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Rasmus Due Nielsen

Effectiveness of the European Natura 2000 network to sustain a specialist wintering waterbird population in the face of climate change

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  • Dominik Marchowski, Polish Academy of Sciences
  • ,
  • Łukasz Ławicki, West-Pomeranian Nature Society, Poland, Poland
  • Anthony David Fox
  • Rasmus Due Nielsen
  • Ib Krag Petersen
  • Menno Hornman, Sovon Dutch Centre for Field Ornithology, Netherlands
  • Leif Nilsson, Lund University, Sweden
  • Fredrik Haas, Lund University, Sweden
  • Johannes Wahl, Federation of German Avifaunists, Germany
  • Jan Kieckbusch, Ornithological Working Group Schleswig-Holstein, Germany
  • Hans W Nehls, Ornithological Working Group Mecklenburg-Vorpommern, Germany
  • Neil Calbrade, British Trust for Ornithology, United Kingdom
  • Richard Hearn, Wildfowl & Wetlands Trust, United Kingdom
  • Włodzimierz Meissner, University of Gdansk, Poland
  • Niamh Fitzgerald, BirdWatch Ireland, Ireland
  • Leho Luigujoe, Estonian University of Life Sciences, Estonia
  • Marco Zentello, Istituto Superiore per la Protezione e la Ricerca Ambientale, Italy
  • Clemence Gaudard, LPO‐BirdLife France, Fonderies Royales, Rochefort Cedex, France, France
  • Sven Koschinski, Meereszoologie, Germany
Analysis of coordinated Greater Scaup (Aythya marila) count data from the last 30 years showed a 38.1% decrease in wintering numbers in North-West Europe, from 309,000 during 1988–1991 to c.192,300 individuals during 2015–2018. Annual trends in wintering numbers differed throughout the range. Numbers decreased in the UK, Ireland, and in the Netherlands, while numbers were stable in Denmark. Germany, Poland, Sweden, and Estonia showed increasing numbers, suggesting a shift in the distribution of the species within its wintering grounds towards the east and north. Higher
temperatures in northern and eastern areas were correlated with the range shift of the wintering distribution. Deaths from bycatch drowning of Scaup in fishing gear have significantly decreased in recent decades in the Netherlands, where currently the greatest threat is considered the deterioration of food resources. The increasing concentration of wintering Scaup in coastal Poland and Germany (where lack of effective implementation of conservation measures fail to protect the species from the impacts of bycatch and declining food quality) pose major threats to the entire population.
Original languageEnglish
Article number20286
JournalScientific Reports
Number of pages12
Publication statusPublished - Nov 2020

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