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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Relationship between males' body size and position in the chorus in European tree frog (Hyla arborea)
 STUPKOVÁ, Veronika
Males of European tree frog are clustered in the chorus in order to attract females. Males were re-captured, their body size and position in chorus was recorded. Goal of this thesis was investigated a correlation between the males' body size and mating behaviour and their position in the chorus.
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Vocalisation behavior in European treefrog (\kur{Hyla arborea}): Does the social context influence male calling patterns?
 BODNÁR, Tomáš
In this study I investigate for two consecutive breeding seasons male calling patterns in natural population of European treefrog (Hyla arborea), a hylid frog with prolonged breeding season and a lek mating system. I tested the hypothesis that males modify their vocal behavior in different ways when faced with stimuli of competitors with various body size. Further here, the influence of water temperature and size of advertising males on their call properties were concerned.
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