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Seabird populations drop by half in UK as climate change disrupts foodchain - 0 views

  • Climate change is starving Scotland’s seabirds into a drastic population decline that leaves some species dangerously close to extinction, the RSPB has warned. A major 10-year study by the Westminster Government’s conservation adviser found that the number of common gulls in the UK has fallen by almost half over the last decade. Scarcity of traditional food sources as sea temperatures rise may be forcing them to seek alternatives on land, which may be why residents of some seaside towns have complained that the birds, also called European herring gulls, are becoming more aggressive.
  • In its report, published today, the Joint Nature Conservation Committee (JNCC) says that over a decade the number of breeding kittiwakes has fallen by 40%, while there has been a 38% decline in fulmars. The biggest drop affects the common gull, however, with a 43% reduction in breeding pairs between 1999 and 2009.
  • The JNCC’s Population Trends and Causes of Change 2010 report uses UK-wide figures, with no regional breakdown available, but the RSPB said anecdotal evidence in Scotland seemed to confirm an impact north of the border. “Early reports of seabird breeding performances on RSPB Scotland’s coastal reserves unfortunately seem to reflect this worrying trend, with things particularly tough in the Northern Isles,” said Doug Gilbert, the charity’s Scottish reserves ecologist.
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  • At the RSPB’s Orkney reserve, many kittiwake nests have been found abandoned. Arctic terns have also struggled in the Northern Isles, and failed to breed significantly this year. Gilbert said: “The most likely cause is a lack of food, especially for terns and kittiwakes, which feed on sandeels. “Worryingly, it looks like this problem is being driven by climate change affecting the marine ecosystem from the bottom up.”
  • Although herring gulls are among the most commonly encountered birds in Scottish towns and cities, particularly in coastal areas, they were added to the RSPB’s “red list” of at-risk species last year. The latest 43% decline in their numbers means an overall 25-year fall of at least 70%.
Hunter Cutting

Barnacle goose populations dropping as trapped polar bears hunt goslings - 0 views

  • Polar bears threatening geese as diet ravaged by climate shift Premium Article ! Your account has been frozen. For your available options click the below button. Options Premium Article ! To read this article in full you must have registered and have a Premium Content Subscription with the The Scotsman site. Subscribe Registered Article ! To read this article in full you must be registered with the site. Sign In Register « Previous « Previous Next » Next » View Gallery Published Date: 18 June 2010 By Emily Beament A CONSERVATION success which has seen barnacle geese numbers bounce back from the brink could be under threat from hungry polar bears struggling to cope with cl
  • A CONSERVATION success which has seen barnacle geese numbers bounce back from the brink could be under threat from hungry polar bears struggling to cope with climate change, experts said yesterday. The number of Svalbard barnacle goslings that overwintered in the Solway Firth this year was just half that expected, according to the Wildfowl and Wetlands Trust (WWT).
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  • The conservation group blames polar bears feasting
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  • geese in their summer breeding site, around Spitsbergen, Norway.Researchers, who have photographed bears in the nests and found evidence of "egg raids", say more polar bears are gathering around Spitsbergen and preying on the eggs because a reduction in Arctic ice is making it harder for them to hunt seals.
  • Brian Morrell, a zoologist based at the wildlife centre, said: "Our suspicion is that, as climate change reduces the polar ice-floe, making it harder for the bears to hunt their usual diet of seal, they are being driven by hunger to prey on nest sites.
  • "Obviously it takes a very large quantity of eggs to satisfy an animal as big as a polar bear, especially one with cubs."The impact is that entire nesting areas are being stripped bare of eggs and young, with potentially dire consequences for the geese and wildlife tourism."The bears could threaten the fortunes of the Svalbard barnacle geese population; there were just 300 birds in the 1940s, but now up to 30,000 visit Scotland each winter. The turnaround was the result of a ban on hunting, work on monitoring and the provision of a safe habitat for the geese at Caerlaverock, the WWT said.
  • Trust chief executive Martin Spray said: "It is a tragedy to witness two species of conservation concern clashing over the right to survive, and demonstrates the tensions the natural world is experiencing right now."
Hunter Cutting

Increasing fish stocks in northern North Sea: fisherman - 0 views

  • LIBERAL Democrat Fisheries spokesman and MSP for Orkney Liam McArthur is seeking assurances from the Scottish Government that fisheries scientists and others involved in establishing fish quotas do not penalise fishermen for stock reductions caused by climate change. Research by the Marine Climate Change Impacts Partnership shows climate change is causing some fish species’ distributions to move north, with some stocks having moved as much as 400 km north over the past 30 years.
  • McArthur said: “The reports from fishermen of increasing stocks of cod in the northern North Sea appear compatible with the results of this research. Indeed, the findings of this report further highlight how complex this issue really is.
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