Breeding characteristics of tree sparrow (Passer montanus L.) in Hrvatsko Zagorje

Raspor, Majda (2013) Breeding characteristics of tree sparrow (Passer montanus L.) in Hrvatsko Zagorje . Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

Tree sparrow (Passer montanus L.) is bird from the family of sparrows Passeridae. It occurs in lowland areas, rarely in areas higher than 700 m above sea level. The living area of this birds are gardens, fields, parks, old orchards, forest edges near the village, and also occurs in populated urban areas. In Croatia, tree sparrow nests in the continental part, but in recent years also is nesting in Croatian part of the Mediteranean. In this research, we tried to find out something about the characteristics of nesting 2012th year. The mean egg length was 18,91 mm, mean breadth 13,99 mm, mean volume 1891,58 mm3 and mean egg shape index 1,34. The average number of eggs in the nest was 5,04, and the average number of hatched bird 4,5. Between individual nesting there were no significant differences in the studied parameters. On the characteristics of nesting did not affect the date of laying or orientation nestbox. “The trade-off hypothesis” has not been proven.

Item Type: Thesis (Diploma thesis)
Keywords: tree sparrow, dimension of eggs, number of young to hatch, orientation nestbox, „trade-off hypothesis“
Supervisor: Dolenec, Zdravko
Date: 2013
Number of Pages: 37
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Grozdana Sirotic
Date Deposited: 11 Mar 2014 17:32
Last Modified: 22 Sep 2014 09:18
URI: http://digre.pmf.unizg.hr/id/eprint/570

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