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Individuální variabilita vokalizace kalouse ušatého (\kur{Asio otus}).
HORNÁTOVÁ, Lucie
The presented work describes the vocalization of Long-eared owl (Asio otus). I recorded the territorial calls of males and females within an urban population of České Budějovice. The recordings were analysed and the temporal and frequency characteristics of recorded calls were measured. I tried to seek the distinctiveness among particular individuals using the measured characteristics of the vocalization.
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Telemetry of the Long eared owl (Asio otus) in the wintering place in Kladno
Kolomazníková, Jana ; Řezníček, Jan (advisor) ; Hanel, Lubomír (referee)
23/6/2011 Kosterní zbytky v potravě kalouse ušatého 7 jako ukazatele populačních změn drobných savců 1.2 Abstrakt v anglickém jazyce The diploma thesis is called Skeletal Remnants in Diet of Long-eared Owl Asio otus (Linnaeus, 1758) as The Indicators of Fluctuation in Size of Population of Small Mammals in Wintering Place in Kladno-Kročehlavy. The thesis deals with oversight of Long-eared Owl in his wintering site, analysis of his diet, and estimation of population changes in the diet of small vertebrate. It also consists of the estimation of changes in gender of small mammals and in the content of his diet, and of studies morphological traits done on pelvises of males and females of common vole. As part of didactic section there were laboratory exercises completed. The focus was on the analyses of pellets and the assignment of small vertebrates in the diet of Long-eared Owl. The main monitoring was completed in the period of autumn 2009 till the end of winter 2010. The results showed significant changes in the population of small mammals included in the diet of Long-eared Owl could bring new knowledge about population dynamics of small mammals. Another part of monitoring of population of Long-eared Owl was also tramping and ringing. Most of the materials used for this analysis of the diet came from the...
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The Winter Food Monitoring of Long-eared Owl (Asio otus) in Wintering Grounds
Pražská, Nella ; Andreska, Jan (advisor) ; Hanel, Lubomír (referee)
The aim of my bachelor's thesis is to monitor the diet of the Long-eared owl (Asio otus) in wintering grounds in selected localities in the Central Bohemian Region in the vicinity of the Kladno district. These are two localities that have been monitored before, so I continue on previous work with the same focus. The main focus is the collection, analysis of discards and its methodology. I also deal with the change of food of the eared owl during a certain period with a focus on the winter phase in connection with the temperature and the total precipitation in the given localities. The work also deals with the comparison of the results of monitoring the composition of the diet of the Long-eared owl in the same and other localities from previous research.
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Telemetry of the Long eared owl (Asio otus) in the wintering place in Kladno
Kolomazníková, Jana ; Řezníček, Jan (advisor) ; Hanel, Lubomír (referee)
23/6/2011 Kosterní zbytky v potravě kalouse ušatého 7 jako ukazatele populačních změn drobných savců 1.2 Abstrakt v anglickém jazyce The diploma thesis is called Skeletal Remnants in Diet of Long-eared Owl Asio otus (Linnaeus, 1758) as The Indicators of Fluctuation in Size of Population of Small Mammals in Wintering Place in Kladno-Kročehlavy. The thesis deals with oversight of Long-eared Owl in his wintering site, analysis of his diet, and estimation of population changes in the diet of small vertebrate. It also consists of the estimation of changes in gender of small mammals and in the content of his diet, and of studies morphological traits done on pelvises of males and females of common vole. As part of didactic section there were laboratory exercises completed. The focus was on the analyses of pellets and the assignment of small vertebrates in the diet of Long-eared Owl. The main monitoring was completed in the period of autumn 2009 till the end of winter 2010. The results showed significant changes in the population of small mammals included in the diet of Long-eared Owl could bring new knowledge about population dynamics of small mammals. Another part of monitoring of population of Long-eared Owl was also tramping and ringing. Most of the materials used for this analysis of the diet came from the...
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Diet composition of Common Kestrels Falco tinnunculus and Long-eared Owls Asio otus coexisting in an urban environment
LÖVY, Matěj
We studied dietary composition of urban populations of Common Kestrels (Falco tinnunculus) and Long-eared Owls (Asio otus) under fluctuating vole abundance. We tested hypotheses that the proportion of alternative prey in the diet increase with decreasing vole abundance throughout the years and that alternative prey differ between raptors due to different daily activities and/or hunting techniques. Finally, we tested whether the proportion of voles in the diet is influenced by the nest position within the city.
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