Habitat and nest site selection in the Common Gull Larus canus in southern Poland: significance of man-made habitats for conservation of an endangered species

Skórka, Piotr; Martyka, Rafał; Wójcik, Joanna D; Babiarz, Tomasz; Skórka, Janusz

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Habitat and nest site selection in the Common Gull Larus canus in southern Poland: significance of man-made habitats for conservation of an endangered species

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Title: Habitat and nest site selection in the Common Gull Larus canus in southern Poland: significance of man-made habitats for conservation of an endangered species

Abstrakt:

The Common Gull is a rare and endangered breeding species at inland habitats in Poland as well as in some other countries in Europe. Breeding biology, habitat and nest site selection were studied in this species in southern Poland. Almost all birds nested on industrial water bodies (gravel pits, sedimentation basins), although fishponds and reservoirs were the most abundant habitat in the study area. Birds built their nests mainly on islets, man-made constructions and dry land on the shores of water bodies. The islets occupied by birds were smaller and were covered by lower vegetation than the unoccupied ones. When occupied islets on industrial water bodies were compared with a random sample of islets on fishponds, the latter were found to be larger, with taller and denser vegetation. This may explain why Common Gulls did not breed on fishponds in southern Poland. Shore-breeding birds nested in open areas with sparse vegetation, occupying sites with less vegetation cover and closer to shrubs or trees than randomly selected points. Breeding performance (mean date of clutch initiation, clutch size, clutch volume, hatching success and breeding success) did not differ among nests built on islets, man-made constructions or on the shores of the water bodies. Breeding success was more than twice as high as in large riverine colonies. Industrial water bodies may become important alternative breeding habitats for this species in Poland.

Czasopismo/Seria/cykl:

Acta Ornithologica

Tom:

Zeszyt:

Strona pocz.:

137

Strona końc.:

144

Szczegółowy typ zasobu:

Czasopismo

Format:

application/pdf

Identyfikator zasobu:

oai:rcin.org.pl:65688

Źródło:

MiIZ PAN, sygn. P.4568 ; MiIZ PAN, sygn. P.257 ; click here to follow the link

Język:

eng

Język streszczenia:

pol ; eng

Prawa:

Prawa zastrzeżone - dostęp ograniczony

Zasady wykorzystania:

Zasób chroniony prawem autorskim. Korzystanie dozwolone wyłącznie na terminalach Muzeum i Instytutu Zoologii PAN w zakresie określonym przez przepisy o dozwolonym użytku.

Lokalizacja oryginału:

Biblioteka Muzeum i Instytutu Zoologii PAN

Dostęp:

Zamknięty

Subject and keywords:

breeding biology common gull habitat selection larus canus man-made habitats nest sites nest size

Object collections:

Last modified:

Oct 2, 2020

In our library since:

Jun 15, 2018

Number of object content downloads / hits:

All available object's versions:

https://rcin.org.pl./publication/75760

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Acta Ornithologica
- Acta Ornithologica Musei Zoologici Polonici
- Acta Ornithologica

Edition name	Date
Habitat and nest site selection in the Common Gull Larus canus in southern Poland: significance of man-made habitats for conservation of an endangered species	Oct 2, 2020