Search for dissertations about: "mutualism"

Showing result 1 - 5 of 9 swedish dissertations containing the word mutualism.

  2. 1. Dynamics of the aphid-ant mutualism

    Author : Karolina Tegelaar; Olof Leimar; Judith Bronstein; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mutualism; transgenerational; aphids; aphid-ant; conflict of interest; E -β-farnesene; phenotypic plasticity; predation risk; wing induction; maternal effect; reproductive investment; embryo size; etologi; Ethology;

    Abstract : An appreciation of the role of mutualism is essential when studying ecology and evolution in most ecosystems. Information covering aspects of mutualistic interactions can serve as a complement to the somewhat one-sided perspective from the 1950’s and 60’s that is used when teaching biology. READ MORE

  4. 2. Predator psychology and mimicry evolution - a theoretical analysis

    Author : Alexandra Balogh; Olof Leimar; Michael Speed; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Müllerian mimicry; two-step evolution; gradual evolution; mutualism; predator psychology; Ethology and behavioural ecology; Etologi och beteendeekologi; etologi; Ethology;

    Abstract : The evolution of Müllerian mimicry depends on many factors, among which predator psychology is the most important one. Predator avoidance learning, generalization and discrimination are primary selective agents during the evolutionary process. READ MORE

  5. 3. Pollination adaptations in the Cimicifugae and the evolutionary origin of pollinator-plant mutualism

    Author : Olle Pellmyr; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  6. 4. Behaviour of Lycaenid butterfly larvae in their mutualistic interactions with ants

    Author : Annkristin H. Axén; Judith L. Bronstein; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fjärilar; myror; djurekologi; etologi; Ethology;

    Abstract : Interspecific mutualism often involves partners trading different kinds of services. The cost and benefits of the trade may differ from one interaction to the next, or fluctuate over time in a single interaction, due to factors both internal and external to the mutualism itself. READ MORE

  7. 5. Plant Inducible Responses to Damage: Evolution and Ecological Implications

    Author : Johannes Järemo; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; herbivory; inducible defences; compensation; Ecology; Ekologi;

    Abstract : Abstract Inducible plant responses to damage, i.e. inducible defence responses and compensatory growth responses, are theoretically examined in an evolutionary and ecological context. Inducible defences are generally considered to be beneficial under conditions of low risk of herbivory and when initial damage is moderate. READ MORE