http://hdl.handle.net/2268/158 Chercher dans ce canal chercher http://orbi.ulg.ac.be/simple-search http://hdl.handle.net/2268/147650 Titre: Comment étudier la communication entre dauphins captifs et soigneurs ? <br/> <br/>Auteur, co-auteur: Servais, Véronique; Delfour, Fabienne <br/> <br/>Résumé: Cet article présente la manière dont nous avons abordé la communication interspécifique dans le cas d’une étude toujours en cours sur les systèmes de communication formés par des soigneurs et leurs dauphins au Parc Astérix de Paris. La première partie aborde les principales difficultés théoriques et méthodologiques qui se sont posées à nous pour la description de ce système de communication hétérogène. La seconde partie présente le cadre théorique mobilisé, les choix méthodologiques et les résultats attendus (les analyses sont toujours en cours). La troisième partie pose la question de l’intercompréhension sous la forme d’une compréhension sociale qui n’exclut pas le malentendu. http://hdl.handle.net/2268/141024 Titre: Neurophysiological mechanisms of hypnosis <br/> <br/>Auteur, co-auteur: Faymonville, Marie-Elisabeth; Maquet, Pierre; Laureys, Steven http://hdl.handle.net/2268/136025 Titre: Differential effects of histamine H 3 receptor inverse agonist thioperamide, given alone or in combination with the N-methyl-d-aspartate receptor antagonist dizocilpine, on reconsolidation and consolidation of a contextual fear memory in mice <br/> <br/>Auteur, co-auteur: Charlier, Yana; Tirelli, Ezio http://hdl.handle.net/2268/135870 Titre: Cues from introduced fish alter shelter use and feeding behaviour in adult alpine newts <br/> <br/>Auteur, co-auteur: Winandy, Laurane; Denoël, Mathieu <br/> <br/>Résumé: Amphibians are particularly affected by alien fish introductions and are declining worldwide. However, the behavioural mechanisms behind the observed cases of coexistence and exclusion patterns between adult amphibians and fish are poorly understood. In the present study, we aimed at testing the hypothesis that adult newts display different feeding and space use behaviour in the presence of fish cues (i.e. access less food resources and use more shelters than when fish cues are absent). To achieve this we measured behavioural patterns in 100 adult Alpine newts (Mesotriton alpestris) in a replicated laboratory design (20 tanks × 7 replicates across time). Half of trials involved individuals in indirect (visual and olfactory) contact with goldfish (Carassius auratus), a non-predatory species for adult newts. In the presence of fish, significantly more newts hid under shelters than in their absence, but this difference decreased over time. A lower number of newts fed in comparison with controls. These results show that newts responded to fish presence even in the absence of direct contact, but the differences were small. Newts decreased vital activities such as exploration of open areas and feeding. They also adjusted shelter use over time, suggesting a process of habituation or a risk assessment in the absence of direct risk. These results reveal that exploring behavioural patterns can aid in understanding the causes of exclusion and coexistence patterns between fish and amphibians. http://hdl.handle.net/2268/134001 Titre: Comportement de fuite, d'évitement conditionné et conflits de motivations chez le zebrafish : Nouvelles perspectives pour l’approche translationnelle des troubles anxieux ? <br/> <br/>Auteur, co-auteur: Ylieff, Marc; Jacquet, Laurie; Anselme, Patrick http://hdl.handle.net/2268/133497 Titre: Sensitivity to tactile novelty in the terrestrial isopod, Porcellio scaber <br/> <br/>Auteur, co-auteur: Anselme, Patrick <br/> <br/>Résumé: Invertebrates have been studied at biochemical, ecological, and behavioural levels, but current knowledge about the impact that learning may have on behaviour is rather sparse. The present study aimed to examine the sensitivity of isolated rough woodlice (Porcellio scaber Latreille 1804) to the tactile novelty of their environment. A simple way to test this issue was to refer to the place preference paradigm, traditionally used in vertebrates. In Experiment 1, woodlice were placed in a compartment for 30 min in order to assess their ability to develop habituation in the absence of reward. In Experiment 2, woodlice were exposed to a compartment for 20 min (habituation phase) and were then given free choice between that compartment and a novel compartment for 2 min (preference phase). Depending on test conditions, rewards (humidity and/or shelter) were present or absent in the familiar compartment. The familiar and novel compartments differed with respect to the texture of the floor. In Experiment 3, the floor texture was the same in the two compartments in order to control for a novelty effect. The main results indicate that woodlice exhibited increased locomotion time, increased distance travelled, and increased speed in the novel compartment compared to the familiar compartment. There was no preference for either compartment when the floor textures of both were identical. http://hdl.handle.net/2268/131495 Titre: Par-delà la liberté et la dignité (traduction) <br/> <br/>Auteur, co-auteur: Richelle, Marc; Richelle, Anne-Marie <br/> <br/>Commentaires: Ouvrage disponible auprès du Réseau des Bibliothèques de l'Université de Liège (voir catalogue Source http://source.ulg.ac.be) http://hdl.handle.net/2268/130171 Titre: Environmental enrichment can accentuate condtioned reward induced by representative cocaine doses in mice <br/> <br/>Auteur, co-auteur: Geuzaine, Annabelle; Tirelli, Ezio http://hdl.handle.net/2268/129701 Titre: IMPACT OF THE TEMPERAMENT