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Intraspecific communication in rodents with a special focus on the model genus Rattus
Rychtecká, Eliška ; Rudolfová, Veronika (advisor) ; Vojtěchová, Iveta (referee)
The genus Rattus includes several dozen species. Among the most significant that I am focusing on in this work are the Norway rat (Rattus norvegicus), the black rat (Rattus rattus) and the Polynesian rat (Rattus exulans). Representatives of these species are social animals inhabiting different enviroments, whether they are tree canopies or burrow systems. Intraspecific communication of rodents is very diverse, specifically in the genus Rattus. According to the types of signals, intraspecific communication can be divided into acoustic, visual, tactile or chemical. We can distinguish multimodal communication as a special chapter, where signals from different modalities occur together, interwine or are gradually added to each other. Individual species of the genus Rattus can differ in the form of signals. Furthermore these signals also differ between individual sexes so we could set apart communication between males and females during mating. Key words: rodents, norway rat, black rat, communication, signal, vocalization, posture, marking
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