A5021639534- Animal Behavior and Reproduction
- Neuroendocrine regulation and behavior
- Fish Ecology and Management Studies
- Reproductive biology and impacts on aquatic species
- Evolutionary Psychology and Human Behavior
- Marine and fisheries research
- Zebrafish Biomedical Research Applications
- Plant and animal studies
- Primate Behavior and Ecology
- Crustacean biology and ecology
- Marine animal studies overview
- Physiological and biochemical adaptations
- Fish biology, ecology, and behavior
- Aquaculture Nutrition and Growth
- Amphibian and Reptile Biology
- Evolutionary Game Theory and Cooperation
- Aquaculture disease management and microbiota
- Fish Biology and Ecology Studies
- Animal Vocal Communication and Behavior
- Coral and Marine Ecosystems Studies
- Animal Behavior and Welfare Studies
- Neurobiology and Insect Physiology Research
- Insect and Arachnid Ecology and Behavior
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Stress Responses and Cortisol
Instituto Gulbenkian de Ciência
2016-2025
ISPA - Instituto Universitário
2014-2024
Champalimaud Foundation
2015-2024
Instituto Superior de Teologia Aplicada
1998-2015
University of Algarve
2009-2015
University of Évora
2009
University of Nottingham
1998-1999
Emotional contagion is the most ancestral form of empathy. We tested to what extent proximate mechanisms emotional are evolutionarily conserved by assessing role oxytocin, known regulate empathic behaviors in mammals, social fear zebrafish. Using oxytocin and receptor mutants, we show that both necessary sufficient for observer zebrafish imitate distressed behavior conspecific demonstrators. The brain regions associated with homologous those involved same process rodents (e.g., striatum,...
Many of the signals that animals use to communicate transmit relatively large distances and therefore encompass several potential signallers receivers. This observation challenges common characterization animal communication systems as consisting one signaller receiver. Furthermore, it suggests evolution behaviour must be considered occurring in context networks rather than dyads. Although considerations selection pressures acting upon have rarely been expressed such terms, has noted many...
In social species animals should fine-tune the expression of their behavior to environments in order avoid costs engaging costly interactions. Therefore, competence, defined as ability an animal optimize its a function available information, be considered performance trait that impacts on Darwinian fitness animal. Social competence is based behavioral plasticity which, turn, can achieved by different neural mechanisms plasticity, namely rewiring or biochemically switching nodes putative...
Animal conflicts are influenced by social experience such that a previous winning increases the probability of next agonistic interaction, whereas losing has opposite effect. Since androgens respond to interactions, increasing in winners and decreasing losers, we hypothesized socially induced transient changes androgen levels could be causal mediator winner/loser effects. To test this hypothesis, staged fights between dyads size-matched males Mozambique tilapia ( Oreochromis mossambicus )....
Aggression is a key component of the behavioral repertoire animals that impacts on their Darwinian fitness. The available genetic tools in zebrafish make this species promising vertebrate neurogenetic model for study neural circuits underlying aggressive behavior. For purpose, detailed characterization behavior and its consequences first needed. In article we establish simple protocol reliably elicits expression fighting dyads characterized it. agonistic expressed during dyadic has temporal...
Some humans thrive whereas others resign when exposed to threatening situations throughout life. Social support has been identified as an important modulator of these discrepancies in human behaviour, and other social animals also exhibit phenomena which individuals recover better from aversive events conspecifics are present - aka buffering. Here we studied buffering zebrafish, by exposing focal fish stimulus (alarm substance AS) either the absence or presence conspecific cues. When AS both...
Significance Within social groups, there are animals of different status that express behavioral profiles paralleled by patterns gene expression in the brain. However, is not fixed, but rather depends on interactions; hence, group living must be able to switch between status-dependent behavior and brain profiles. Here we show for first time, our knowledge, what triggers a genomic response interaction zebrafish subjects’ assessment than fixed releaser cue environment. The occurrence fighting...
For male vertebrates, androgens are considered physiological mediators of the trade-off between mating and parenting effort. About 30 years ago, challenge hypothesis provided a conceptual framework to explain variation in androgen levels among individuals species, primarily as function competition parental care. Initially developed in—and applied to—birds, was rapidly adopted for other vertebrate groups even insects. Experimental evidence on birds, however, offers limited support terms...