Sökning: "behavioural syndromes"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden behavioural syndromes.

1. 1. Interaction between dispersal and behavioural syndromes - empirical approach in a fragmented population of passerine birds

   Författare :Gregory Daniel; Blandine Doligez; Lars Gustafsson; Thierry Boulinier; Uppsala universitet; []
   Nyckelord :dispersal; behavioural syndromes; heritability; personality traits; neophobia; aggressiveness; risk-taking behaviour; collared flycatcher; Ficedulla albicollis; dispersion; syndromes comportementaux; héritabilité; traits de personnalité; néophibie; aggressivité; prise de risque; gobemouche à collier; Ficedulla albicollis; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

   Sammanfattning : Dispersal is a key life history trait for ecological and evolutionary processes in wild populations. The latest research has particularly focused on the correlation between behavioural traits and dispersal, in order to emphasize the existence of behavioural syndromes of dispersal, and on the estimation of the genetic basis of the dispersal behaviour. LÄS MER

3. 2. The relationship between personality and social dominance in the domestic fowl – a critical perspective

   Författare :Anna Favati; Olof Leimar; Hanne Løvlie; Andrew Sih; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; aggression; behavioural syndromes; chicken; Gallus gallus domesticus; intra-sexual selection; resource holding potential; social hierarchy; social rank; etologi; Ethology;

   Sammanfattning : Social dominance relationships are formed within numerous animal species and reduce costly fights over resources. Dominant individuals often enjoy greater access to important resources such as food and mating partners, and are generally more aggressive, bold, active and explorative compared to subdominant individuals. LÄS MER

4. 3. Behaviour under predation risk - antipredator strategies, behavioural syndromes and sex-specific responses in aquatic prey

   Författare :Sanna Harris; Biodiversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; phenotypic integration; Poecilia reticulata; Asellus aquaticus; behavioural syndromes; chemical cues; predation; antipredator behaviour;

   Sammanfattning : In many natural ecosystems, predation is well recognized as a strong evolutionary force, and predator-mediated selection has been demonstrated to induce changes in prey morphology, life history and behaviour. In my thesis, I have focused on behavioural responses in aquatic prey under the risk of predation. LÄS MER

5. 4. Autism syndromes in three behavioural phenotype conditions. A clinical psychiatric study of 76 individuals with Möbius sequence, CHARGE syndrome, and oculo-auriculo-vertebral spectrum

   Författare :Maria E I Johansson; Göteborgs universitet; []
   Nyckelord :autism syndromes; behavioural phenotype conditions; Möbius; CHARGE; OAV; ADI-R; CARS; ABC; brain stem;

   Sammanfattning : AUTISM SYNDROMES IN THREE BEHAVIOURAL PHENOTYPE CONDITIONS A clinical psychiatric study of 76 individuals with Möbius sequence, CHARGE syndrome, and oculoauriculovertebral spectrum Maria Johansson Institute of Neuroscience and Physiology, Child and Adolescent Psychiatry, Göteborg University, Sweden Abstract Objectives: (1) Examine the prevalence of autism syndromes in three different Behavioural Phenotype Conditions (BPCs), (2) examine background and associated factors/conditions, and (3) describe and evaluate diagnostic difficulties in this field of research. Method: As part of multidisciplinary surveys of Möbius sequence (Möbius) (n=25), CHARGE syndrome (CHARGE) (n=31) and oculoauriculovertebral spectrum (OAV) (n=20), the occurrence of autism symptoms was assessed utilizing the DSM-III-R and DSM-IV checklists for autistic disorder (AD), the Autism Diagnostic Interview-Revised (ADI-R), the Childhood Autism Rating Scale (CARS) and the Autistic Behavior Checklist (ABC). LÄS MER

7. 5. Social dominance and personality in male fowl (Gallus gallus domesticus)

   Författare :Anna Favati; Olof Leimar; Charlie Cornwallis; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; behavioural syndromes; intra-sexual selection; phenotypic plasticity; social dominance; chicken; etologi; Ethology;

   Sammanfattning : Individuals in social species commonly form dominance relationships among each other, andare often observed to differ in behaviour depending on their social status. However, whethersuch behavioural differences are a consequence of dominance position, or also a cause to it,remains unclear. LÄS MER