Subtitle:

Acta Ornithologica, vol. 37, no. 1 ; Charakterystyka miejsc i środowisk lęgowych miejskiej populacji kawek w Rzymie ; Nest sites of jackdaws in Rome

Contributor:

Polska Akademia Nauk. Muzeum i Instytut Zoologii

Publisher:

Muzeum i Instytut Zoologii PAN

Place of publishing:

Warszawa

Description:

Bibliogr. p. 18 ; P. [15]-19 : ill. ; 27 cm ; Abstract in Polish. Taxa in Latin

Type of object:

Journal/Article

Abstract:

Nest sites and habitat features of the area around nests in a population of Jackdaws breeding in the centre of Rome, Italy was studied. Occupied nests (n = 41) had a predominant south-east exposition and were placed on average 20 ą 8 m above the ground. The availability of suitable holes positively influenced the size of breeding colonies. The preference of SE exposure of nest holes could be affected by the winter wind which blows from NW directions. To describe habitat conditions at 20 nesting areas of the Jackdaws in Rome, in comparision with 14 randomly selected sites from the same area 25 variables in plots within a 28.8 ha area were measured. Built-up districts covered on average 77% and 78% of total surface in occupied plots and in random plots, respectively. Ruderal areas covered 5% of total area in occupied plots and 0.4% in random ones, wooded areas - 20% and 12%. Stepwise discriminant function analysis carried out on habitat variables in nesting areas and random plots provided a model based on the proportion of ruderal areas and gardens that correctly classified 90% of cases. Jackdaws are associated with habitats characterised by interspersion of ruderal areas, gardens, and built-up districts that provide suitable nest sites. Effective protection measures in urban areas should concentrate on conservation of both suitable cavities in old buildings and relict patches of ruderal and open habitats bordering city centres.

Relation:

Acta Ornithologica

Volume:

37

Issue:

1

Start page:

15

End page:

19

Detailed Resource Type:

Article

Format:

application/pdf

Resource Identifier:

oai:rcin.org.pl:45650

Source:

MiIZ PAN, call no. P.257-37 ; MiIZ PAN, call no. P.4568-37 ; click here to follow the link

Language:

pol ; eng

Rights:

Rights Reserved - Restricted Access

Terms of use:

Copyright-protected material. Access only on terminals at the Museum and Institute of Zoology of the Polish Academy of Sciences, may be used within the limits of statutory user freedoms.

Digitizing institution:

Museum and Institute of Zoology of the Polish Academy of Sciences

Original in:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Projects co-financed by:

Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund

Access:

Closed