Testing of the "trade - off" hypothesis for three breeding bird species

Šinko, Tanja (2010) Testing of the "trade - off" hypothesis for three breeding bird species. Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

This study was conducted during the breeding seasons in 2008 in the Mokrice area (Hrvatsko Zagorje, north-western Croatia). This research is based on the correlations between clutch size and egg size of three breeding birds (sedentary: Magpie, Pica pica L., and Tree Sparrow, Passer montanus L.; migratory: Starling, Sturnus vulgaris L.). No negative correlation between clutch size and egg size was detected (with exception of Starling's second clutch). The combination of clutch size and egg size determines the total energetic investment in clutch formation by the laying female. In general, the results of our research do not support predictions based on the hypothesis of optimal clutch/egg size ("trade-off hypothesis").

Item Type: Thesis (Diploma thesis)
Keywords: breeding, Magpie, Starling, Tree Sparrow, "trade-off hypothesis"
Supervisor: Dolenec, Zdravko
Date: 2010
Number of Pages: 32
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 05 Sep 2014 11:47
Last Modified: 05 Sep 2014 11:47
URI: http://digre.pmf.unizg.hr/id/eprint/2649

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