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Between-year dynamics of carnivores and ungulates in the Czech landscape
Schnebergerová, Adriana ; Pyšek, Petr (advisor) ; Sedláček, František (referee)
It is important for the ecological management of wildlife populations in the Czech Republic to know the composition of species in individual habitats. This will allow predictions on the reactions of wildlife based on evolving changes that will occur sooner or later in these habitats due to human activity and natural change of our environment. Camera traps are a powerful tool of the 21st century with which we are able to observe wildlife without major interventions in their lives. With the right experimental design, camera traps allow us to find out details about wildlife life such as their distribution and habitat preferences, population structure, and their behavior. In this work, I used camera traps to determine the species composition of two groups; ungulates and carnivores in different habitats. This thesis analyzes the habitat preferences and hepls to find out to what extent the spatial patterns of occurrence on these two groups are in the monitored habitats over the course of a couple years. Data collection took place from June 2015 to May 2017 in the Central Bohemian Region northeast of Prague. Despite the fact that the area is densely populated and agriculturally exploited, I was able to capture four species of ungulates and nine species of carnivores on a total of 73 camera traps in this...
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Optimization of delivery date in cervids
Schnebergerová, Adriana ; Dušek, Adam (advisor) ; Sedláček, František (referee)
Female mammals adjust their birth date according to actual environmental conditions and their own condition to maximize their reproductive fitness. Optimizing of birth date allows the mothers to maximize not only their own fitness but also the fitness of their offspring. The aim of my bachelor`s thesis is to document the optimization of the delivery date in the deer family (Cervidae), i.e. timing of delivery whereby females can attain successful reproduction. This family is thanks to world-wide areal an ideal taxon for the study of optimization of the delivery date. 40 species and 200 subspecies renders this family one of the most diversified and the most numerous of even-toed ungulates (Artiodactyla). In general, factors that affect the timing of the delivery date are: ecological, behavioral, reproductive, physiological and genetic. These factors include, for example, seasonality, availability and quality of food, condition, social rank and age of the female, the presence of the male and the sex of the offspring. Depending on actual environmental conditions, female deer may either hasten or, on the contrary, delay the delivery date and thus maximize the chances of survival of their offspring. The synchronization of the birth date is another important strategy which allows females to reduce the...
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