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Seasonal variation of the territorial behaviour of the European beaver (Castor fiber L.).
Kadlecová, Hana ; Horáček, Ivan (advisor) ; Červený, Jaroslav (referee)
The presented thesis deals with the temporal and spatial changes in activity of the European beaver (Castor fiber L.) during different seasons. Basic dataset was obtained by continuous telemetric monitoring of selected individuals in years 2008 and 2009 in two different geographical areas, namely in the Bohemian forest and in southern Moravia. The scope of the thesis was to record, evaluate and interpret the behavior of European beaver during the year. I focused myself especially on the beginning and end of activity in relation to incidence of sunrise and sunset, duration of stay in the field, changes in the size of actively-used area and time-duration and length of the movement. In cases where there were more active individuals monitored within the studied area, I also watched for their mutual interaction. In statistical analysis of gained data I also took into account the sex and age of the individuals. Beaver's behavior varies during the year. They are most active in spring and autumn, while in winter their activity decreases significantly. This observation is valid not only for the time duration and length of movement trajectories, but also for the size of actively-used area. The beginning of activity is strongly correlated with the sunset, while the end does not show any correlation with...
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Bats of the genus Plecotus in the fossil record of central and SE Europe.
Balážová, Alena ; Horáček, Ivan (advisor) ; Hanák, Vladimír (referee)
In this thesis a review and detailed morphometric analysis of fossil material of genus Plecotus Geoffroy, 1818 (Microchiroptera) from central Europe from miocene till recent was done. Both metric and phenetic features of skull ant teeth were compared with recent european species of this genus. The most detailed attention was focused on fossil species Plecotus abeli Wettstein-Westersheim 1923, which is most likely only an extreme phenotypic variety of Plecotus auritus group. Fossil record from Karlukovo (Bulgaria) was studied too. The first record of Plecotus macrobullaris Kuzjakin, 1965 was found there.
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