Search for dissertations about: "behavioural differences"

Showing result 1 - 5 of 185 swedish dissertations containing the words behavioural differences.

2. 1. Neuromolecular and behavioural profile of teleosts : - effects of boldness, agonistic behaviour and reproductive status

   Author : Arshi Mustafa; Svante Winberg; Per Erik Olsson; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Histamine receptor 1 hrh1 ; histamine receptor 2 hrh2 ; histamine receptor 3 hrh3 ; boldness; personality; aggression; Histaminergic activity; Serotonergic activty 5-HIAA 5-HT ; Dopaminergic activty DOPAC DA ; spiegeldanio spd ; wild caught zebrafish; AB zebrafish; behaviour; brain.;

   Abstract : This thesis investigates if boldness is reflected in the function of brain histaminergic system in zebrafish (Danio rerio). Moreover, behavioural differences in AB line, spiegeldanio (spd) line and wild caught strain of zebrafish have also been explored apart from the winner-loser effect in AB and spd fish. READ MORE

4. 2. Behavioural differences and genetic relationships between four captive populations of red junglefowl (Gallus gallus) : possible implications for conservation

   Author : Jennie Håkansson; Linköpings universitet; []
   Keywords : Red junglefowl; behavioural differences; genetic relationships; captive populations; NATURAL SCIENCES; NATURVETENSKAP;

   Abstract : Conservation of species is to a large extent carried out by zoos where animals are kept in small populations under protected conditions. The ultimate goal of such ex situ conservation programs is to eventually reintroduce the animals into natural habitats to provide support for the survival of the species. READ MORE

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

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

   Abstract : 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. READ MORE

6. 4. Intraspecific divergence and phenotypic plasticity in behavioural profiles of teleost fish

   Author : Johanna Axling; Svante Winberg; Johan Höjesjö; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; animal personality; phenotypic plasticity; Salmo salar; Danio rerio; activity; boldness; aggression.; Biology with specialization in Comparative Physiology; Biologi med inriktning mot jämförande fysiologi;

   Abstract : Behavioural differences between and within individuals can greatly affect the outcome of behavioural studies. In addition, behavioural interactions between individuals can compromise the health and welfare of captive fish. READ MORE

7. 5. Phenotypic and social effects on behavioural trade-offs in Eurasian perch

   Author : Gustav Hellström; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Trading between conflicting demands is a fundamental part in how animals interact with its environment and social surrounding. Knowledge of what factors that are affecting behavioural decisions is central in our understanding of animal adaptation and ecology. READ MORE