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The National (Scotland)
The National (Scotland)
National
Ross Hunter

Endangered red squirrels in Highlands to be helped with citizen science project

PEOPLE living in the Highlands are being asked to take part in a major citizen science study as part of a pioneering red squirrel reintroduction project.

The research is being carried out by charity Trees for Life this autumn as part of a successful rewilding initiative.

So far, Trees for Life has established 10 new red squirrel populations in the Highlands.

Over the past six years, the charity has reintroduced a total of almost 200 squirrels at sites across the north, including Spinningdale, Golspie, Shieldaig, Kinlochewe and Plockton.

With Scotland the UK’s last remaining stronghold of the endangered native species, these reintroductions have helped to significantly bolster the north’s red squirrel population.

The charity now want to find out how far these relocated reds have spread out from their initial release sites, and about the total size and range of the Highland region’s entire population.

The public is being called on to report current and historic squirrel sightings via the Saving Scotland’s Red Squirrels website.

Each reported sighting will be fed into a large dataset, supplementing in-person survey work that Trees for Life will carry out later this year.

Autumn is the best time to see a red squirrel as the animals collect food to store for the winter. Picture: SCOTLAND: The Big PictureBecky Priestley with a trapped red squirrel

Becky Priestley, red squirrel project manager at Trees for Life, said: “Citizen science is a fantastic way to gather information about wildlife populations, especially across a large area like the Highlands.

“By reporting sightings, local people can provide invaluable information that will help us to ensure a better future for red squirrels.

“By filling the gaps in knowledge about where this endangered species is found, we can create an up-to-date distribution map to use as a baseline for future monitoring and to identify where future releases could make a positive difference.”

While similar studies have been carried out in other parts of the UK and Ireland, this will be the first Highland-specific survey, covering a total land area of more than 25,000 square kilometres.

Trees for Life has divided the region into five square kilometre quadrants, or plots, and hopes to gather sightings records from as many areas as possible, while also drawing on data from other wildlife professionals who work in woodlands.

Priestley added that the charity would physically search any areas where no sightings are recorded by the public. She said: “Any plots that don’t return records will need to be physically surveyed to check for evidence of red squirrel presence, by searching for feeding signs. But in areas with low numbers of squirrels, this can be like looking for a needle in a haystack!

“Public sightings reports give us good, hard evidence of squirrel presence – so we are calling on people to get behind this survey and help us to gather as much information as we can.”

Red squirrels live in woodlands where there is a good variety of tree species for them to feed on, including Scots pine, larch, hazel, oak and beech.

Autumn is the best time of year to spot a squirrel, as they are busy collecting food to store for the winter.

The new study will also feed into the Big Scottish Squirrel Survey, an annual survey that gathers data on the status of reds and also the non-native grey squirrels across Scotland.

Since being introduced to the UK in the 1870s, the grey squirrel has spread throughout most of the country, decimating red squirrels through competition for food and disease. Trees for Life has been working to rewild the Scottish Highlands since the early 1990s, which includes returning lost native wildlife to the landscape.

The charity has been carefully relocating reds from Inverness-shire and Moray to suitable woodlands in the north west where they can spread, safe from the threat of grey squirrels.

Those eager to get involved can visit the Saving Scotland’s Red Squirrels website.

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