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Dominance hierarchy in the male group of ruffed lemurs (\kur{Varecia} spp.) in the Ostrava ZOO
STEHLÍKOVÁ, Jitka
This study investigates a dominance hierarchy in a male group of ruffed lemurs (Varecia spp.). I introduce a new method of data processing in unstable and inconsistent dominance hierarchy. Data were collected in the Ostrava ZOO during 30 days in the summer of 2009 and 28 days in the of winter 2010. The results demonstrate unusual structure in the sequences of agonistic interactions. The lemur group exhibited unstable and inconsistent dominance hierarchy with a low level of linearity. It appears that dominance hierarchy in ruffed lemurs is based on their social role in the family group and not on agonistic interactions.
The ethogram for Guenther'vole with emphasis on social behaviour.
BRIXOVÁ, Lenka
This master thesis contains detailed description of the elements of Günthers?s vole social behaviour, from agonistic, investigative, and amicable, to reproductive behaviour. Each of the observed behavioural elements is put into context, interpreted, and compared with behaviour reported from other vole or rodent species. The resulting ethogram will be helpful in future ethological studies of this species.

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