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Mercury poses a rising threat to Arctic birds
ivory gull
Concentrations of mercury in ivory gull feathers increased nearly 50-fold in 130 years.

Contaminant may be the cause of ivory gull declines

Rising exposure to mercury could be the cause of rapid declines in Arctic bird populations, particularly ivory gulls, according to new research.

Ivory gull populations have fallen by more than 80 per cent in Canada since the 1980s, leaving just 400-500 breeding pairs. However, the reasons for this are not well understood.

Biologists from Canada's University of Saskatchewan aimed to find out whether contaminants are to blame by analysing the burden of methyl mercury in feathers over the past 130 years.

Using feathers from museum specimens spanning 1877-2007, researchers found concentrations of mercury had increased nearly 50-fold, despite no evidence of dietary change during this period.

Writing in the Proceedings of the Royal Society of London B- Biological Sciences, the authors say: "Methyl mercury (MeHG) in ivory gull feathers increased significantly over the past 130 years, despite the lack of evidence of a shift in diet.

"We attribute this increase to increases in the amount of mercury (HG) in the environment that has been observed post-industrially and attributed to human activity."

With oceanic mercury expected to rise four-fold between 2005-2050, the findings have prompted concerns about continued dramatic declines in ivory gull  populations, as well as other high-latitude species.

For the full report, visit: http://rspb.royalsocietypublishing.org/content/282/1805/20150032

Image © jomilo75/Wikimedia Commons/CC BY 2.0

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Government to run free webinars on exporting horses

News Story 1
 The UK government has announced that it will be running two free webinars for horse owners and exporters, explaining what steps to take to export horses from 1 January 2021.

The first webinar will take place on Tuesday 20 October 2020, from 9.30am to 11am. It will cover Export Health Certificate (EHC) requirements from 1 January 2021. Click here to register.

The second webinar will take place on Wednesday 4 November 2020, from 10.30am to 12pm. This session will focus on the steps that businesses need to take to export equines from the UK to the EU. Click here to register.

For more information on exporting horses and ponies after 1 January 2021, please visit the gov.uk website. 

Click here for more...
News Shorts
More cases of African swine fever confirmed in Germany

More cases of African swine fever (ASF) have been confirmed in wild boar in Germany.

According to Pig World, 20 outbreaks have been identified in two districts - Brandenburg, where the original case confirmed on September 10 was found, and near the town of Neuzelle, some 7.5 km away.

The finding represents a further seven cases confirmed by Germany's Friedrich-Loeffler Institute. A Central Crisis Team has been established to coordinate the response to the outbreak.