ISSN: 2450-8330
eISSN: 2353-3013
OAI
DOI: 10.18276/ab.2018.25-09
Issue archive /
No. 25
Long-term changes in the numbers of waterbirds at an important European wintering site
| Authors: |
Dominik
Marchowski
Ornithological Station, Museum and Institute of Zoology, Polish Academy of Sciences. Łukasz Ławicki West Pomeranian Nature Society Sebastian Guentzel West Pomeranian Nature Society Jacek Kaliciuk West Pomeranian Nature Society Zbigniew Kajzer West Pomeranian Nature Society |
| Keywords: | Natura 2000 protected areas Ducks Swans Geese climate change Odra River Estuary NW Poland wetlands |
| Data publikacji całości: | 2018 |
| Page range: | 12 (111-122) |
Abstract
Waterbirds were regularly monitored in north-western Poland from 2002 to 2018. Counts took
place in the most important areas where wintering waterbirds concentrate in this region, the
most important wintering ground for this group of birds in Poland and one of the most important
in Europe. In addition to the wintering function, this area also has a very important function
as a stopover site for significant numbers of African-Eurasian Flyway migrants. The average
number of all waterbirds covered by the study from 2002 to 2018 was 117,000. Numbers in
recent years (2011–2018) have increased significantly (P < 0.001) compared to the first half
of the study (2002–2010). The most important species found here during the non-breeding
period were: Greater Scaup Aythya marila (mean number for 2002–2018: 20,600), Tufted Duck
A. fuligula (26,700), Common Pochard A. ferina (1,500), Smew Mergellus albellus (1,400),
Goosander Mergus merganser (7,700), Great Crested Grebe Podiceps cristatus (840), Eurasian
Coot Fulica atra (8,400), Mute Swan Cygnus olor (1,100), Whooper Swan C. cygnus (890), Bean
Goose Anser fabalis (13,000) and White-fronted Goose A. albifrons (6,500). The importance
of this region at the European scale for migratory and wintering waterbirds has increased, and
this presents new challenges to the institutions responsible for protecting these areas.
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