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Population densities and habitat preference granivorous birds (\kur{Passer domesticus, Passer montanus, Streptopelia decaocto}) in human settlements.
BANDHAUEROVÁ, Jaroslava
The most often mentioned causes of decrease in a number of granivoric synantropic birds are primarily changes in agriculture (liquidation of factory farming, using of pesticides, effective methods of harvest, consequences of intensification of agriculture) and changes in socioeconomical status of population (higher care of public green, decrease in numbers of small poultry farms, modernization of buildings etc.), which results in lack of food and opportunity to nest. Goal of this work is primarily evaluate an influence of the agricultural methohds on numbers of the house sparrow (Passer domesticus), tree sparrow (Passer montanus) and collared dove (Streptopelia decaocto) set a preference of habitats for selected species, addiction of their occurence on presence of small poultry farms and factory farming and compare the results with winter monitoring. Then evaluate preferences of nest habitats for house sparrow (Passer domesticus) and tree sparrow (Passer montanus). Monitoring was made in 48 chosen locations in the Czech Republic (most of those locations in South Bohemia) during the nesting period (February May) in years 2015 2016. The data evaluation was made through computer software Microsoft Excel and R v. 2.8.1 (2008). The research shows that factory farming has essentional influence on occurence of all three selected species and difference in occurence between winter and the nesting period is demonstrable. Also the difference in presence of collared dove and house sparrow is demonstrable near factory farms.
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Biotopové nároky synantropních ptáků (vrabec domácí, vrabec polní a hrdlička zahradní)
MACHOVÁ, Markéta
Aim of this study was to assess distribution and abundance of common synanthropic species of birds (House sparrow, Tree sparrow, Eurasian collared dove and Blackbird) in area of the city České Budějovice in the Czech Republic in autumn and winter. Habitat preferences of these species were analysed. Study also determined influence of the certain characteristics of urban vegetation on their occupation by both species of sparrows.
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Antipredatory behaviour, sexual selection and reproductive success in domestic sparrow (Passer domesticus).
Klvaňová, Alena ; Exnerová, Alice (advisor) ; Mlíkovský, Jiří (referee) ; Procházka, Petr (referee)
Anti-predator behaviour, sexual selection and reproductive success in the House Sparrow Passer domesticus Alena Klvaňová Summary of the thesis Individual components of parental care are disproportionally distributed among the parents in the House Sparrow. While the female broods the nestlings more often and feeds them more frequently, the male defends the nest more intensely. In an experimental study the parents did not adjust their nest defence intensity to behaviour of their partners, nor to brood parameters. Only males tended to defend the sooner broods more intensely, which is in concordance with the "brood value hypothesis". Male contribution to nestling feeding affected their body mass. Male nest defence intensity increased with the size of their melanin ornament. Thus, we assume that the ornament could signal male investment in this component of parental care, while it does not correlate with feeding frequency and time spent by incubation. This output is probably caused by pleiotropic effect of genes regulating melanogenesis, affecting e. g. testosterone plasma level, which is associated with increased agression and lower intensity of other components of parental care as nestling provisioning or incubation. We have also aked the question whether the anti-predator strategy in House Sparrow is stable...
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House sparrow and tree sparrow in the rural settlements of Tabor region - density, distribution a their correlates
NEŠPOR, Marek
The theoretical part of my thesis was to characterize the house sparrow as a most abundant synanthropic bird species. I mentioned decline in abundance around the area and a decline in numbers in the Czech Republic and all available information on the causes of the decline. My goal in the practical field part was to determine the abundance and distribution of house and tree sparrow in the selected villages, to determine whether the abundance and distribution influence the characteristics of villages and individual buildings. The project was conducted in cooperation with the Faculty of Science of South Bohemia in Czech Budweis, ISBE AS CR, v.v.i and CSO.
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