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Residents of marine birds in Scotland continue to decline according to the new statistics published today by Naturescot.
In general, the numbers of marine birds decreased dramatically between 1986 and 2023, while raising numbers around our coast close to half the level of 1986, when regular monitoring began for the first time.
However, short -term trends show that some species seem stable, although they are not at lower levels when the monitoring starts.
The latest Scottish Biological Diversity Index of Navires was prepared by Naturescot using data from the UK marine bird monitoring program.
About 24 species of marine birds in Scotland multiply and the index assess the numbers of reproduction for 11 species, and the success of education for 12 species.
Of the 11 species assessed the breeding numbers in 2023, all of which showed a decrease, as the numbers decreased by 48 % in general.
Arctic Skua continues to show the worst decreases as the numbers have decreased by 83 % since 1986.
It is believed that the shortage of food source, sand snakes, one of the main factors that affect Arctic SkuaWhile the growing predation of the great Skuas was also linked to its decline.
But the short -term trend shows a more positive image of some marine birds. Between 2013 and 2023, three types settled, while black -legged Kittiwake increased, European Shag and the common Guillemot population in the survey sites.
The results of 2023 also showed that the success of reproduction (the number of chicks produced) was around the long term, with 75 % of the 1986 level.
There was a mixed image across 12 species evaluated. Four types-in the Arctic Skua, Kittiwake with black legs, European Shag, and little workshops-have been successful in medium reproduction.
Five types of less than average success in reproduction: ATLANTIC PUFIN, Common Tern, Guillemot, Northern Fulmar, Northern Gannet, while achieving three types of success in the medium: Arctic Tern, Great Skua and Razorbill.
“The sea birds in Scotland are of international importance, and they attract thousands of people to visit our coasts every year, but they face many pressures and threats,” said Simon Foster, an analyst Naturescot Trends.
It is believed that food availability, climate change, fisheries, predation and gas species are believed to contribute to their current declines.
“In recent years, bird flu also has a major impact on many types of sea birds. Developments, such as sea winds abroad, may cause additional pressure on the inhabitants of marine birds already hanging.
“Decally, although it depends on the sea, it reproduces on the ground, and therefore it is relatively easy, compared to other marine life.
“This last indicator clarifies the importance of long -term monitoring to help understand what is happening to our important marine bird residents, and therefore action can be taken whenever possible.”
With the population of Scottish marine birds under pressure from climate change, bird flu and other factors, Naturescot and the Scottish government collected Action plan to preserve the Scottish marine birdsAnd that recently completed a general advice.
Projects like Biomedia for Scotland It combines island organizations and societies and companies to protect the islands of marine birds of international importance in Scotland from non -nasal predators such as mice.
With the support of the Nature Restore Fund in the Scottish government and its leadership RSPB, Scotland, the National Fund in Scotland, the Northern Manara Council and Naturescot, Biotechnology in Scotland is developing sustainable measures and systems to reduce the roads and means through which it is possible to reach an island.
The free certification plan for Predator provides free training and accreditation for boat operators to build biological security in their daily operations.
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