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Escalated aggressive behaviour and facultative parental care in the nest building gladiator frog, Hyla faber
(1998-02-01)
Agonistic encounters and facultative parental care in Hyla faber were observed in two localities in southeastern Brazil. Maximum male density was 0.9 and 3.3 males/m2 in Campinas and Ribeirão Branco, respectively. Aggression ...
A new report on the clasper movements of a captive Sand Tiger Shark Carcharias taurus (Lamniformes:Odontaspididae) and a possible reason for the behaviour
(2018-01-01)
Elasmobranchs present four clasper movements, which can be seen in different contexts from mating to no obvious reason. Three movements have been reported in Carcharias taurus and here the first occurrence of clasper flaring ...
A new report on the clasper movements of a captive Sand Tiger Shark Carcharias taurus (Lamniformes: Odontaspididae) and a possible reason for the behaviour
(2018-01-01)
Elasmobranchs present four clasper movements, which can be seen in different contexts from mating to no obvious reason. Three movements have been reported in Carcharias taurus and here the first occurrence of clasper flaring ...
The correlation between subordinate fish eye colour and received attacks: a negative social feedback mechanism for the reduction of aggression during the formation of dominance hierarchies
(Elsevier Gmbh, Urban & Fischer Verlag, 2011-12-01)
Eye darkening has been linked to social status in fish. The subordinate's eyes darken, while the eyes of the dominant fish become pale. Although this phenomenon has been described in salmonid fishes and in the African ...
The correlation between subordinate fish eye colour and received attacks: a negative social feedback mechanism for the reduction of aggression during the formation of dominance hierarchies
(Elsevier Gmbh, Urban & Fischer Verlag, 2011-12-01)
Eye darkening has been linked to social status in fish. The subordinate's eyes darken, while the eyes of the dominant fish become pale. Although this phenomenon has been described in salmonid fishes and in the African ...
Hyperactivity induced by the dopamine D2/D3 receptor agonist quinpirole is attenuated by inhibitors of endocannabinoid degradation in mice
(Cambridge University Press, 2013-04)
The present study was designed to investigate the effect of pharmacological inhibition of endocannabinoid degradation on behavioural actions of the dopamine D2/D3 receptor agonist quinpirole in male C57Bl/6J mice. In ...
Mating and aggressive behaviour of Brachyrhaphis olomina (Cyprinodontiformes: Poeciliidae)
(2017)
Despite the increasing interest in the use of intro-mittent male genitalia and coercive mating behaviour in poeciliids, detailed studies of the mating behaviour of most species in this family are lacking. We describe here ...
Escalated aggressive behaviour and facultative parental care in the nest building gladiator frog, Hyla faber
(1998-02-01)
Agonistic encounters and facultative parental care in Hyla faber were observed in two localities in southeastern Brazil. Maximum male density was 0.9 and 3.3 males/m2 in Campinas and Ribeirão Branco, respectively. Aggression ...
Fighting cichlids: Dynamic of intrasexual aggression in dyadic agonistic encounters
(Elsevier Science, 2018-02)
Aggression is an extremely complex behaviour and female aggression is understudied when compared to males. Despite the fact that it has been suggested that conflict among females may be more frequently resolved peacefully, ...