6 documents found, page 1 of 1
Audience effects in territorial defense of male cichlid fish are associated wit...
Roleira, António; Oliveira, Gonçalo A.; Lopes, João Sollari; Oliveira, Rui FilipeAnimals communicate by exchanging signals frequently in the proximity of other conspecifics that may detect and intercept signals not directed to them. There is evidence that the presence of these bystanders modulates the signaling behavior of interacting individuals, a phenomenon that has been named audience effect. Research on the audience effect has predominantly focused on its function rather than on its pr...
Assessment of fight outcome is needed to activate socially driven transcription...
Oliveira, Rui Filipe; Simões, José Miguel; Teles, Magda; Oliveira, Catarina R.; Becker, Jorg D.; Lopes, João SollariGroup living animals must be able to express different behavior profiles depending on their social status. Therefore, the same genotype may translate into different behavioral phenotypes through socially driven differential gene expression. However, how social information is translated into a neurogenomic response and what are the specific cues in a social interaction that signal a change in social status are q...
Brain Transcriptomic Response to Social Eavesdropping in Zebrafish (Danio rerio)
Lopes, João Sollari; Abril-de-Abreu, Rodrigo; Oliveira, Rui F.Public information is widely available at low cost to animals living in social groups. For instance, bystanders may eavesdrop on signaling interactions between conspecifics and use it to adapt their subsequent behavior towards the observed individuals. This social eavesdropping ability is expected to require specialized mechanisms such as social attention, which selects social information available for learning...
Social interactions elicit rapid shifts in functional connectivity in the socia...
Teles, Magda; Almeida, Olinda; Lopes, João Sollari; Oliveira, Rui FilipeAccording to the social decision-making (SDM) network hypothesis, SDM is encoded in a network of forebrain and midbrain structures in a distributed and dynamic fashion, such that the expression of a given social behaviour is better reflected by the overall profile of activation across the different loci rather than by the activity of a single node. This proposal has the implicit assumption that SDM relies on in...
Social instability promotes hormone–behavior associated patterns in a cichlid fish
Almeida, Olinda; Gonçalves-de-Freitas, Eliane; Lopes, João Sollari; Oliveira, Rui FilipeAndrogens are known to respond to social challenges and to control the expression of social behavior and reproductive traits, such as gonadal maturation and sperm production, expression of secondary sex characters and reproductive behaviors. According to the challenge hypothesis variation in androgen levels above a breeding baseline should be explained by the regime of social challenges faced by the individual ...
Criação de uma aplicação para modelar o crescimento da dourada (Sparus aurata) ...
Lopes, João SollariA aquacultura começa a ter um papel fundamental como fonte de proteína num Mundo com um crescimento populacional cada vez maior. Os mares já se encontram sobre-explorados, não podendo a pesca manter-se como fonte única de peixe. Será necessário inclusive, num futuro próximo, utilizar a produção aquícola para o repovoamento dos oceanos, uma vez que existem já muitas populações ictícolas quase extintas. Estudos a...