hit by changes in agriculture, and are found only in odd isolated pockets.

Despite the generally gloomy conditions there were isolated pockets in which some insects and butterflies thrived, including the chalkhill blue and dark green fritillary.

And the dry, warm weather has also been good for fruits such as berries, apples and pears, although some growers were hit by isolated pockets of frost recently.

Isolated pockets of wilderness are of limited use - they need corridors of nature connecting larger areas of wild.

They are all isolated pockets of similar alpine ecosystems with similar fauna and flora.