Title:

Reactions to human disturbances in an urban population of the swan goose Anser cygnoides in Heidelberg (SW Germany)

Subtitle:

Acta Ornithologica, vol. 38, no. 1 ; Reakcje stada gęsi łabędzionosych na antropogeniczne bodźce zakłócające w warunkach miejskich Heidelbergu (SW Niemcy) ; Disturbances in urban swan geese

Creator:

Randler, Christoph

Contributor:

Polska Akademia Nauk. Muzeum i Instytut Zoologii

Publisher:

Museum & Institute of Zoology

Place of publishing:

Warszawa

Date issued/created:

2003

Description:

Bibliogr. s. 51 ; S. [47]-52 : il. ; 27 cm ; Streszcz. pol. Nazwy taksonów także w jęz. łac.

Type of object:

Czasopismo/Artykuł

Subject and Keywords:

Gęś łabędzionosa -- skutki działalności człowieka -- Niemcy -- Heidelberg [KABA] ; bodźce zakłócające ; reakcje stada ; stawy ; parki miejskie ; kaczkowate ; ptaki ; Anser cygnoides ; Anatidae ; Aves ; 2002

Abstract:

A total of 127 cases of disturbances were recorded, most of them resulting in not-too-serious reactions. An average disturbance affected 25 geese, occurred at 43 m distance to the cause and lasted 31-60 s. Geese feeding prior to the disturbance reacted more strongly than resting ones, and they were more sensitive to disturbances during the hatching and moulting/flightless period. More than fifty percent of the disturbances were caused by dogs — they affected significantly more geese, caused longer durations of disturbances, and probably higher energy costs. There were highly significant positive correlations between a reaction, the duration of a disturbance and the number of geese affected. However, distance to the waterline correlated only with the number of geese affected. Distance to waterline and distance to the source of the disturbance had a high impact on the number of geese affected in a regression model. When disturbances occurred at greater distances, these were more serious, lasted longer and affected more geese. Separate analysis of the dogs demonstrated the influence of dog size (the larger the dog, the greater the disturbance), but not whether it was on a lead. Fleeing into the water was caused by dogs more often than expected. Habituation to an urban environment and predictions for fleeing behaviour are discussed.

Relation:

Acta Ornithologica

Volume:

38

Issue:

1

Start page:

47

End page:

52

Resource type:

Tekst

Detailed Resource Type:

Artykuł

Format:

application/pdf

Source:

MiIZ PAN, patrz sygn. czas. P.257-38-1 ; MiIZ PAN, patrz sygn. czas. P.4568-38-1 ; click here to follow the link

Language:

eng

Rights:

Prawa zastrzeżone - dostęp ograniczony

Terms of use:

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

Digitizing institution:

Muzeum i Instytut Zoologii Polskiej Akademii Nauk

Original in:

Biblioteka Muzeum i Instytutu Zoologii PAN

Projects co-financed by:

Program Operacyjny Innowacyjna Gospodarka, lata 2010-2014, Priorytet 2. Infrastruktura strefy B + R ; Unia Europejska. Europejski Fundusz Rozwoju Regionalnego

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