OF YOUNG STALLIONS ON THEIR STRESS REACTIONS WHEN SUBJECTED TO A STANDARDISED VETERINARY EXAMINATION <br/> <br/>Auteur, co-auteur: Peeters, Marie; Verwilghen, Denis; Serteyn, Didier; Vandenheede, Marc http://hdl.handle.net/2268/129697 Titre: Relationships between young stallions's temperament and their behavioral reactions during standardized veterinary examinations. <br/> <br/>Auteur, co-auteur: Peeters, Marie; Verwilghen, Denis; Serteyn, Didier; Vandenheede, Marc http://hdl.handle.net/2268/129427 Titre: Video-tracking locomotor behavior of amphibian tadpoles in response to endosulfan and predation risk <br/> <br/>Auteur, co-auteur: Denoël, Mathieu http://hdl.handle.net/2268/128055 Titre: Effeti comportamentali dell'endosulfan su girini di Rana dalmatina <br/> <br/>Auteur, co-auteur: Lavorato, Manuela; Bernabé, I.; Tripepi, S.; Denoël, Mathieu; Brunelli, Elvira http://hdl.handle.net/2268/127925 Titre: Effects of a sublethal pesticide exposure on locomotor behavior: A video-tracking analysis in larval amphibians <br/> <br/>Auteur, co-auteur: Denoël, Mathieu; Libon, Sylvie; Kestemont, Patrick; Brasseur, Catherine; Focant, Jean-François; De Pauw, Edwin <br/> <br/>Résumé: Organochlorine pesticides such as endosulfan have been shown to have both lethal and sublethal effects on amphibians. In this context, behavioral endpoints have proved their usefulness in evidencing impacts of such chemicals at environmental concentrations that do not necessarily cause mortality. The recent development of video-tracking technologies now offers the possibility of accurately quantifying locomotor behaviors. However, these techniques have not yet been applied to evaluating the toxicity of pesticides in amphibians. We therefore aimed at determining the potential toxicity of endosulfan on endpoints associated with locomotion after short-term environmental endosulfan exposure in Rana temporaria tadpoles and at using these data as warning systems for survival alterations after a longer exposure. To this end, we analyzed video-tracks of 64 tadpoles (two pesticide treatments: 5 and 50 μg L−1, one control and one solvent-control) with Ethovision XT 7 software. The highest endosulfan concentration had a significant effect on all four behavioral endpoints. Contaminated tadpoles traveled shorter distances, swam less often, at a lower mean speed, and occupied a less peripherical position than control tadpoles. The lowest endosulfan concentration had similar but lower effects, and did not affect mean speed during swimming. Survival was reduced only after a long-term exposure to endosulfan and was associated with short-term behavioral dysfunctions. These results show that endosulfan strongly affects the behavioral repertory of amphibian tadpoles, but in different ways depending on concentration, thus suggesting that the pesticide has complex modes of action. Given the importance of locomotion and space use in tadpole success in their aquatic environment, these results confirm the toxic action of endosulfan. By highlighting effects before mortality markers, video-tracking systems also show their potential as sentinels of sublethal effects of pesticides. http://hdl.handle.net/2268/124282 Titre: ESTUDIO COMPORTAMENTAL DE UN GRUPO DE PRIMATES Lagothrix sp. É. GEOFFROY, 1812 (ATELIDAE, PRIMATES) EN SEMI CAUTIVERIO EN UN CENTRO DE RESCATE EN LA AMAZONÍA ECUATORIANA <br/> <br/>Auteur, co-auteur: Carrillo Bilbao, Gabriel Alberto; Martin, Sarah; Martinage, Alice; Rigaux, Gaëlle <br/> <br/>Résumé: El comportamiento de un grupo de Lagothrix sp. en semicautiverio fue estudiado durante los meses de Febrero a Junio 2011. El grupo está conformado por siete hembras y cuatro machos. El proyecto Primates Ecuador mantiene un protocolo en el cual se estudió el comportamiento por medio de barridos y de focales desde las 8:00 hasta las 17:00. Adicionalmente se estudió el uso del estrato. En cuanto al uso de tiempo, se observó dos picos altos del comportamiento de alimentación entre las 8-8h59 y entre las 13h-13h59 que corresponden con la alimentación artificial que se les proporciona en el centro de rescate. En cuanto al uso del estrato vertical, este grupo no utiliza con frecuencia los estratos superiores a los cinco metros. Los individuos de este grupo pasan la mayor parte del tiempo en el suelo, ya sea para alimentarse o para el reposo. Esto nos indica que todavía están lejos para rehabilitarse ya que en el medio natural pasan la mayor parte del tiempo en los estratos superiores de los árboles en buscan de alimento. http://hdl.handle.net/2268/120603 Titre: Action du chlordiazépoxide sur les régulations temporelles dans un comportement conditionné chez le chat <br/> <br/>Auteur, co-auteur: Richelle, Marc http://hdl.handle.net/2268/120602 Titre: Nonconsumption of the reinforcer under drug action <br/> <br/>Auteur, co-auteur: Faidherbe, J.; Richelle, Marc; Schlag, J. http://hdl.handle.net/2268/120601 Titre: Action d'un traitement à la réserpine sur l'ulcère de contrainte chez le rat <br/> <br/>Auteur, co-auteur: Djahanguiri, B.; Haot, J.; Richelle, Marc http://hdl.handle.net/2268/120600 Titre: Effet d'un traitement prolongé au chlordiazépoxide sur un conditionnement temporel chez le rat <br/> <br/>Auteur, co-auteur: Djahanguiri, B.; Richelle, Marc http://hdl.handle.net/2268/120598 Titre: Effet d'un traitement prolongé au chlordiazépoxide sur un conditionnement temporel chez le rat <br/> <br/>Auteur, co-auteur: Richelle, Marc; Djahanguiri, B. http://hdl.handle.net/2268/120597 Titre: Action protectrice du chlordiazepoxide sur l'ulcère de contrainte chez le rat <br/> <br/>Auteur, co-auteur: Haot, J.; Djahanguiri, B.; Richelle, Marc